Low IR on ring | on ElectriciansForums

Discuss Low IR on ring in the Periodic Inspection Reporting & Certification area at ElectriciansForums.net

ringer

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I don't normally double-post, but have had 56 views so far in the General Forum and no responses. Perhaps re-stating my question here, where it's more appropriate, may elicit an answer...

In preparation for installing a FSU to an existing external light that has been taken off the ring circuit (without a fuse), I did an IR test LL+NN -> E on the ring circuit and it came out at 0.29Mohms. Was not able to run round to see what was plugged in at the time, but it is likely a lot of things were (domestic property). Boiler and immersion are on a separate circuit. Would this low reading be because appliances are plugged in on the ring, or does it indicate a fault? If a fault, what sort of fault would give IR of that magnitude?
 

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