Service and Repair of 50kva 11 Kv/400v Three Phase Transformer and Ht Switchgear at Grootvlei Prison Substation N0.7

ID-3236451

See details below or the tender documentation

Tender Closed on: 2026-03-30 11:00

Department of Public Works

1 EP

Electrical Equipment and Supplies, Electrical Services, Repair, Service and Maintenance of Machinery and Equipment, Transformer Supplies, Installation and Maintenance

Bloemfontein, Free State

Department of Public Works

Department of Public Works Tenders

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Submission At:

Quotation Documents may be Dropped at: Bid Box, National Department of Public Works and Infrastructure: 18 President Brand Street Bloemfontein OR Quotation Documents may be Posted to: Private Bag X20605, Bloemfontein, 9301

Tender Summary

Objectives

The primary objective of this tender is to procure services for the repair and maintenance of a 50kVA 11kV/400V three-phase transformer and associated high tension (HT) switchgear at Grootvlei Prison Substation No. 7. The aim is to ensure the reliable operation, safety, and efficiency of the electrical infrastructure at the specified site.

Scope

The scope of work includes:

  • Service and repair of a 50kVA three-phase transformer (11kV/400V)
  • Testing, inspection, and maintenance of HT switchgear (including oil circuit breakers and protection relays)
  • Replacement of transformer oil and silica gel breather
  • Cleaning and greasing contacts, arc chutes, and cubicles
  • Replacement of electrical components such as circuit breakers and control switches
  • Installation of LED lighting and safety lockout devices
  • Provision of necessary documentation, test results, and compliance certificates
  • Adherence to safety, quality, and technical standards as specified in the tender documents

Technical Requirements

The technical requirements specify that:

  • The contractor must have a CIDB grading of 1 EP or higher.
  • All electrical work must be performed by qualified and certified electricians.
  • Testing must comply with industry standards and include transformer oil analysis, insulation resistance testing, and protection relay testing.
  • Replacement oils and components must be SABS approved and compatible with existing equipment.
  • All work must meet the specifications outlined in the scope of work and relevant safety regulations.
  • Proper documentation, including test certificates, maintenance records, and compliance certificates, must be provided upon completion.

Skills Requirements

The successful bidder must demonstrate:

  • Experience in the maintenance and repair of high voltage electrical equipment, specifically transformers and switchgear.
  • Qualified personnel with valid electrical trade certificates and relevant industry certifications.
  • Proven track record of similar projects within the past 5 to 10 years, with contactable references.
  • Capability to perform testing, inspection, and maintenance according to industry standards.
  • Ability to provide comprehensive documentation, including test results, safety certificates, and compliance reports.
  • Knowledge of safety protocols and regulations related to high voltage electrical systems.
This summary is AI generated. Download the tender documents for all the information.

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