Supply and installation of battery charger cabinet and transformer magnetic oil gauge

Closing date and time: 20 October 2026 at 10:00.

No briefing, site visit or clarification deadline is stated in the document.

No named contacts, telephone numbers, email addresses, or physical submission address are stated in the document.

Service delivery locations:

• Langlaagte Signal cabin distribution substation.
• Germiston Rhino distribution substation.

Returnable documents:

• CIDB grading schedule: proof of CIDB 1EP or higher.
• Technical functionality schedule: evidence of organisational experience and key staff qualifications.

Submission method: not stated in document.

Closing: 20 October 2026 at 10:00.

Disqualification risks:

• Missing or unsigned returnable schedules.
• Failure to meet minimum 70 points on technical functionality.
• Use of subcontractors without prior PRASA Project Manager approval.

Evaluation stages: technical functionality only (no price/preference split stated).

Scoring (100 points total):

• Organisational experience: 50 points.

• Based on successfully completed similar projects in maintenance or repair of power transformers rated 500 kVA and above in the last 10 years.

• 0 projects or incomplete submission: 0 points.

• 1 project: 10 points; 2 projects: 20 points; 3 projects: 30 points; 4 projects: 40 points; 5 or more projects: 50 points.

• Required evidence per project: appointment letter on company letterhead, project description, client name, client contact (email and office number), project start and end dates, extension of time where applicable, contract value inclusive of VAT. Also attach completion certificate signed by client or client letter confirming successful completion.

• Qualifications and technical experience of key staff: 50 points.

• Based on CVs of site supervisor and electrician only.

• Average years of experience of key staff in maintenance and/or repair of power transformers rated 500 kVA and above:

• No information or incomplete: 0 points.

• Less than 5 years: 10 points.

• 5 to 8 years: 20 points.

• Above 8 to 10 years: 30 points.

• 10 to 15 years: 40 points.

• 15 years or more: 50 points.

• Required evidence: certified copies of original qualifications and professional body certificates (commissioner of oath stamp dated within 3 months before closing date). SAQA-accredited qualifications required. Site supervisor: C-green, A-red or A-brown certificate. Electrician: trade test certificate.

Minimum qualifying score: 70/100.

No preference point system (80/20 or 90/10) is stated. No B-BBEE, CSD, tax clearance or local content requirements are stated.

Scope: supply, delivery, installation, testing and commissioning of electrical equipment at two PRASA distribution substations.

Item 1 — Battery charger cabinet (Langlaagte Signal cabin distribution substation)

• Supply and install sealed batteries and battery charger units per specification CEE 0085.
• Sealed type batteries per clause 6.2.2 of CEE 0085.
• Supply voltage: 110V DC (12V per cell).
• Battery capacity: minimum 26 Ah.
• Charger: minimum 10 A.
• Contractor responsible for all connections to interface with existing equipment.

Item 2 — Transformer magnetic oil gauge (Germiston Rhino distribution substation)

• Supply and install oil level indicator for main conservator.
• Flange dimensions: outer diameter 156 mm, mounting hole diameter 130 mm, mounting flange opening diameter 100 mm, 6 x M10 mounting holes.
• Transformer rating: 3 MVA, 44/±2×2.5%/11/6.6 kV, Dyn11.

Testing and commissioning:

• Pre-commissioning tests by contractor after installation.
• Final commissioning tests by designated PRASA personnel with contractor.
• Contractor to carry out any remedial work.
• Handover per portion when electrical system is tested and commissioned to satisfaction of Technical Manager.

Site care:

• Contractor takes full responsibility for care of works, employer's assets, plant and materials from site handover to certificate of completion.

Key personnel required:

• Site supervisor: permit work signed by authorised representative with C-green, A-red or A-brown certificates.
• Electrician: trade test certificate.
• Construction health and safety officer: minimum 3 years industry experience, recognised OHS qualification, registered with SACPCMP.

Contractor to provide:

• Site books in triplicate (incidents, progress, technical instructions).
• All machinery, equipment, materials, labour, consumables.
• Conformance documentation for each material item.
• Transport, tools, supervision, protection, labour.

Excavation and cable protection:

• Verify service positions before construction.
• Advise PRASA technical officer at least 7 days before excavating near any cable.
• No mechanical excavation within 3 m of estimated cable position; hand excavation under supervision if required.

Subcontracting:

• Prior written permission from PRASA Project Manager required for any subcontractor.

Contractor performs pre-commissioning tests after installation. PRASA personnel then conduct final commissioning tests with contractor present. Contractor undertakes any remedial work required.

Key personnel required:

• Site supervisor: C-green, A-red or A-brown certificate.
• Electrician: trade test certificate.
• Construction health and safety officer: minimum 3 years industry experience, recognised OHS qualification, SACPCMP registration.

Organisational experience: proven similar projects on power transformers 500 kVA and above in last 10 years. Full documentation required per project including client confirmation of successful completion.

Contractor responsible for care of works, employer's assets, plant and materials from site handover to certificate of completion. Sub-standard work must be rectified at contractor's cost within 7 working days; failure may result in National Treasury reporting and blacklisting. Handover per portion upon successful test and commissioning to Technical Manager's satisfaction.

Firm fixed rates for BOQ items:

• Battery and charger complete: 1 each.
• Transformer magnetic oil gauge complete: 1 each.
• Testing and commissioning at Langlaagte: 1 sum.
• Testing and commissioning at Germiston Rhino: 1 sum.
• VAT at 15%.

Monthly progress payments based on assessed quantities. Contractor submits VAT invoice with Progress Assessment Certificate. Electronic payment.

Pricing format: firm fixed rates for duration of contract. Bill of quantities with unit rates.

BOQ items:

• Item 1: Supply, deliver and install battery and charger complete — 1 each.
• Item 2: Supply, deliver and install transformer magnetic oil gauge complete — 1 each.
• Item 3: Testing and commissioning at Langlaagte signal cabin distribution substation — 1 sum.
• Item 4: Testing and commissioning at Germiston Rhino distribution substation — 1 sum.
• VAT at 15% applies.

Payment terms:

• Monthly payment claims.
• Payment for fully functional equipment only; rejected and incomplete work not paid.
• All-inclusive unit rates; no escalation claims permitted.
• 10% retention on all invoices, payable at end of 52-week guarantee period from handover date.
• Preliminaries prorated to value of work executed.
• Contractor submits VAT invoice with Progress Assessment Certificate for payment.
• Electronic payments; contractor to provide banking details.

Contract period:

• Delivery, installation, plus minimum one year from date of acceptance of last unit.
• Normal servicing costs stated separately, paid quarterly during service period.

Penalties for delay:

• 0.05% of contract price per delayed day per order (clause 18.1).
• Alternative rate of 0.3% per delayed day per order also stated (clause 6.3).
• Maximum penalty in either case: 10% of contract price.
• Penalties may be set off against fees due.

No bid security, performance bond, or insurance requirements are stated.

CIDB: Grade 1EP or higher required.

Professional registrations and qualifications:

• Site supervisor: C-green, A-red or A-brown certificate.
• Electrician: trade test certificate.
• Construction health and safety officer: SACPCMP registration.

Safety compliance:

• Occupational Health and Safety Act, 1993 compliance.
• Approved safety file kept on site for project duration.
• Detailed safety plan submitted upon award.
• Site access certificate issued only after safety file evaluation and approval.
• Safety representative always on site.
• Incident reporting: death or injury within 24 hours; other incidents within 48 hours.
• Compliance with Metrorail safety requirements and E7/1 Specification.
• SPK 7/1 and E4E requirements applicable for work on, over or adjacent to railway lines.

Vehicle and operator requirements:

• Valid driver's licences and public driving permits where applicable.
• Crane operators: valid crane operator's certificate.
• All vehicles roadworthy.
• Protective clothing and equipment provided by contractor.
• Harnesses for employees climbing structures.

No CSD registration, tax clearance status, B-BBEE level, local content percentage, or CIPC requirements are stated in the document.

OHS Act 1993 compliance mandatory. Approved safety file on site throughout project. Detailed safety plan required upon award; site access certificate issued only after safety file approval. Safety representative always present. Incident reporting: death or injury within 24 hours; other incidents within 48 hours. Compliance with Metrorail safety requirements, E7/1 Specification, SPK 7/1 and E4E for railway-adjacent work. All protective clothing and equipment provided by contractor. Harnesses for climbing work. Valid licences, PDPs and crane operator certificates required. Roadworthy vehicles.

Contract period includes delivery, installation and minimum one year from acceptance of last unit.

Payments monthly for fully functional equipment only. 10% retention held until 52 weeks after handover. Preliminaries prorated to work executed. No escalation claims permitted.

Delay penalties: 0.05% of contract price per delayed day per order (maximum 10% of contract price). PRASA may set off penalties against amounts due.

Contractor liable for damage to PRASA property or third parties. Subcontractors require prior PRASA Project Manager approval.

No subcontracting without prior written permission from PRASA Project Manager.

CIDB Grade 1EP or higher mandatory. Technical functionality schedule must demonstrate organisational experience and qualified key staff.

Technical functionality evaluation only, minimum 70/100 points required to proceed.

Organisational experience (50 points): completed similar projects maintaining or repairing power transformers of 500 kVA and above within last 10 years. Evidence per project: appointment letter, description, client name and contact, dates, contract value with VAT, plus completion certificate or client confirmation letter.

Key staff qualifications (50 points): CVs of site supervisor and electrician only. Average years of relevant experience determines score. Certified qualifications required (commissioner of oath stamp within 3 months of closing date). SAQA-accredited qualifications. Site supervisor: C-green, A-red or A-brown. Electrician: trade test certificate.