Design, manufacture, testing, supply and delivery of a 300 kw medium voltage induction motor for tutuka power station overland coal conveyor

Closing date: 8 October 2026 at 10:00

Bidders must sign the Section 37(2) Agreement, acknowledging that they are an employer in their own right with duties under the Occupational Health and Safety Act, and must ensure that all work and machinery/plant used complies with the Act. Bidders must comply with the SHE specifications provided.

The contractor must sign the Section 37(2) Agreement, acknowledging that they are an employer in their own right with duties under the Occupational Health and Safety Act, and must ensure that all work and machinery/plant used complies with the Act. The contractor must comply with the SHE specifications provided.

The document is the Eskom eTendering System Suppliers Help Manual. It explains how suppliers register and submit tender documents electronically. Key points:

• The system replaces physical submission at Eskom tender offices.
• Suppliers must register on the system and verify their email and cellphone via OTP.
• A CSD number is required for access.
• Tenders are uploaded under categories (Technical, Commercial, Finance).
• File size limits: 50MB per file, 900MB total.
• After final submission, an email confirmation with a submission ID is sent.
• For system problems, contact the buyer responsible for the tender.

No specific contact details for this tender are provided in the document. The manual states that for system problems, contact the buyer responsible for the published tender, but no name, email, or phone is given.

Submission is electronic only via the Eskom eTendering system.

• Access the system at https://eTendering.eskom.co.za or via the TenderBulletin public website at https://tenderbulletin.eskom.co.za.
• A CSD number is required to gain access.
• Register on the system and verify your email address and cellphone number using the OTP sent to both.
• Upload documents under the correct category (Technical, Commercial, Finance, etc.).
• Each file must not exceed 50MB; total size of all uploaded files must not exceed 900MB.
• Finalise the submission by clicking 'Finalize Submission' and then 'Finalise and Close Submission'.
• After finalisation, an email confirmation with a submission ID is sent; save this email for future reference.
• Closing time: 10:00 on the closing date.

No tender-specific evaluation criteria are stated in the provided document. The document is a user manual for the eTendering system and does not describe the evaluation method, scoring, or preference points for this tender.

The document is a user manual for the Eskom eTendering system, not the tender specification. It does not describe the scope, quantities, or technical requirements for the Medium Voltage Induction Motor procurement.

CSD registration is mandatory to access the eTendering system and submit a bid.

No other compliance requirements (tax, B-BBEE, CIDB, etc.) are stated in the document.

The procurement is for a medium voltage induction motor to drive an electric compressor at Tutuka Power Station. The plant description is 'Electric compressor' and the application is 'Compressor'.

Eskom requires the design, manufacture, testing, supply and delivery of a medium voltage induction motor for the electric compressor at Tutuka Power Station. The motor must be a once-off purchase.

Key technical requirements:

• Rated output power: 350 kW
• Supply voltage: 3.3 kV (±5% normal, ±10% abnormal)
• Frequency: 50 Hz (±2%)
• Full load current: 72 A
• Rated speed: 2960 RPM
• Winding connection: Star
• Duty class: S1 (continuous)
• Insulation class: F (minimum), temperature rise class B (max 80 K)
• Enclosure: IP55
• Cooling: IC611, CACA type
• Bearings: Sleeve type, size 80, lubricant TH32, lubrication interval ≥4000 hrs, bearing life ≥100,000 hrs
• Frame size: 355
• Motor life expectancy: >20 years
• Starts per hour: 2 hot, 3 cold
• Efficiency: 95.0% at 100% load, 94.5% at 75%, 93.0% at 50%
• Power factor: 85% at 100%, 83% at 75%, 80% at 50%
• Torque: full load 1129 Nm, locked rotor 790 Nm, pull up 790 Nm, breakdown 2484 Nm
• Locked rotor current: 432 A
• Stator winding: form-wound, VPI impregnation, epoxy glass magnetic wedges
• Rotor: fabricated copper, single cage
• Space heaters: installed, 220 V AC
• Surge suppressors: required, dry type, 1 per phase
• Temperature detectors: 3-wire PT100 RTDs, 2 per phase; bearing Type-K thermocouples, 1 per bearing
• Dial type temperature indicators for bearings (range 0-120)
• Insulated bearings: yes
• Bi-directional rotation
• Maximum motor mass: 3 tons
• Maximum dimensions: height 1400 mm, length 2550 mm, breadth 1300 mm
• Motor must fit on existing base
• Paint: standard, 2 anti-rust primer coats, final colour BS 381 G29 (grey)

Standards and specifications:

• SANS 60034
• Eskom Standard 240-50237155
• Existing motor is Siemens; supplier to quote using Siemens dimensions

Documentation to be provided by supplier:

• Motor outline drawing
• Power winding and auxiliary schematic diagrams (after contract award)
• Torque-speed curves at 100%, 85%, 75% voltage
• Current-speed curves at 100%, 85%, 75% voltage
• Efficiency and power factor vs load curves
• Thermal limit curves

The motor must be designed, manufactured, tested, supplied and delivered to Tutuka Power Station. The supplier must provide required drawings and curves as listed in the technical schedule. The motor must comply with SANS 60034 and Eskom Standard 240-50237155. The motor must have a life expectancy of more than 20 years.

The technical schedule covers driven load requirements, power supply, operating conditions, motor electrical details, thermal details, mechanical details, monitoring/protection/accessories, interface to plant, painting, station limitations, and documentation requirements. The motor must be suitable for indoor, dusty conditions, at an altitude of 1626 m, with ambient temperatures ranging from 0°C to 40°C. The supply voltage is 3.3 kV ±5% (normal) and ±10% (abnormal), frequency 50 Hz ±2%. The motor must be rated 350 kW, 2960 RPM, with full load current 72 A. Performance guarantees include efficiency of 95% at full load, power factor of 85%, and breakdown torque of 2484 Nm. The motor must have IP55 enclosure, IC611 cooling, sleeve bearings, and be suitable for direct-on-line starting. The supplier must provide all required documentation including outline drawings, torque-speed curves, and thermal limit curves.

Bidders must complete the technical schedule (Schedule A & B) and comply with Eskom's technical specification 240-57617975 and standard 240-50237155. The motor must meet SANS 60034. Bidders must provide all required drawings and curves as listed in the schedule. No other eligibility criteria (e.g., CSD registration, B-BBEE level, tax clearance) are stated in the provided document.

Plant description: Ash Extendible Conveyor. Application: Conveyor.

• Motor rating: 315 kW, 3,300 V, 50 Hz, 62 A full load current, 1481 RPM, star connection, duty class S1.
• Performance guarantees: full load torque 2031 Nm, locked rotor torque 2031 Nm, pull up torque 2031 Nm, breakdown torque 4469 Nm, locked rotor current 370 A.
• Efficiency: 95.0% at 100% load, 94.5% at 75% load, 93.0% at 50% load.
• Power factor: 85% at 100% load, 83% at 75% load, 80% at 50% load.
• Insulation class F, temperature rise 80 K (max class B).
• Enclosure IP65, cooling IC411, TEFC.
• Bearings: rolling element, grease lubricated, lubrication interval ≥4000 hrs, bearing life ≥100,000 hrs.
• Frame size MS 400, dimensions per IEC 60072-2.
• Motor must fit on existing base; maximum mass 3 tons, max height 1100 mm, max length 1880 mm, max breadth 1700 mm.
• Starting method: direct-on-line (DOL).
• Number of starts: 2 hot starts per hour, 3 cold starts per hour.
• Space heaters installed (220 V AC).
• Surge suppressers required (dry type, 1 per phase).
• Stator winding embedded temperature detectors: 3-wire PT100 RTD, 2 per phase.
• Bearing temperature detectors: Type-K thermocouple, 1 per bearing.
• Dial type temperature indicators for bearings.
• Painting: standard finish, 2 anti-rust primer coats, external final colour BS 381 G29 (grey).
• Documentation: supplier to provide motor outline drawing, power winding and auxiliaries schematic diagrams, torque-speed curves at 100%, 85%, 75% voltage, current-speed curves, efficiency/power factor vs load curves, thermal limit curves.

No specific compliance requirements stated in the provided document.

No specific health and safety requirements stated in the provided document.

The motor must comply with Eskom specification 240-57617975 and standard 240-50237155. The supplier must provide all required drawings and curves after contract award. The motor must fit on the existing base at Tutuka Power Station.

No additional evaluation criteria beyond the technical schedule completion and compliance with Eskom specifications.

Closing date: 11 August 2026 (time not stated in the document).

Eskom representative: Dimpho Mnisi

Date issued: 11 August 2026

Returnable documents (Category 3 quality deliverables) must be submitted with the bid. Each item is scored and must be provided:

• QMS Manual or document defining the QMS and its scope.
• Quality Policy approved by top management.
• Quality Objectives approved by top management.
• Documented information for control of documented information (ISO 9001:2015 clause 7.5).
• Documented information for control of nonconforming outputs (clause 8.7).
• Documented information for nonconformity and corrective action (clause 10.2).
• Documented information for internal audit (clause 9.2).
• Organisation chart and responsibility matrix including quality management function (clause 5.3).
• Documented information for control of externally provided processes, products and services, including criteria for evaluation, selection, monitoring and re-evaluation of external providers (clause 8.4).
• Draft Contract Quality Plan specific to the scope of work (ref ISO 10005).
• Draft or example of an Inspection and Test Plan (ITP) or Quality Control Plan (QCP) on similar or previous work.
• Form A completed and signed.
• Any other requirements as per the scope of work or specification.

The bid is evaluated on the quality deliverables listed, each scored as 1 point. Total possible score is 13 (Section A: 7, Section B: 2, Section C: 1, Section D: 1, Section E: 2). Bidders must achieve the required score to be considered. No minimum qualifying score is stated in the document.

The scope is the design, manufacture, testing, supply and delivery of a Medium Voltage Induction Motor to Tutuka Power Station, for a once-off purchase. The motor must be supplied and delivered to the specified location.

Bidders must have a documented QMS that complies with ISO 9001, whether certified or not. The QMS must be in operation, as evidenced by the required documented information. A draft Contract Quality Plan and an ITP or QCP on similar work must be submitted. Form A must be completed and signed.

Bidders must have a documented Quality Management System (QMS) that complies with ISO 9001, whether certified or not. The QMS must be in operation, as evidenced by the required documented information. No other compliance requirements (such as CSD registration, tax clearance, B-BBEE level, or CIDB grading) are stated in the provided document.

The evaluation is based on the quality deliverables listed in the returnable documents. Each deliverable is scored as 1 point. Total possible score is 13 (Section A: 7, Section B: 2, Section C: 1, Section D: 1, Section E: 2). No minimum qualifying score is stated.

The main supplier must notify Eskom prior to appointing contractors or suppliers for the commencement of work.

Returnable documents:

• Annexure B: Acknowledgement Form for Eskom OHS legal and other requirements (document 240-77471499 Rev 3) — must be completed, signed by an authorised person (CEO/Director/Managing Director) and witnessed by two witnesses.
• The signed form must be submitted with the bid.

Bidders must comply with Eskom's OHS requirements. Non-compliance may result in penalties. The main supplier is accountable for managing its contractors and suppliers, and must demonstrate the process and selection criteria used when appointing them. Eskom may request testimonials/references and client contact details for similar work.

The tender is for the design, manufacture, testing, supply and delivery of a Medium Voltage Induction Motor to Tutuka Power Stations, for a once-off purchase.

Compliance with the following OHS documents is required:

• Eskom Contractor Health and Safety requirements standard 32-136
• OHS specification/requirements provided
• Occupational Health and Safety Act
• Compensation for Occupational Diseases and Illnesses Act

After contract award, the supplier must align its processes with Eskom's OHS requirements.

All employees (contractors/suppliers) must undergo the relevant Eskom induction.

Penalties will be enforced on the main supplier for non-conformance with Eskom and/or statutory OHS requirements.

The supplier/contractor/tenderer must comply with Eskom's OHS requirements, including Eskom contractor Health and Safety requirements standard 32-136, the OHS specification/requirements provided, the Occupational Health and Safety Act, and the Compensation for Occupational Diseases and Illnesses Act. After contract award, the supplier is responsible for aligning company processes with Eskom's OHS requirements. Penalties will be enforced on the main supplier for non-conformance with Eskom and/or statutory OHS requirements. All employees (contractors/suppliers) must undergo relevant Eskom induction. The main contractor/supplier must demonstrate the process and selection criteria for appointing contractors/suppliers, notify Eskom prior to appointment, ensure contractors/suppliers have adequate resources and competencies, and is accountable for managing contractors/suppliers to ensure legal and Eskom requirements are met. The main supplier shall monitor contractors/suppliers through audits and assessments regarding OHS compliance during work execution. Grounds for termination of work by contractors/suppliers shall be provided by the main supplier. Non-conformances by contractors/suppliers (all tiers) will be dealt with directly with the main contractor/supplier regarding performance and penalty processes. Eskom reserves the right to verify this when deemed necessary and may request testimonials/references and contact details of clients for similar work.

The main supplier must:

• Demonstrate to Eskom the process and selection criteria applied when appointing contractors and suppliers.
• Notify Eskom prior to the appointment of contractors or suppliers for the commencement of work.
• Ensure that contractors/suppliers have adequate resources and competencies.
• Be accountable for managing its contractors/suppliers to ensure compliance with applicable legal and Eskom requirements.
• Monitor contractors/suppliers through audits and assessments regarding OHS compliance during work execution.
• Provide grounds for termination of work done by contractors/suppliers.
• Deal with all non-conformances/non-compliance by contractors/suppliers (all tiers) directly with the main contractor/supplier in terms of performance and penalty processes.
• Eskom reserves the right to verify this when deemed necessary and may request testimonials/references and contact details of clients for similar work.

Returnable documents:

• E-Tendering Training Acknowledgement Form (Annexure): must be fully completed, signed by an authorised representative, and submitted to Eskom before the closing time. Failure to submit the form will render the bidder non-responsive and disqualified.

The E-Tendering Training Acknowledgement Form is a mandatory returnable prior to e-tendering. It must be fully completed and submitted to Eskom within the prescribed period. Failure to do so will render the tenderer non-responsive and disqualified from the procurement process.

Submission of the fully completed E-Tendering Training Acknowledgement Form (Annexure) prior to the closing time is mandatory. The form must be signed by an authorised representative. Failure to submit the form will result in disqualification.

Returnable documents:

• Form A (Tender & Contract Quality Requirements): must be completed, signed and returned to acknowledge and accept Eskom's Supplier Quality Requirements (specification 240-105658000) and ISO 9001 standard. This is a mandatory precondition.
• No other returnable forms are listed in the document.

The only stated precondition for award is acceptance of Eskom's Supplier Quality Requirements and ISO 9001 standard, evidenced by a signed Form A. No scoring split, preference point system, or minimum qualifying score is stated.

Scope: Design, manufacture, testing, supply and delivery of a Medium Voltage Induction Motor to Tutuka Power Station, for a once-off purchase.

Quality category: Category 3 (pre-contract award quality requirements) applies, per clause 3.5 of specification 240-105658000.

Post-contract award conditions apply: Contract Execution, Supplier Quality Performance Monitoring, Eskom Rights of Access, Eskom Rights to Information, Preservation, Quality Audits, Management of Nonconformities, and Special Processes (clauses 3.7 and 3.8 of specification 240-105658000).

ISO 9001:2015 clauses 4 to 10 and quality management principles 1 to 7 are applicable.

The tenderer must comply with ISO 9001 clauses 4 to 10 (Context of the Organisation, Leadership, Planning, Support, Operation, Performance Evaluation, Improvement) and the seven quality management principles (Customer focus, Leadership, Engagement of people, Process approach, Improvement, Evidence-based decision making, Relationship management).

Pre-contract award quality requirements: Category 3 selected (refer to clause 3.5 of specification 240-105658000). Main Supplier and Sub-supplier Capability and Capacity Assessment not selected. Post-contract award conditions: Contract Execution, Supplier Quality Performance Monitoring Phase, Eskom Rights of Access, Eskom Rights to Information, Preservation, Quality Audits Related Conditions, Management of Nonconformities and Nonconforming Outputs Identified by Eskom, and Special Processes (refer to clauses 3.7 and 3.8 of specification 240-105658000). ISO 9001 clauses 4-10 and quality management principles 1-7 are applicable.

No specific eligibility criteria (e.g., CSD registration, tax clearance, B-BBEE level, CIDB grading) are stated in the document. The only stated precondition is acceptance of Eskom's Supplier Quality Requirements and ISO 9001 standard via signed Form A.

Design, manufacture, testing, supply, and delivery of a medium voltage induction motor for the Overland Coal Conveyor at Tutuka Power Station. The motor is a 300 kW, 3.3 kV, 50 Hz unit, with detailed technical specifications covering driven load requirements, power supply, operating conditions, electrical details, thermal details, mechanical details, painting, dimensions, and documentation requirements.

Returnable documents: complete and submit the Technical Schedule A & B for the Medium Voltage Induction Motor, including all required drawings and curves. The supplier must provide after contract award: motor outline drawing, power winding schematic diagrams, auxiliaries schematic diagrams (PT100s, thermistor, heaters), torque-speed curves at 100%, 85%, and 75% voltage, current-speed curves, efficiency and power factor vs load curves, and thermal limit curves.

Bidders must complete the technical schedule (Schedule A & B) and provide all required documentation. No specific pre-qualification thresholds (e.g., CSD, tax clearance, B-BBEE level) are stated in the provided document. Bidders must comply with the Eskom specification 240-57617975 for power supply and the applicable Eskom standard 240-50237155 for vibration and noise limits. The motor must be manufactured to SANS 60034 standards.

Supply and delivery of a 300 kW, 3.3 kV, 50 Hz medium voltage induction motor for the Overland Coal Conveyor at Tutuka Power Station.

• Application: Overland Coal Conveyor
• Rated output power: 300 kW
• Supply voltage: 3,300 V (3.3 kV ± 5% normal, ± 10% abnormal)
• Frequency: 50 Hz (± 2% normal, ± 2% for 80 minutes abnormal)
• Full load current: 64 A
• Rated speed: 1481 RPM
• Winding connection: Star
• Duty class: S1 per IEC 60034-1
• Efficiency: 95.0% at 100% loading, 94.5% at 75%, 93.0% at 50%
• Power factor: 85% at 100% loading, 83% at 75%, 80% at 50%
• Full load torque: 1935 Nm
• Locked rotor torque: 1935 Nm
• Pull up torque: 1935 Nm
• Breakdown torque: 3869 Nm
• Locked rotor current: 384 A
• Stator winding insulation class: F (minimum)
• Stator winding temperature rise: 80 K (maximum class B)
• Motor life expectancy: greater than 20 years
• Enclosure: IP 55
• Cooling method: IC611, CACA
• Bearings: Rolling element, grease lubricated, lubrication interval ≥ 4000 hours, bearing life ≥ 100,000 hours
• Frame size: 355
• Mounting: IM 1001 (horizontal foot-mounted)
• Shaft rotation: Bi-directional
• Starting method: Direct-on-line (DOL)
• Number of starts: 2 from hot, 3 from cold within an hour
• Space heaters: Installed, 220 V AC
• Surge suppressors: Required, dry type, 1 per phase
• Stator winding embedded temperature detectors: 3-wire PT100 RTDs, 2 per phase
• Bearing temperature detectors: Type-K thermocouples, 1 per bearing
• Dial type temperature indicators: Yes, for bearings, range 0-120
• Vibration and noise limits per Eskom Standard 240-50237155
• Motor must fit on existing base
• Maximum motor mass: 3 tons
• Maximum overall dimensions: height 1400 mm, length 2100 mm, breadth 1500 mm
• External final color coding: BS 381 Code G29 (Grey)
• Paint: Standard finish, 2 anti-rust primer coats
• Operating conditions: altitude 1626 m, normal daily max temp 26°C, min 4°C, extreme max 40°C, min 0°C, dusty environment, indoor
• Power supply transients: complete loss for 0.2 s, voltage depression to 85% for up to 60 s, to 75% for up to 1 s

The supplier must provide performance guarantees including full load torque 1935 Nm, locked rotor torque 1935 Nm, pull up torque 1935 Nm, breakdown torque 3869 Nm, and power factor at 50% loading 80%. Thermal details such as run-up times at various voltages, hot locked rotor times, and maximum hot acceleration times must be provided by the supplier.

The motor must comply with SANS 60034 and Eskom Standard 240-50237155. Stator winding insulation class F (minimum), temperature rise class B (80 K). Motor life expectancy greater than 20 years.

No specific financial requirements (e.g., bid bond, guarantees, payment terms) are stated in the provided document.

No specific compliance requirements (e.g., CSD, tax clearance, B-BBEE level, CIDB grading) are stated in the provided document. The motor must comply with SANS 60034 and Eskom Standard 240-50237155.

The motor must be designed, manufactured, tested, supplied, and delivered to Tutuka Power Station. The supplier must provide all required drawings and curves after contract award, including motor outline drawing, power winding schematic diagrams, auxiliaries schematic diagrams, torque-speed curves at 100%, 85%, and 75% voltage, current-speed curves, efficiency and power factor vs load curves, and thermal limit curves.

The motor must fit on the existing base. Maximum motor mass 3 tons, overall height 1400 mm, length 2100 mm, breadth 1500 mm. External final color coding BS 381 Code G29 (Grey).

No additional evaluation criteria are stated beyond the technical schedule compliance.

Eskom Holdings SOC Ltd invites tenders for the Design, Manufacture, Testing, Supply and delivery of a Medium Voltage Induction Motor to Tutuka Power Station, for a once-off purchase.

Tender number: E3565GXMPTUT

Issue date: 22 September 2026

Closing date and time: 08 October 2026 at 10:00

Tender validity: 120 days from closing.

Closing date: 08 October 2026 at 10:00 (SAST)

Clarification meeting (non-compulsory):

• Date: 29 September 2026
• Time: 10:00 to 12:00
• Venue: MS Teams
• Link: https://teams.microsoft.com/meet/348908082932155?p=oygRCqY40VBmS5Q7nA
• If difficulty joining, email [email protected] for the link.

Clarification queries deadline: 5 working days before the tender closing date.

Eskom Representative (all queries and clarifications):

• Name: Nancy Tshwenyane
• Telephone: 017 612 6427
• Email: [email protected]

Fraud and corruption reporting:

• Telephone: 0800 11 2722
• Email: [email protected]

Submission: via Eskom E-Tendering site (no physical address provided).

Submission method: electronic only via the Eskom E-Tendering site (Eskom Tender Bulletin). No hard copies accepted.

File requirements:

• All documents in PDF format; the price list must also be submitted in Excel format.
• Upload limit: 50 MB per file, 900 MB total per submission.
• No ZIP or compressed files.
• Label files under the folders: Commercial, Technical, SHEQ, and Finance.
• If resubmitting, the latest version is accepted; previous submissions become null and void.
• Ensure the submission status is marked complete.

Returnable forms (mandatory at closing unless noted):

• Annexure A: Authorisation Form – authorises the signatory to bind the bidder.
• Annexure B: Acknowledgement Form – acknowledges receipt and understanding of the tender.
• Annexure C: Tenderer's Particulars – bidder identity and contact details.
• Annexure D: Integrity Pact Declaration – commits to ethical conduct; read the Supplier Integrity Pact.
• Annexure E: CPA Requirements for Local Goods/Services – proposed price adjustment formula (if not proposed, price is fixed and firm).
• Annexure F: CPA(IG) for Foreign Goods/Services (if applicable).
• Annexure G1–G4: SBD 6.2 Declaration for Local Production and Content (only if designated materials are included).
• Annexure H: SBD 1 Invitation to Bid – completed and submitted by all tenderers.
• Annexure I: SBD 6.1 Preference Points Claim Form (PPPFA 2022) – required for evaluation; if not submitted, scores zero for specific goals.
• Annexure J: SBD 4 Bidders Disclosure – discloses any interest or connection with the state.
• Tax Evaluation Questionnaire – to determine if the entity is a personal service provider for PAYE.
• E-tendering Help Manual acknowledgement form.

Disqualification risks:

• Missing or unsigned mandatory returnables at closing.
• Late submission – late tenders are not accepted.
• Submitting more than one tender (unless as a JV partner with a valid JV agreement).
• Conflict of interest, being on the Tender Defaulters list, or restricted by Eskom or National Treasury.
• Subcontracting 100% of the scope of work.
• Tenders signed by non-authorised persons.

Mandatory at closing (disqualifiable): Annexure A (Authorisation), Annexure B (Acknowledgement), Annexure C (Tenderer's Particulars), Annexure D (Integrity Pact Declaration), Annexure E (CPA for local goods/services), Annexure F (CPA for imported goods/services, if applicable), Annexure G1–G4 (SBD 6.2 local content declarations), Annexure H (SBD 1), Annexure J (SBD 4).

Non-disqualifiable but required: Annexure I (SBD 6.1 Preference Points Claim), Tax Clearance Certificate (if applicable), Tax Evaluation Questionnaire, Employment Equity proof (if designated employer), NEC contract, Pricing Schedule, CSD registration proof, COIDA certificate, Quality documents (QMS, Contract Quality Plan, QCP/ITP), Health and Safety documents (H&S plan, baseline risk assessment, OHS policy, etc.), Environmental documents (Annexure B, Environmental Management Plan, SHEQ policy), Financial statements for due diligence, and Technical Evaluation Strategy documents.

Evaluation stages:

1. Basic compliance – eligibility, complete submission, mandatory returnables.
2. Functionality/Technical evaluation – minimum weighted score of 80% required to be considered functionally acceptable.
3. Price evaluation – scored out of 80 points.
4. Specific goals (PPPFA) – scored out of 20 points.
5. Ranking – total of price and specific goals, using the 80/20 system.

Technical evaluation:

• Mandatory criteria: submit completed Schedule B of Technical Schedule A&B, Outline Drawing, Thermal Limit curves per IEEE 620, and Torque/Current vs Speed curves at 100%, 85%, and 75% of rated voltage. Each design must be electrically and mechanically interchangeable with the existing motor without plant modification.
• Qualitative criteria scored 0, 2, 4, or 5 per item, weighted and expressed as a percentage.
• Minimum threshold: 80% (higher than the standard 70%).

Price evaluation:

• Prices inclusive of VAT, corrected for arithmetic errors, excluding contingencies, adjusted for variations, and compared on Net Present Value.
• Unconditional discounts count; conditional discounts apply only at payment.

Specific goals:

• Maximum 20 points under the 80/20 system.
• Points by B-BBEE level: Level 1 = 20, Level 2 = 18, Level 3 = 14, Level 4 = 12, Level 5 = 8, Level 6 = 6, Level 7 = 4, Level 8 = 2, Non-compliant = 0.
• Failure to submit evidence for a specific goal results in 0 points for that goal, not disqualification.

Objective criteria may be a condition for award; failure may lead to the second-ranked tenderer being recommended.

Reverse e-auction is not applicable.

Scope: Design, manufacture, testing, supply and delivery of a Medium Voltage Induction Motor to Tutuka Power Station, once-off purchase.

Mandatory technical requirements:

• Submit completed Schedule B of Technical Schedule A&B, Outline Drawing, Thermal Limit curves per IEEE 620, and Torque/Current vs Speed curves for each tendered design at 100%, 85%, and 75% of rated voltage.
• Each design must be electrically and mechanically interchangeable with the existing motor without plant modification.

Quality requirements (per QM58 and ISO 9001:2015):

• Provide quality returnables per Cat 3:
• Section A: QMS Manual, Quality Policy, Quality Objectives, control of documented information, control of nonconforming outputs, nonconformity and corrective action, internal audit.
• Section B: Organisation chart and responsibility matrix, control of externally provided processes.
• Section C: Draft Contract Quality Plan (per ISO 10005).
• Section D: Quality Control Plan / Inspection and Test Plan (ITP).
• Section E: Completed and signed Form A, plus any other requirements.

Environmental requirements:

• Signed Annexure B acknowledging Eskom's SHE rules.
• Environmental Management Plan covering waste management, environmental incident management, and emergency planning for environmental incidents.
• Signed Environmental SHEQ policy.

Supplier must conform to QM58 – Supplier Quality Management Specification and ISO 9001:2015.

Quality returnables per Cat 3:

• Section A: QMS Manual, Quality Policy, Quality Objectives, control of documented information, control of nonconforming outputs, nonconformity and corrective action, internal audit.
• Section B: Organisation chart and responsibility matrix, control of externally provided processes.
• Section C: Draft Contract Quality Plan (per ISO 10005).
• Section D: Quality Control Plan / Inspection and Test Plan (ITP).
• Section E: Completed and signed Form A, plus any other requirements.

Pricing Schedule/BOQ must be submitted in PDF and Excel format.

Upload limit: 50 MB per file, 900 MB total per submission.

Prices scored out of 80 points.

Local procurement content is total spending minus the imported component.

Payment terms:

• Contracts below R50 million (incl. VAT): payment within 30 days of receipt of undisputed invoices.
• Contracts above R50 million (incl. VAT): payment within 60 days of receipt of undisputed invoices.

Pricing schedule:

• Must be submitted in PDF and Excel format.
• Upload limit: 50 MB per file, 900 MB total.
• Prices scored out of 80 points.

Financial due diligence (required at closing):

• Audited/Independent reviewer's/Accounting Officer's/Compiler's report.
• Signed Director's/Member's report.
• Annual Financial Statements (Statement of Financial Position, Statement of Comprehensive Income, Statement of changes in equity, Notes).
• If not audited: ITA 34C Income Tax Assessment and Public Interest Score (PIS).
• Reports must be valid and within 18 months after year end per Section 30 of the Companies Act. Outdated or draft statements are not acceptable.

No bid security or performance guarantee is required.

Eligibility:

• Must not be under any restriction to do business with Eskom or State-Owned Companies.
• Must not have nationality of a country on international sanctions lists.
• Must not have a conflict of interest.
• Must not be on the Tender Defaulters list or restricted by National Treasury or Eskom.
• Must not subcontract 100% of the scope.

Mandatory contractual requirements:

• Proof of valid CSD registration (CSD number/CSD report).

Tax compliance:

• Tax clearance certificate required if not on CSD or no SARS PIN provided.
• Foreign suppliers with no SA footprint must complete SBD 1; no tax compliance proof required.

B-bbee:

• Proof of B-BBEE status level certificate or sworn affidavit required to claim preference points.
• Specific goals points per B-BBEE level (see evaluation criteria).

Employment Equity:

• Designated employers (SA tenderers) must provide proof of compliance, including submission of the EE report to the Department of Labour.

Coida:

• Original certificate of good standing or proof of application from the Compensation Fund (SA tenderers only).

CIDB: Not applicable.

CSDG and CPG: Not applicable.

Specific Goals: Maximum 20 points under PPPFA 80/20 system.

Points by B-BBEE level: Level 1 = 20, Level 2 = 18, Level 3 = 14, Level 4 = 12, Level 5 = 8, Level 6 = 6, Level 7 = 4, Level 8 = 2, Non-compliant = 0.

Documents required to claim preference points: valid B-BBEE certificate or sworn affidavit, proof of ownership/shareholding, certified ID copies, proof of disability, consolidated certificate for trusts/JVs.

B-BBEE improvement or retention plan required within 30 days of contract signing.

Local procurement content requirements apply.

NIPP applicable for contracts with imported content of USD 5 million or more.

OHS minimum requirements:

• Annexure B (acknowledgement of Eskom's SHE rules)
• Health and Safety plan / OHS manual
• H&S costing
• Baseline OHS risk assessment
• Valid letter of good standing (LOGs)
• OHS policy (signed)
• Proof of OHS competency

COIDA: Original certificate of good standing or proof of application (SA tenderers only).

Conditions of contract: NEC Supply Contract (SC3) with options X2 (Changes in the law), X7 (Delay damages), X17 (Low-performance damage), and Z (Additional conditions).

Mandatory contractual requirements: proof of CSD registration. Additional may include SHEQ requirements and financial viability.

Contractual requirements assessed after evaluation and ranking.

Payment terms: below R50 million – 30 days; above R50 million – 60 days.

Eskom reserves right to negotiate with preferred bidders if prices not market related.

Eligibility criteria:

• Must not be under any restriction to do business with Eskom or State-Owned Companies.
• Must not have nationality of a country on international sanctions lists.
• Must not submit more than one tender (unless as a JV partner with a valid JV agreement).
• JV/consortium agreement must state joint and several liability.
• Must not have a conflict of interest.
• Tenders must be signed by authorised persons.
• Must not be restricted by National Treasury or on the Tender Defaulters list.
• Must not be restricted by Eskom.
• Must not subcontract 100% of the scope of work.

Functionality requirements are applicable. Minimum weighted final score (threshold) for technical perspective is 80%.

Prices evaluated inclusive of VAT, corrected for arithmetic errors, excluding contingencies, adjusted for variations, and compared on Net Present Value. Prices scored out of 80 points.

Specific goals scored out of 20 points in accordance with PPPFA. Ranking by 80/20 system.

Objective criteria may be a condition for contract award. Reverse e-auction not applicable.

The procurement is for a medium voltage induction motor for the DCW pump at Tutuka Power Station, for a once-off purchase. The motor is to be designed, manufactured, tested, supplied and delivered.

The department requires the design, manufacture, testing, supply and delivery of a medium voltage induction motor for the DCW pump at Tutuka Power Station. The motor is for a turbine plant application.

Key technical requirements:

• Rated output power: 215 kW
• Supply voltage: 3.3 kV ± 5% (normal), 3.3 kV ± 10% (abnormal)
• Frequency: 50 Hz ± 2%
• Full load current: 43 A
• Rated speed: 991 RPM
• Winding connection: Star
• Duty class: S1 (continuous)
• Efficiency: 95% at 100% load, 94.5% at 75% load, 93% at 50% load
• Power factor: 84% at 100% load, 82% at 75% load, 78% at 50% load
• Full load torque: 2,072 Nm
• Locked rotor torque: 1,865 Nm
• Pull up torque: 1,865 Nm
• Breakdown torque: 4,558 Nm
• Locked rotor current: 255 A
• Insulation class: F (minimum), temperature rise class B (max 80 K)
• Enclosure: IP55
• Cooling: IC 411, TEFC (totally enclosed fan cooled)
• Bearings: Ball and roller, grease lubricated, lubrication interval ≥ 4000 hours, bearing life > 100,000 hours
• Vibration sensors: Yes (SPM nipples)
• Insulated bearings: Yes
• Frame size: 355
• Mounting: IM 1001 (horizontal foot-mounted)
• Rotation: Bi-directional
• Space heaters: Installed, 220 V AC
• Stator winding: Form-wound, VPI impregnation
• Rotor: Fabricated copper, single cage
• Motor life expectancy: > 20 years
• Maximum motor mass: 2 tons
• Maximum overall dimensions: height 1100 mm, length 1890 mm, breadth 1250 mm
• Paint finish: G29 Grey, BS 381 code, with more than 2 anti-rust primer coats
• Number of starts: 2 hot starts per hour, 3 cold starts per hour
• Applicable standards: SANS 60034, Eskom Standard 240-50237155
• Operating altitude: 1626 m above sea level
• Ambient temperature range: 4°C to 26°C normal, 0°C to 40°C extreme
• Environment: Indoor, dusty, medium base vibrations
• Starting method: Direct-on-line (DOL)
• Stopping method: Coast to stop
• Drive coupling: Direct
• Driven load: DCW pump, with power and torque vs speed characteristics to be provided
• Required documentation: Motor outline drawing, winding schematic diagrams, torque-speed curves at 100%, 85% and 75% voltage, current-speed curves, efficiency and power factor vs load curves, thermal limit curves (to be provided after contract award where indicated)

The motor must have a life expectancy of more than 20 years. The supplier must provide the fabrication factory name. The motor must comply with SANS 60034 and Eskom Standard 240-50237155. The supplier must provide detailed electrical parameters (resistances, reactances, X/R ratio, slip, temperature) as specified in the technical schedule. The supplier must provide run-up times, locked rotor times, acceleration times, thermal time constants, and number of starts per hour as specified. The supplier must provide mechanical details including bearing sizes, lubricant grade, rotor moment of inertia, motor total mass, and heat exchanger weight. The supplier must provide documentation including motor outline drawing, winding schematic diagrams, torque-speed curves, current-speed curves, efficiency and power factor curves, and thermal limit curves.

The motor is for a DCW pump application in a turbine plant. The driven load requirements include power and torque vs speed characteristics, power required at duty point, speed at duty point, load moment of inertia, required starting torque, rated load torque, maximum permissible start-up and deceleration times, maximum axial thrust, shaft rotation, bearing type (roller), lubrication type (grease), area classification (non-hazardous), indoor/dusty environment, starting method (DOL), stopping method (coast to stop), and direct coupling. The power supply is 3.3 kV ± 5%, 50 Hz ± 2%, with voltage unbalance up to 2% and harmonic distortion ≤ 5%. Abnormal supply conditions include voltage ±10%, frequency ±2% for 80 minutes, voltage unbalance up to 3%, and V/F ratio ≤ 1.1. Transient conditions include complete loss of supply for 0.2 seconds, voltage depression to 85% for up to 60 seconds, and to 75% for up to 1 second. Operating conditions: altitude 1626 m, normal daily max temp 26°C, min 4°C, extreme max 40°C, min 0°C, medium base vibrations. Motor general: SANS 60034, Eskom Standard 240-50237155, life expectancy > 20 years. Electrical details: 215 kW, 3,300 V, 50 Hz, 43 A, 991 RPM, star connection, S1 duty, utilization factor 75-90%. Performance guarantees: full load torque 2,072 Nm, locked rotor torque 1,865 Nm, pull up torque 1,865 Nm, breakdown torque 4,558 Nm, locked rotor current 255 A, efficiency 95%/94.5%/93% at 100%/75%/50% load, power factor 84%/82%/78% at 100%/75%/50% load. Thermal details: insulation class F, temperature rise class B (80 K), 2 hot starts/hour, 3 cold starts/hour. Mechanical details: VPI impregnation, form-wound stator, fabricated copper rotor, single cage, IP55, IC 411, TEFC, ball and roller bearings, grease lubrication, lubrication interval ≥ 4000 hrs, bearing life > 100,000 hrs, vibration sensors (SPM nipples), insulated bearings, frame size 355, bi-directional rotation, space heaters 220 V AC. Station limitations: max mass 2 tons, max height 1100 mm, max length 1890 mm, max breadth 1250 mm. Painting: G29 Grey, BS 381, >2 anti-rust primer coats. Documentation: outline drawing, winding schematics, torque-speed curves at 100%/85%/75% voltage, current-speed curves, efficiency/power factor curves, thermal limit curves.

Eskom requires the design, manufacture, testing, supply and delivery of Medium Voltage Induction Motors to Tutuka Power Stations, for a once-off purchase. The goods are five motor types (all 3300V): Over silo conveyor 525kW 4-pole, DCW Motor 215kW 6-pole, Overland Conveyor 300kW 4-pole, Ash Extendible/CPP 315kW 4-pole, and Electric Compressor 350kW 3-pole.

Contacts: not stated in the document.

Purchaser address: Eskom Holdings SOC Ltd, Megawatt Park, Maxwell Drive, Sandton, Johannesburg, 2199.

Delivery place: Tutuka Power Station Stores - Main Stores.

Returnable documents:

• C1.1 Form of Offer and Acceptance: signed offer committing the bidder to the contract terms, with the offered total price (excl. VAT), VAT at 15%, and total incl. VAT.
• C1.2a Contract Data provided by the Purchaser: completed by Eskom.
• C1.2b Contract Data provided by the Supplier: bidder completes its details, tendered total, price schedule reference, delivery date, and overhead/profit percentage.
• C2.1 Pricing assumptions: read and accept the pricing basis.
• C2.2 Price Schedule: complete rates and prices for each motor line item.
• C3.1 Purchaser's Goods Information: technical specification and scope.
• C3.2 Supplier's Goods Information: bidder's design and technical submissions.
• Schedule of Deviations: any deviations from the tender documents must be listed here; only these are valid.

Submission method and address: not stated in the document.

Disqualification risks:

• Failure to provide securities, bonds, guarantees, proof of insurance, or other required documentation within two weeks of receiving the completed agreement constitutes repudiation.
• Any deviation not recorded in the Schedule of Deviations is invalid.

Evaluation stages:

• Technical evaluation by Eskom Engineering during the tender phase, including a detail design freeze before manufacturing.
• The supplier must visit the site to confirm interchangeability and provide a report before design freeze acceptance.
• Manufacturing may only commence after Tutuka power station engineering accepts the detail design and QCPs/ITPs.
• Factory acceptance testing (FAT) and performance/type tests must be conducted and witnessed per motor design; each motor requires a routine test witnessed before dispatch.
• Final dispatch inspection is conducted by power station personnel.

Preference point system: not stated in the document.

Scope: Design, manufacture, testing, supply and delivery of Medium Voltage Induction Motors to Tutuka Power Stations, for a once-off purchase.

Goods (5 motor types, all 3300V):

• Over silo conveyor: 525 kW, 4 pole, quantity 6, stock number 179030.
• DCW Motor: 215 kW, 6 pole, quantity 2, stock number 140719.
• Overland Conveyor: 300 kW, 4 pole, quantity 2, stock number 179080.
• Ash Extendible/CPP: 315 kW, 4 pole, quantity 4, stock number 179361.
• Electric Compressor: 350 kW, 3 pole, quantity 4, stock number 249410.

Design and manufacturing requirements:

• Comply with Eskom standard 240-50237155 Rev-4 for Induction motors.
• Supplier must provide outline drawings, technical schedule B, performance and protection curves, interchangeability report, QCPs, and other design information per the standard.
• Manufacturing only after detail design and QCPs/ITPs are accepted by Tutuka engineering.
• Motors must be exactly the same part number as specified; the part number is used for quality control checks.
• Supplier is responsible for verifying correctness of motor information against the existing installed motor.
• Data pack must include test certificates, all manuals, and maintenance schedules.

Delivery requirements:

• Delivery place: Tutuka Power Station Stores - Main Stores.
• Transport by road at Supplier's cost; delivery times 08:30 to 15:30 Mondays to Thursdays, 08:30 to 11:30 Fridays; no weekend or public holiday deliveries except emergencies.
• End user informed at least 2 days before delivery.
• Delivery date as per the order.

Methodology and programme:

• First programme submitted within 1 week of contract start; revised programmes every 2 weeks.
• Supply under INCOTERMS 2010, Delivery Cost Included (DCI) to Employer's stores.
• Supplier responsibilities: give notice of delivery, check packing and marking before dispatch, contract for transport, pay transport costs (included in tendered rates), load goods, and for international procurement undertake export and import requirements.
• Purchaser arranges access to delivery place and unloads goods at its site.
• Supplier provides packing lists, copy of invoice, delivery note, test results and maintenance manuals, and import documents as required.

Quality requirements:

• Comply with Eskom standard 240-50237155 Rev-4 for Induction motors.
• Supplier must provide quality control procedures (QCPs) accepted by Eskom before work begins.
• Data pack must include test certificates, all manuals, and maintenance schedules.
• Supplier must supply additional information such as brochures, general arrangement drawings, certificates, and detailed specifications.
• Supplier must verify information in data capturing forms (DCF) at least three months after order placement or a week before delivery if lead time is less.
• Preservation and storage procedures must be supplied where applicable.
• Motors must be exactly the same part number as specified; part number used for quality control checks.

Price Schedule (C2.2) items:

1. Over silo Conveyor 525kW 4-pole 3300V, EA, quantity 6.
2. DCW Motor 215kW 6-pole 3300V, EA, quantity 2.
3. Overland Conveyor 300kW 4-pole 3300V, EA, quantity 2.
4. Ash Extendible/CPP 315kW 4-pole 3300V, EA, quantity 4.
5. Electric Compressor 350kW 3-pole 3300V, EA, quantity 4.

Pricing assumptions:

• Prices are amounts stated in the price column of the Price Schedule.
• Amount due calculated per clause 50.2 (lump sums plus quantity × rate).
• Price Schedule is only a pricing document, not Goods Information.
• Supplier may insert additional items.
• Total of Prices is fully inclusive.
• No adjustment to lump sum prices if quantities differ; only compensation events change prices.
• Supplier does not have to allow for compensation events in prices.

Pricing format:

• Priced contract under NEC3 Supply Contract; prices are lump sums or quantity × rate as per the Price Schedule (C2.2).
• Total of Prices is fully inclusive of everything necessary to provide the goods and services.
• No adjustment to lump sum prices if quantities differ; only compensation events per clause 60.1 change prices.
• Supplier must include costs for correction of defects (no compensation event unless due to Supplier's risk).
• Supplier may add additional items to the price schedule.

Payment terms:

• Assessment upon safe delivery, meeting all required standards, and signed off.
• Payment within 4 weeks after delivery.
• Currency: South African Rand.
• Interest on late payment at the publicly quoted prime rate of Standard Bank (or LIBOR for other currencies).
• Tax invoice must be provided within one week of receiving a payment certificate; include Eskom's VAT number 4740101508.

Liability and damages:

• Delay damages: 1% of task order value per day, maximum 10% of purchase/task order value; once maximum reached, Eskom may terminate.
• Low performance damages: 2% of purchase order value for failure to meet design performance; 0.5% per day (max 10%) for late technical documentation; 0.5% per day (max 10%) for failure to correct defects; 2% per occurrence (max 10%) for packaging/preservation non-compliance.
• Supplier's liability for indirect/consequential loss: R0.00.
• Supplier's total liability limited to purchase order value.
• End of liability date: 52 weeks after delivery.

Insurance:

• Supplier must provide insurances per Insurance Table A (loss/damage to goods, property liability, bodily injury).
• Purchaser provides insurances per Insurance Table B (all risk, contract works, environmental, public liability, marine, motor fleet, terrorism, cyber, nuclear).

B-bbee:

• Minimum level: 2 (from analysis; not confirmed in document text).
• Any change in B-BBEE status must be notified to Eskom within 7 days; updated verification certificate within 30 days.
• If B-BBEE status decreases, Eskom may renegotiate or terminate the contract.

General:

• Law of contract: Republic of South Africa.
• Language: English.
• No cession, delegation or assignment without written consent.
• Joint ventures are jointly and severally liable; key person with authority to bind must be notified within two weeks of contract date.
• No prohibited actions (coercive, collusive, corrupt, fraudulent, obstructive); termination for breach.
• Compliance with health, safety and environmental laws.
• Asbestos: Purchaser ensures ambient air conforms to standards; Supplier may stop work if unsafe; removal by registered contractor at Purchaser's expense.

B-BBEE requirements:

• Minimum level: 2 (from analysis; not confirmed in document text).
• Any change in legal status, ownership, or business composition affecting B-BBEE status must be notified to Eskom within 7 days.
• Updated verification certificate and supporting documentation must be submitted within 30 days of notification.
• If B-BBEE status decreases, Eskom may renegotiate or terminate the contract.
• Failure to notify may constitute a reason for termination.

Health and safety obligations:

• Supplier must take all reasonable precautions to maintain health and safety of persons.
• Prices include sufficient amount for compliance with health & safety laws and regulations.
• Supplier must comply with all applicable health & safety laws and ensure subcontractors and employees do likewise.
• Asbestos: Purchaser ensures ambient air conforms to South African standards (OEL 0.2 fibres/ml as 4-hour TWA; short-term 0.6 fibres/ml as 10-minute TWA).
• Supplier may perform parallel measurements at its own expense.
• If asbestos is identified, risk assessment and control measures are implemented.
• Supplier's personnel may stop work and leave contaminated area until declared safe.
• Removal and disposal of asbestos is done by a registered asbestos contractor instructed by the Purchaser at Purchaser's expense.

Environmental obligations:

• Supplier must comply with all applicable environmental laws and regulations and ensure subcontractors and employees do likewise.
• Asbestos management: Purchaser manages asbestos and ACM according to the Standard; if asbestos is identified, risk assessment and control measures are implemented; removal and disposal by registered contractor at Purchaser's expense.

Contract: NEC3 Supply Contract (April 2013) with core clauses and options X2 (changes in law), X7 (delay damages), X17 (low performance damages), and Z1 to Z15 (additional conditions).

Key terms:

• Law: Republic of South Africa; language: English; period for reply: 2 days.
• Starting date: to be confirmed; delivery date as per order.
• Programme: first programme within 1 week of contract start; revised programmes every 2 weeks.
• Defects date: 12 months after installation; defect correction period: 3 days (24 hours for performance-affecting defects, 12 hours for safety-threatening defects); defects access period: 1 day.
• Payment: assessment upon safe delivery and sign-off; payment within 4 weeks; interest at prime rate.
• Compensation events: spares or tasks not in scope.
• Supplier's liability: indirect/consequential loss limited to R0.00; total liability limited to purchase order value; end of liability 52 weeks after delivery.
• Termination and dispute: per NEC3 SC; adjudicator from ICE-SA panel, appointed by AFSA if not agreed; arbitration in South Africa under Association of Arbitrators rules.
• Delay damages: 1% per day to max 10%; then termination possible.
• Low performance damages: as specified (2% for design performance failure, 0.5% per day for late documentation, 0.5% per day for defect correction failure, 2% per occurrence for packaging non-compliance).
• Z1: no assignment without consent.
• Z2: joint ventures jointly and severally liable; notify key person.
• Z3: B-BBEE status change notification within 7 days; updated certificate within 30 days; possible renegotiation or termination.
• Z4: confidentiality; images require consent.
• Z5: waiver and estoppel.
• Z6: health, safety and environment compliance.
• Z7: tax invoice within 1 week of payment certificate; VAT number 4740101508.
• Z8: compensation event notification.
• Z9: Purchaser's liability for indirect/consequential loss limited to R0.00.
• Z10: termination for business rescue.
• Z11: termination if delay damages reach limit.
• Z12: ethics - no prohibited actions; termination for breach.
• Z13: insurance per Tables A and B.
• Z14: nuclear liability - Purchaser indemnifies Supplier against nuclear damage at Koeberg.
• Z15: asbestos - Purchaser ensures safe ambient air; Supplier may stop work if unsafe; removal by registered contractor at Purchaser's expense.

Eskom Engineering conducts a technical evaluation during the tender phase and a detail design freeze before manufacturing. The supplier must visit the site to confirm interchangeability and provide a report before design freeze acceptance. Manufacturing inspection, factory acceptance testing, and performance/type tests are part of technical assurance.

Tutuka Power Station requires new Medium Voltage (MV) Induction Motors as a once-off purchase. The existing motors have been in operation for over 25 years, exceeding their design life of 20–25 years, and are experiencing high premature failures and high maintenance costs. The motors are used in critical systems such as the conveyor system and electrical compressor system. The scope includes design, manufacture, testing and installation witnessing of the new motors.

Returnable documents — all must be submitted in both hardcopy and softcopy, adequately referenced:

• Completed Technical Schedule B of Technical Schedule A&B (Eskom Standard 240-54783039).
• Dimensioned preliminary outline drawing.
• Torque versus Speed curves for each tendered motor design at 100%, 85%, and 75% of rated voltage.
• Current versus Speed curves for each tendered motor design at 100%, 85%, and 75% of rated voltage.
• Thermal Limit curves at 100%, 85%, and 75% of rated voltage.
• Delivery Period list.
• Deviation schedule.

Disqualification risks:

• Any mandatory criterion (I1–I2) assessed as 'NO' disqualifies the design from further evaluation.
• Failure to provide the manufacturing factory name and documents for assessing compliance with mandatory criteria.
• Subcontracting of the manufacturing facility.
• Deviations that lead to non-interchangeability (electrical or mechanical).

Evaluation stages:

1. Mandatory technical evaluation (criteria I1–I2) — a 'NO' on any criterion disqualifies the design.
2. Qualitative technical evaluation — scored per design.

Scoring method: each item scored 0, 2, 4 or 5 (no 1 or 3).

• 5 = Compliant, no foreseen technical risks.
• 4 = Compliant with acceptable risks/exceptions/conditions.
• 2 = Non-compliant with unacceptable risks/exceptions/conditions.
• 0 = Totally deficient or non-responsive.

Minimum qualifying score: 80% weighted final score (higher than the standard 70%).

Qualitative criteria weightings (Induction Motors):

• IQ.1 Tendered Motor Design Accessories: 15%
• IQ.2 Tendered Motor Design Type: 15%
• IQ.3 Tendered Motor Design Performance: 25%
• IQ.4 Tendered Motor Design Capabilities: 40%
• IQ.5 Tender Quality & Delivery Period: 5%

Scope: Design, manufacture, testing and installation witnessing of new Medium Voltage (MV) Induction Motors for Tutuka Power Station, on a once-off purchase.

Background: Existing MV motors have exceeded their design life (20–25 years) and are experiencing high premature failures and high maintenance costs. Motors are used in critical systems such as the conveyor system and electrical compressor system.

Mandatory technical requirements (per tendered motor design):

• Submit completed Schedule B of Technical Schedule A&B, outline drawing, Thermal Limit curves per IEEE 620, and Torque and Current versus Speed curves at 100%, 85%, and 75% of rated voltage.
• Each design must be electrically and mechanically interchangeable with the existing motor without plant modification.

Qualitative technical criteria (with sub-weightings):

• IQ.1 Accessories: temperature detectors, water ingress detectors (for CACW motors), protection components (CTs, speed sensing, anti-surge), condition monitoring equipment (PD, vibration sensors).
• IQ.2 Design Type: enclosure type, cooling method, rotor type (preferable single fabricated copper vs dual cage and aluminium), wedge type (preferable epoxy glass vs magnetic), equivalent circuit parameters.
• IQ.3 Performance: high operating efficiency at 75% load, high operating power factor at 75% load, maximum winding operating temperature at 100% load.
• IQ.4 Capabilities: locked rotor current, locked rotor torque, breakdown torque, thermal limits to operating curves margins.
• IQ.5 Tender Quality & Delivery Period: delivery period and deviations.

No specific bidder experience or key personnel qualifications are stated in the document.

Mandatory technical compliance (per design):

• Submit completed Schedule B of Technical Schedule A&B, outline drawing, Thermal Limit curves per IEEE 620, and Torque and Current versus Speed curves at 100%, 85%, and 75% of rated voltage.
• Each design must be electrically and mechanically interchangeable with the existing motor without plant modification.

Acceptable technical risks:

• Tendering without conducting a site visit for items whose outline drawings and/or mounting dimensions have been provided by Eskom.

Unacceptable technical risks:

• Designs with unconfirmed size and suitability to application and site operating conditions.
• Mandatory criteria not evaluated and/or satisfied.

Acceptable exceptions/conditions:

• Declining to provide technical details deemed intellectual proprietary.

Unacceptable exceptions/conditions:

• Failure to provide manufacturing factory name and documents for assessing compliance with mandatory criteria.
• Subcontracting of manufacturing facility.
• Deviations that lead to non-interchangeability (electrical or mechanical).

The contract is expected to follow the NEC Contract MV Motors. Normative references include:

• 240-168966153: Generation Technical Tender Evaluation Procedure
• 240-50237155: New MV Motor Procurement Standard
• 240-54783039: New MV Motor Technical Schedule A&B
• 240-138203748: MV Synchronous Motor Technical Schedule AB Template
• NEC Contract MV Motors

Qualitative technical evaluation: each item scored 0, 2, 4 or 5. Minimum weighted final score required for a design to be considered functionally acceptable is 80%. Scoring definitions: 5 = compliant, no foreseen risks; 4 = compliant with acceptable risks/exceptions/conditions; 2 = non-compliant with unacceptable risks/exceptions/conditions; 0 = totally deficient or non-responsive. Criteria weightings: IQ.1 Accessories 15%, IQ.2 Design Type 15%, IQ.3 Performance 25%, IQ.4 Capabilities 40%, IQ.5 Tender Quality & Delivery Period 5%.