insulation resistance

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  1. G

    Hello & Help with AM2

    Hi, This is my first post, although I have been browsing the forums for a little while now. I work in BMS and have my AM2 on friday. The nature of my work means I don't get to test so there are a few things I'm unsure of and was hoping for some clarification. I know for some people they may be...
  2. F

    Insulation resistance testing on eicrs

    Advice or quicker ways for doing i r tests on an eicr generally what I have been doing over the years is live to earth neutral to earth and joining live and neutral together then testing to earth job done but my pal who has recently had his annual nice i c visit said he's been shown a new...
  3. P

    rcd tripping during the night and insulation resistance testing question

    Hi everyone I have a customer who has a RCD that trips during the night and it resets ok the following day it is ok for a week or so then it tips again during the night. has any one any ideas and what is the quickest way of finding out what the cause is. also I need to do an insulation...
    • phil lancaster
    • Thread
    • during insulation insulation resistance insulation resistance testing night question rcd rcd tripping resistance testing tripping
    • Replies: 34
    • Forum: UK Electrical Forum
  4. T

    How to bypass an RCD and carry out an insulation resistance test on a circuit

    Hi all. I'm a 4th year electrician currently awaiting to finish my trade test. (FICA in Scotland) the only parts I have to pass is the testing part and fault finding. I'm currently studying testing as this is something I have done the minimum of onsite. Could someone tell me how I would...
    • TonyTheTiger
    • Thread
    • bypass carry circuit how to insulation insulation resistance insulation resistance test out rcd resistance test testing testing and commisioning
    • Replies: 32
    • Forum: UK Electrical Forum
  5. D

    insulation resistance question FICA

    Hi yesterday I sat my FICA test and during the insulation resistance test I’m not sure if I made a mistake I measured it doing individual circuits I had the main switch at db on but forgot to turn on the mcbs I measured between Line at MCB and earth and Neutral bar to MCB then neutral bar to...
  6. N

    Insulation resistance - strange readings

    Im getting some strange reading on a new circuit(ring main) ive installed and i was wondering if anyone else had experienced the following. insulation resistance at 500v on L-N is >500mQ (which is fine) then insulation resistance between N-E starts at 400 then climbs to 500mQ then insulation...
  7. S

    NO switch insulation resistance failure

    How often do we usually have insulation resistance failures on an NO switches leading to unexpected starts?
  8. L

    Insulation Resistance test question?

    Hi guys, I have what may seem a basic question. If a cable has been skinned at some point along the circuit would an IR test pick that up in the readings? Many thanks
  9. B

    3 Phase Insulation Resistance Test on motor & TP & N skt help

    Looking for some advice on how to carry out a IR test on a 3-phase motor and a TP & N skt, these are parts of a module I have failed on a test and am looking to see where I am going wrong and what the normal procedure for carrying out this test would be?
  10. Mark42

    Insulation resistance failure on rubber flex. Why?

    Two years ago I installed some garden lighting, using u/g SWA to Wiska boxes, then 3-core 0.75mm rubber flex downleads from each LED fitting. This week the 30mA RCBO kept tripping. I assumed a luminaire fault, or moisture in a Wiska box, but no. It was leakage across all three cores of one 10m...
    • Mark42
    • Thread
    • failure flex insulation insulation resistance resistance rubber
    • Replies: 19
    • Forum: UK Electrical Forum
  11. B

    Insulation resistance testing

    Hi have AM2 next week and just need some help, 3 phase TP+N board, two way and intermediate lighting circuit with 3 switches obviously and one light, doing a global IR test, the lighting circuit say is on L1, so I’m testing all other circuits at once too do I have to switch my switches for every...
    • Bradley6969
    • Thread
    • insulation insulation resistance insulation resistance testing resistance testing
    • Replies: 44
    • Forum: UK Electrical Forum
  12. 1

    Insulation resistance test

    Hi all on a eicr insulation resistance test between live conductors to earth gn3 says join l & n and test to earth is there any difference between that and testing phase to earth then neutral to earth? As you guys know some boards are a right mess and not in order to locate which belongs to which
  13. K

    EICR IR testing for newbies

    I'm qualified now to test and inspect with my company, which I've worked with for years and they are now about to send me out alone. Scary days ahead :eek: I've only ever had one issue with doing EICR's at training and its to do with IR testing. Here's a few questions for any of the experienced...
  14. S

    500v Insulation Resistance Test ok?

    Hi all, still training so please forgive my very simple question. Why is it ok to test an appliance at 500vdc when PAT testing but great care should be taken to remove all equipment when IR verifying a new circuit installation? Is it simply just because connected equipment will make a nonsense...
    • shinypen
    • Thread
    • connected equipment great insulation insulation resistance insulation resistance test resistance test testing
    • Replies: 4
    • Forum: Electrical Testing & PAT Testing Forum
  15. D

    SMA 4000TL 'Insulation resistance' error

    I've recently found the green light flashing and the red light on on our SMA 4000TL with the message 'Insulation resistance, check generator' on the display. Checking the ERROROB2.CSV files I can see that this isn't the first time it has errored in this way, it has happened on odd occasions for...
  16. P

    Low insulation resistance reading

    i've recently installed a new Consumer unit at home and will be using it as my first niceic assessment. I'm getting an insulation resistance reading of 1.7 on a lighting circuit in the osg it says minimum reading of 1 is this going to be ok? I've discovered what section of the circuit is giving...
    • PJW
    • Thread
    • cable circuit damaged insulation insulation resistance reading resistance
    • Replies: 11
    • Forum: UK Electrical Forum
  17. 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
  18. T

    Insulation Resistance Testing

    Evening chaps, In the process of taking my 2394/2395 testing course and just trying to fully get my head around insulation resistance testing predominantly in occupied domestic property's where it isn't possible to dissconnect all loads from the circuit. I am aware of the need to link out the...
    • tommys88
    • Thread
    • circuit circuits insulation insulation resistance insulation resistance testing resistance testing
    • Replies: 19
    • Forum: UK Electrical Forum
  19. D

    3-Phase Motor Testing

    Hi I'm Darren and I work as a apprentice for a manufacturing company. I was testing a 3kw 3-phase motor as it blew a fuse and when doing my IR test down to earth I got a reading of around 11Gohms. I was under the impression that the reading had to be above 1Mohm which this is as far as I am...
    • Darrensparky
    • Thread
    • 3-phase apprenticeship industrial insulation resistance motor testing
    • Replies: 9
    • Forum: Talk Electrician Forum
  20. J

    Insulation resistance testing Lighting circuit

    Hi everyone. I'm looking for advise on how to test IR on commercial lighting. There's so many lights on 1 circuit , do I have to take out all the lamps in all the lights to perform the test or can I simply test between LN -E ? Even though I have spent lots of time testing domestic installs and...
    • Joseph Lewis
    • Thread
    • circuit disconnect insulation insulation resistance insulation resistance testing lighting lighting circuit neutral neutrals readings resistance testing
    • Replies: 7
    • Forum: Commercial Electrical Advice
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