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EICR - main earth and neutral

Former Community Member
Former Community Member
Hi was conducting a EICR on a consumer unit today removed the cover and Main earth cable was 8 x single strand insulated cables istead of expected single 25mm also earth was the same??? it is in an apartment and has been running fine for

at least 20 years, just want to know what to input for csa?? and should I note it in observations under C3 CODE???? ANY ADVISE WELCOME THANKS
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    The BNO network is the responsibility of the landlord or owner of the building unless they have appointed a contractor to operate the network with all the responsibilities that entails. BNO network has to comply with BS 7671 which is why split concentric cables are used as concentric cables with a combined neutral and earth cannot be used. There are a lot of legacy installations out there that the DNOs used to own and operate. At one time the DNOs would not allow access to the Ryfield boards on pain of prosecution now if you call them and mention Ryfield boards the response is nothing to do with us! I have a big bunch of Ryfield keys none of which fit the lock I am trying to open. I have only one of the 4 Ryfield master keys.
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    The BNO network is the responsibility of the landlord or owner of the building unless they have appointed a contractor to operate the network with all the responsibilities that entails. BNO network has to comply with BS 7671 which is why split concentric cables are used as concentric cables with a combined neutral and earth cannot be used. There are a lot of legacy installations out there that the DNOs used to own and operate. At one time the DNOs would not allow access to the Ryfield boards on pain of prosecution now if you call them and mention Ryfield boards the response is nothing to do with us! I have a big bunch of Ryfield keys none of which fit the lock I am trying to open. I have only one of the 4 Ryfield master keys.
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