isolation

  1. 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...
  2. 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?
  3. 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...
  4. E

    Commercial 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...
  5. 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'?
  6. 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...
  7. 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...
  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. 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...
  10. Karl Atkins

    Isolation switch for rewire/new CU

    Are we required to install an isolation switch between the meter and CU when completing a full rewire and/or CU upgrade, I think it's best practise, mate's/colleagues think unnecessary, customers don't like paying for it! Opinions please
  11. B

    Shower isolation swiching

    Could any of you kind people clarify wether an isolator is required for an electric shower installation. The manufacturers drawing shows one and quotes b.s. 7671 but I can't find anything in the rest As a matter of fact I All ways fit one for safety reasons Thank you in advanced
  12. Ian1981

    Isolation for 3 phase domestic installations

    4 pole isolation for domestic 3 phase installation. Is it a requirement? Regulation 537.1.4 requires a linked switch or circuit breaker to isolate both live conductors of a single phase supply for ordinary persons of a household or similar installation.
  13. T

    Safe isolation of supply's for trade test

    Hi all. I'm currently a 4th year apprentice waiting to undertake his trade test this week. The part I am sitting is safe isolation and I was looking for some advice regarding the test. I have attached below the information I have been given. I was just wondering if somebody could confirm for me...
  14. C

    Main isolation by local REC

    How come us electricians have to put in metal Db’s,they come along & put in a plastic isolater,for us to connect to.
  15. Jymbob

    Isolation of lighting circuits?

    Me again, with another question which I fear will become more common as Smart Home technology becomes more popular. Lighting isolation: is it a requirement to have a switch which breaks the live circuit close to the light? Background: I've got some smart bulbs which I can turn 'on' and 'off'...
  16. J

    Am2 safe isolation advice

    Hi everyone. I am currently doing my am2. Did they safe isolation today. Not sure if I messed it up. For some reason I took the protective neutral cover off from the board then performed the 10 step isolation. I asked permission to isolate, labelled with warning signs and put key in pocket...
  17. U

    Flat communal stair lighting breaker box key

    Hi all, Does anyone know where I can find a key that would fit a lock like that shown in the attached image? This sort of 2 prong lock is on an electrical cabinet in our communal stair and houses the circuit breakers for the lights. I want to cut the relevant circuit so I can change the...
  18. S

    Trapped Key Isolation Failure

    Hi all. Can someone point me in the right direction for the current regulations on control panel isolation for machinery (industrial) if possible please? An issue arose with a machine trapped key system failing, allowing an individual to remove the key, but the machine staying live and...
  19. M

    Jet fan isolation...

    Hi guys just a quick one which has been playing on my mind. I worked for a smoke extract and ventilation contractors and have just recently left. Before my departure I was given information by way of the apprentice that the project manager wasn't putting in 3 phase isolators and just using the...
  20. S

    Bathroom extractor isolation switch/PIR

    Small job for a landlord friend of mine having problems with tenants turning off the bathroom isolation switch and causing damp to the property, Can I replace the fan isolator with a pir so if their would like to isolate the supply their would have to do it from the consumer unit any advise...
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