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17th bonding ... again.
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<blockquote data-quote="Robbo" data-source="post: 22174" data-attributes="member: 1531"><p>Right, under 17th edition regulations if a bathroom has (lets say) a light, extractor fan and a shower. And each circuit is protected by a 30mA RCD back at the distribution board.</p><p></p><p>And lets say there is a 10mm earth clamped to the incoming water mains and another 10mm earth clamped to the incoming gas. The main earthing conductor is in place and is 16mm.</p><p></p><p>And if these circuits disconnection times comply.</p><p></p><p>Then *waits for the onslaught* there is no need for supplementary bonding/cross bonding in a bathroom????</p><p></p><p>I was led to believe this when I did my 17th update course. The lecturer wasnt too pleased with the change. Being a bit old school I remember him being happy to tell people to still bond in bathrooms as "you are relying on an RCD which is only a mechanism that could still jam or become faulty over time if regular tests are not carried out etc"</p><p></p><p>I havent seen anyone running an earth around a bathroom since the introduction of the 17th, but I still see people cross bonding pipes at combi boilers and I get confused. Is this a requirement or isnt it? Or would it just be the odd spark who, like my old college lecturer, do not trust the RCD and would rather take the extra precaution?</p></blockquote><p></p>
[QUOTE="Robbo, post: 22174, member: 1531"] Right, under 17th edition regulations if a bathroom has (lets say) a light, extractor fan and a shower. And each circuit is protected by a 30mA RCD back at the distribution board. And lets say there is a 10mm earth clamped to the incoming water mains and another 10mm earth clamped to the incoming gas. The main earthing conductor is in place and is 16mm. And if these circuits disconnection times comply. Then *waits for the onslaught* there is no need for supplementary bonding/cross bonding in a bathroom???? I was led to believe this when I did my 17th update course. The lecturer wasnt too pleased with the change. Being a bit old school I remember him being happy to tell people to still bond in bathrooms as "you are relying on an RCD which is only a mechanism that could still jam or become faulty over time if regular tests are not carried out etc" I havent seen anyone running an earth around a bathroom since the introduction of the 17th, but I still see people cross bonding pipes at combi boilers and I get confused. Is this a requirement or isnt it? Or would it just be the odd spark who, like my old college lecturer, do not trust the RCD and would rather take the extra precaution? [/QUOTE]
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17th bonding ... again.
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