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BS7671 history and the future?...
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<blockquote data-quote="Sidewinder" data-source="post: 451314" data-attributes="member: 9512"><p>I just picked the earth rod reg from many.</p><p></p><p>The requirement for the supplementary electrode may well be that it must be &lt;20 Ohms, it is still under debate I believe, it may end up needing to be &lt;1 Ohm.</p><p></p><p>There are many others to pick from that could end up C2'ing an install.</p><p></p><p>Also it is just going to drive work away from the legitimate guys because of the extra work that they have to do to comply.</p><p></p><p>The additional rod is to mitigate against the loss of a PEN conductor and divertd N currents, again it has not been well thought through.</p></blockquote><p></p>
[QUOTE="Sidewinder, post: 451314, member: 9512"] I just picked the earth rod reg from many. The requirement for the supplementary electrode may well be that it must be <20 Ohms, it is still under debate I believe, it may end up needing to be <1 Ohm. There are many others to pick from that could end up C2'ing an install. Also it is just going to drive work away from the legitimate guys because of the extra work that they have to do to comply. The additional rod is to mitigate against the loss of a PEN conductor and divertd N currents, again it has not been well thought through. [/QUOTE]
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