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Part P Competent Person Self-Certification Schemes
Installation resistance test querie
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<blockquote data-quote="Sidewinder" data-source="post: 453514" data-attributes="member: 9512"><p>Well if when I was doing the 2391 examiner work you would have failed.</p><p></p><p>The requirement is.</p><p></p><p>Prior to connecting the cable, you verify that it is not damaged to itself.</p><p></p><p>Thus test between all cores.</p><p></p><p>Then you connect the CPC, then you test again to make sure that the live conductors are not connected to true earth, or that the cable is not compromised in some way that it is somehow connected to true earth when it should not be, or there is some other connection fault that should not be there.</p><p></p><p>I did make a mistake once, being lazy, and trying to claw back time on a job, I tested a cable from the load end.</p><p></p><p>The cable had been damaged such that the fault did not show at the load end, but, it had a dead short line to earth from the supply end.</p><p></p><p>That was a pop and a half!</p><p></p><p>It also cost me a new cable and 3 men on overtime on a Saturday to fix it!</p><p></p><p>Never again.</p></blockquote><p></p>
[QUOTE="Sidewinder, post: 453514, member: 9512"] Well if when I was doing the 2391 examiner work you would have failed. The requirement is. Prior to connecting the cable, you verify that it is not damaged to itself. Thus test between all cores. Then you connect the CPC, then you test again to make sure that the live conductors are not connected to true earth, or that the cable is not compromised in some way that it is somehow connected to true earth when it should not be, or there is some other connection fault that should not be there. I did make a mistake once, being lazy, and trying to claw back time on a job, I tested a cable from the load end. The cable had been damaged such that the fault did not show at the load end, but, it had a dead short line to earth from the supply end. That was a pop and a half! It also cost me a new cable and 3 men on overtime on a Saturday to fix it! Never again. [/QUOTE]
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Part P Competent Person Self-Certification Schemes
Installation resistance test querie
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