H
hightower
When you do a L&N-E IR test, is there anything (other than a fault) that could be left plugged in that would produce a low reading?
Discuss L&N-E IR Test (and we still haven't fixed the stupid 20 characters) in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net
I'm not asking for a particular scenario, like I'm not having issues. Just wondering if there's any predicament that could cause a L&N-E IR test to cause a low reading and stick that knowledge in the back of my head somewhere.surge protection?
IT equipment. computers are renown for having small earth leakage.typically around 3mA apiece. that's why you never put too many on a circuit with RCD protection.
Its a handy method for EICRs when you either cant disconnect everything, or are unsure of any loads that are connected without your knowledge.
IT equipment should not give false readings unless they incorporate filters and this is rare. IEC leads should never give false readings. Testing an office last night nothing unplugged all circuits above 100 meg. Shaver socket is a new one on me and I think you need to ask if such things and IEC leads give false readings then they are faulty.( Is it a reason to start splitting ring up ... or is that cheating )
Localise !
Never mind IT equipment plenty of naff IEC cables out there !
(IEC leads may test good at 120V for some reason ...)
I'm having trouble visualizing this. How would you plug your shaver in?I wasn't able to examine the shaver TX it had been installed under a floor that had then been laminated.
Agree with faulty , 1x cable reading 300M(500V-unplugged)IEC leads give false readings then they are faulty.
How do you know it provided an isolated supply.The shaver point on the wall was just passive. The feed to it is the SELV from the TX.
The advantage is the shaver point is small with nothing in it and no in separated mains is fed near it. They aren't very common.
Pointless exercise unless you get odd readings.It's not a test i would carry out with anything plugged in, i would aldo disconnect lamps and Led lights and smoke alarms. It's the only way you'll ever be 100 confident in it results
Reply to L&N-E IR Test (and we still haven't fixed the stupid 20 characters) in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net
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