tails

  1. R

    Meter tails over 3 metres???

    Good morning Looking for some advice on a domestic job. The consumer unit is being moved from kitchen to cupboard in hallway. The meter is staying in same place but the distance between meter and board is around 7 metres. I have been advised to fit a 100amp isolator at meter and run tails from...
  2. M

    Meter tails and capping

    Hi guys came across meter tails buried less than 50mm no rcd protection but did have some red capping over and they are in prescribed zone about a meter between main fuse and consumer unit. TNS system. C2 or no code??
  3. L

    Consumer unit tails

    When did 16mm tails stop being used by DNO
  4. D

    Length of tails

    Afternoon all, New to the site so thanks in advance. Currently working on a new build, the supply was installed last week (new build) 80a fuse installed, EON installed the meter this week with 100a DP switch. All fitted within the external meter box. I’m looking to run tails, ideally I need to...
  5. OnlQQker

    UK Why Are Incoming Live/Neutral 16mm and Tails From Consumer Unit 25mm

    I just can't seem to understand this and can't find a clear reason behind it either. I asked a chap on the DNO once and he didn't know either. Anyone?
  6. The apprentice

    Fuses and tails.

    hi there doing some work with my gaffer just for my own mind a 60 amp fuse at the main cut out with 16mm2 tails well i assume they will be what size of main switch for the consumer unit ? could 100A main switch be put on that ?
  7. A

    Meter tails issue

    Hi guys I'm installing a CU in a new build and have a couple of questions I need some guidance with regards to the meter tails. I need to drill a hole through the wall (for the meter tails) to access the main supplies which are located in the recessed box on the outside of the property. I am...
  8. T

    16mm tails on 3phase

    Evening all Guy who owns a small industrial unit currently has 100amp 3phase At the moment he only have a single phase baord with feeds a few lights and sockets. He wants to install a 20a 3phase supply for a something The mem 20a 3phase switch fuse i got only allows upto 16mm tails and not...
  9. N

    Ok to use concentric cable as meter tails??

    Been asked to do an eicr on a flat above a shop. Tails are run in concentric cable from isolator switch by the meter, to the main switch in fuseboard. Never run into this before so not if this is still deemed acceptable or not? Any advice, reg numbers? Thanks in advance.
  10. G

    Length of tails between meter and consumer unit

    Hi, I am currently studying for my 18th edition regs update exam and came across a video by SparkyNinja on you tube. I think SparkyNinja is very good and produces high quality content. However I disagree with his interpretation of regulation 434.2.1 (i) In his video he says you need a fused...
  11. HappyHippyDad

    Would I still need a gland for the tails and earth on this TT system?

    The installation is TT. The meter box has been moved by the DNO. The tails will now be >3m so I will be fitting a switch fuse. I was planning on removing the DP switch in the switch fuse and replacing with a 100mA S type RCD. I would have put one in place of the main switch in the CU so this...
  12. L

    Cut meter tails

    Working on a new build site i've come back to a property that i'd 1st fixed to find someone has cut all the cables going to the exterior of the house including the 25mm meter tails in the meter box. The house has been boarded so renewing the cables isn't really an option. What would be the...
  13. HappyHippyDad

    Tails or SWA?

    My customers meter is being moved. The distance to the consumer unit will be approx 10m. I'll be installing a metal switched fuse in the meter. I cannot run any cables up the outside as it is having some kind of wooden finish and the customer does not want anything else on show. I can only see...
  14. D

    If you didn’t have shears how would ?

    Cut meter tails and other thick cables Junior hacksaw Or Nibble with side cutters until all the way through ??
  15. ThatMatt72

    Meter Tails in Galvanised Trunking...Is that a thing?

    Hey all, Excuse the ignorance here but I wonder if you lovely folk might have any opinions or better still be able to point in the right direction in the BBB. I am being asked to move a CU from its current position, behind a fitted kitchen, under the sink and totally inaccessible, except to the...
  16. A

    Consumer unit change and tails

    Hi guys. Just a quick question. If changing a board only and tails are in wall burried or in a cavity, am I required to change them if they are existing? Or can I note it on cert that they was existing? In my eyes they need changing as if in wall rcd protection is needed and if in cavity there...
  17. D

    16mm meter tails, long run

    Hello all, I am working on a property & they need the consumer unit changed. The slight problem i have is the tails are on 16mm. But the meter is approx 10-12m (tail length) from consumer unit location. Is this length permissible. There is a KMF at the meter but the customer does not want the...
  18. C

    Tails in cavity wall

    So I have a consumer unit to change, the consumer unit was in the garage but it has been converted to living accommodation years ago. The utility cupboard is on the outside wall, the consumer unit is obviously on the inside wall but near the ceiling. The issue is when they changed the garage...
  19. HappyHippyDad

    Would 10mm tails be acceptable?

    I will be fitting a henly block to split the meter tails. I'll be taking some tails 1-2m a new shower consumer unit (63A RCD and 45AMCB) with no spare ways to fit extra MCB's. I'm not sure what the cutout fuse size is. I was planning on using 16mm tails but would 10mm tails be acceptable...
  20. juice

    Meter tails protection

    I work with temporary electrical installations to construction sites at the moment and have a query related to supply arrangements. The supply earthing sysytem is a TT type. The main cut out fuses I've been told are 200A and the supply tails are 70mm in a three phase arrangement. These 70mm...

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