isolation

  1. J

    Advice on locking off and isolation

    Hi guys I wanted abit of advice on the best way to electrically isolate a supply when you don’t have the correct lock offs for the device i.e withdraw-able fuses (I know you can get lock outs for these but was wondering what could be done if these aren't available). I guess I’m just asking about...
  2. E

    DNO Isolation For Changing DB

    Hi All, I need to change a DB in a block of flats in central London (W2 postcode), where EDF can't give a date for at least 6 weeks to come and isolate the supply, but at the same time won't / can't give out a date after this, which makes no sense to me! This is both options of just popping...
  3. C

    AC isolation switch?

    Instead of using the standard rotary isolator for the inverter, is it acceptable to use a standard 100A switch within the consumer unit? It's DP, can be locked off, and will obviously be clearly labeled :-) Anything wrong with this method?
  4. SJD

    Consumer unit with no isolation of N

    Came across a consumer unit today, where there is no means of isolation of the N, see below. The property is a flat, fed with 4-core SWA plus a separate 16mm2 E, from a TN-C-S supply via a TPN switch fuse in a communal meter cupboard. There are 3 supplies - 24hr, plus 2 off-peak supplies...
  5. M

    Mains isolation

    we have a mains supply 400A from a switch room which is fed from a switch fuse to a old Bill red spot board which is approx 80M away,we are removing the fuse board and installing a bus bar chamber in its place,do we need to install another switch fuse isolator below the bus bar chamber or is the...
  6. S

    Fan isolation switch configuration error

    Hello Guys I am new to the forum I was looking for a little advise if possible. My bathroom fan isolation switch has cracked & was looking to get it replaced. I isolated the supply and inspected it. As it looked very simple to replace I purchased a new switch. The new switch arrived but it has...
  7. R

    Cooker Isolation Switch Installation

    Hello all Here's a picture of a newly installed cooker isolation switch. As you can see it is located under a worktop. You are looking at it with the two fridge that is normally located under the worktop in that location removed. I would appreciate your opinions on the location of the switch...
  8. L

    UK best way for isolation

    ive been asked to rewire 5 flats , each flat is on a card meter, a new cu is to be installed in each flat to cover 3/4 circuits, a new landlords main board is to be installed by the front door, can each flat be isolated from the main board or does each flat need individual isolation like it is...
  9. Pete999

    Self Isolation

    I you did self isolate, where would you self isolate, and what would you take with you, what would you do regarding food and drink?? just turned on the TV and Loose Women was on that Janet Street Porter is really quite sensible, saw that Muppet Piers Morgan earlier on getting all hot under the...
  10. C

    UK Can I use a 3 pole isolation switch as a basic trigger switch?

    Hello all, a little help would be much appreciated. I would like my extractor fan to have its own trigger switch, not dictated by the bathroom light switch. However, I’d like that switch to have an indicator flag. I’ve seen the ones on tlc but these are a 3 pole isolation switch. How could this...
  11. I

    UK Kitchen appliances & sockets, switches, isolation etc.

    Hi, First post so go easy on me. Looking for some advice on kitchen appliances (washing machine, dishwasher and fridge/freezer) because I have to move some of them in a kitchen redesign happening soon. At the moment, I have above bench fused switches for each appliance, then below bench...
  12. 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 -...
  13. 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...
  14. 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...
  15. 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...
  16. 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
  17. 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)
  18. 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...
  19. 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...
  20. 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...
    • Deleted member 112675
    • Thread
    • cost isolation switch
    • Replies: 59
    • Forum: UK Electrical Forum
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