main fuse

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  1. B

    Main fuse question.

    I came across this the other day and was wondering if anyone could educate me. A TNC-S supply, into a relatively new box where the neutral and earth separate, line and neutral coming out of the top of the box via a 100A fuse to the meter. So far so simple, but next to the main 100A fuse are what...
  2. H

    DNO and pulling this main fuse.

    Hi all I have a job to do on 12th august, its changing consumer board so need main fuse dropping now after 12 years as a electrician in forces I am new to this domestic s**t I have rang them up and I ave to ring suppliers up then I ring suppliers up and get told I cant speak to them its all...
    • hutch6447
    • Thread
    • dno fuse main main fuse pulling
    • Replies: 35
    • Forum: UK Electrical Forum
  3. G

    DNO Main fuse

    I would like to start by saying that I have never touched a DNO main fuse. I have always wondered though, whether some electricians might be tempted to keep a few spares in their vans to get customers up and running, rather than bother the very busy DNO people, if one was to fail. Anyone else...
    • Guitarist
    • Thread
    • dno fuse main main fuse
    • Replies: 34
    • Forum: Electrician Talk
  4. Q

    Main fuse

    I know this will be an easy question for one of you, but i do industrial and commercial. Dads asked me to fit a new DB for him, how do i go about removing the main fuse in his house to isolate the board, can i just snip the security tag off and pull the fuse or i have got to get supply board out...
  5. S

    Main fuse rating

    Hi all I'm just filling in my test paper work but I can't fill in the section charteristics of primary supply overcurrent protective device because the main fuse is sealed and all it says on the outer casing is 100amp. Does anyone have the contact num for the electricity board so I can clarify...
    • schoe
    • Thread
    • fuse main main fuse paper rating
    • Replies: 3
    • Forum: UK Electrical Forum
  6. E

    blown main fuse

    just started a rewire and the main fuse has blown. whose job is it to replace this? do i get the customer to phone their supplier? or get one from the wholesalers?
  7. S

    Meter to main fuse

    Hi guys, is there a reg for how close meters have to be to the main fuse (bs1361)? Thanks
  8. O

    Main Fuse Recognition

    Is there anywhere, book on line etc where you can identify the different types of fuses. I have come across a few recently which have no identification numbers on them. The attached is a 100Amp main fuse but there are no other identification numbers on it. I assume it is a BS1361 but i dont know...
    • olsonn
    • Thread
    • attach bs1361 carrier fuse main main fuse
    • Replies: 2
    • Forum: Australia
  9. S

    Main Fuse ID Help

    Having trouble identifying the main fuse on a recent CU change ( 1939 Semi ) to put on EIC, it’s an Aeroflex Fluvent Type AFS 60A rated, dimensions are approx 78mm long by 17mm wide. Have tried DNO and are no help. Any help would be appreciated as I am unsure of the KA rating. Thanks
  10. S

    Main fuse help.

    on my installation the consumer unit is protected by a BS 88 fuse 100a, i was just looking in the on site guide and it says the rated short circuit capacity is 50 at 415 v.. when doing my PSC i got 1.6 ka and PEFC of 1.4ka does this mean my main fuse is to low to deal with possible prospective...
  11. A

    60 amp main fuse

    I'm doing a new installation in a 4 bedroom house,basicaly it's 60 amp main fuse,if the client will turn every light,every appliance&load the sockets,im sure 60 amp wil be not enough.i told that to a client that he needs an upgrade from edf, but he says he doesn't want to because it will take...
    • arturas
    • Thread
    • amp client diversity fuse main main fuse
    • Replies: 21
    • Forum: Australia
  12. C

    Identity of main fuse

    Can you help me identify this? Sorry the pic's rotated... the thick end is the bottom! TN-S arrangement, no markings on the case. Any help appreciated.
    • cymroaur
    • Thread
    • attach carrier fuse main main fuse
    • Replies: 7
    • Forum: Australia
  13. P

    Safe change consumer unit - main fuse seal question

    hi all so i have job this is my first consumer units replace job. i have a question about the best, safe way to remove old and fit new. i thint about pull out main fuse but they is sealing, so i think i cant touch ?? if i can i think this is the best waym but if i cant do this how i can pull...
    • poul
    • Thread
    • change consumer consumer unit fuse main main fuse question safe unit
    • Replies: 64
    • Forum: Australia
  14. D

    Pulling the main fuse?

    Hi following on from another thread is it Illegal to pull the DNO fuse, i always do, after all i am an electrician. ta
  15. Goody

    How to find the main fuse rating?

    I have a bit of hurdle; I couldn’t find the fuse rating on the main fuse box. Should I ring the DNO for this info? You see, I really don’t want to break the seal (law) to look inside. Thanks.
  16. Goody

    How to find the main fuse rating?

    I have a bit of hurdle; I couldn’t find the fuse rating on the main fuse box. Should I ring the DNO for this info? You see, I really don’t want to break the seal (law) to look inside. Thanks.
  17. D

    Trouble finding main fuse!!!

    Just stated out and having installed a few CU's with success i went to a flat today and couldn't find the main fuse. Hoping to find it with the meter it wasn't there. This was next to the old fuse box under a panel. Any ideas??? No doubt you will but many of the old installs baffle me! Thanks
    • Danielwareham
    • Thread
    • finding flats fuse main main fuse phase probably supply trouble
    • Replies: 10
    • Forum: Australia
  18. J

    suppliers main fuse (100a)

    Hi, Im sure this has probablly already been posted on this forum elsewhere, however i have a question i would just like clearing up if any one can help. Looking at most domestic electrical supplies the main suppliers fuse is 100a and the main switch in the consumer unit is 63a (or less than...
    • j.capes
    • Thread
    • certain fuse main main fuse suppliers switch
    • Replies: 3
    • Forum: Australia
  19. C

    Meter tails and 100A main fuse

    Morning, Ive just changed a CU and the existing meter tails were 16mm. I have put new ones on that are 25mm, and connected these to the 16mm from the meter in a henley block. The flat has a 100A main fuse. I am going to use this as one of my locations for my NIC assesment. Should I ask the...
    • CRAIGNEWHAM
    • Thread
    • block fuse installation main main fuse meter meter tails tails
    • Replies: 34
    • Forum: Australia
  20. C

    60A Main fuse & NIC assesment?

    I was in my brothers house yesterday as I am possibly going to do a job there for one of my NIC assesments, and he has a 100A main switch, but the main fuse is only 60A (in a 100A holder). Ill check the size of the meter tails next week, but if they are suffecient, should we ask for the fuse to...

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