isolation

  1. M

    Carrol & Meynell isolation transformer

    This is for lab use where I need a transformer with a known level insulation and appropriately tested. I have now sent 3 messages to: Carroll & Meynell - Transformers for industry - Isolation Transformer, 230/230V, 3kVA - CM3000/230 -...
  2. T

    Isolation for SPDs

    Evening all Do type 2 SPDs need isolation? I’m planning a dual tarrif board change with Crabtree RCBOs & AFDDs but Crabtree don’t do a dual board with SPD I’m going to put a separate SPD in and saw Crabtree so a unit with no main switch and just the SPD. Guessing tails straight in.... no main...
  3. C

    In ceiling speaker isolation

    Morning all, wondered what your thoughts are here. I‘m doing a rewire in a property along with a new consumer unit for a client. they have now asked for installation of 4 pairs of in ceiling Bluetooth speakers, each pair is supplied by a 12v transformer. I’m trying to decide on the best way of...
  4. H

    Bathroom extractor fan isolation switch issues

    Hi I need some advice should I try to fix this isolation switch for the extractor fan or buy a new one. The switch part of the product has come off. It seems it was previously attached into the plate using some resin of some sort. Over time it became loose and has come off. I can manually insert...
  5. M

    UK different glands on same isolation

    hi all, just out of curiosity can you tell me why these have different glands. 1st is a junction box for an outside light and 2 nd is an isolation for an aircon kind regards darren
  6. G

    Shaver sockets and (unnecessary (?) isolation switches)

    Hi all, just a simple one, when fitting shaver sockets, (on lighting circuit) do you connect them via a switched fused spur, and if so why? (assuming mi's dont ask for one)
  7. G

    Safe isolation AM2

    Hi all, Recently carried out my AM2 exam but failed on safe isolation (single circuits) & fault finding. The weird thing is I only failed one out of 3 on the safe isolation so not sure what I done differently. I’ve got my Resit booked and just wanted to ensure that I’d be doing it the correct...
  8. Megawatt

    Will isolation transformer absorb in rush current and not the generator

    I have a 10,000 watt surge and 7000 watt running capacity on a 240/120 vac generator. Now this is a theory I have electric heat with 10,000 watt heating elements. When the heating elements kick on it bogs down the generator to the point I have to kill the heat. The question is if I bought a 15...
  9. D

    100a Isolation Switch Cost

    Hello Everyone Despite buying electricians gloves, other ppe, 25mm tails and the switch itself I'd still rather it be done by someone a/ qualified and b/ has done it many times before. Only worse case would I consider c/ .... Anyway, I guess there are some variables so maybe hard to get an...
  10. O

    DNO providing DP isolation.

    Just sounding things out as to what DNOs are charging for providing DP isolation switches where all that is in situ is the main supply fuse and the meter. Customer was quoted £30 by their leccy provider to have a DP isolater fitted. The following day an email reached them from their provider to...
  11. T

    Correct Lock Off Device for 4 Pole Main Switch

    Hi all & thanks in advance for any feedback. Could anyone tell me the correct Lock off device used to safely isolate a 4 pole main switch? I'm not 100% sure if the isolation device with the prongs is the correct device to be used or if another lock off device is necessary. Pics attached...
  12. D

    Isolation lock off device

    Can anyone recommend an lock off device that works well on an 60947-3 main switch. Most of them that I have seen come as a kit with lots of tatt thrown in that I do not need such as the padlocks, labels and cable ties etc, and are seriously overpriced?
  13. C

    Isolation and switching

    I have a question regarding isolation and switching arrangements. I want to work out what would work best within the regulations regarding splitting a new 200a TPN PME supply to serve flats above and a shop below. my initial thinking new 200a PME supply - Trunking above feeding a new ryefield...
  14. E

    3phase cut out for Isolation

    Hi Guys, Have a situation with a Wylex 60A single phase switch fuse isolator that is overheating & conductor insulation is burnt. It is supplied by 25mm tails from a henley block. There are also more henley block connections across all phases which I don't like at all. Anyway, for safe...
  15. G

    Mirror light from lighting circuit. FCU or isolation switch needed?

    Hi everyone, Does a mirror light on a lighting circuit need to be on an isolation switch, fused spur or can it be wired directly on the lighting circuit? My thoughts are; My job is to protect my cable, there I have no issue, i.5 mm2 cable to mirror light Local isolation, the mirror does not...
  16. J

    EICR isolation & switching

    Can anyone clarify why isolation and switching are excluded from the inspection schedule on EICR model forms, but included in 'guidance for inspectors'?
  17. G

    Isolation Fault

    On submitting FIT meter readings to the electric supplier, notification was received that there was a discrepancy between the most recent readings and those previously submitted. On checking, it was found that there was a big discrepancy between the FIT meter fitted by the solar contractor (now...
  18. A

    Kitchen appliance sockets and safe zones - right or wrong?

    Hi all, I think I'm posting this in the right place - apologies if not. I'm wondering if I could ask for a bit of help here. I'm renovating a house for myself to live in, and I've spoken to an electrician this week to have it fully rewired. There appears to be a problem though with my planned...
  19. 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...
  20. Electron

    Isolation Switches for New Consumer Unit

    I ask customers to get their electricity supplier to fit an isolation switch so that I can safely isolate the supply while I fit a new consumer unit. This must be a common request but my customers usually recieive a response as if no one has ever before asked for one. This is part of an email...

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