insulation resistance test

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  1. N

    Insulation Resistance test with 12v transformers

    I am installing a C/U and the kitchen has some old Down lights installed with 10 x 12 volt transformers connected. I know I could disconnect all the transformers but I don't plan to do that as it will be a real pain due to how the plasterboard has been bodged. Some opinions suggest the IR...
    • Nicebloke
    • Thread
    • 12v connected insulation insulation resistance insulation resistance test resistance test transformers
    • Replies: 3
    • Forum: UK Electrical Forum
  2. B

    Insulation resistance test help

    Hi I want to test the whole board at once with an insulation test so turn off main isolator and breakers turn tester to 500v? And is the best thing to do, the incoming tails L+N put in a link between them and connect your probes to the link and other to earth also can you still operate light...
  3. F

    Insulation resistance test on a db supplied via a time clock

    Hi guys new to this website just a quick question as it has been a while I have a small 6 way distribution board this only becomes live via a time clock supply wired into it I'm going to be testing this board with a IR dead test on each circuit just to make sure according to guidance note 3 & on...
  4. A

    An insulation resistance test

    Hi, Can some one please help me with this question: Q: An insulation resistance test on one of the radial socket-outlet indicated zero mega ohm between line and neutral. Explain why the result of the previous R1 + R2 test could not be used to confirm polarity for this circuit. If any one can...
    • akmal
    • Thread
    • insulation insulation resistance insulation resistance test resistance test
    • Replies: 20
    • Forum: UK Electrical Forum
  5. Dean Williams

    insulation resistance test method 2

    Hi gang im currently testing a power station, ive been told to use method 2 ie link live to neutral and test to earth on all the lighting circuits, which are all in SWA on tray with no switches in the circuits. all readings ok so far, but the last couple are reading 0.00ohms. these circuits...
  6. HappyHippyDad

    Does anyone have a list of expected Insulation Resistance test results?

    I would like to get a better understanding of what the specific IR test results could indicate. I'm talking more about the below 1MΩ area. I'm talking about.. wet plaster, flooding (sitting in water), degraded insulation etc etc, I realise it wouldn't give the answer but it may help in narrowing...
    • HappyHippyDad
    • Thread
    • anyone insulation insulation resistance insulation resistance test resistance results test
    • Replies: 30
    • Forum: UK Electrical Forum
  7. R

    Insulation Resistance Test for FICA

    Hi guys sorry for posting as I know there is a lot of posts similar to this. my problem Is for my trade test I am a little confused about insulation resistance test. I know most of it for example lock off at main switch remove all sensitive equipment test between live-neutral live-earth...
    • rob1993
    • Thread
    • insulation insulation resistance insulation resistance test resistance test
    • Replies: 12
    • Forum: UK Electrical Forum
  8. B

    three phase motor insulation resistance test

    Hi all wondering if you could help clear something up for me. I was recently working on a three phase motor rated for 480volts a.c and wired in delta. So before powering up I done my dead testing and done my insulation resistance test at 500volts d.c which I thought was correct but read up on it...
    • Buzz1980
    • Thread
    • insulation insulation resistance insulation resistance test motor phase resistance test three three phase
    • Replies: 14
    • Forum: UK Electrical Forum
  9. R

    Insulation Resistance test in FICA

    hi there I have my FICA in a couple months time and generally feel pretty confident but not too sure about the insulation resistance. I know how to test it just not sure of what precautions to take and how many tests need done? also how many times do I need to flick the light switches so that I...
    • rob1993
    • Thread
    • insulation insulation resistance insulation resistance test resistance test
    • Replies: 7
    • Forum: UK Electrical Forum
  10. S

    Insulation resistance test

    Hi. Has anyone had a problem with a Megger MFT1552 with regards to insulation resistance testing? All if a sudden mine won't work & displays 500mA. I've tried a couple of new fuses but still nothing. Everything else works fine....
    • simbin
    • Thread
    • insulation insulation resistance insulation resistance test resistance test
    • Replies: 27
    • Forum: UK Electrical Forum
  11. K

    Mineral wiring insulation resistance test failed, need certification!

    My house, built in 1960, has mineral insulated cabling and a voltage operated earth leakage circuit breaker. We moved in 7 years ago (don't suppose that is relevant though :) ) Due to some rebuilding work the meter needs to be moved, and in preparation for that my electrician has fitted a new...
    • Krispy
    • Thread
    • becsa certification circuit circuits competent cps failed insulation insulation resistance insulation resistance test led person resistance scheme test testing wiring
    • Replies: 24
    • Forum: UK Electrical Forum
  12. N

    Question regarding Insulation resistance test.

    Hi I am still training and have a question regarding Insulation resistance test. My question is when doing the test between live and earth at the consumer unit, what happens to the circuit breakers? On or OFF? Many thanks.
  13. N

    Insulation Resistance Test For Minor Works

    Hi guys, Fairly recently qualified sparky here starting to do small solo jobs. I'm interested in views on insulation resistance testing on works to be signed off with a Minor Works Certificate. (Sorry this is a long post but I wanted to cover everything.) One view on this is that you only test...
    • NickD
    • Thread
    • circuit connected electrical work equipment installation insulation insulation resistance insulation resistance test minor resistance test voltage works
    • Replies: 13
    • Forum: Periodic Inspection Reporting & Certification
  14. R

    Insulation resistance test on a EICR/PIR

    insulation resistance test on a EICR/pir have read in 'unite the union guide to inspect and test' test carried out with L/N joined to Earth and no need to disconnect loads/vunerable devices pic1 to test whole insulation, shows link between L/N (incoming) at main switch with supply isolated...
  15. L

    Advice on insulation resistance test procedure :)

    Hi guys, I would just like to ask if any one could look at my test procedure off the top of my head and give any advice or pointers or whether its too long winded or short. got an exam in 2 weeks so trying to drill it in to this thick skull :) Many thanks Safe Isolation has been carried out...
  16. L

    Insulation resistance test on new circuit

    Iam currently on a new build project and I've been carrying out some IR test prior to everything being boarded up. The construction is all timber frames with celotex ply and plaster board, I have connected up the kitchen ring with connector blocks to carry out IR tests and I have been getting...
  17. L

    Insulation resistance test on a whole consumer unit?HELP

    Can any one explain to me the correct method to test insulation resistance on a 3 phase consumer unit all at once as apposed to testing each final circuit individually? Especialy circuits vulnerable to test voltage. GN3 states that you connect line and neutral together and test to eath is that...
  18. C

    250v Insulation Resistance test - Lots of D/lights

    I know when a 250v insulation resistance test can and cant be done. But when it says that a 250v is ok when its impractical - what is the definition of impractical? Ie for this scenario: How many downlights would be deemed as impractical to remove (as they are buggers sometimes to remove...
  19. I

    Insulation resistance test

    Anyone who knows. Lighting circuit with MAINS voltage LED downlighters. If I do a 500v Insulation Resistance test on LED bulbs. Will it knock out the bulbs. I know its electronic equipment that gets destroyed predominently. Its quite a few down lighters, didn't want to hit the button without...
  20. S

    PIR Insulation Resistance Test

    Just had a PIR done for a house we were hoping to buy. The house - victorian/edwardian terrace - has 8 circuits and the wiring is approx 20yrs old according to the PIR. The report gives the same reading for ALL circuits. Live-Live is 1.01 Mohms and Live-E is 0.17 Mohms. Continuity Polarity...

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