P
Piratepete
Hi Guys
Semi detached with 16th Ed box. Upstairs and downstairs lights on seperate ccts and mcbs
Just extended the downstairs lighting cct into a conservatory and fitted an RCBO after checking (not very well, it seems) whether the landing light was on a borrowed neutral. All tested Ok. All lights worked.
A couple of days later, customer rings to say that RCBO sometimes trips when the landing light is switched on. Seems landing light is a 7 watt CFL which equates to about 30mA.
When I explained the problem and the mess I was going to make either to feed an upstairs live to the downstairs switch or a downstairs neutral to the pendant, he thought a bit and says 'no problem - I'll fit a 3watt LED bulb and it'll never trip - go away!' So I do making a mental note to check landing light ccts more thoroughly.
Couldn't think of a suitable reply! Can you?
Pete
Semi detached with 16th Ed box. Upstairs and downstairs lights on seperate ccts and mcbs
Just extended the downstairs lighting cct into a conservatory and fitted an RCBO after checking (not very well, it seems) whether the landing light was on a borrowed neutral. All tested Ok. All lights worked.
A couple of days later, customer rings to say that RCBO sometimes trips when the landing light is switched on. Seems landing light is a 7 watt CFL which equates to about 30mA.
When I explained the problem and the mess I was going to make either to feed an upstairs live to the downstairs switch or a downstairs neutral to the pendant, he thought a bit and says 'no problem - I'll fit a 3watt LED bulb and it'll never trip - go away!' So I do making a mental note to check landing light ccts more thoroughly.
Couldn't think of a suitable reply! Can you?
Pete