Quotation are invited for Service and Maintenance of MV Substations 1-4 Electrical Equipment for Durban ICC for a Period of 12 Months. Mandatory Scope of Work: 6.1 2-YEARLY CHECKS MV Panels Open MV panels and conduct the following: - Check cable connections - Test current transformers (CTs) and record findings - Clean all panels - Check insulation material condition and re-tape if necessary LV PANELS Open LV Panels and conduct the following: - Check all busbars and check all connections - Check insulation material condition and re-tape if necessary - able connections - Service master packs. this will include: o Full service of mechanism and lubrication o Conductor test (contact resistance test) o Test protection relay and record settings - Service LV breaker cradle 6.2 ANNUAL CHECKS MV BREAKERS Service MV Breakers. Service must include the following: - Arrange with eThekwini municipality electricity department to isolate MV incomer - Isolate withdrawable MV breakers - Clean the breaker mechanism with approved electrical cleaner - Perform a conductor (contact resistance) test on MV breakers - Conduct pressure tests on vacuum bottles - Lubricate MV breaker mechanism MV PANELS Service and clean MV panels. The process must include the following: - Clean MV panels and check wiring - Perform secondary injection test of the protection relays at settings (use eThekwini municipalitys electrical department standards) - Check all fuses and replace when necessary - Record all settings (do not change any settings unless authorised by Durban ICC representative) - Test all transformer protection relays and record test results RING-MAIN UNITS Service ring-main units. The process must include the following: - Opening of back cover and cleaning of the unit - Record all findings and provide report - Test feeder protection relays and record readings TRANSFORMERS Conduct oil sample analysis. The process must include the following: - KV water acid gas furan and Poly Chlorinated Byphenylis (PCB). This has to be analysed by a certified lab - After analysis, recommendations to be done on relevant action and quotes thereof - Testing and recording of results for the Bucholtz and temperature devices - Check and ensure that the system functionality and operation is correct. 6.3 QUARTERLY SERVICE DC TRIPPING UNITS IN MV SUBSTATIONS Service DC tripping units. The process must include the following: - Cleaning all cells - Top up cells with electrolyte - Record each cell voltage (charger in OFF position) - Lubricate cell links - Check all cell link connections - Record each cell voltage (charger in ON position) - Conduct final test and record final load test voltage. This service should be performed on the basis of eThekwini municipality electricity standards. 6.4 MONTHLY SERVICE TRANSFORMER ROOMS AND SUBSTATIONS Transformer rooms and substation service must include: - Cleaning all substations and transformer rooms - Paint floors and demarcate accordingly. - On arrival, ensure that all substations have log book. - Ensure trench covers are properly installed and there are no potential hazards. - Conduct secondary injection test on all relays TRANSFORMERS - Check protection relays for signs of alarms, trips or potential visual abnormalities and conditions. Closing Date: All bid submissions must be enclosed in a sealed envelope for the attention of the Procurement Department clearly marked with the RFQ/RFP reference number together with the description of the bid. These submissions are to be placed in the Tender Box at the Durban ICC security entrance on the ground floor, 45 Bram Fischer Road Durban before 12:00 on 9th July 2026. Submissions that are not sealed or not clearly marked as required, may be rejected. Tender Link : https://icc.co.za/careers-and-vendors/vendor-opportunities/
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