Been to a pub today.
They could not turn off the outside lights. The outside lights are fed via an 18 way grid switch and consist of a handful of emergency maintained fittings and a handful of 70w SON wall washers.
First obvious test - check the switch module in the grid is actually switching. It was. With the 'out' disconnected from the switch, the 'out' terminal switched on and off as it should. The cable feeding the lights remained live.
Guess the fault.....
They could not turn off the outside lights. The outside lights are fed via an 18 way grid switch and consist of a handful of emergency maintained fittings and a handful of 70w SON wall washers.
First obvious test - check the switch module in the grid is actually switching. It was. With the 'out' disconnected from the switch, the 'out' terminal switched on and off as it should. The cable feeding the lights remained live.
Guess the fault.....