insulation | Page 7

insulation

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  1. A

    replacing pmmc unit of waco 2.5kv insulation tester

    How can I do it? Where can I find PMMC coils?
  2. haptism

    Low insulation reading

    Testing a ring earlier and found 0.8M ohm at 250v between (L&N) - E. This wouldnt be a neon causing this would it as im testing between L N (joined) to E ? I have not yet tested between the three individually. This low reading is making me hope somethings still connected, there is a digital...
  3. 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...
  4. 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...
  5. 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...
  6. haptism

    Insulation properties of heat shrink, and tape

    Have question thats been on my mind for a while. Does anyone know if; at 250 -500 v, a single layer of heat shrink, or a single layer of insulation tape for that matter, covering a bare conductor, sufficient insulation against ?? direct contact/a shock ? It seems a bit thin in comparison to to...
  7. joel89

    Fluke 1507 Insulation Tester

    in a used condition, used about 5 times in total no longer needed as I have an MFT. Paid £450 about 2 years ago! Comes with carry case, croc clips, leads, user manual. I will post via tracked courier I think its around £9 tracked. Offers please
  8. TonyJohnson

    Isolation transformer and insulation monitoring device in horse box/bar

    The regs state 717.413 a Isolation transformer and insulation monitoring device should be used. Are there any guidance notes on type or makes i should be looking for. I see you can get 230V primary 230V secondary boxes but i'm also not sure on which to get in terms of load.. I'm inspecting this...
  9. Z

    Insulation Test before consumer change.

    Guys Is it good practice to zap the old wiring with a 500 volt insulation test before any consumer unit is installed? Or do you just go ahead and rip out the old one and fit the new? Zippy Trainee Sparky
  10. kkkkk

    Fibreglass insulation safety

    Hi guys What do people find is the best protection against horrible fibreglass insulation - I always seem to be left coughing and itching!!!? I do wear safety gear, but nothing seems to be 100%. :)
  11. 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...
  12. F

    (DIY) Extending the ring up the wall (insulation?)

    So, I'm now on my second electrical project (after the success of adding a double socket to mums attic!). In my "computer room" I'm using two extension leads to power 7 or 8 plugs, all from one single socket in the room. One of these plugs is for a powerful PC, the rest are for low power...
  13. 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...
  14. T

    Insulation over LED downlights

    Sorry if this has been asked before - couldn't find anything using the search function. After fitting LED downlights, can they be covered with loft insulation or will that cause a fire risk?
  15. S

    NO switch insulation resistance failure

    How often do we usually have insulation resistance failures on an NO switches leading to unexpected starts?
  16. gazdkw82

    Single brick wall insulation options

    We have a small toilet downstairs that had signs of mould. I've decided to pull the plaster off. I'm glad I did because it was slightly damp in places. I think this is mainly because 1. It's a single brick room and 2. They just nailed the plasterboard to the brick leaving a gap of round 10 mm...
  17. J

    Failed insulation on Fan

    hi guys, Could someone please tell me why the ‘insulation’ has failed on this pat test please? I thought over 1MOhm was ok? The test is on a fan in a dental surgery. Thanks
  18. 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
  19. 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?
  20. R

    Downlights and Loft Insulation

    I have these downlights installed under loft insulation with halogen GU10s. They are marked as fire rated and fire rated under insulation, but the installation just doesn’t look safe? I’m wondering if i should convert them to LED bulbs (that's happening progressively as the halogens blow anyway)...

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