annual maintenance of 220v dc buses and modules, in unit -iii at 13.5 mtr. floor, carrying out the capacity test in 220v dc, 1500ah battery related works and cleaning of fly ash and coal dust in the cable, cable trays in and around unit-iii tg area (from mc pump area to tg floor area) during the annual overhauling of unit-iii for the year 2026-2027.
