Design, supply, install, commission and support private 5g mobile voice network at matla power station (mpumalanga) – replacing nec/philips is3000 dect system

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Evaluation will assess the bidder's capability as Design Authority for Private 5G systems in industrial/hazardous environments; compliance with Generation Cyber Security Compliance Standard (240-129014618); ability to supply equipment meeting IP65, MIL-STD-810H, IEC 61000-4-2, and hazardous area certifications; competent personnel for high-risk industrial installation per OHS Act and Matla Plant Safety Regulations (240-150642762).

Factory Acceptance Testing (FAT) must demonstrate: core network functionality, call setup, call routing, registration of test devices; redundancy failover with defined recovery time; voice quality MOS ≥3.0; PABX SIP interface functionality; network management system alarm generation, logging, and monitoring.

Site Integration and Acceptance Testing (SIT/SAT) must include: RF coverage walk test with RSRP measurements at defined test points (minimum RSRP target to be agreed); voice quality test MOS ≥3.0 at minimum 10 test points including worst-case areas; call setup and routing tests for all call types; PABX integration test; handover/roaming test; redundancy test with call continuity; cybersecurity configuration review; minimum 72-hour continuous operation monitoring.

SIT/SAT test procedure must be submitted to Eskom C&I Engineering for approval at least 10 working days before testing commences.

Scope: Design, supply, install, commission, and support a Private 5G mobile voice communication system at Matla Power Station, Mpumalanga, replacing the existing NEC/Philips iS3000 DECT system with minimum equivalent operational capability per ROC Document 559-792846344. Contractor acts as Design Authority; Eskom C&I Engineering reviews and approves all design submissions.

Site survey and RF propagation study covering all operational areas: Main Control Room, North/South Satellite Control Rooms, Turbine Hall (all levels), Boiler area (all levels, platforms, burner decks), Coal Bunker floor, coal handling areas, Coal Staithe, conveyor areas, Ash handling plant, Water Treatment Plant, workshops, stores, maintenance areas, Administration block, gatehouse, underground cable tunnels, Units 1-6, Outside Plant Area, Slurry Plant, MainGate security offices, Fire Station, Technical Training, Ash Resources, Coal Plant, Admin Building, Site Canteen, Engineering Offices, Rotek Building, ABB Offices, Simulator Building, Strategic Stores 1, Contractor Yard. Survey must address heavy steel structures, thick concrete, EMI from transformers/motor drives/switchgear/MV-HV equipment. Deliverables: coverage simulation maps, proposed base station locations with justification, minimum RSRP targets per area. Report submitted for Eskom approval before network design finalisation.

5G Core Network: 5G SA or NSA core (Contractor to recommend), active/standby 1+1 redundancy, SMF, AMF, associated core elements, voice application server with PTT and standard voice, SIP gateway/trunk for PABX (HiCOM 300 series) integration, network management system with local dashboard, minimum 400-user licence, rack/mounting/patching infrastructure, UPS/backup power interface per Electrical LDE design. Core equipment located in designated communications room (Eskom to confirm location). System availability ≥99.99% per annum.

Radio Access Network: Base stations per approved site survey/design, IP65 minimum, operating temperature -20°C to +60°C, EMC compliance IEC 61000-4-2 (ESD), 24/7 continuous operation. Hazardous area certification where applicable (Contractor to confirm classification with Eskom). Cabling routed via existing/new containment per approved drawings and SANS 10142-1. Civil/structural works coordinated with Civil LDE.

PABX Integration: SIP trunk to HiCOM 300 series enabling calls between 5G handsets and fixed extensions, external Eskom voice networks, public networks (MTN, Vodacom, Telkom); call history logging; extension number storage/retrieval; compatibility with future SIP-based PABX replacement. All telephony configurations coordinated with Eskom Telecoms/NTCSA; no PABX modifications without written approval. Call routing test covering all call types.

User Equipment: Minimum 400+ handsets per ROC 559-792846344, suitable for power station environment: minimum IP rating, operating temperature range, MIL-STD-810H or equivalent, PTT capability, MCX/MCPTT support, battery life requirements. Supply, provision, configure all SIM cards. Minimum 5 test SIM cards for acceptance testing. Extension numbering plan and SIM provisioning procedure for onboarding/replacing/reassigning handsets. Full integration with 5G network and MCPTT/PTT services. Handset costs included in pricing.

OT Cybersecurity: Dedicated isolated communication platform; no direct IP routing between 5G core and OT networks (DCS, SCADA, historian, protection). Cybersecurity architecture document detailing: network segmentation, VLAN isolation, firewall zones; SIM-based device authentication; end-to-end encryption of signalling and user data; controlled remote access; security monitoring/logging/reporting. Document reviewed/approved by Eskom Station Cybersecurity Representative before installation. Compliance with Generation Cyber Security Compliance Standard (240-129014618).

Parallel Operation: Existing DECT system remains fully operational throughout installation/commissioning. No disconnection/modification/interference without written authorisation. Formal cutover only after: written acceptance certificate, minimum 5 working days parallel operation, all users briefed. DECT decommissioning excluded from scope.

FAT: Conducted on core network equipment prior to delivery. Eskom representative invited to witness; Eskom bears travel costs. FAT report with procedures, results, discrepancies, retests, certificate submitted for acceptance.

SIT/SAT: After installation/commissioning. Test procedure submitted 10 working days prior. Final report submitted; acceptance issued after all results confirmed satisfactory.

Applicable standards: 240-56227443 (Control/Power Cables), 240-109607332 (Plant Labelling), OMOP 4497 (Quality Requirements), OMOP 2721 (Limited Access), OMOP 2975 (PPE Policy), QM58 (Quality Management), OMOP 2332 (Equipment Room Access), 240-132190480 (Telecoms Equipment Installation), ST_240-75975613 (Telecoms Cabinet Installation), 240-76666863 (Telecoms Network Architecture), Concept Design Report 559-5466408, ROC 559-792846344, 240-129014618 (Cyber Security).

Contractor responsible for drawing up all Quality Control Plan (QCP) documentation; must be approved by Engineering and authorised by Quality Department before work commences. Adherence to QM 58 and OMOP 4497 requirements. Number of Non-Conformance Reports (NCRs) issued can affect future tendering. QCP signed progressively by Engineer/Supervisor, Eskom QC Inspector, Contractor QC Inspector, and/or AIA. No procurement of outage items without scope approval by Quality. All scope creep and additions require Quality approval. No contractor may hold scopes for execution without Quality approval. Contractor subject to quality auditing at any point during execution. Data books, reviews, reports, diagrams/drawings submitted to Engineering after completion; Engineering forwards to Quality Department (Document Control). All QCPs submitted to Engineering and Quality for approval prior to outage/project/maintenance work. FAT and SIT/SAT test procedures and reports form part of quality deliverables.

Occupational Health and Safety: Health and safety file approved by Safety Risk Management department before work commences. All work per OHS Act, Matla plant procedures, Plant Safety Regulations (240-150642762). Matla SHEQ induction mandatory before site access. Employees must have required competency for tasks. Compliance with updated legal requirements. BUY QUIET principle encouraged.

Environmental Management: Environmental authorisation required before work commencement per National Environmental Act and EIA Regulations. Compliance with all applicable legal requirements. Polluter pays principle. Compliance with Eskom Matla Environmental procedures (OMOP 4090, 4402). Final payment linked to housekeeping check sheet (Annexure C: OMOP 4402). EMS file based on ISO 14001 required.

Quality Management: Contractor responsible for all QCP documentation; approved by Engineering and authorised by Quality Department before work commencement. Adherence to QM 58 and OMOP 4497. NCRs may affect future tendering. QCP signed progressively by Engineer/Supervisor, Eskom QC Inspector, Contractor QC Inspector, and/or AIA. No procurement of outage items without scope approval by Quality. Scope creep/additions require Quality approval. No contractor holds scopes for execution without Quality approval. Subject to quality auditing at any time.

Data books, reviews, reports, diagrams/drawings submitted to Engineering after completion; Engineering forwards to Quality Department (Document Control). All QCPs submitted to Engineering and Quality for approval prior to outage/project/maintenance work.

Health and safety file must be approved by Safety Risk Management department before any work commences on site. All work performed in accordance with OHS Act, Matla plant procedures, and Plant Safety Regulations (240-150642762). Matla Power Station SHEQ induction mandatory before site access. Contractor must ensure all employees have required competency for their tasks. Compliance with updated legal and other requirements. BUY QUIET principle: stakeholders encouraged to purchase/rent quieter machinery, equipment, and tools to reduce noise exposure and risk of noise-induced hearing loss. RAN equipment for hazardous areas must meet applicable hazardous area certification requirements; Contractor to confirm area classification with Eskom prior to equipment selection.

Environmental authorisation required before commencement of work for all activities listed in the National Environmental Management Act and EIA Regulations as amended. Contractor must comply with all applicable legal and other requirements. Polluter pays principle applies. Contractor manager must ensure compliance with Eskom Matla Environmental procedures to prevent pollution (refer OMOP 4090 and 4402). Final payment processed based on status of last housekeeping check sheet (Annexure C: OMOP 4402) of designated area. Environmental Management System (EMS) file based on ISO 14001 required.

Evaluation criteria derived from acceptance testing requirements: Factory Acceptance Testing must demonstrate core network functionality, call setup, call routing, device registration; redundancy failover with defined recovery time; voice quality MOS ≥3.0; PABX SIP interface functionality; network management system alarm generation, logging, monitoring. Site Integration and Acceptance Testing must include RF coverage walk test with RSRP measurements at defined test points (minimum RSRP target agreed with Eskom); voice quality MOS ≥3.0 at minimum 10 test points including worst-case areas; call setup and routing for all call types; PABX integration test; handover/roaming test; redundancy test with call continuity; cybersecurity configuration review; minimum 72-hour continuous operation monitoring. SIT/SAT test procedure must be submitted for approval at least 10 working days before testing. Acceptance issued after all test results confirmed satisfactory. Bidder capability as Design Authority for Private 5G in industrial/hazardous environments, compliance with Generation Cyber Security Compliance Standard, equipment certifications (IP65, MIL-STD-810H, IEC 61000-4-2, hazardous area), and competent personnel per OHS Act and Matla Plant Safety Regulations are implied pre-qualification requirements.