Objectives

The primary objective of this tender is to refurbish a 315 kVA pole-mounted transformer for the Bela Bela Local Municipality. The project aims to restore the asset to full operational capacity, ensure compliance with municipal and national electrical standards, improve grid reliability, and extend the equipment's service life through systematic maintenance and component replacement.

Scope

The scope centres on the complete refurbishment of a single 315 kVA pole-mounted transformer. While detailed task specifications are outlined in the full tender documentation, the work typically encompasses safe electrical isolation, removal or on-site dismantling, thorough inspection, replacement of degraded bushings, seals, terminals, and internal components, rewinding or repair of windings where necessary, comprehensive electrical testing, compliance certification, and secure reinstallation. All activities must align with municipal engineering specifications and national safety regulations.

Technical Requirements

• Contractors must hold a minimum CIDB contractor grading of 1EP or higher to qualify for submission.
• All refurbishment work must comply with South African National Standards (SANS) for electrical installations and transformer maintenance.
• Materials, spare parts, and testing equipment must be certified for medium-voltage applications and rated for outdoor, pole-mounted deployment.
• Strict adherence to occupational health and safety legislation for high-voltage work, working at heights, and manual handling is mandatory.
• Tenders must be delivered physically to the designated municipality records office before the closing deadline; emailed or late submissions will be rejected.

Skills Requirements

• Registered professional electricians and technicians with proven experience in medium-voltage transformer refurbishment and testing.
• Certified personnel skilled in conducting insulation resistance tests, turns ratio measurements, winding resistance checks, and dielectric strength testing.
• Trained workers competent in safe pole-climbing, rigging, crane operation, and heavy lifting procedures for transformer handling.
• Project coordination capability to manage municipal site access, inspection schedules, compliance reporting, and handover documentation.

Clarification of Specialised Terms

CIDB 1EP Grading: This designation refers to the South African Construction Industry Development Board (CIDB) contractor registration framework. The numeral “1” indicates eligibility for contracts within a specific low-value monetary threshold. The letter “E” categorises the contractor for electrical works, while “P” specifies pole-mounted infrastructure. A 1EP grading therefore certifies that a contractor possesses the financial capacity, technical competence, and experience to execute small-scale electrical projects involving pole-mounted assets such as distribution transformers.