Maintenance Log

Mains power failure — switched to generator mode. Eskom confirmed Stage 4 load shedding in area.

Phase L2 voltage drop to 225.4V. Investigated supply-side issue at Eskom transformer.

Tenant Cell C cassette showing intermittent breaker trips. Replaced Cassette #3 with refurbished unit.

Quarterly preventive maintenance inspection. Visual check of all cassettes, cable service loop, vault seal, and telescopic rail lubrication.

Firmware update for Acrel ADW300 meter and all 4 cassette ASCB1-63 MCBs via RS485 Modbus.

New tenant Rain onboarding. Install new cassette in Slot 4 with 63A allocation.

Door sensor false alarm. Investigated cabinet door mechanism and magnetic reed switch.

Annual vault integrity inspection. Check waterproofing membrane, gravel soakaway, sump pump, and concrete condition.