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Hi Guys, recently installed a new radial socket circuit from CU.
When ramp testing 30ma RCD at unit, without loads, everything was fine. When I energised the circuit and tested again, the furthest two sockets failed the x5 test giving a 40ms reading. Other sockets on the same circuit came in fine. It's a TT system. So was wondering what the likely cause of the failure x5 would be. Could it be higher resistance due to cable length, or something else?
Thanks in advance for your thoughts.
When ramp testing 30ma RCD at unit, without loads, everything was fine. When I energised the circuit and tested again, the furthest two sockets failed the x5 test giving a 40ms reading. Other sockets on the same circuit came in fine. It's a TT system. So was wondering what the likely cause of the failure x5 would be. Could it be higher resistance due to cable length, or something else?
Thanks in advance for your thoughts.