A
Adrian Sadler
Out of practise spark here...
With the 17th edition board where its a 5+5 dual rcd, how do you wire a shed now?
If you connect from the mains board to a sub board in shed then theres no point using rcd in the sub board as its already protected at the mains and if you have 2 rcd in parallel then you cant achieve any discrimination so 4 other house circuits go off also.
How do you get around this? Ive never seen a 63*30ma time delay rcd myself and not sure you can use one in this insttance. One way is to fit a extra board via henley block just for the shed. Or maybe shorten thebusbar and have it as a standalone way fed direct from the main switch using a modular rcbo so its seperate but still complies.
Any other suggestions?
With the 17th edition board where its a 5+5 dual rcd, how do you wire a shed now?
If you connect from the mains board to a sub board in shed then theres no point using rcd in the sub board as its already protected at the mains and if you have 2 rcd in parallel then you cant achieve any discrimination so 4 other house circuits go off also.
How do you get around this? Ive never seen a 63*30ma time delay rcd myself and not sure you can use one in this insttance. One way is to fit a extra board via henley block just for the shed. Or maybe shorten thebusbar and have it as a standalone way fed direct from the main switch using a modular rcbo so its seperate but still complies.
Any other suggestions?
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