insulation | Page 2

insulation

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  1. D

    Stage 2 insulation resistance test

    I have installed a circuit for an oven and carried out all of the relevant testing so far. Apart from a neon on the double pole isolation switch, there is no current using equipment connected to the circuit yet as the property is empty. In this situation, would one just make a note on the...
  2. R

    Insulation resistance for devices

    I was checking the IR on a socket circuit and found 0.4M between neutral/earth. The reading came from a garage door motor that was plugged in. once unplugged the IR was good. Does the circuit need to be cleared of all things plugged in when testing or does this constitute as a fault. I was...
  3. J

    Insulation resistance test

    Evening chaps, I've been asked to do a visual inspection, and an insulation resistance test on a fishing boat, which is working off 24v, this is a new ruling apparently, and without me signing it off as ok, the boat is currently docked, and not allowed to go out fishing. The visual checks...
  4. W

    additional sockets of insulation backed plasterboard

    So I have inherited a small job in a commercial clients own home. they want extra sockets in a bedroom they are renovating. The walls are insulation backed plasterboard. I would guess around 25mm insulation on 12.5mm boards. To add the extra sockets I was thinking of just chasing out the...
  5. Vortigern

    Is this "surrounded by insulation or on 100mm insulation in your opinion?

    Just designing and taking into account the factors for insulation and can't decide on surrounded or on top of 100mm. What say you? Cables will be in metal banding inbetween the two layers as in pic. So to be clear it will be under the upper board in pic and above the lower board on top of the...
  6. djkprojects

    Running Wires in a stud wall with insulation

    Hello guys, I‘ll be building an insulated stud wall in front of a single skin brick wall (garage on the other side). There will be 2 couple mains ring sockets and media services, LAN cable etc. as I want to hang a TV on this wall, all running from the ceiling. Will it be ok to clip the 2.5mm...
  7. Pegasus

    Insulation Resistance Test, trying to wrap my head around it

    I am self-teaching fault-finding and testing, but I can't wrap my head around insulation resistance tests. From my understanding you send 500V for domestics down the conductors using an Multi-Function Tester, and the values should be over 1M Ohm, now my question is why should the resistance be...
  8. captaincaveman

    Does anyone recognise this wall insulation?

    Hiya. Does anyone recognise this wall insulation? I'm not sure I've come across it before. I'm pretty confident it's not asbestos but it is rather crumbly. Is it chasable do you know?
  9. W

    Insulation resistance query

    Was testing a 3 phase DB for storage heating. While testing I noticed I was getting continuity between 2 of the circuits, which were on separate phases. Each storage heater has its own 20A radial, and when doing an insulation resistance test between 2 of the circuits I get a reading of 0.00...
  10. B

    Insulation resistance testing query

    Downstairs lighting is tripping rcd. Circuit has 4 chandeliers with multiple bulbs and led downlights in the bathroom. Can I just test IR on 250v setting between L,N & E and expect the same results as testing with 500v.
  11. O

    AM2S Assesment , Insulation Resistance

    Just done my exam, passed everything except Insulation Resistance... I can't think how I could've failed because it isn't the hardest thing on the wrold, Tester was on 500V and I tested circuits separately. Only way I could've failed was how I tested my Ring Final, I wago one leg of ring...
  12. K

    Why voltage is not increasing more than 2K in Megger MIT1525 Insulation tester?

    Hi Sir, I'm having a Megger MIT 1525 15KV insulation tester. During testing test voltage is not increasing more than 2KV. these is no physical damaged to the equipment. what could be the reason? pls advise. thank you...
  13. R

    Meter tail insulation

    I had an eicr done recently, the electrician gave a C2 for the meter tails having their outer insulation stripped back too far. Can I take a piece of the grey insulation off a spare tail and cut and glue it onto the missing piece to clear the C2? Much easier than having to strip back as it's...
  14. nomadicsoul

    Insulation added after second fixing!

    Hi everyone. I need a little advice please. Several months ago I first fixed and second fixed a timber frame loft conversion ( open plan living area and kitchen) for a friend /client. I haven't signed it off yet as I was waiting to install I new CU for him and for him to fit the kitchen. I...
  15. K

    Main electrical supply cable asbestos or other outer insulation?

    Hi, Can anyone tell me what material the main supply cable is wrapped with (I believe this cable is owned by the DNO). My concern is whether it is Asbestos? The below photo of the cable taken just below my cut out shows the unpainted section facing the wall to be very fibrous. Also, another...
  16. S

    For Sale Megger MIT230 insulation tester

    Megger MIT230 insulation tester for sale only reason for sale is because it was replaced with multifunction tester. £150
  17. gc4elec

    Insulation/K&T Wiring/Rewiring

    I have a home that is part 1940 and part 2005. The new portion is all new (well 2005 new) romex with grounds. The old is some rewired romex with grounds and some knob and tube (K&T) without grounds. Spoke with electrician and they recommended/installed a whole house surge protector and GFCI...
  18. G

    UK Conduit and loft insulation?

    Hi, Iam replacing my loft insulation to a thickness of 270mm, putting 100mm between the joists and then 270 over the top, then flooring it. I’m Putting 175mm loft legs on top of the joists which are 130mm which should give a slight air gap. My question is there is 20mm metal conduit running...
  19. P

    Insulation resistance of Pink Fibre

    Hi there, Does any one know what kind of insulation resistance to expect for pink fibre wall/ceiling insulation? I'm trying to figure out if the cheap insulation meter I have is actually giving me a reasonable answer. here's a bit of background: I have a GFCI mounted in an electrical panel...
  20. A

    Please Explain Double Insulation

    Hi, Just purchased a new wall light and it has no earth on terminal junction. Instructions say ‘double insulated - no earth required’. Here is a picture: How would this protect you if the wire from wall broke loose from this junction box and touched the casing which is metal? Or is it...

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