ir test

ir test

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  1. Antares

    Dead test circuit with 2 cpc

    Hello everyone, I saw in the hospital every circuit has 2 separate cpc, same size, sometimes different. I'm wondering. How we can do the dead test in this case? R1+R2 whith 2 cpc combine, but IR test 2 cpc separate? what result will be sign in test sheets?What in case if there are 2 different...
  2. Raptor0014

    Odd problem on IR Test.

    Doing some testing today on a Wet Room installation. Fed from its own small CU. And consists of 2 x seperate 50A (for 10.5kw shower) circuits 1 x 20a radial for underfloor heating. This runs direct from CU to a fused spur and then from the fused spur to the UFH controller. 1 x 20a radial...
  3. S

    Am2 question on bonding and ir test

    Hi, I have a couple of questions from the am2. The install bays have the cutout fuses in a adaptable box with just a banana plug on the earth. This then acts as the met up in the cu, should I disconnect at the cu and test down to the banana plug for continuity, like for the main bonding? Or keep...
  4. A

    I did a VLF and IR test on my 33kv cable and IR resulted between 80 to 100Mega Ohms

    I did a VLF and IR test on my 33kv cable and IR resulted between 80 to 100Mega Ohms on all the phases and VLF between 0.270 to 0.470mA is the cable ok
  5. P

    Low IR test readings on lighting and RFC.

    Hi,guys went to do an EICR and when doing IR test I got L-E ON RFC like 0.02 MOHM and two lighting circuits L-E AND L-N the results were like 0,14 and 0,15 MOHM.It is old wiring where all the cables live and neutrals are black put in the walls in steel conduit.My question is is it possible that...
  6. timhoward

    Interpreting IR test

    I'm doing testing ahead of a board change. It's a cramped Wylex rewirable installed by Spiderman himself. (I still haven't worked out why there seem to be 4 lives and 5 neutrals for lighting circuits, but that mystery will have to wait until the point of no return) I eventually got the RFC lives...
  7. D

    Is it ok to do insulation resistance test on RCBO at 500v?

    I know you are not supposed to do a insulation test on circuits that are protected by an RCD at 500v because it may damage the electronic components inside the RCD so that's why you switch the RCD off before you test the individual circuits, however, what if the circuits are all protected by...
  8. B

    500v IR test shock?

    when testing pipework to see if its extraneous using the 500v ir test is there a possibility of an electric shock if someone in the house happened to be touching the pipe at the same time of testing? Yep, I'm prepared for some stick here so fire away ?
  9. N

    IR test on TP+N Switch

    Good Afternoon I was wonder the correct procedure to carry out a IR test on TP+N switch , i been told the tpn switch shouldn't be switch on for this test , i believe if the load are remove the switch should be on so i would test the complete circuit Thank for you help
  10. FatAlan

    First fist IR test on RFC

    Just carried out an IR test on a first fix RFC. It’s one of two RFC’s that I’m using in a complete renovation of my house. At the moment plasterers are sill working their way round and at each socket outlet I’ve wago’d the conductors and confirmed end to end continuity. r1 -0.83, r2-1.4 and rn -...
  11. J

    IR test on DOL to motor on am2

    i have my am2 coming up soon. Was just curious as to how you test the dol tobthe motor after doing the global IR test, testing strappers and ring etc. Do you test from the dol going to the motor, or from the motor to the DOL, or does it matter? Any advice would be great. I have used this forum...
  12. J

    IR test on DOL to motor AM2

    Does anybody know if you only to an IR test on the cables that you have pulled in from the DOL to the motor on the AM2? So, you would just do L1-E,L2-e, L3-e, Then L1-L2, L1-L3, L2-L3? Obviously from the DOL to motor you will only pull in brown, black, grey then and earth with no neutral.
  13. J

    Am2 IR test failed on the global test

    hi all, Failed my AM2 on IR test. Just a query do you have to remove both the nuetral and the cpc fly lead from RCBO when doing a global test? I did this but I did not put the cpc from the ring final in to the MET bar. I tested the ring circuit, motor and strappers separately. That’s the only...
  14. W

    IR test on lighting circuits

    whilst carrying out EICR I usually find it near impossible to disconnect all loads ( on lighting especially) I there fore only carry out IR on Line and neutral to Earth. However, when I see most other certs, they claim to have recieved 299 ohms on live to neutral? Am I missing a trick, or am I...
  15. N

    Test Rig IR Test Correct Proceedure

    Hi Guys. So I have a test coming up and wanted to get a bit of advise regarding the best way to test so I don't fail. On the rig there is a shower unit connected to a Pull cord isolator with neon. So to test it I guess I am going to have to 1. open the shower and remove the live 2. turn on...
  16. Soulsurfer

    IR Test ? Weird issue N-E only

    Hey all, just doing some tests on a small extension and have a weird issue with IR on lighting circuit, all switches left open as nightmare to strip all lamps, fittings etc.. L&N to CPC not ramping up over 7-15V DC then resetting test ! L-N on 250V or 500V 31-32 Meg L-E 32.6 Meg N-E won't go ...
  17. H

    L&N-E IR Test (and we still haven't fixed the stupid 20 characters)

    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?
  18. D

    IR test with transformers and dimmer on circuit

    Evening Chaps On a job at moment and testing lighting circuits that have a lot of down lighters and a dimmer. Am I correct that if I disconnect live neutral and cpc from board join L-N together with all switches in closed position and test this to cpc and do IR test I have pretty much proved no...
  19. N

    IR test on a circuit with RCBO

    IR test on a circuit with RCBO Hopefully a simple question, some can help with. RCBO says on the pack don't carry out IR test, so how do you get around that ?:frown2: Thanks in advance.
  20. O

    L2, L3 N & E IR test showing dead short, so why is the system working

    Hello All, I've been call to a small chapel as the power goes on and off once or twice a week. Cable is a 50mm 4C fed from a 100A 6kA MCCB 50-60m away. 4pole RCD in Chapel. Load on each phase is about 20-35A when the A/C kicks in so MCCB and cable OK for that. IR at 500V Fluke 1653B. Results...

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