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Hi In a new build flat we have just purchased there is a spilt CU with two RCDs each with their own MCBs One both sides (ie both RCDs) there are MCBs marked as Lights, and Sockets Should the marking not identify which circuits are covered (ie which rooms) or is this lack of detail OK to...

Due to faults / issues found on house CU (bypassed RCD and radial / ring-main circuits (all in 2.5mm2) on one 32A MCB for example) the CU has been changed to a high integrity metal Wylex with a mixture of RCD and RCBO protected circuits One of the RCD protected MCBs feeds (via SWA cable) to an...