I have a circuit protected by a 6A RCD for all power to the outside of the house.
On this circuit are two security lights, a pond pump, and a pond UV light.
The external lights are via one switch inside the house, the pond equipment via another.
When the pond circuit is on at the switch, no problems, circuit stays on without issues.
When the lights are turned on, the circuit comes on OK, security lights come on, but a short time later (a couple of minutes after the security lights have timed out), the circuit will trip. I have disconnected the lights on at a time, but regardless of which light is left on, the circuit still trips. The circuit will trip regardless of whether the pond circuit is switched on or off.
Total load on the circuit (with everything on) is no more than 4A.
Any suggestions as to what the fault might be?
No work in the loft for a long time, so I've ruled out a crushed cable (am I right to do this?).
On this circuit are two security lights, a pond pump, and a pond UV light.
The external lights are via one switch inside the house, the pond equipment via another.
When the pond circuit is on at the switch, no problems, circuit stays on without issues.
When the lights are turned on, the circuit comes on OK, security lights come on, but a short time later (a couple of minutes after the security lights have timed out), the circuit will trip. I have disconnected the lights on at a time, but regardless of which light is left on, the circuit still trips. The circuit will trip regardless of whether the pond circuit is switched on or off.
Total load on the circuit (with everything on) is no more than 4A.
Any suggestions as to what the fault might be?
No work in the loft for a long time, so I've ruled out a crushed cable (am I right to do this?).