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Do-It-Yourself (DIY) Question & Answer Forum
Is a 17th Edition metal consumer unit still legal to fit?
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<blockquote data-quote="mort2376" data-source="post: 538779" data-attributes="member: 25787"><p>According to Napit following their webinar this week. If the board has type AC rcds then it is not compliant to 18th Edition unless you can confirm that there will be no appliances connected that are dc leaking.</p><p></p><p>As this would be very hard to confirm for socket circuits then you have to fit type A.</p><p></p><p>This maybe the reason the electricians have refused to install it. The photo doesn't show clearly the type of rcd it has fitted.</p><p></p><p>On a side note again from the webinar. If you are doing work on a circuit and it has dc leaking accessories and a type AC rcd or rcbo then you have to change the rcd/rcbo in order to issue a compliant certificate.</p><p></p><p>So a simple additional socket could potentially become a board change as well if the board has obsolete components.</p></blockquote><p></p>
[QUOTE="mort2376, post: 538779, member: 25787"] According to Napit following their webinar this week. If the board has type AC rcds then it is not compliant to 18th Edition unless you can confirm that there will be no appliances connected that are dc leaking. As this would be very hard to confirm for socket circuits then you have to fit type A. This maybe the reason the electricians have refused to install it. The photo doesn't show clearly the type of rcd it has fitted. On a side note again from the webinar. If you are doing work on a circuit and it has dc leaking accessories and a type AC rcd or rcbo then you have to change the rcd/rcbo in order to issue a compliant certificate. So a simple additional socket could potentially become a board change as well if the board has obsolete components. [/QUOTE]
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Is a 17th Edition metal consumer unit still legal to fit?
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