ESKOM arnot power station: mv switchgear upgrade – approved electronic devices compliance standard (3-Year contract)

This specification standardises and rationalises medium voltage Ring Main Units (RMUs) and IRTU fitted RMUs for Eskom, including remote terminal units and protection systems for free-standing indoor/outdoor applications. It covers distribution automation, IPP applications, high-risk enclosures, and 36 kV units for Generation and Distribution.

Returnable Documents: The full Technical Schedules B (including Test Schedules and Deviation Schedules) must be completed and submitted together with Technical Schedules A for approval at the time of tender. This includes individual RMU and IRTU fitted RMU item Technical Schedules.

Suppliers must be conversant with and comply fully with Specification 240-56030406. They must obtain all necessary supporting documents. Suppliers must have ISO 9001 Quality Management Systems (normative reference). Any deviation constitutes non-conformance unless agreed in advance by a delegated Eskom Cable Systems Specialist based on sound engineering judgement. Proof of performance for protection systems up to the circuit-breaker's rated short-circuit breaking current is required. SPRs using external DIP switches/potentiometers for settings are not accepted. Configuration software must be provided at no extra cost and be compatible with specified Windows OS.

This specification covers Eskom’s requirements for new factory-assembled Ring Main Units (RMUs) and Integrated Remote Terminal Unit (IRTU) fitted RMUs rated for three-phase cable systems from 3.6 kV to 36 kV, for freestanding indoor or outdoor operation at 50 Hz. It distinguishes between inland and coastal applications and excludes bulk metering kiosks. Key requirements include compliance with SANS 1874 and other referenced standards, specific configurations, lightning impulse withstand levels, cable test facilities, remote tripping, fuse-link specifications, protection equipment (SPR or IED), RTU requirements, DC supply, control plant enclosure, plant status controls, wiring, LV AC power supply, MV cable termination enclosures, gas pressure indication, live circuit indication, earth fault indication, padlock protection, concrete plinths, corrosion protection, documentation, testing, and marking.

Suppliers must comply with ISO 9001 and other referenced standards. Specific requirements include software/firmware version control, configuration management, test reports, and vendor responsibilities for setup and testing.

All RMUs and IRTU fitted RMUs must comply with SANS 1874 and this specification, with this specification taking precedence in case of conflict. Suppliers must be conversant with and comply with all requirements; no deviations are accepted without prior agreement from Eskom. The process for monitoring uses technical evaluation criteria and technical schedules A and B as per SANS 1874.

Safety requirements include internal arc classification testing per SANS/IEC 62271-202 for outdoor RMUs and SANS/IEC 62271-200 for indoor units, with submission of type test reports and videos for Eskom safety review. Live circuit indication and earth fault indication are mandated.

Environmental considerations include corrosion protection based on inland (medium pollution) or coastal (very heavy pollution) classifications per SANS 60815-1, with specific corrosivity ratings and detailed specifications referenced.

The specification outlines technical requirements for RMUs and IRTU fitted RMUs, including configurations, testing, protection systems, wiring, power supply, enclosures, and documentation. It references Eskom standards and drawings, with no explicit contractual terms like duration or penalties provided.

The evaluation includes detailed protection requirements for IRTU fitted RMUs with Protection IEDs, covering harmonic restraint, overcurrent and earth fault functions, directional power, live load blocking, negative phase sequence, frequency and voltage protection, measurement functions, event recording, configuration software, and sensor requirements. Suppliers must provide specific technical details in schedules.

• Closing date: 21 August 2026 at 10h00.
• A clarification meeting will be held on 30 July 2026 from 09h00 to 12h00 at Arnot Power Station.

• Contact Person: Phomello Thobejane.
• Email: [email protected].
• Phone: +27 13 297 9684.

Returnable documents are required but not specified in detail.

Tenderers must have a CIDB contractor grading of 8EP or 8ME or higher. Joint ventures are permitted if all members are CIDB registered, the lead partner meets the grading requirement (or is one level below), and the combined grading equals or exceeds 8EP/8ME.

• Scope: The provision of Outside Plant MV Switchgear Upgrade at Arnot Power Station for a period of 3 years.

• CIDB Requirements are applicable.
• Tenderers must have a Construction Industry Development Board (CIDB) contractor grading of 8EP or 8ME or higher.
• Joint ventures are eligible provided every member is registered with the CIDB, and the lead partner has a contractor grading designation in the 8EP or 8ME class of construction work (or not lower than one level below).

• Tenderers must have a CIDB contractor grading of 8EP or 8ME or higher.
• Joint ventures are eligible if all members are CIDB registered, and the lead partner meets the grading requirement (or is not lower than one level below).

• Contact details: Phone +27 13 297 9684, Email [email protected].

• This document specifies requirements for power, control, and control & instrumentation (C&I) cables for Eskom Generation power stations, applicable to peaking stations and renewable plants.
• It assists in the design and installation of cables, requiring work to align with approved standards, codes, and manufacturer recommendations.
• Cables for Panels, Distribution Boards, and Motor Control Centres are excluded (covered by switchgear standards).
• The document applies within Eskom Generation and references numerous Eskom and SANS standards.
• Document metadata: Unique Identifier 240-56227443, Revision 2, 47 pages, Next Review March 2027, Controlled Disclosure.

• All cables offered must carry valid product type tests in accordance with the relevant SANS standards.
• Copies of all relevant type test reports and required tender returnable documentation must be submitted at the time of tender enquiry submissions.
• ISO 9001 Quality Management Systems is listed as a normative reference, indicating quality management system compliance is expected.
• The document is a technical standard; specific evaluation scoring or preference points are not stated.

• Scope: Requirements for power, control, and control & instrumentation (C&I) cables for Eskom Generation power stations, including peaking and renewable plants.
• Exclusions: Cables for wiring of Panels, Distribution Boards, and Motor Control Centres are not covered (covered by switchgear standards).
• Statutory compliance: Must adhere to OHS Act, SANS 10142-1, SANS 1507, SANS 1339, and SANS 10198-1.
• Cable identification: Use Eskom standard cable codes per drawings 0.00/1310 (power/control) and 0.00/2713 (instrument).
• Cable types and specifications:

• Medium Voltage XLPE cables: comply with SANS 1339; voltage ratings per system (1.9/3.3, 3.8/6.6, 6.35/11, 12.7/22 kV); copper or aluminium Class 2 conductors; single-core unarmoured; type B construction; strippable semi-conducting core screen; XLPE bedding; flame-retardant reduced halogen PVC outer sheath (≤15% halogen); water blocking where specified; copper tape screening.
• Low Voltage power cables: comply with SANS 1507-3; rated 600/1000 V; copper stranded conductors (CCA/aluminium alloy allowed for pilot projects); PVC insulation; colour coding per SANS 1507-3; PVC bedding; aluminium wire armour for single-core, galvanized steel wire armour for multi-core; UV-stabilised PVC outer sheath.
• Mineral insulated (rubber) cables: per SANS 1574-5; only for high-temperature routes; 600/1000 V rating; RD7 rubber insulation; RS8 protective covering.
• Control, protection and instrumentation cables:
• BVXnnCM multicore: per SANS 1507-3; 600/1000 V; copper stranded; PVC insulation; colour coding as LV; PVC bedding; armouring optional per schedule A; UV-stabilised sheath.
• BVSnnCM multicore: thermoplastic insulated, untwisted pairs, tin foil screen, glass fibre cover; only when specifically requested by Employer.
• UVGnnACM multicore: for instrumentation with noise/cross-talk minimisation; twisted pairs with metallic tape screen; 300/500 V; conductors per SANS 1411-1 (min 7 strands); flexible grade PVC insulation, flame retardant reduced halogen (≤15% HCl); core identification via colour code and ring groups; PVC sheath and bedding; galvanized steel wire armour unless specified.

• Flexible connections: high-temperature flexible cables in flexible conduit for equipment subject to vertical movement (e.g., boiler face).
• Marking: cable sheaths black with colour traces (red/orange/blue/white) indicating flame retardancy/halogen properties; legible marking per SANS standards; additional info (voltage, CSA, name/trademark).
• Documentation: cable dimensional data, rating information (current ratings, short-circuit ratings, mass, electrical parameters).
• Fire performance: requirements vary by installation (open racks, covered trays, buried, tunnels, buildings).
• Cable layout, racking, laying: Employer provides layout drawings; contractor provides racking system; detailed rules for rack separation, loading capacities, support intervals, clipping points, sleeve pipes, bending radii, route markers.
• Termination: insulation coordination, gland plates, switchgear terminations, MV/LV terminations, earthing, lugs/ferrules, connection torque, jointing.
• Testing: type tests, sample tests, routine tests, site tests; insulation resistance, high voltage withstand, conductor resistance; commissioning procedure.

• Cable racking and laying requirements:

• 1000 mm wide rack generally for cable risers only; exceptional horizontal runs.
• Support columns must limit deflection to 1:150 at midpoint between supports (e.g., 5 mm at 1500 mm spacing).
• Cantilever arms must not deflect more than 1:150 at front.
• Perforated cable tray loads specified in tables.
• Separate power and control cable entry into buildings to avoid interference; use separate openings where possible.
• Racking may be used by others at contract rates; Engineer advises exact requirements and completion dates.
• Armoured/unarmoured multi-core cables supported every 375 mm horizontally; clamped every 750 mm vertically or at clipping points.
• Single core cables clamped at intervals ≤750 mm horizontally, fixed to supports every 3000 mm; offset fixing points ~100 mm to create snake formation for thermal expansion.
• Clipping points: not more than 12 cables under one strap.
• Sun and dust shields required where exposed to direct sun, oil spills, or severe dust; shields must not obstruct airflow or reduce thermal rating; sun shields at angles ≥35° from vertical, ≥75% coverage if slotted.
• Sleeve pipes for cables under roads/railways: specific diameters and arrangements per Table 7.
• Cable chases: fill with sand and screed; avoid in oil spillage areas.
• Cable laying in ground: minimum depths and spacing per Table 9; protect with concrete slabs or yellow plastic cover plates and marker tapes.
• Minimum bending radii per Table 8 (e.g., LV unarmoured single core 15xD, MV armoured multi-core 18xD).
• Jumper wires up to 4 mm² with ferrules and lugs; crimping tools to be approved.

• ISO 9001 Quality Management Systems is referenced.
• Cable cleats, straps, and saddles must comply with SANS 61914 for resistance to electromechanical forces, UV, corrosion, and flame.
• Specific torque values and tolerances (±10%) for bolt connections must be witnessed during erection per quality check sheet.
• Type tests, sample tests, routine tests, and site tests are required for cables.
• Cable rating information must include: installation conditions (air, ducts), short-circuit ratings, cable mass (kg/m), gross mass per drum, 50 Hz a.c. resistance at max conductor temperature, reactance per phase, capacitance per phase, zero sequence impedance and capacitance.

• Fault current ratings specified for cable sizing:

• 11 kV (specific boards): 40 kA
• 11 kV (general): 31.5 kA
• 6.6 kV: 25 kA
• 400 V: 50 kA
• 660 V: 50 kA
• 220 V dc: 10 kA
• 24 V dc: 25 kA

• Cable cross-sectional areas under circuit breakers must withstand three-phase or DC through fault for total protection operating time; if instantaneous overcurrent protection, cable sized for full load continuously or short circuit for 0.2 seconds, whichever larger.
• Voltage regulation limits:

• 1.5% for critical drives (standby jacking oil pumps, turbine barring gear) during start-up/shut-down.
• 3% for all drives and consumers operating continuously under normal conditions, including redundancy applications.

• No pricing format, bonds, guarantees, or payment terms stated in this technical standard.

• Mandatory compliance with Occupational Health and Safety Act (OHS Act) and all amendments/regulations.
• Must comply with SANS 10142-1, SANS 1507, SANS 1339, and SANS 10198-1.
• All cables offered must carry valid product type tests per relevant SANS standards; SANAS accredited product certification body mark scheme applies where applicable for locally type-tested cables.
• References include Generation Plant Safety Regulations (240-150642762) and SANS 10198-7 (Safety precautions).
• No specific B-BBEE, tax, CIDB, CSD, or CIPC requirements stated in this document.

• Compliance with the Occupational Health and Safety Act (OHS Act) and all amendments/regulations is mandatory.
• References include Generation Plant Safety Regulations (240-150642762) and SANS 10198-7 (Safety precautions).
• Fire performance requirements for cables are specified based on installation type (open racks, covered trays, buried, etc.).
• Reduction of fire hazards along racking routes is required, including fire detection in large concealed areas.
• Safety precautions for cable laying from heights (braking, pulling forces) are outlined.
• Cables in trefoil configuration must be clamped with non-magnetic cable cleats and intermediate restraints capable of withstanding short circuit forces.

• This document is a technical standard; specific contractual terms (duration, termination, penalties) are not included.
• It defines technical requirements for cables, installation, and testing that would form part of a contract's specifications.

• Normative references include ISO 9001, Eskom standards (safety, earthing, fire protection, labelling, engineering drawing), SANS standards for cables (SANS 97, 1339, 1507, 1574, 1411, 10142-1, 10198 series, 876, 1803, 1019, 1213, 808, 61238-1, 61914).
• Definitions: cable cleat, routine test, sample test, type test, U, U0, Umax.
• Roles: Generation Asset Management is custodian; power stations ensure acquisition per this standard; used with technical specification.
• All cable offered must carry valid product type tests per relevant SANS standards; SANAS accredited product certification body mark scheme where applicable.
• Cable identification per Eskom standard cable codes (drawings 0.00/1310 and 0.00/2713).

• ISO 9001 Quality Management Systems is listed as a normative reference.
• All cables must carry valid product type tests per relevant SANS standards; type test reports and tender returnables must be submitted at tender enquiry.
• No other evaluation criteria (scoring, thresholds, preference points) are stated in this technical standard.

• This document outlines Eskom's Life-Saving Rules, a set of safety standards to enforce zero tolerance for at-risk behaviours.
• The rules are designed to prevent serious injuries and fatalities and apply to all Eskom employees, agents, consultants, and contractors at all Eskom sites.
• The standard clarifies the six most prominent causes of serious incidents within Eskom.

• Closing date: 13 February 2025.

• To be eligible to work on Eskom sites, a contractor must formally integrate the Life-Saving Rules into their site safety management system.
• A documented process for training all site personnel on these rules and obtaining signed acknowledgements is required.
• A compliant disciplinary process to address violations within 5 working days is required.
• All operational procedures must align with the extensive referenced normative documents (e.g., Plant Safety Regulations, High Voltage Operating Regulations, Working at Heights Standard).
• The tender evaluation will consider adherence to ISO 9001 Quality Management Systems.
• The Safety, Health, Environment and Quality Policy (document 32-727) will be a reference point.

• The work must comply with Eskom's Life-Saving Rules, which apply to all contractors.
• The six Life-Saving Rules are:

1. OPEN, ISOLATE, TEST, EARTH AND CREATE AN EQUIPOTENTIAL ZONE BEFORE TOUCH: No electrical work may be performed unless the worker is trained, authorised, has a valid permit, conducts a pre-task risk assessment, follows specific safety procedures, works within an equipotential zone (for medium/high voltage), and wears appropriate PPE.
2. HOOK UP AT HEIGHT: No work at height may be performed unless a Fall Protection Plan is developed, the worker is medically fit and trained, a specific risk assessment is conducted, and an Eskom-approved fall arrest system is used.
3. BUCKLE UP: Seat belts are mandatory for all vehicle occupants at all times on Eskom business.
4. BE SOBER: No person under the influence of alcohol or drugs is permitted on site or to conduct Eskom business.
5. ENSURE THAT YOU HAVE A PERMIT TO WORK: A valid Permit to Work (PTW) is required, governed by Plant Safety Regulations, Operating Regulations for High Voltage Systems, Low Voltage Operating Regulations, or other applicable permit systems.
6. ENSURE SAFE LIVE WORKING: Live workers must adhere to basic principles, maintain minimum approach distances, only perform live work (no mixing with dead work), and only perform authorised tasks documented in the respective Task Manual.

• Contractors must ensure all employees are trained, competent, and authorised for tasks.
• Violation of Life-Saving Rules is treated as serious misconduct with zero tolerance, leading to disciplinary action and potential suspension of contractor activities.
• Compliance with the Life-Saving Rules standard will be monitored through annual audit and inspection plans.
• For live work, the contractor's methodology must ensure all basic live work principles are adhered to as per the relevant High Voltage Live Working Standard.
• Workers must observe and maintain the minimum approach distance (MAD).
• Live work and dead work must not be mixed on the same site at the same time.

• Contractors must comply with the Occupational Health and Safety Act.
• Contractors must adhere to Eskom's Contractor Health and Safety Requirements (document 32-136).
• Compliance with ISO 45001 Occupational Health and Safety Management Systems is referenced.
• Contractors are defined broadly and include all entities performing work for Eskom.
• Contractors must fully comply with Eskom's Life-Saving Rules and all referenced health and safety documents, including the Occupational Health and Safety Act, ISO 45001, and specific Eskom procedures for contractor safety, working at heights, substance abuse, incident management, and personal protective equipment.
• A contractor is defined as any employer formally contracted by Eskom to perform work or supply services, products, or equipment.
• Violation of a Life-Saving Rule will result in a disciplinary process. Eskom has a zero-tolerance stance and may suspend a contractor's activities. The contractor must remove the violating employee from site and initiate disciplinary proceedings within five working days.

• This document is Eskom's Life-Saving Rules standard (identifier 240-62196227, revision 7).
• It applies to all Eskom employees, agents, consultants, and contractors at all Eskom sites.
• The purpose is to enforce zero tolerance for at-risk behaviours that could cause serious injury or fatality.
• The six Life-Saving Rules are: 1) Open, isolate, test, earth and create an equipotential zone before touch; 2) Hook up at height; 3) Buckle up; 4) Be sober; 5) Ensure that you have a permit to work; 6) Ensure safe live working.
• Violation of any rule is treated as serious misconduct, leading to disciplinary action. Eskom may suspend contractor activities if a manager/supervisor allows a violation.
• Contractors must remove violating employees from site and initiate disciplinary proceedings within five working days, and furnish Eskom with a copy of the sanction.
• The standard references numerous normative documents including the OHS Act, ISO 9001, ISO 45001, and various Eskom procedures for safety, working at heights, substance abuse, incident management, and PPE.
• Groups/Divisions must implement the rules, communicate them, ensure signed acknowledgements, and investigate violations within five working days.
• Employees and contractors must always observe the rules, ensure training and authorisation, avoid shortcuts, and exercise the right to refuse unsafe work.
• Compliance is monitored through annual audit and inspection plans.

14 April 2026

Returnable Documents: Not specified in the provided text.

Bidders must be registered with relevant industry bodies (CIDB grading likely required). Must demonstrate previous experience with MV switchgear projects. Must have valid tax clearance certificate. Must comply with ESKOM's vendor registration requirements.

The tenderer must provide their name and tender reference number on the returnable document. The scope of work is the provision of outside plant MV switchgear upgrade at Arnot Power Station for a period of 3 years.

Returnable Documents: The tenderer must submit the following OHS tender returnables:

• Annexure B: Signed acknowledgement of Eskom's OHS legal and other requirements.
• Health and Safety Plan: Must address project/scope of work OHS risks and align with health and safety specifications.
• Detailed costing for OHS management: Must be broken down, not a lump sum, based on overall scope and risk assessment.
• Baseline OHS Risk Assessment (BRA): Must include methodology for identifying, assessing, and managing OHS risks.
• Valid Letter of Good Standing (COIDA or equivalent).
• OHS policy signed by CEO, complying with OHS Act Section 7.
• OHS Competency: CVs, qualifications, and certificates as required for the scope.

Submission notes:

• The tenderer's name and tender reference number must be provided on the returnable.
• The scope of work must be clearly stated.
• For explanatory notes on OHS requirements, refer to 240 - 77433139 Annexure A: Supplier Risk Category.

Mandatory eligibility is contingent on the complete and compliant submission of all listed OHS returnables (items 1-7). Failure to submit any required document, or submission in a non-compliant format (e.g., lump-sum OHS costing), will likely result in disqualification or a 'Not Recommended' evaluation. The tenderer must operate under a valid COIDA registration or equivalent.

No specific requirements found

This document is a technical standard specifying requirements for new air-insulated withdrawable AC metal-enclosed switchgear and controlgear.

• Rated voltages: above 1kV up to and including 52kV for indoor installations in Eskom Generation power plants.
• Excludes: Special environmental conditions (e.g., nuclear, high temperature/pressure, earthquakes), Ring Main Units (RMUs), generator circuit-breakers rated 100 MVA and above, and pumped storage applications.
• Includes: Requirements for generator circuit-breakers rated 10 MVA to 100 MVA.
• Purpose: To ensure standardisation; equipment must be type-tested, modular design with air-insulated busbars for three-phase 50Hz systems.
• Manufacturer must supply all necessary connections, wiring, steelwork, bolts, guards, labels, interfaces, documentation, and accessories for a complete functional assembly.
• Applicability: Eskom Generation Group.

Suppliers must demonstrate capability to meet extensive technical specifications.

• Eligibility is based on ability to provide equipment type-tested to referenced standards (SANS 62271 series, IEC standards, etc.) and specific Eskom Generation standard requirements.
• Submit relevant SANS/IEC type test reports during tender to validate equipment ratings against Eskom's system conditions.
• Equipment and manufacturing processes must comply with referenced quality standards (ISO 9001, ISO 17025).
• For internal arc proof design, applicable type test reports and videos must be submitted for Eskom tender evaluations.
• During design phase, simulation reports (by calculation or other means) must be submitted to declare safety of venting inside substation if applicable.
• All other components forming part of the functional unit must be tested in accordance with applicable standards to prove functionality.

This is a technical standard for new air-insulated withdrawable AC metal-enclosed switchgear and controlgear for Eskom Generation Group.

• Scope: Rated voltages above 1kV up to and including 52kV for indoor installations.
• Applies to Eskom Generation power plants.
• Excludes: Special environmental conditions (nuclear, high temperature/pressure, earthquakes), Ring Main Units (RMUs), generator circuit-breakers rated 100 MVA and above, and pumped storage installations.
• Includes requirements for generator circuit-breakers rated 10 MVA to 100 MVA.
• Equipment must be type-tested, modular design with air-insulated busbars for three-phase 50Hz systems.
• Manufacturer must supply all connections, wiring, steelwork, bolts, guards, labels, interfaces, documentation, and accessories for a complete functional assembly.
• Referenced standards include numerous Eskom internal standards, SANS standards (e.g., SANS 62271 series, SANS 61869, SANS 876, SANS 60529), IEC standards, ISO 17025, ISO 9001.
• Detailed requirements cover: panel ratings, switching device ratings, system characteristics, operating conditions, panel design and construction (service conditions, architecture, compartment segregation, service continuity, shutters, cooling, protection, fasteners, corrosion protection, labelling, busbars, spouts, insulation, wiring, power cable entry/termination, earthing, internal arc proof design), circuit-breakers, disconnectors, earthing devices, generator circuit-breakers, accessories (CTs, VTs, instruments, live indicators, wiring lugs, nameplates), interlocking systems, testing (type, routine, special), maintenance, training, documentation, packaging, spares.

Quality requirements are embedded in the technical standard.

• Referenced standards include ISO 17025 (General Requirements for the Competence of Testing and Calibration Laboratories) and ISO 9001 (Quality Management Systems).
• Detailed testing requirements (type tests, routine tests, special tests) must be performed by accredited laboratories.
• Manufacturing and component quality must align with the extensive referenced normative documents.

Safety is integral to the technical design requirements.

• Referenced standards include OHS Act, Generation Plant Safety Regulations (240-150642762), and Operating Regulations for High-Voltage Systems (240-114967625).
• Switchgear must be internal arc classified (AFLR) for 1 second.
• Design must ensure safety during various operating conditions, including faults, live working, and compartment access.
• Mandatory interlocks, padlocking facilities, warning labels, earthing, and touch potential safety are specified.
• Specific procedures are required for accessing compartments in accordance with safety regulations.

The standard explicitly excludes requirements for switchgear installation and use in special environmental conditions (e.g., exposure to high temperature, high pressure, earthquakes, nuclear applications). Such requirements are subject to additional project-specific specifications.

The standard defines detailed technical requirements for switchgear and controlgear, but does not contain explicit contractual terms, conditions, duration, termination, or penalties. It is a technical specification document.

The document lists extensive normative references (Eskom standards, SANS standards, IEC standards, ISO standards) that form the basis for all technical requirements.

• Key referenced areas include: operating regulations, corrosion protection, protection standards, safety regulations, labelling, drawing standards, training, and various national/international electrical and safety standards.
• Definitions and abbreviations are provided for specific terms used.
• Roles: Generation Asset Management is custodian; power stations must acquire new MV switchgear per this document; it is used with the technical specification.
• Supporting documents include templates for Technical A&B Schedule, Compliance Schedule, and MV Switchgear Schedules.

Suppliers must submit relevant type test reports and videos for Eskom tender evaluations.

• During design phase, applicable standards must be used to prove functionality.
• Referenced standards include ISO 17025 (competence of testing/calibration labs) and ISO 9001 (quality management systems).

This is a technical standard document outlining the minimum protection requirements for medium voltage (MV) and low voltage (LV) plant at Eskom power stations.

• Purpose: To be used as a standard when purchasing new protection schemes.
• Scope: Presents principles for electrical protection of MV and LV equipment, describing general tripping principles, protective relay functions, and associated equipment aspects.
• Applicability: Applies throughout Eskom Holdings Limited Divisions.
• The document includes extensive definitions, abbreviations, and detailed technical requirements for protection functions, tripping, settings, instrument transformers, DC supplies, grading, technologies, and specific protection applications (switchgear, cables, transformers, motors).
• Note: A memorandum indicates that MV protection portions have been superseded by a newer standard.

Phone: 016 457 5295 (Johann Jordaan, PTM – Technical Support)

Eligibility is determined by technical capability rather than explicit commercial criteria in this document. Suppliers must demonstrate proven expertise in high-voltage electrical engineering, specifically in MV switchgear protection systems compliant with Eskom's stringent and proprietary standards. Experience working on Eskom Generation power stations is highly advantageous. Suppliers must be able to access and apply the latest controlled Eskom standards.

This is a technical standard document, not a tender specification. It outlines minimum protection requirements for MV and LV plant at Eskom power stations and is intended as a standard when purchasing new protection schemes.

• Scope: Describes principles for electrical protection of MV and LV equipment in power stations, including tripping principles, protective relay functions, and associated equipment.
• Applicability: Applies throughout Eskom Holdings Limited Divisions.
• Key technical requirements:
• Protection must safeguard personnel and primary plant against faults and abnormal conditions.
• Main protection (e.g., differential, instantaneous overcurrent) must be instantaneous (<20ms) for critical/high fault level plant.
• Back-up protection (e.g., IDMT overcurrent/earth fault) is required on all plant.
• MV switchgear circuit breakers must be withdrawable type.
• LV switchgear breakers must be MCCBs or MCBs; no fuses on AC systems.
• All voltage functions must measure three phases and have fuse fail protection.
• All circuits require DC fail and trip circuit supervision.
• Equipment must be compatible with IEC 61850 and have GPS/time sync capability.
• Relay integration and configuration must be done by the contractor in conjunction with Eskom.
• Detailed specifications are provided for instrument transformers, auxiliary DC supplies, grading, protection technologies, and specific protection for switchgear, cables, transformers, motors, and earthing resistors.
• Note: A memorandum states that MV protection requirements in this standard have been superseded by a new standard (240-143485806). Specific excluded sections include Transformer Differential (for transformers >5MVA), MV Motor Protection, and Earthing Resistor Protection.

No specific compliance requirements (like CSD, tax, CIDB) are stated in the document. B-BBEE: A minimum Level 3 is noted, but this appears to be a placeholder or external note, not extracted from the standard itself.

The document is a technical standard focused on electrical protection, not a health and safety plan. However, it includes requirements that contribute to personnel and plant safety:

• Protection must be provided to protect personnel and primary plant against damage due to faults or abnormal conditions.
• Specific safety-related protection functions include arc detection protection for flashovers in switchgear compartments.
• Earthing requirements (resistance or solid) are specified to stabilise arcing earth faults and minimise damage.
• Temperature monitoring and protection (e.g., for transformer oil/winding, resistor oil) are required to prevent overheating.
• The standard ensures electrical systems are designed to isolate faults quickly, reducing risk to personnel and equipment.

• The tenderer must complete and sign the form to acknowledge and accept Eskom Supplier Quality Requirements as per 240-105658000 Specification and ISO 9001 Standard.
• The tender is for the provision of Outside Plant MV Switchgear Upgrade at Arnot Power Station for a period of 3 years.

Returnable Documents: The tenderer must complete and sign the form to acknowledge and accept Eskom Supplier Quality Requirements as per 240-105658000 Specification and ISO 9001 Standard.

• The project replaces obsolete and unsafe outside plant MV switchgear at Arnot Power Station to improve safety and reliability.
• The scope covers design, supply, installation, testing, commissioning, and handover of new MV switchgear, battery chargers, control cabling, structures, and HVAC systems.
• The document includes technical schedules, single line diagrams, equipment lists, protection schemes, and cable routing details.

• The project involves replacement of outside plant MV switchgear at Arnot Power Station for improved safety, reliability, and maintainability.
• The scope includes decommissioning and removal of existing MV switchgear, battery chargers, extraction fans, and associated cabling.
• Installation of new MV switchgear complying with Eskom standards: 240-56227573 (air-insulated withdrawable switchgear), 240-56030406 (ring main units), and 240-143485806 (protection standards).
• New switchgear must be fitted with latest technology protection schemes (IED relays or self-powered relays) as per equipment schedule.
• Replacement and testing of power cables as per Eskom standard 240-56227443.
• Provision of support structures, HVAC upgrades in switchgear rooms, and interface with existing control systems (C&I).
• Cable works include routing, replacement, testing, termination, and compliance with SANS standards for cable types (e.g., PILCSWA, PVC/SWA/PVC, XLPE).
• Detailed switchgear schedules specify technical requirements for multiple boards (e.g., 11kV Station Boards, Coal Conveyor Boards, ASQ Boards, Sewage Plant Board) including ratings for voltage, current, fault current, impulse withstand, etc.
• The contractor must update as-built drawings, including single line diagrams, cable schedules, substation layouts, and schematic diagrams.

• The design must ensure standardization for operation, maintenance, and lifecycle cost reduction.
• All components and materials must be new.
• Equipment must function under ambient environmental conditions at the plant.
• Safety requirements include: no mounting on removable walkways, shielding of live parts, and lockable enclosures with padlock provision.
• The contractor must employ a uniform design approach across works for compatibility and interoperability.
• Maintenance plans with intervals and work instructions must be documented.
• Use of readily replaceable components to minimise outage times.
• Compliance with Eskom standards referenced in the technical specification is mandatory.

• Evaluation will assess compliance with engineering requirements, quality control, supply, installation, training, testing, commissioning, and handover.
• Bidders must adhere to Eskom design guidelines, including HVAC (240-70164623) and thermal insulation standards (240-56247004).

• Completion date for the whole of the works: 31 December 2030.
• Key dates: Detail Design due 30 January 2027; Design Approval due 30 March 2027.
• Defects date: 52 weeks after completion of the whole works.
• Access dates: To be specified per part of the site.
• Contractor must submit first programme for acceptance within 2 weeks of the Contract Date.
• Contractor submits revised programmes at intervals no longer than 4 weeks.
• Assessment interval for payments: between the 25th day of each successive month.
• Payment period: 4 weeks from assessment.

• Project Manager: Donald Mabena, email [email protected], address Private Bag X2, Rietkuil, 1097.
• Supervisor: Lesego Kehimile, address Private X2, Rietkuil, 1097.
• Employer: Eskom Holdings SOC Ltd, registered office Megawatt Park, Maxwell Drive, Sandton, Johannesburg.
• Adjudicator: To be selected from ICE-SA Division panel (www.ice-sa.org.za) or appointed by AFSA if parties cannot agree.

• Submit the completed Form of Offer and Acceptance (C1.1) with all required signatures.
• Include the Schedule of Deviations if any deviations from the tender documents are agreed.
• Provide the tenderer's CIDB registration number (if applicable) on the Offer form.
• The Employer will return one copy of the signed Form of Offer and Acceptance, including the Schedule of Deviations, to the tenderer before the end of the validity period.
• Failure to provide required securities, bonds, guarantees, proof of insurance, or other documentation within two weeks of receiving the signed agreement may constitute repudiation.

• Tenderer must complete Contract Data Part Two, including Contractor name, address, contact details, key persons, fee percentages, activity schedule, and tendered total of Prices.
• Guidance notes available from Engineering Contract Strategies (tel 011 803 3008, www.ecs.co.za).
• Tender schedule must include CVs for key persons.

• Contractor must complete Part 2 of Contract Data (to be provided at tender stage).
• Must have relevant experience in MV switchgear upgrades.
• Must comply with South African law.
• CIDB registration may be required (if applicable).
• Must not have conflicts of interest or engage in prohibited actions (corruption, fraud, etc.).
• Joint ventures must declare structure and accept joint liability.
• Must maintain B-BBEE status throughout contract period.

• Scope: Outside Plant MV Switchgear Upgrade at Arnot Power Station, including supply, installation, testing, and commissioning of 11kV switchgear and associated systems.
• Key components: 11kV Station Boards 1 and 2, 11kV Conveyor Boards 1-9, Ring Main Units (RMUs), protection relays, CTs, VTs, SCADA interfaces, and DC chargers.
• Works include decommissioning and removal of existing switchgear and chargers, design, local protection and automation devices, cable joints, terminations, construction, erection, and commissioning.
• Site establishment includes provision of containers (kitchen, storage, ablution), safety files, medicals, police clearances, PPE, and travel.
• Works Information is contained in Part C3: Scope of Work and referenced drawings.

• Contractor must provide details of key persons, including names, jobs, responsibilities, qualifications, and experience.
• CVs for key persons must be appended to the tender schedule.
• Contractor must specify direct and subcontracted fee percentages.
• Activity schedule must be prepared by Contractor, breaking down work into priced lump-sum activities linked to programme.

• Defects date is 52 weeks after completion; defect correction period is 1 week.
• Works must be without defects that would delay or be covered by immediately following work for payment.
• Quality assurance includes testing and commissioning of all supplied switchgear, protection systems, and SCADA interfaces.
• Contractor must ensure all works comply with Works Information and referenced standards.

• Pricing based on NEC3 Option A: lump sum prices for each activity in the activity schedule.
• Activity schedule includes preliminaries (site establishment, de-establishment, safety files, medicals, PPE, travel) and detailed items for switchgear supply, installation, testing, and commissioning.
• Example items: 11kV Station Board 1 includes supply of 15 panels, chargers, decommissioning, design, protection devices, SCADA, cable joints, terminations, construction, and commissioning.
• Prices must be exclusive of VAT; VAT at 15% added to total.
• Price adjustment for inflation using SEIFSA indices for labour, transport, and electrical components.

• Contract uses NEC3 Option A: Priced contract with activity schedule. Payment is based on completed activities only.
• Prices are lump sums for each activity; no part payment for incomplete activities.
• Currency: South African Rand.
• Payment terms: Assessment interval between the 25th of each month; payment within 4 weeks.
• Interest rate: Standard Bank prime rate for ZAR amounts, LIBOR for other currencies.
• Retention: 5% retention percentage; retention free amount to be specified.
• Price adjustment for inflation applies using SEIFSA indices (Labour 50%, Transport 5%, Electrical 30%, Non-adjustable 15%).
• Tax invoices must be submitted within one week of payment certificate, including Eskom VAT number 4740101508.

• B-BBEE: Contractor must notify Eskom within 7 days of any change in B-BBEE status and submit updated verification certificate within 30 days. Decrease in status may lead to re-negotiation or termination.
• CIDB registration number must be provided if applicable.
• Joint ventures are jointly and severally liable; composition changes require Employer consent.
• Compliance with all applicable health, safety, and environmental laws, including Construction Regulations 2014 and Asbestos Regulations.
• Insurance required as per Insurance Tables A and B, covering works, liability, and employer's risks.
• Confidentiality obligations apply; no disclosure of contract information without consent.
• Ethics clause prohibits corrupt, fraudulent, coercive, collusive, or obstructive actions.

• Contractor must take all reasonable precautions for health and safety on site.
• Eskom may appoint Contractor as Principal Contractor under Construction Regulations 2014.
• Contractor warrants prices include sufficient amount for compliance with health and safety laws and regulations.
• Asbestos management: Eskom ensures ambient air meets asbestos regulations; Contractor may perform parallel measurements at own cost.
• If asbestos is identified, risk assessment and control measures required; personnel may stop work until area declared safe.
• Safety requirements include safety file establishment, annual medicals, police clearances, and provision of SANS-standard PPE (flame retardant clothing, hard hats, eye protection, safety boots, ear muffs, gloves).

• Contractor must comply with all applicable environmental laws, regulations, and contract guidelines.
• Asbestos removal and disposal must be done by a registered asbestos contractor at Eskom's expense, in line with South African legislation.
• Weather data from Witbank station used for compensation events; compensation may be notified if recorded weather exceeds one-in-ten-year return values.

• Contract based on NEC3 Engineering and Construction Contract April 2013, Option A (Priced contract with activity schedule).
• Dispute resolution Option W1; secondary options include price adjustment for inflation, changes in law, sectional completion, limitation of liability, retention, and key performance indicators.
• Additional conditions (Z clauses) cover cession, joint ventures, B-BBEE status changes, confidentiality, health and safety, environmental compliance, tax invoices, compensation events, ethics, insurance, nuclear liability, and asbestos management.
• Retention percentage is 5%; retention free amount to be specified.
• Liability limitations: Contractor's liability for indirect/consequential loss limited to R0; total liability limited to total of Prices except for excluded matters.
• Defects correction period: 1 week.
• Contract law: Republic of South Africa; language: English.

The tender is for the provision of Outside Plant MV Switchgear Upgrade at Arnot Power Station for a 3-year period. A critical component is compliance with Eskom's OHS legal and other requirements, as detailed in Annexure B (Acknowledgement Form).

The document indicates that bidders will be evaluated on the following aspects:

• Experience in similar MV switchgear upgrade projects.
• Ability to manage subcontractors effectively.
• Proven OHS compliance track record.
• Resources to execute a 3-year contract.
• Willingness to align company processes with Eskom's OHS requirements post-award.

The tender requires compliance with Eskom's Occupational Health and Safety (OHS) legal and other requirements. Key points include:

• Compliance with Eskom Contractor Health and Safety Requirements Standard 32-136, OHS specifications, Occupational Health and Safety Act 85 of 1993, and Compensation for Occupational Diseases and Illnesses Act 130 of 1993.
• Post-award, the supplier must align company processes with Eskom's OHS policies, procedures, and standards.
• Penalties apply for non-conformance with Eskom or statutory OHS requirements by the main supplier, contractors, or sub-suppliers.
• All employees (including contractors/suppliers) must undergo Eskom and company-specific inductions.
• The main contractor/supplier must:
• Demonstrate the process and selection criteria applied when appointing contractors and suppliers.
• Provide notification to Eskom prior to the appointment of contractors or suppliers for commencement of work.
• Ensure that contractors/suppliers have adequate resources and competencies.
• Manage contractors/suppliers to ensure compliance with applicable legal and Eskom requirements.
• Monitor contractors/suppliers through audits and assessments for OHS compliance during execution.
• Provide grounds for termination of work done by contractors/suppliers.
• Non-compliance by contractors/suppliers (all tiers) is the main supplier's responsibility, including performance and penalty processes.
• Eskom reserves the right to verify compliance and may request testimonials/references and contact details of clients (including Eskom) for similar past work.

Compliance with Eskom's OHS legal requirements is mandatory. This includes adherence to:

• Eskom Contractor Health and Safety Requirements Standard 32-136
• Occupational Health and Safety Act 85 of 1993
• Compensation for Occupational Diseases and Illnesses Act 130 of 1993
• Additional OHS specifications provided by Eskom.
• After contract award, the supplier must fully align company processes to Eskom's OHS requirements (policies, procedures, standards).

• Closing date: 21 August 2026 at 10h00.
• Clarification meeting: 30 July 2026 from 10h00 to 12h00 at Arnot Power Station.

• Clarification meeting: 30 July 2026 from 10h00 to 12h00 at Arnot Power Station.

• CIDB contractor grading of 8EP or 8ME or higher is required.
• Joint ventures are eligible if:
• Every JV member is registered with the CIDB.
• The lead partner has a grading of 8EP or 8ME, or not lower than one level below the required grading, and possesses the required recognition status.
• The combined grading of the JV, calculated per CIDB regulations, equals or exceeds 8EP or 8ME.

• CIDB contractor grading of 8EP or 8ME or higher is required.
• Joint ventures (JVs) are eligible if:
• Every JV member is registered with the CIDB.
• The lead partner has a CIDB grading of 8EP or 8ME (or not lower than one level below the required grading) and possesses the required recognition status.
• The combined CIDB grading of the JV meets or exceeds 8EP or 8ME, as calculated per CIDB regulations or Regulations 25(1B) or 25(7A).

• CIDB contractor grading of 8EP or 8ME or higher is required.
• Joint ventures (JVs) are eligible if:
• Every JV member is registered with the CIDB.
• The lead partner has a CIDB grading of 8EP or 8ME (or not lower than one level below the required grading) and possesses the required recognition status.
• The combined CIDB grading of the JV meets or exceeds 8EP or 8ME, as calculated per CIDB regulations or Regulations 25(1B) or 25(7A).

• Contact person: Phomello Thobejane.
• Email: [email protected].
• Phone: +27 13 297 9684.

This document is an Eskom Generation standard for Medium Voltage Protection of auxiliary plant. It provides:

• An overview of Eskom's extensive electrical reticulation system within power stations, covering both inside the power house and outside plant (common plant) areas.
• The purpose is to guide protection engineering practitioners, outlining protection philosophies and serving as a reference for new MV protection schemes on refurbished or new plants.
• It standardises best practices and specific Eskom requirements but allows for fit-for-purpose designs, requiring rigorous review before use in tender specifications.
• The scope is limited to MV protection for power system elements connected to MV sources, excluding generating unit protection, low voltage protection, and communication requirements for substation automation.
• Key definitions and abbreviations are provided for terms like back-up protection, clean/dirty DC supplies, critical plant, and various technical acronyms (IED, CT, VT, etc.).
• Roles and responsibilities are assigned to the Generation Electrical Plant CoE, protection engineering practitioners, and setting practitioners for compliance and application.

While not explicitly stated in this standard, eligibility for the related tender would implicitly require:

• Proven expertise in Eskom's MV protection philosophy and standards.
• Ability to supply and configure IEDs from Eskom's approved list (ref. 240-56227589).
• Engineering personnel qualified to perform protection setting calculations per this guide.
• Compliance with all normative references (e.g., IEC 61800-4, Eskom engineering procedures).
• Capability to execute work under 'Controlled Disclosure' classification.

This document is a technical standard for Medium Voltage Protection in Eskom Generation power stations. It outlines the protection philosophy, requirements, and design principles for electrical protection systems on medium voltage (MV) reticulation. Key points for bidders:

• Scope covers MV protection for power system elements inside the power house and common plant (outside plant) circuits, but excludes generating unit protection and low voltage protection.
• Serves as a reference and guide for new MV protection schemes on refurbished or new plants, providing recommended setting values.
• Applies throughout Eskom Generation and accommodates different primary plant layouts and protection approaches.
• Protection philosophy requires each electrical fault to be detected by a main and at least one back-up protection function, powered from two different DC supplies.
• Protection must operate for primary faults but may be blocked for secondary faults (e.g., CT/VT failures) if supervision functions unambiguously detect them, with alarms triggered.
• General requirements cover control circuit design (fuse or MCB-based), redundancy (protection functions, trip coils, DC supplies), CT/VT specifications, DC supply standards (clean/dirty), and extensive interfacing with switchgear, unit control (DCS/BPS), and station control.
• References numerous Eskom standards and procedures (e.g., ISO 9001, engineering change management, drawing standards) that must be complied with.
• Protection IEDs and auxiliary relays must be from Eskom's approved list (240-56227589).
• The standard details specific protection schemes for busbar, arc, MV incomer, bus section, motor, transformer, cable, diesel generator, earthing resistor, and shunt capacitor bank applications.
• Setting principles for DMT/IDMT over current, earth fault, and other functions are provided.
• Wiring and drawing requirements are standardised.

The document outlines the methodology for MV protection design and implementation:

• Protection philosophy requires each fault to have main and back-up detection, with protection powered from two different DC supplies.
• Supervision functions may block protection for secondary faults, with alarms triggered.
• Control circuit design follows two approaches: fuse-based or MCB-based, each with specific grading and monitoring requirements.
• Redundancy is applied to protection functions, trip coils, and DC supplies, with selector switches for DC source selection.
• Interfacing with switchgear, unit control (DCS/BPS), and station control is standardised, including binary inputs/outputs and alarm groupings.
• The methodology allows for fit-for-purpose designs but requires rigorous review.

The document specifies requirements for supervision and testing to ensure protection quality and reliability:

• Voltage and current transformer supervision functions may be used to block protection functions (e.g., current differential) for secondary faults (e.g., momentarily open CT circuits), provided back-up protection is not blocked and alarms are triggered.
• Approved test blocks must be used for secondary injection testing of IEDs without disconnecting wires; they must short-circuit CT inputs and disconnect VT quantities safely.
• Test blocks with additional contacts should isolate trip circuits when a test handle is inserted to prevent unintended tripping during testing.
• For breakers tested in any position, a breaker fail contact must be wired in series with a test block contact to prevent trip testing from initiating breaker fail trips to upstream circuits.
• De-energise-to-trip (no-volt) coils for signals like boiler protection trips must be monitored with approved relays that have a mechanical cam to simulate an energised state for testing when BPS is unavailable.
• Personnel must isolate unwanted remote tripping during testing and reinstate afterwards, with remote testing conducted to ensure no inadvertent isolations block remote operation.

The document references several normative standards and procedures that must be applied. Bidders must ensure compliance with:

• ISO 9001 Quality Management Systems.
• Eskom engineering procedures: Engineering Change Management (240-53114002), Project Engineering Change Management (240-53114026), Design Review (240-53113685), Registration for Engineering Work (240-49104739), Manage Engineering Accountability (240-53113953).
• Eskom Documentation Management Standard (32-644).
• Eskom standards for MV AC Variable Frequency Drives (240-50237146), Engineering Drawing (240-86973501), MV & LV Switchgear terminations and wiring (0.00/10341).
• International standard IEC 61800-4 for adjustable speed electrical power drive systems.
• Protection IEDs and auxiliary relays must be from Eskom's approved list (240-56227589 - List of Approved Electronic Devices).
• Note: No specific B-BBEE, tax, CIDB, or other typical tender compliance requirements are stated in the extracted content.

The document includes safety-related requirements for protection and control systems:

• Tripping and closing principles, safety tripping (especially for coal-fired plants), and BPS tripping interfaces are detailed.
• Interlocking principles prevent incorrect switching, with provisions for manual override under emergency conditions.
• Setting principles for various protection functions (e.g., DMT/IDMT over current, earth fault protection) ensure safe operation.
• Wiring and drawing requirements standardise installations.
• The protection philosophy emphasises preventing damage to plant and ensuring safe fault clearance.
• Redundancy requirements (e.g., dual DC supplies, trip coils) enhance dependability and safety.
• Interfaces with unit control (DCS/BPS) and station control include fail-safe mechanisms and alarm groupings to prevent unsafe operations.
• Breaker fail protection must trip all sources of supply and includes isolation features.
• The document stresses that regulatory and safety requirements cannot be ignored in designs.

The document references normative standards and procedures that form part of the contractual framework. Bidders must apply:

• ISO 9001 Quality Management Systems.
• Eskom procedures for Engineering Change Management (240-53114002), Project Engineering Change Management (240-53114026), Design Review (240-53113685), Registration for Engineering Work (240-49104739), and Manage Engineering Accountability (240-53113953).
• Eskom Documentation Management Standard (32-644).
• Eskom standards for MV AC Variable Frequency Drives (240-50237146) and Engineering Drawing (240-86973501).
• Eskom standard for MV & LV Switchgear terminations and wiring (0.00/10341).
• International standard IEC 61800-4 for adjustable speed electrical power drive systems.

• Closing date and time: 21 August 2026 at 10h00.
• Clarification meeting/site visit: 30 July 2026 at 10h00 at Arnot Power Station. Non-compulsory but advised. Confirm attendance with Eskom Representative and bring full PPE if site visit required.
• Deadline for clarification queries: 5 working days before tender submission deadline.
• Tender validity period: 12 weeks from closing date.

• Clarification meeting/site visit: 30 July 2026 at 10:00 at Arnot Power Station. Non-compulsory but advised. Confirm attendance with Eskom Representative and bring full PPE if site visit required.

• Eskom Representative: Phomello Thobejane. Telephone: 013 297 9684. Email: [email protected].
• All queries and clarifications must be addressed in writing to the Eskom Representative only.
• Fraud and corruption reporting: 0800 11 2722 / [email protected].

• Submit electronically via Eskom E-tendering site before the closing date and time (21 August 2026 at 10h00). The submission status must be indicated as complete.
• Upload documents in PDF format. The price list must be submitted in both PDF and Excel format.
• Maximum upload size per document is 500 MB; total submission restricted to 4 GB. No ZIP/compressed files. No hard copies accepted.
• If resubmitting, only the latest version will be accepted; previous submissions become null and void.
• Mandatory returnables required at tender closing (disqualifiable if missing): Authorization Form (Annexure A), Acknowledgement Form (Annexure B), Tenderer’s Particulars (Annexure C), Integrity Pact Declaration (Annexure D), CPA for local/imported goods (Annexures E/F), SBD 6.2 for local content (Annexures G1-G4), SBD 1 (Annexure H), SBD 4 (Annexure J), and E-tendering Help Manual acknowledgement form.
• Non-disqualifiable returnables: SBD 6.1 Preference Points Claim Form (Annexure I). If incomplete, you may be given 5 working days to correct.
• For joint ventures: submit a letter of intent or valid JV agreement, confirmation of single business entity, and details of a single designated bank account.
• Ensure all items on the price list are priced; failure to price renders the tender non-responsive.
• Late tenders will not be accepted.

• Functionality (technical evaluation) is applicable with a threshold of 70%. Tenderers scoring below 70% will be disqualified. Criteria and weights are per the attached technical evaluation criteria.
• Price will be scored out of 90 points. Prices are evaluated inclusive of VAT, corrected for arithmetical errors, excluding contingencies, adjusted for variations, and compared on Net Present Value basis. Unconditional discounts are considered; conditional discounts are not considered for evaluation but applied at payment.
• Specific Goals (B-BBEE) will be scored out of 10 points under the 90/10 system. Points are awarded based on B-BBEE status level: Level 1 = 10, Level 2 = 9, Level 3 = 6, Level 4 = 5, Level 5 = 4, Level 6 = 3, Level 7 = 2, Level 8 = 1, Non-compliant = 0. Failure to submit evidence results in 0 points for that goal but not disqualification.
• Tenderers will be ranked by total score (price + specific goals). Eskom may award to a tenderer other than the highest scorer if objective criteria justify it.
• Objective criteria: Local content threshold for electrical and telecommunication cables is 90%.
• Contract Skills Development Goals (CSDG) are mandatory: 0.25% for mechanical engineering works and 0.25% for electrical engineering works. Failure to meet these renders the tender non-responsive.
• Contract Participation Goals (CPG) are applicable; at least 5% of contract value must be subcontracted to targeted enterprises.
• Eligibility criteria: Tenderer (or JV partners) must not be under any restriction to do business with Eskom or the state; not have nationality from a sanctioned country; not submit multiple tenders (except for system limits); JV must have joint and several liability; no conflicts of interest; not restricted by National Treasury, Eskom, or on Tender Defaulters list; must have required CIDB grading of 8EP or 8ME or higher (for JV, lead partner must meet grading and combined grading must equal or exceed).

• Provide evidence of experience in similar projects: client reference letters, contract awards, completion/commissioning certificates. Reference projects must have a minimum duration of five years since installation.
• List protection devices per Eskom standard 240-56227586 (approved electronic devices).

• Submit either valid ISO 9001 certification (with defined scope, approved authority, international accreditation, and valid expiry) OR documented QMS evidence including: QMS manual, quality policy, quality objectives, document control, control of nonconforming outputs, corrective action, and internal audit procedures.
• Provide evidence of QMS in operation: organization chart/responsibility matrix, criteria for external providers, latest internal audit report, latest certification audit report (not older than 12 months), and management review records.
• Submit draft Contract Quality Plan and Quality Control Plan/Inspection and Test Plan specific to the scope.

• Pricing schedule/BOQ is attached as a separate document. Submit completed schedule in PDF and Excel formats.
• Ensure all items are priced. Cataloguing line item required if applicable.
• No alternative tenders allowed.

• Pricing format: Submit pricing schedule/BOQ in PDF and Excel. Ensure all items are priced.
• Payment terms: For contracts below R50 million (incl. VAT), payment within 30 days of undisputed invoice. For contracts above R50 million (incl. VAT), payment within 60 days.
• Cataloguing: If required, include a line item for cataloguing in the pricing schedule; Eskom will pay for this.
• No alternative tenders allowed.
• Conditional discounts not considered in evaluation but implemented at payment.

• CIDB grading: Tenderers must have a CIDB contractor grading of 8EP or 8ME or higher. Joint ventures must have all members registered; lead partner must have at least 8EP/8ME grading.
• CSD registration is mandatory.
• B-BBEE: Submit proof of B-BBEE status level (certificate or sworn affidavit) for preference points scoring.
• Tax compliance: Local tenderers must provide SARS e-filing PIN for verification or tax clearance certificate. Foreign tenderers with South African footprint must submit tax clearance certificate; those without footprint complete SBD1 only.
• Employment Equity: South African designated employers must submit proof of compliance with Employment Equity Act.
• Safety: South African tenderers must submit COIDA certificate of good standing or proof of application.
• Environmental: Comply with all environmental legislation, Eskom SHEQ Policy, and station EMS (ISO 14001). Submit CEO/Director-signed commitment to environmental management.
• Contract Skills Development Goals (CSDG): Mandatory 0.25% for mechanical and electrical engineering works. Failure to meet renders tender non-responsive.
• Contract Participation Goals (CPG): Applicable; achieve at least 5% engagement of targeted enterprises.

• Comply with OHS Act and all applicable Eskom rules, procedures, and regulations.
• Submit Health and Safety Plan/OHS Manual specific to the site/activities.
• Provide OHS costing based on scope and risks, covering PPE, training, first aid, ablutions, safety signs, and campaigns.
• Submit valid COIDA certificate of good standing or proof of application (South African tenderers only).
• Provide signed OHS policy and proof of OHS competency for personnel.
• Safety requirements are for tender evaluation; upon contract award, comply with Arnot Power Station’s safety file requirements.

• Strictly comply with all environmental legislation including Section 24 of Constitution, NEMA, and other relevant laws.
• Adhere to Arnot Power Station’s Environmental Management System (ISO 14001:2015) and Eskom SHEQ Policy, Emergency Preparedness Procedure, Environmental Manual, and Waste Management Procedure.
• Submit CEO/Director-signed commitment to good environmental management practices and legislative compliance.

• Contract conditions: NEC 3 Engineering and Construction Contract with core clauses, main option A (priced contract with activity schedule), dispute resolution option W1, and secondary options X1, X2, X5, X7, X15, X16, X18, X20, and Z.
• Tender validity: 12 weeks from closing date.
• Eligibility restrictions: Tenderers must not be from countries on international sanctions lists, submit more than one tender (except on E-tendering with size limits), have conflicts of interest, be signed by unauthorized persons, restricted by National Treasury or Eskom, or subcontract 100% of the scope.
• Subcontracting with subsidiaries must be declared to avoid fronting allegations.

• Market research indicates an open tender process.

• Closing date: 21 August 2026 at 10:00.
• Project duration: 3 years.

• Business Unit: Arnot Power Station.
• Name of Buyer: Constance Ndhlovu.

• Tenderers must subcontract a minimum of 5% of the contract value to an EME or QSE which is at least 51% owned by black people living in rural or underdeveloped areas or townships.
• Submit mandatory subcontracting returnables: a signed subcontracting agreement with the subcontractor’s company registration documents (CK and B-BBEE certificate or sworn affidavit), OR copies of subcontracting contracts/agreements OR letters of intent to subcontract signed by the tenderer and earmarked subcontractor.
• Suppliers must submit quarterly SDL&I reports to Eskom.
• An SDL&I Implementation Schedule must be completed and returned to the SDL&I representative within 28 days after contract award.
• Failure to meet SDL&I obligations may invoke retention clauses and penalties.

All tenderers eligible, but scoring and award depend on B-BBEE status and price. Tenderers without valid B-BBEE docs can only score out of 80 for price (lose all 10 B-BBEE points). Non-compliance with CIDB CSDG or local content documentation (SBD 6.2, Annex C) renders tender non-responsive. Must meet designated sector local content threshold (90% for electrical cables).

• Scope: Outside Plant MV Switchgear Upgrade at Arnot Power Station.
• Project duration: 3 years.
• CIDB Construction Skills Development Goal (CSDG) applies: Suppliers must match Eskom’s targets of 0.25% for Mechanical Engineering Works and 0.25% for Electrical Engineering Works.
• Failure to meet the mandatory CIDB CSDG percentage will render the tender non-responsive.

• Tenderers may engage SETA-accredited training providers to participate in developing critical and scarce skills.
• Tenderers are responsible for the full cost of skills development for candidates (excluding Eskom employees and registered learners).
• Tenderers are advised to approach relevant SETAs for grants, subsidies, and incentives, and SARS for tax rebates earmarked for skills development.

• Tender responses must separate pricing into components as per the Price Schedule included in the tender documents.
• Local procurement content is calculated as total spending minus the imported component.

• Pricing must be separated into local and imported components as per the Price Schedule.
• Local procurement content is defined as total spending minus the imported component.
• Eskom will retain 2% of every invoice (excluding VAT) as security for SDL&I obligation fulfilment.

• B-BBEE: A valid B-BBEE certificate issued by a SANAS accredited verification agency, or a sworn affidavit/CIPS affidavit, is required to claim preference points. Eskom does not accept sworn affidavits with electronic signatures.
• Proof of ownership/shareholding (preferably CIPC documentation) including a shareholding breakdown must be provided.
• Certified ID copies of shareholders must be submitted.
• Proof of Disability must be provided where applicable.
• Local Content: For designated sectors (Electrical and Telecommunication cables), a 90% local content threshold must be achieved. SBD 6.2 Declaration Form and Annex C (Local Content Declaration-Summary Schedule) are mandatory returnables.
• CIDB: Mandatory CIDB compulsory training applies. Suppliers must match Eskom’s CSDG targets of 0.25% for Mechanical and Electrical Engineering Works.
• B-BBEE Improvement Plan: Tenderers must submit a B-BBEE improvement or retention plan within 30 days of signing the contract. Specific migration milestones are required based on B-BBEE status level at award.
• Subcontracting: Minimum 5% of contract value must be subcontracted to designated EMEs/QSEs.
• Sworn Affidavit Validity: Detailed requirements are provided for the validity of sworn affidavits, including deponent details, enterprise information, revenue, B-BBEE status level, and commissioner of oath rules.

• The Commissioner of Oath cannot be an employee or ex officio of the enterprise, as a person cannot commission a sworn affidavit in which they have an interest.

• Eskom will retain 2% of every invoice (excluding VAT) as security for fulfilling all SDL&I obligations.
• Retained amounts will only be released upon:

• Receipt of SDL&I progress reports from the contractor.
• Fulfilment of all SDL&I obligations by the contractor.
• Submission of an approved compliance report by the SDL&I Department.

• Suppliers must submit quarterly SDL&I reports to Eskom.
• Eskom will review reports within 30 days and notify suppliers in writing if obligations are not met.
• Suppliers must implement corrective measures before the next report if obligations are not met, otherwise retention clauses will be invoked.
• An SDL&I Implementation Schedule must be completed and returned to the SDL&I representative within 28 days after contract award for monitoring and reporting.

• Potential subcontracting/outsourcing scope includes labour, material, and transportation of material.

• Tenderers who fail to provide B-BBEE documentation will score 0 points for specific goals and may only score out of 80 points for price.

• Project: Replacement of obsolete MV switchgear at Arnot Power Station.
• Existing switchgear is end-of-life, unsupported, unreliable, and unsafe due to past explosions and non-compliance with arc protection standards.
• New switchgear must comply with internal arc standards, incorporate arc mitigation, and meet current regulatory requirements.
• Full scope includes decommissioning, removal, design, manufacturing, testing, installation, commissioning, and handover.

• Submit all mandatory returnable documents to avoid disqualification:
• Compliance Declaration.
• Internal arc test certificate.
• Accredited type test certificate and reports.
• Short-circuit withstand certificate.
• Routine test certificate for the supplied panels.
• Fully completed Schedules: 240-9357677_technical schedule AB Arnot PS, 240-56030406 RMU Technical Schedule A&B, and Protection Technical Schedule A and B.
• Provide a list of equipment, components, and technologies offered for switchgear, protection devices, data communication systems, and cabling works.
• Submit evidence of experience in similar projects: client reference letters, contract award documents, and completion or commissioning certificates.
• Provide a letter committing that major equipment (switchgear, protection devices, data communication) is supplied by the Original Equipment Manufacturer (OEM). If not the OEM, include a written licence agreement with the OEM valid for the contract duration.
• If the type testing laboratory is not a member of Short-circuit Test Liaison (STL), provide proof of its ISO/IEC 17025 compliance.
• List all type test certificate numbers for the equipment offered.
• Reference list of identical equipment must show projects where technology was used, including client names, country, year, and a minimum of five years since installation.
• Protection devices must be listed in Eskom standard 240-56227586.

• Mandatory returnable documents:
• Compliance Declaration.
• Internal arc test certificate.
• Accredited type test certificate and reports.
• Short-circuit withstand certificate.
• Routine test certificate for supplied panels.
• Fully completed Schedules: 240-9357677_technical schedule AB Arnot PS and 240-56030406 RMU Technical Schedule A&B, and Protection Technical Schedule A and B.
• List of equipment, components, and technologies offered for switchgear, protection devices, data communication systems, cabling.
• Evidence of similar project experience: client reference letters, contract award documents, completion or commissioning certificates.
• Letter committing that major equipment is supplied by the OEM; if not, provide OEM licence agreement valid for contract duration.

• Technical evaluation threshold: minimum weighted final score of 70% to be considered technically acceptable.
• Mandatory criteria (pass/fail):

1. Submission of all required compliance schedules and documentation.
2. Proof of switchgear compliance with internal arc protection standards (IEC 62271-200 or equivalent).
3. All major equipment must be from the OEM or backed by a licence agreement valid for the contract duration.
4. Demonstrated experience with similar projects and technology.

• Qualitative criteria (weighted scoring, total 100%):
• Switchgear (50%):
• Compliance Schedules (20%)
• Basic Technical Requirement (4%)
• Type Testing Requirements (4%)
• Maintenance Plan (2%)
• Switchgear Schedule (20%)
• Switchgear Protection (50%):
• Compliance Schedules (20%)
• Equipment and system design (20%):
• Conceptual design for protection schemes (8%)
• Interface with C&I system design (4%)
• Design Drawings (8%)
• Maintenance Plan (4%)
• Training (2%)
• Supporting Documents (4%)
• Acceptable technical exceptions/conditions are as per qualitative criteria; unacceptable exceptions/conditions are as per mandatory criteria.

• Project: Replacement of outside plant MV switchgear at Arnot Power Station over a 3-year period.
• Scope includes:
• Decommissioning and removal of existing MV switchgear, battery chargers, batteries, associated power and control cables, and extraction fans.
• Relocation of removed equipment to dedicated site areas.
• Design and manufacturing of new MV switchgear.
• Factory acceptance testing (FAT), supply, delivery, offloading, positioning, and installation in outside plant MV switchgear rooms.
• Site acceptance testing (SAT), commissioning, and final handover.
• Key technical drivers:
• Existing switchgear is end-of-life, unsupported by OEM, with unreliable protection and past explosion incidents.
• Non-compliant with current internal arc protection standards; lacks arc containment features.
• Obsolete, difficult to maintain, with spare parts unavailable.
• New switchgear must:
• Comply with internal arc protection standards (e.g., IEC 62271-200).
• Incorporate advanced arc mitigation systems.
• Align with current regulatory and safety requirements.
• Improve reliability and ensure safe, stable electrical supply.
• Referenced standards and documents:
• Eskom standards: 240-56227573, 240-56357424, 240-56030406, 240-56227586.
• Iec 62271-200.
• Works Information/Technical Specification for the project.

• Qualitative evaluation includes methodology aspects:
• Proposed design documentation for protection schemes (8% weighting).
• Interface design with C&I system (4% weighting).
• Submission of design drawings as per Works Information (8% weighting).
• Maintenance plan (4% weighting).
• Training as per Works Information (2% weighting).

• Provide evidence of experience in projects of similar nature and complexity: client reference letters, contract award documents, completion or commissioning certificates.
• Reference list of identical equipment must indicate projects where the technology was implemented, including client names, country, year, and a minimum of five years since installation.
• Arnot Power Station will verify the evidence provided.

• If the type testing laboratory used is not a member of Short-circuit Test Liaison (STL), you must provide proof of the laboratory's compliance with ISO/IEC 17025 requirements.

• Mandatory compliance requirements:
• Equipment must comply with type testing requirements, including internal arc tests as per IEC 62271-200 or equivalent standards.
• Submit compliance declaration and all required test certificates.
• Major equipment (switchgear, protection devices, data communication systems, cabling) must be of proven technology.
• Provide evidence of experience in similar projects: client references, contract awards, completion certificates.
• Major equipment must be supplied by the Original Equipment Manufacturer (OEM) or with a valid OEM licence agreement for the contract duration.
• Protection devices must be listed in Eskom standard 240-56227586 (List of approved electronic devices).
• If type testing lab is not an STL member, prove ISO/IEC 17025 compliance.
• Note: The document is a Controlled Disclosure tender technical evaluation strategy. It references Eskom procurement policy and generation tender evaluation procedure.

• Safety critical issues with existing switchgear:
• Unreliable protection systems and past explosions causing equipment damage.
• Non-compliant with current internal arc standards; lacks arc containment, allowing faults to propagate.
• Difficult to maintain due to obsolescence and spare parts unavailability.
• The replacement project will address these to ensure a safe and stable electrical supply with compliant, advanced arc mitigation systems.

• The replacement project aims to eliminate obsolescence, improve reliability, and ensure a safe, stable electrical supply.
• New switchgear must comply with internal arc protection standards and incorporate advanced arc mitigation systems.

• Mandatory submission requirements:
• Compliance Declaration, internal arc test certificate, accredited type test certificate and reports, short-circuit withstand certificate, routine test certificate.
• Fully completed schedules: 240-9357677_technical schedule AB Arnot PS and 240-56030406 RMU Technical Schedule A&B, and Protection Technical Schedule A and B.
• List of equipment, components, and technologies offered for switchgear, protection devices, data communication systems, cabling.
• Evidence of similar project experience: client references, contract awards, completion certificates.
• Letter committing that major equipment is supplied by the OEM; if not, provide OEM licence agreement valid for contract duration.
• If type testing lab is not STL member, prove ISO/IEC 17025 compliance.
• List all type test certificate numbers.
• Reference list showing projects where technology was used, with client details and minimum five years since installation.
• Protection devices must be listed in Eskom standard 240-56227586.

• Technical evaluation threshold: minimum weighted final score of 70%.
• Mandatory criteria: submission of all required compliance schedules, proof of switchgear compliance with internal arc standards, OEM or licence agreement for major equipment, and demonstrated experience.
• Qualitative criteria: weighted scoring across switchgear (50%) and switchgear protection (50%), covering compliance schedules, design, type testing, maintenance plans, training, and supporting documents.

This document is Eskom's 'List of Approved Electronic Devices to be used on Eskom Power Stations' (Standard 36-726).

• It provides a list of products (e.g., protective IEDs, relays, other electronic devices) approved for installation on Eskom power station electrical plant.
• Its purpose is to guide Eskom engineering teams in product selection for protection, excitation, and measurement systems in new designs or modifications.
• It applies to all Eskom Generation sites.
• The document includes extensive appendices categorising approved devices by function (e.g., generator protection, motor protection).

Suppliers must demonstrate the ability to supply and support equipment from the approved manufacturers listed in the standard's appendices. Technical proposals must align with the device functions and communication protocols specified for each application. Suppliers are responsible for ensuring any proposed device firmware/hardware versions are compatible with the approved versions listed, as per notes in section 3.2.

This document is Eskom's standard list of approved electronic devices for power station electrical plant.

• Purpose: Guides Eskom teams in selecting products (protection, excitation, measurement) for new schemes or modifications.
• Applicability: Applies to all Eskom Generation sites.
• Key References: Must use the latest editions of referenced Eskom standards, including:
• 240-64685228: Generic specification for protective intelligent electronic devices (IEDs).
• 36-726: This list itself.
• Cyber Security Standard for Operational Technology (240-55410927).
• Information Security – IT/OT Remote Access Standard (32-373).
• Device Lists: Approved, not approved, obsolete, and on-hold devices are listed by function in appendices (e.g., Generator Protection, Transformer Protection).
• Type Testing Requirements:
• Tenderers can submit existing type test certificates from independent labs, scrutinised by Eskom.
• Evidence from substantially similar equipment may be accepted.
• Type testing, if required, is at the Tenderer's expense.
• Protective IEDs must be tested per 240-64685228.
• Other electronic devices require a suite of tests (EMC, insulation, environmental) selected based on technology.
• Important Notes:
• Devices supplied may have higher firmware; hardware must be the same as tested.
• Devices on 'On Hold' status may not be used for new designs.
• Criteria for Status Change:
• Devices can be moved to 'On Hold' for issuing incorrect trips, repeated failures, or not aligning with Eskom protection philosophy.
• Devices can return to 'Approved' after re-engineering, firmware updates, or improved documentation.

The document lists the development team and revision history, but does not specify bidder experience or key personnel qualifications. The content is administrative and not relevant to bidder qualification.

The document defines quality assurance processes for electronic devices.

• Type Testing: Mandatory for device families; certificates and detailed independent lab reports are required.
• Conformance Evidence: Submitted certification must clearly show conformance to standards.
• Device Status Management:
• Devices can be placed 'On Hold' for performance issues (e.g., incorrect trips, repeated failures), incompatibility with Eskom practices, or poor documentation.
• Devices can be reinstated to 'Approved' after re-engineering, firmware updates, or provision of satisfactory documentation.
• Testing Standards: Specifies detailed test requirements for EMC, insulation resistance, and environmental conditions (vibration, shock, temperature, humidity).
• Reference Documents: Requires adherence to a suite of Eskom specification documents for measurement and metering equipment.

The document specifies technical compliance requirements for electronic devices used on Eskom power stations.

• Approved Devices: Bidders must propose devices listed as 'Pass' or 'Approved' in the relevant appendices.
• Testing Compliance:
• Devices must have passed type testing per the guidelines, or equivalent evidence must be submitted.
• Test reports must be from an independent laboratory and reviewed by a skilled Eskom employee.
• Standards Compliance: All devices must conform to the referenced Eskom standards and international norms (e.g., IEC, ANSI) for EMC, insulation, and environmental tests.
• Documentation: Operation manuals and documentation for devices must be clear and understood by Eskom staff.
• Status Adherence: Devices listed as 'On Hold', 'Fail', or 'Not Approved' should not be proposed for new schemes.

The document specifies environmental testing requirements for electronic devices.

• Tests must be performed according to international standards (IEC).
• Environmental Test Requirements include:
• Vibration tests (sinusoidal) per IEC60255-21-1, Class 1.
• Shock and bump test per IEC60255-21-1, Class 1.
• Seismic test per IEC60255-21-3, Class 1.
• Cold test: Operate with tolerance at -10°C (LCD screen operative) per IEC60068-2-1.
• Dry heat test: Operate with tolerance at +55°C per IEC60068-2-2.
• Cyclic temperature and humidity test per IEC60068-2-30 (25°C/95% RH to 55°C/95% RH, 12+12 hour cycle).

The document lists ANSI function codes (e.g., 27/51 voltage controlled overcurrent, 40 loss of excitation, 50P instantaneous overcurrent, 50/27 inadvertent energising, 50BF breaker failure, 50N/G instantaneous overcurrent neutral/ground, 51BF breaker failure IDMT, 51NBF breaker failure neutral, 64R rotor ground injection, 64S stator ground injection, 86 lockout master trip) that define the protection functions devices must support. Bidders must ensure proposed devices cover the required ANSI functions for the specific application.

21, 24, 25, 27, 27g, 32rou, 40, 46, 50p,

ABB GPU2000 50G, 50IE, 51GPV, 59, 59G, 60, 64F, 67, Pass Y Generator

67N, 81ou, 87

SPA or IEC 60870-5-

21, 24, 27, 32, 40, 46, 49, 49S, 49R, 50, 103, LON or MVB

ABB REG316 51, 51/27, 59, 60, 64R, 64S, 67, 78, 81, Pass Y (part of IEC 61375), Product

87G, 87T MVB (part of IEC

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MANUFACTURER TYPE FUNCTIONS PASS / FAIL Y2K Communication COMMENTS

SPA or IEC 60870-5-

103, LON or MVB

21, 24, 32, 40, 46, 49, 50, 51, 51/27, 59,

ABB REG216 Pass Y (part of IEC 61375), System

60, 64, 78, 81, 87t, 87g

MVB (part of IEC

21P/C, 24, 25, 27, 32, 40, 46, 49, 50PGQ, Switch Protocol

SEL 300G 5ON, 51G, 51N, 51V/C, 52, 59PGQ, 60, Pass Y (LMD), SEL Fast Generator

64G,81OU, 87, 87N Meter, SEL

Modbus® RTU

87(Not P342), 50/51/67, 50N/51N,

K-Bus, IEC-60870-5-

Micom 67N/67W, 64, 51V, 21, 59V, 27/59, 81,

Areva Pass Y 103, MODBUS or Generator

P34x 32, 40, 46T, 46OC, 47, 49, 24, 78,

Dnp3.0, Iec 874-10.

27TN/59TN, 50/27,50bf, 64s(p345)

21P, 24, 25, 27p, 27tn, 27x, 32, 40,

MMS/UCA2, dnp

46G, 50/27, 5odd, 50p, 50g, 50n, 51p,

GE G60 Pass Y 3.0, Modbus RTU / Generator

51G, 51n, 59n, 59p, 59x, 59_2, 64tn,

Tcp

67P, 67n, 68, 78, 81u, 81o, 87s

12, 21, 24, 27, 50/27, 32, 38, 39, 40, 40q,

GE SR489 46, 47, 49, 50, 50BF, 50/51GN, 51V, 59, Pass Y

3.0 Management

59GN/27TN, 60fl, 67, 76, 81,86, 87g

24, 27, 32, 40, 46, 50, 50/27, 50bf, 51n,

Beckwith M-3420 Pass Y Modbus, BECO 2200 Generator

50N, 51v, 59, 59n, 60fl, 81, 87, 87gd

Siemens 7VH60 87T, 87N Pass Y

ABB SPAD346C 50, 50BF, 50N, 51,51N,87G,87T Pass N/A SPA-Bus Transformer

Spa, lon, iec 60870-

21, 24, 27, 46, 47, 49, 50, 51, 59, 60fl, 5-103, dnp

ABB RET54* Pass Y 3.0,Modbus Transformer 67N, 81, 87G, 87T

SEL 387 50PGQ, 51PGQ, 52, 67G, 87 Pass Y Fast Messaging, Diff and O/C

or ASCII protocol

24, 27x, 50/87, 50p, 50g, 50n, 51p,

GE T60 51G, 51N, 59N, 59P, 59X, 67P, 67N, Pass Y MMS/UCA2, DNP 3.0, Transformer

81U, 81O, 87T,87G Modbus RTU / TCP

24, 27, 46, 50, 50bf, 50g, 51, 51g, 51n,

BECKWITH M-3310 Pass Y Modbus, BECO 2200 Transformer 59G, 81U, 87, 87GD

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MANUFACTURER TYPE FUNCTIONS PASS/FAIL Y2K Communication Comments

24, 27, 46, 49, 50, 50bf, 50g, 50n, 51,

BECKWITH M-3311 Pass Y Modbus, BECO 2200 Transformer 51G, 51N, 59G, 81O/U, 87, 87GD

21, 24, 25, 27, 46, 50, 50n, 50bf, 51/67, IEC61850-8-1,

ABB RET67* 51N/67N, 52PD, 59, 59N, 59THD, 67N, Pass Y IEC60870-5-103, Transformer

81, 87t, 87, 87g, 87n, 94 dnp3.0, Lon, spa

50/51PQN, 67, 50/27, 85, 79, 25, 67N, IEC 60870-5-103, IEC processor boards

Micom P632

Areva 37/48/49/49LR/50S/66, 49, 46, Pass Y 60870-5-101, DNP 3.0, P9651428 index G

and P633

27/59PQW, 81,32, 50BF/62, 30/70 and P9651472

approved.

27, 46, 49T, 50/51P&N, 51P&NBF, 59, Transformer with

Abb ret63*

87N&T Pass Y DNP3.0, IEC61850 differential

16, 24, 25, 27, 32, 46, 49, 50/51P&N, 59, Transformer with

Sel 487e

67, 81, 85, 87 Pass Y IEC61850 differential

M.S.P. MSP 3-2 Pass N/A

Siemens 3UN21 Pass N/A Thermistor type

FANOX F20 Pass N/A

FANOX G17 Pass N/A

Siemens Pass N/A RS232 + Profibus

Dp

Powertronics M400 Pass N/A Version 5.5 only

Powertronics M500 Pass N/A

14, 37, 46, 48, 49, 49R, 49S, 50, 50N, Incl Trip CCt

Siemens 7SJ6112 Pass Y

50BF, 51, 51N, 74TC, 79, 86, 87N Superv and CB Fail

VAMP VAMP150 14, 37, 46, 49, 50, 50BF, 51, 66, 74TC Pass Y Arc Sensor input

14, 26, 37, 46, 48, 49, 27/49, 50, 51lr,

Areva Micom P241 50N, 51N, 53, 59N, 61N, 32N/64N, 66, Pass Y

81U

Schweitzer Eng SEL-701 27/59, 37, 46, 47, 49, 50, 55, 66, 81 Pass Y

14, 27, 37, 38, 46, 47, 49, 50P/G/N, 55,

Schweitzer Eng SEL- 710 Pass Y Motor

59, 66, 81O/U, 87

14, 27, 37, 38, 46, 47, 49, 50P/G/N, 55,

Schweitzer Eng SEL- 749M Pass Y Motor

59, 66, 81O/U

ABB MCX913 Pass N/A

ABB SPAM150 14, 37, 46, 46R, 49M, 50, 51, 66 NPS and power N/A Motor

supply problems.

Siemens 7SJ551 Pass N/A

Strike Technologies FP2000 Pass N/A

Cutler Hammer MP3000 Pass N/A

14, 21, 24, 27, 27/34, 32f, 32r, 40, 46,

IEC60870-5-103,

48, 49, 49S, 50, 50N, 50BF, 51, 51N, Generator and

Siemens 7UM61 Pass Y Profibus DP, Modbus

51V, 59, 59N, 59GN, 64R, 67, 67N, 67G, Motor

Rtu, dnp 3.0

74Tc, 81, 81r, 86,

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MANUFACTURER TYPE FUNCTIONS PASS / FAIL Y2K Communication COMMENTS

14, 21, 24, 27, 27/34, 32, 32f, 32r, 37,

40, 46, 48, 47, 49, 49s, 50, 50n, 50bf, IEC60870-5-103,

Siemens 7UM62 51GN, 51, 51N, 51V, 59, 59N, 59GN, 64, Pass Y Profibus DP, Modbus

64R, 67, 67n, 67g, 68, 74tc, 78, 81, rtu, dnp 3.0

81R, 86,87g,87t, 87m, 87n

46, 48, 49, 49R, 49S, 50,50N, 51, 51N, Motor and

Siemens 7SJ600 Pass Y IEC60870-5-103

74TC, 79 Generator

IEC60870-5-

14, 21fl, 27, 37, 46, 47, 48, 49, 49r, 103/IEC61850,

Siemens 7SJ62 49S, 50, 50N, 50BF, 51, 51N, 59, 59N/ Pass Y Profibus-FMS/-DP,

64, 66, 67, 67N, 74TC, 79, 81, 86, 87N DNP 3.0, Modbus

Rtu

IEC60870-5-

14, 21fl, 25, 27/59, 32, 37, 38, 46,47, 48,

103/IEC61850,

49, 49R, 49S, 50, 50N, 50BF, 51, 51N, Motor and

Siemens 7SJ642 Pass Y Profibus-FMS/-DP,

55, 59N/64, 67, 67N, 74TC, 79M, 81, 86, Generator

DNP 3.0, Modbus

Iec 60870-5-103,

50/51PQN, 67, 50/27, 85, 79, 25, 67n,

Micom P632 IEC 60870-5-101, Generator and

Areva 37/48/49/49LR/50S/66, 49, 46, Pass Y

and P633 DNP 3.0, Motor

27/59PQW, 81,32, 50BF/62, 30/70

DNP3.0, IEC61850, Protection and

ABB RE*6** Model dependant Pass Y

IEC60870-103 Control

Iec61850, ieee

1588, RSTP, PRP, Protection and

Arcteq AQ M2** Model dependant Pass Y PTP, Modbus TCP, Control

Dnp 3.0, Ftp,

RSA fp2000

Schneider SEPAM 2000 Pass Y With Thermal

ABB REJ525 46, 50, 50N, 51, 51N, 62BF Pass Y

27, 27/47/59, 46, 50, 51, 50n, 51n, 59,

ABB REF54* Pass Y

59N, 67, 79, 81U/81O

ABB RXIDK2H 50, 51 Pass N/a 40 – 2000 Hz

Thytronics SCC-P72 Pass Y

Areva Micom P12X 37, 46, 49, 50, 50N, 50BF, 51, 51N, 79 Pass Y

IDMT blocks when I>>

ABB SPAJ14* 50, 50N, 51, 51N , 50BF Pass N/A

pick-up

Siemens 7SJ511 Pass N/A

Basler BE1-50/51M Pass N/A Single phase

Basler BE1-50/51B Pass N/A Three phase

CEE ITG7366 Pass N/A Three phase

ABB SPAJ11* 50N, 51N Pass N/A Earth fault

Iec 60870-5-103,

49, 50, 50n, 50bf, 51, 51n, 74tc, 79,

Siemens 7SD61 Pass Y Profibus-DP, DNP- Feeder

85, 86, 87t, 87l

3.0

25, 27, 32, 32 QVI, 50PGQ, 50N, Directional O/C and

SEL 351 Pass Y Fast Messaging,

51PGQ, 51N, 52, 59, 67PGQ, 67N, 79 Reclosing

or ASCII protocol

List of Approved Electronic Devices to be used on Eskom Unique Identifier: 240-56227589

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MANUFACTURER TYPE FUNCTIONS PASS / FAIL Y2K Communication COMMENTS

SEL 501 49, 50PGQ, 51PGQ, 52, 62, 66 Pass Y Fast Messaging, Dual Universal O/C

or ASCII protocol

SEL 551 50PQG, 50N, 51PGQ, 51N, 52, 79 Pass Y Fast Messaging, O/C and Reclosing

or ASCII protocol

SEL 387 50PGQ, 51PGQ, 52, 67G, 87 Pass Y Fast Messaging, Diff and O/C

or ASCII protocol

Iec 60870-5-103,

Iec 60870-5-101,

Areva Micom P13* 24, 27/59, 49, 50, 51, 87, 87G Pass Y Feeder

DNP 3.0, Modbus

and Courier

21G&p, 25, 27p, 27x, 32n, 50bf,

5Odd, 50p, 50g, 50n, 50p, 50_2, dnp 3.0, Iec60870-

GE L90 Pass Y Line differential

51P, 51g, 51n, 51_2, 52, 59n, 59p, 5-104

59X, 67p, 67n, 67_2, 68, 78, 79, 87l

27P, 27X, 50G, 50N, 50P, 51G, 51N, DNP 3.0 or

GE F35 Pass Y Multiple Feeder in one

51P, 52, 59n, 59x, 79, 81 IEC60870-5-104

GE MIF II 49, 50P, 50G, 51G, 51P, 79 Pass Y Modbus TCP/IP Distribution Feeder

Dnp3.0, Iec61850-

ABB RE*6** Model dependant Pass Y (Functions model

8-1 (goose)

dependant)

27, 46, 49m, 50P/N, 50bf, 51P/N, 59, dnp3.0, Iec61850.

VAMP VAMP25* Pass Y Protection and Control

79, 81, AFD Modbus

Iec61850, dnp3.0,

SEL 451 27, 59, 50, 50BF, 51, 52, 59, 67, 79 Pass Y automation, bay

control

IEC61850, Modbus, Feeder protection with

SEL 751 25, 27, 32, 50, 51, 59, AFD, 79 Pass Y

DNP3.0 ARC flash

Iec61850, ieee

1588, rstp, prp,

Arcteq AQ F2** Model dependant Pass Y PTP, Modbus TCP, Protection and Control

Dnp 3.0, Ftp,

24, 25, 27, 27p, 27x, 32, 46, 49,

GE 350 50/51P&N, 50BF, 59, 60, 67, 79 ,81, Pass Y IEC61850, DNP 3.0, LV Incomers

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Power Stations Standard Revision: 4

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IEC60870-5-

103&104, prp &

SPAU140 ABB-Stromberg Pass N/A

MIC 1000 General Electric Spa. Pass N/A Alt. To TC32

BE3-25 Basler Pass N/A

BE1-25 Basler Pass N/A

ABB SPAD330 87 Pass N/A 3

ABB RADSB 87 Pass N/A 5

ABB DT92 87 Pass N/A 7 8 Transformer

Basler BE1-87G 87 Pass N/A 9 10 Generator

Basler BE1-87T 87 Pass N/A 11 12 Transformer

Siemens 7VH83 87 Pass N/A 13 14 Bus Zone

ABB-Stromberg SPAE010 87 Pass N/A High Impedance

ABB-Stromberg SPAJ115C 87, 87Gnd Pass N/A + Res. E/F High impedance

Modbus, DNP3 &

Iec 60870-103.

46, 46PD, 49F, 50P/51P, 51BF, 51NBF, Line differential

ABB RED615 Pass N/A IEC61850 via

51N, 67N, 68, 79, 86, 87L and bay control

SPAJ111C ABB-Stromberg OY Pass N/A

Siemens 7RW6000 24, 27, 59, 81 Pass Y IEC60870-5-103

Micom IEC60870-5-103, Voltage and

Areva 27, 47, 59, 81 Pass Y

P92* Modbus (RTU), DNP3 Frequency

IEC61850, IEC60870- Voltage and Control

ABB RE*6** 27, 47, 59, 62, 86 Pass Y 103, Modbus, Profibus, 9Functions model

DNP3.0, SPA, LON dependant

Iec61850, ieee 1588,

Arcteq AQ V2** 27, 59, 81 Pass Y

Modbus TCP, DNP 3.0, Control

H3CA OMRON Pass N/A

H3BA OMRON Pass N/A

T3D/S Electro Fail N/A

RES010 ABB-Energi Pass N/A

M-0193B Beckwith Electric Inc Pass N/A Dated Technology

M-0194 Beckwith Electric Inc. Pass N/A Dated Technology

7VE63 Siemens Pass Y Recommended

7VE61 Siemens Pass Y

Synchrotact 4 ABB-Drives Pass N/A Not recommended

7VE512 Siemens Pass N/A

BE1-25A Basler Electric Pass N/A D/Gen only

BE3-25A Basler Electric Pass N/A D/Gen only

SYN3000 VA-Tech Pass N/A S/w Syn-Win version 2.2