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<blockquote data-quote="Chris_81" data-source="post: 26378" data-attributes="member: 1666"><p>Could be more possible stupid questions here but got plenty of help off here so far so thought I'd carry on!!</p><p></p><p>Managed to sort out the high Ra reading I was getting. Done all the tests on the garage, just want to check they all read ok. (This is the first install I've tested on my own that isn't where I did my course, and that was a while ago!)</p><p></p><p>Install consists of 8 double sockets and 3 fused spurs on a 32amp mcb and 7 flourescent lamps on a 6amp mcb.</p><p></p><p>Ra 128 ohms</p><p></p><p>Prospective Fault current 1.05 kA</p><p></p><p>Ring:</p><p></p><p>R1-0.4,</p><p></p><p>Rn-0.3,</p><p></p><p>R2-0.6.</p><p></p><p>R1+R2-0.3</p><p></p><p>IR p/n-191, p/e-213, n/e-132</p><p></p><p>Zs-0.44</p><p></p><p>Lighting:</p><p></p><p>R1+R2-0.8</p><p></p><p>IR p/n-570, p/e-321, n/e-144</p><p></p><p>Zs-1.05</p><p></p><p>Main ones I'm not sure about are the IR readings as they seem low to me and the Zs reading, although I've been told these can vary greatly because of it being a TT system.</p><p></p><p>Thanks in advance!!</p></blockquote><p></p>
[QUOTE="Chris_81, post: 26378, member: 1666"] Could be more possible stupid questions here but got plenty of help off here so far so thought I'd carry on!! Managed to sort out the high Ra reading I was getting. Done all the tests on the garage, just want to check they all read ok. (This is the first install I've tested on my own that isn't where I did my course, and that was a while ago!) Install consists of 8 double sockets and 3 fused spurs on a 32amp mcb and 7 flourescent lamps on a 6amp mcb. Ra 128 ohms Prospective Fault current 1.05 kA Ring: R1-0.4, Rn-0.3, R2-0.6. R1+R2-0.3 IR p/n-191, p/e-213, n/e-132 Zs-0.44 Lighting: R1+R2-0.8 IR p/n-570, p/e-321, n/e-144 Zs-1.05 Main ones I'm not sure about are the IR readings as they seem low to me and the Zs reading, although I've been told these can vary greatly because of it being a TT system. Thanks in advance!! [/QUOTE]
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