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Do-It-Yourself (DIY) Question & Answer Forum
Rerouting Not Rewiring Cables - Need To Be Signed Off?
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<blockquote data-quote="SPECIAL LOCATION" data-source="post: 477499" data-attributes="member: 250"><p>Global IR test can be a bit of a waste of space if you have things in board that can distort the readings..</p><p></p><p>e.g. some of those RCBO's with the white earth fly-lead can give readings less than 0.5 Meg between N and E @ 500v!! :angry: :shakehead </p><p></p><p>Plus on an existing installation more often than not, one or more circuits have something connected that lowers the IR value..</p><p></p><p>So you end up having to test each circuit in turn to find out that something is still plugged in or the shed PIR &amp; security light is a bit damp inside!!!</p><p></p><p>The majority of the time the quickest overall method timewise is to check each circuit individually from the start, so if you encounter low readings you know where to start looking.</p><p></p><p></p><p></p><p></p><p>GN3 actually says "The Initial inspection interval" i.e after a new installation is 10 years before re-inspect &amp; test.....</p><p></p><p>But if an installtion is still testing as good as new..</p><p></p><p>Then its reasonably safe to assume another 10 years is good...</p><p></p><p>But to be strictly to the letter...</p><p></p><p>There is NO fixed guidance for next inspection following EICR of and older installation..</p><p></p><p>It is down to the judgement of the inspector. </p><p></p><p></p><p></p><p></p><p>I think we all actually knew what Binky means with his 10 year figure...</p><p></p><p>But to the wording of the Big Book you are correct.. :Salute </p><p></p><p>I have done a few 6month, 1 year and 2 years...</p><p></p><p>But the majority do tend to be either 5 or 10 years..</p><p></p><p> Guinness</p></blockquote><p></p>
[QUOTE="SPECIAL LOCATION, post: 477499, member: 250"] Global IR test can be a bit of a waste of space if you have things in board that can distort the readings.. e.g. some of those RCBO's with the white earth fly-lead can give readings less than 0.5 Meg between N and E @ 500v!! :angry: :shakehead Plus on an existing installation more often than not, one or more circuits have something connected that lowers the IR value.. So you end up having to test each circuit in turn to find out that something is still plugged in or the shed PIR & security light is a bit damp inside!!! The majority of the time the quickest overall method timewise is to check each circuit individually from the start, so if you encounter low readings you know where to start looking. GN3 actually says "The Initial inspection interval" i.e after a new installation is 10 years before re-inspect & test..... But if an installtion is still testing as good as new.. Then its reasonably safe to assume another 10 years is good... But to be strictly to the letter... There is NO fixed guidance for next inspection following EICR of and older installation.. It is down to the judgement of the inspector. I think we all actually knew what Binky means with his 10 year figure... But to the wording of the Big Book you are correct.. :Salute I have done a few 6month, 1 year and 2 years... But the majority do tend to be either 5 or 10 years.. Guinness [/QUOTE]
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