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<blockquote data-quote="spacebiscuit" data-source="post: 560485" data-attributes="member: 38375"><p>I'm thinking I should earth down my PV on my flat roof. Can I use 6mm cable - the 10mm seems like it will be hard to work with but I believe is what regs state. Would 6mm do anything in the event of say a lightening strike. My thinking is that 6mm is better than nothing at all?</p><p></p><p>Other question - does it have to earth down to a rod in the ground or can I tie it into the house somewhere which is already earthed down?</p><p></p><p>For the record I have retrofitted my panels myself, I'm not sure that they were previously earthed down.</p></blockquote><p></p>
[QUOTE="spacebiscuit, post: 560485, member: 38375"] I'm thinking I should earth down my PV on my flat roof. Can I use 6mm cable - the 10mm seems like it will be hard to work with but I believe is what regs state. Would 6mm do anything in the event of say a lightening strike. My thinking is that 6mm is better than nothing at all? Other question - does it have to earth down to a rod in the ground or can I tie it into the house somewhere which is already earthed down? For the record I have retrofitted my panels myself, I'm not sure that they were previously earthed down. [/QUOTE]
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