insulation resistance

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  1. 1

    Insulation Resistance Testing - Gremlins!

    How close have you come to losing the plot on site? lol I'm normally quite laid back when it comes to working my way through the faults that I have come across in my limited testing time. Today though? Oh my flipping ruddy bollards!!! I quite easily could have lost it completely ha ha...
    • 1shortcircuit
    • Thread
    • aus electricians' talk insulation insulation resistance insulation resistance testing resistance socket sockets testing
    • Replies: 2
    • Forum: Australia
  2. D

    Insulation Resistance 500v if testing between E with L and N connected???

    My multimeters lowest IR setting is 500v so if I test between earth and L and N connect together could I still damage selv/pelv equipment? Thanks
    • Danielwareham
    • Thread
    • aus between change connected electricians' talk fluke insulation insulation resistance multimeter resistance testing voltage
    • Replies: 6
    • Forum: Australia
  3. S

    Insulation resistance with shorting leads?

    Does anyone use shorting leads when doing insulation resistance tests on properties with sensitive equipment? Ie connecting a lead to the live and neutral bar and testing across the earth so no voltage will flow across either therefore not damaging sensitive equipment. I no this would have to go...
  4. B

    Class 1 - Insulation Resistance lower legal limit?

    Hi Guys, Could you guys tell me what the lower legal limit is on Insulation resistance for Class 1 appliances? We raised our own test limit some years ago to >5m ohm due to certain units failing when installed on site and us getting increasing warranty call outs to fix them. We narrowed it...
  5. L

    Insulation Resistance Test

    Hi All, I'm doing a c/u change for my first assessment which is next week and I'm getting myself confused over the Insulation Testing, hope you can help. The setup is a TT supply, coming from the meter into a new 100A switch isolator (where the old 100mA RCD was) then 25mm tails across to the...
  6. S

    Insulation resistance testing on sensitive equipment

    When doing an insulation resistance test on selv spots what's the best way to do it without disconnecting all the transformers? Can you do a complete consumer unit insulation resistance test by linking the live and neutral bars together and testing between earth on a 500 volt test or should...
    • schoe
    • Thread
    • between connected earth electricians' talk equipment insulation insulation resistance insulation resistance testing resistance sensitive switch testing
    • Replies: 6
    • Forum: Periodic Inspection Reporting & Certification
  7. S

    Insulation resistance help on a ring main.

    Hi all having a few issues with an insulation resistance test on a ring main. Firstly carried out my continuity test, End to end, L-l 0.93 n-n 0.90 e-e 1.46 R1+n 0.47 r1+r2 0.61 So then moved onto the insulation test. Checked all the sockets for tightness, made sure nothing was...
  8. S

    Insulation resistance help

    Hi all, just a quick question when doing an insulation resistance test on a 2 way lighting circuit do both switches have to be open at the same time to get a <500 m result, because when they are both open and both closed I get this result, but when one switch is open and the other is closed I...
  9. L

    Insulation Resistance Test

    HiI have just test a couple of phone chargers in my house using a Kewtech KT71.When i have pressed the class 2 test it goes through it sequence and then fails on insulation, but if i press the test again (still on the same test i think)it passes. Now if i was doing this test for real would i...
  10. G

    Insulation Resistance testing of Emergency Lighting circuits

    This is proving to be a pain in the backside. It just impractical to disconnect the emergency, as they are hard wired. So apart from putting notes on the test sheets, how can I get good readings, at present I am getting 100 ohms on all conductors, with emergency connected. When the emergency's...
    • Guest 004
    • Thread
    • circuit circuits electricians' talk emergency emergency lighting insulation insulation resistance insulation resistance testing lighting resistance testing
    • Replies: 5
    • Forum: Periodic Inspection Reporting & Certification
  11. S

    Insulation Resistance Test with Fluke 1652

    I'm using a Fluke 1652c as my MFT. When I do the Insulation resistance tests at 500v - sometimes the result is displayed immediatley i.e >500 Megohms , other times the resistance seems to climb slowly, peaking around a figure. As this figure is generally massively in excess of the required 2...
  12. E

    Insulation resistance test dc side

    I am going to do my first install and at the risk of getting shot down, I was told on my training that you can NOT do a insulation resistance test dc side? However since been told by a friend that is wrong! Can someone please tell me the exact sequence, as everyone has a different take on this...
    • ElectroW3b
    • Thread
    • electricians' talk insulation insulation resistance insulation resistance test resistance test
    • Replies: 4
    • Forum: Solar PV Forum | Solar Panels Forum
  13. 1

    Minor Works certificate - Insulation Resistance test - Advice Please

    I am currently doing work that will require a Minor Works Certificate on completion. The property I am working in is council owned and the occupant is currently in hospital. Due to the amount of work being undertaken ALL of the rooms have been previously filled with furniture etc. My...
    • 1shortcircuit
    • Thread
    • access advice being certificate electrical work electricians' talk insulation insulation resistance insulation resistance test minor please resistance rooms test works
    • Replies: 16
    • Forum: Periodic Inspection Reporting & Certification
  14. La Poste

    Insulation resistance of ring, 2391 question again!!

    Howdy folks. I am working my way through loads of past test papers at the moment in preparation for my July exam. I have been asked to insulation test a ring that has been properly isolated. The way I have always insulation tested rings is to remove line, neutral and CPC conductors from the...
  15. S

    HELP !! with Insulation resistance test on ring and lighting circuit

    just trying to builded up my confidence, am going to do an insulation resistance test on my ring and the lighting cicuit, but on the ring their are build-in appliances eg. fridge,wash machine,hob and electric heater that cant pluged out. and the light their are two dimmer and 14 spotlight,how s...
    • soar
    • Thread
    • appliances circuit electricians' talk help insulation insulation resistance insulation resistance test lighting lighting circuit method other resistance ring test their voltage
    • Replies: 28
    • Forum: Periodic Inspection Reporting & Certification
  16. N

    Fluke Insulation Resistance No Reading

    Hi, I was wondering if anyone has come across this before. I was doing an insulation resistance test on a property practising for my periodic exam. I set the tester to 250v because I couldn't remove all equipment, when I went to test across the live conductors and CPC I didn't get a reading and...
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