Have fitted an MK garage consumer unit today. 40A/30mA RCD model with 2 MCBs, 16A + 6A. Have wired 6A to two flourescent tubes in parallel via a simple indoor metal case switch. Have dummy wired one double socket merely as a test after lighting kept tripping when switched turned on. No matter what I plug in the main RCD trips out as soon as there is load througb the socket as well. I suspect I have a feed problem. Unit is connnected to spare way on fairly old Wylex main unit in house using 6mm T&E. MCB in main unit is 32A - this is not tripping. I suspect that I may have mis-wired the incoming feed from the house CU where it arrives at the garage CU. I have it earthed to the earthing bar in the MK garage unit, top right. Live feed from house runs into the top right connection on the MK RCD. Neutral from the main CU runs into the neutral bus bar above the RCD in the garage unit. Should I be running this neutral feed directly into the RCD instead? If so where?
Cheers in advance for any answers which get me nearer the holy grail of a wired up garage!
Cheers in advance for any answers which get me nearer the holy grail of a wired up garage!