To fit a rcd for a shower unit can I use a supply from a storage heater fuse box as this is not used now dos the supply cable to the rcd have to be 10mm Thank you
Dave Crampton
February 2011
if you have a 17 edition db,then you may have a spare
place for a 40 to 45 amp breaker,if you have,then wire the shower to the rccd side of db.
mm
January 2011
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