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RCBO's and IR testing

Jaymack
I have had a problem with 5 off Wylex RCBO's. These were bought by a houseowner and fitted by him as there was no RCD protection for some circuits requiring such. These Wylex RCBO's have a warning hidden on the body that connections should be disconnected for Insulation Testing ..........too late the man cried!. For expediency and availability, I have redesigned the arrangement to have MCB's with a common RCBO as a M.S..

I have been in contact with Wylex technical help, who say that they should have been OK to withstand 250V IR testing as in this case, but to return them to the dealer. Anyone else have had similar problems?


Jaymack .
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    Yep ins res test whether RCD or not. If practical a Live to Live is a good idea but if not practical then a Live(s) to E test as a minimum on a periodic. Initial testing should always include all though. If the chappy testing is also the installer then not a problem
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    Yep ins res test whether RCD or not. If practical a Live to Live is a good idea but if not practical then a Live(s) to E test as a minimum on a periodic. Initial testing should always include all though. If the chappy testing is also the installer then not a problem
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