Room Resilience and Continuity

The question is not whether the room has a UPS. It is how long it holds at today's load, and what happens in minute thirty-one.

Control rooms grow. Two positions become six, a second wall goes in, and the UPS that was sized at handover is now carrying a load nobody recalculated. In most Indian cities the changeover to generator power happens often enough that the UPS carries the room several times a month. The figure in the O&M manual and the figure on the meter are rarely the same number.

Failure behaviour is stated for each path. Mains fails, the UPS carries the measured load for its tested hold time and the generator picks up within a stated time. A processing path faults, switchover holds output automatically. The primary network path drops, the secondary carries a named subset of feeds and the operator is told which ones are missing. Every one of those has a manual fallback and a contracted time to service.

Where SECCOM stops. The building's generator, cooling plant and incoming supplies belong to facilities. SECCOM states the load, the run time and the ride-through the room requires, and designs to what the building can actually deliver.