- Reaction score
- 5,468
Yes, that's pretty much it. Basically, a P/L which keeps the battery charged. However, should the RCBO trip, the emergency option is triggered, and the luminaire stays lit, on battery power. They have an LED on the frame which shows green when all is well and the battery is charging, and red when in emergency mode. Thus, when the luminaire is switched off, at the switch, the battery is still being kept on charge. Tripping the RCBO simulates a loss of power. That is how it is tested, instead of having a key switch in the circuit.