Central Battery System (Emergency Lighting)

An emergency lighting supply system in which a single central battery/inverter installation, typically located in a separate room, supplies multiple emergency luminaires throughout the building via a dedicated, certified (e.g. fire-resistant) cable network, as opposed to a system with individual batteries per luminaire. A central system enables centralised testing, monitoring, and battery management and typically offers a longer service life for the battery components than distributed local batteries, but requires fire-resistant cable penetrations and fire-resistant cabling to ensure supply during a fire. Both the central system and the individual luminaires must be periodically tested for function and autonomy time in accordance with NEN-EN 50172.