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Do-It-Yourself (DIY) Question & Answer Forum
Low IR reading on ring main
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<blockquote data-quote="davie garden" data-source="post: 86630" data-attributes="member: 6609"><p>For Monkey5 and Badger, I see you didn't get a reply to your question so here's the amswer.</p><p></p><p>You divide the 230 volts by the 3.65 megohms and it gives you the value 0.000063 amps. This of course is only when nothing is plugged in and switched on. My advice would have been, do the test with nothing connected to the ring, after all, you are supposed to be testing the 'hard wiring only', not any appliances as well, that's what Portable appliance testing is for. The method you used is really to save you time disconnecting things like dimmers, indicator lamps, transformers etc. So assuming a client is paying you to do the testing, you should suggest that P.A.T. testing is a separate job/contract from installation testing and you then negotiate a separate price for each job.</p></blockquote><p></p>
[QUOTE="davie garden, post: 86630, member: 6609"] For Monkey5 and Badger, I see you didn't get a reply to your question so here's the amswer. You divide the 230 volts by the 3.65 megohms and it gives you the value 0.000063 amps. This of course is only when nothing is plugged in and switched on. My advice would have been, do the test with nothing connected to the ring, after all, you are supposed to be testing the 'hard wiring only', not any appliances as well, that's what Portable appliance testing is for. The method you used is really to save you time disconnecting things like dimmers, indicator lamps, transformers etc. So assuming a client is paying you to do the testing, you should suggest that P.A.T. testing is a separate job/contract from installation testing and you then negotiate a separate price for each job. [/QUOTE]
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Low IR reading on ring main
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