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main fuse

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  1. J

    BS 1361 main fuse short circuit capacity/overload at ka ratings explained.

    Hi. I am an apprentice electrician, and was wondering if anyone could help me as I'm getting confused with something that's probably quite simple. If I am correct to work out the amps running though an appliance you do w/voltage. So 10kw/240v = approx 42amps. Of I'm correct in this? My boss...
  2. F

    Main fuse hot

    Just sitting down for tea and door bell goes neighbour tells me his main fuse is hot to touch and a smell of burning is present goes across and he's right burning smell and very warm main fuse so isolates consumer looking for any burning or loose cables in consumer all ok fuse is sealed but...
  3. C

    Main fuse upgrade and associated issues

    I'm due to qualify as a domestic installer soon, and my brother, who is fully qualified, will be doing most of this work. I have a 60A main fuse. I currently have a typical domestic installation, i.e. cooker, immersion etc, and one electric shower. Due to distances between hot/cold supply and...
  4. N

    main fuse cut-out

    Hi In 2009 I replaced a consumer unit at a property which 17 months later had a fire caused by the fuse cut-out. Does anyone have any advice, as I have a meeting next week with the 'claimants legals' Regards Nick
  5. D

    main fuse not a bs 1361

    hi can someone tell me what fuse this is please. is it a bs88? thanks
  6. D

    main fuse/ tails upgrade

    am now working on a property ( installing a second shower) due to the load change . 2 x 8.5 kw showers = 74 A And the main income only being 63A main fuse , 16mm tails. I need these upgraded . Do i need western power + the suppliers out to do both sides ? ( ie after /before the meter ? )...
  7. L

    Pulling the main fuse :/

    Hi guys i have been asked to change a consumer unit. I have been told that pulling the fuse is not illegal as the Yorkshire Electricity Board just don't have the men to come out and pull everybody fuses who need it doing anymore. i know this may cause debate and i will get the answer of "it was...
  8. J

    Repositioning Main Fuse and Meter - Domestic Property

    Hi, has anybody had any experience with repositioning the electrical meter and main fuse within a domestic property and the costs involved, thanks
  9. B

    Rewireable main fuse.

    I was changing a consumer unit today and the DNO's main cut-out was a porcelain rewireable fuse inside a hinged metal unit. There were no markings on the fuse-holder, and the fuse consisted of two strands of wire, approx 0.75mm dia each. I'm afraid I haven't seen one like this before. Can...
  10. BigSi

    Main Fuse Pulling

    Now being the good boy that I am, I don’t (or ever have), cut the main DNO seal and removed the fuse myself. I normally factor this into the estimation and explain the reason to the customer. I was also told by a meter installer for one of the energy companies, that when your meter is read, they...
  11. La Poste

    Accessible main fuse

    I have a guy who wants the main supply cable boxed in and hidden. This will leave a problem with accessibility of the main fuse in case of emergency. I was thinking of boxing the whole lot in but leaving a small square of wood over the area of the main fuse that can be opened easily. Maybe by...
  12. L

    Pulling Main Fuse

    Hi All, Obviously I have never pull the main fuse, but out of interest does anyone know where you can get the saftey inserts from... the orange/red ones the meter guys/DNO carry to 'plug' the hole whilst the fuse is pulled... Any links etc would be good........ just for reference obviously...
  13. B

    pulling main fuse

    I ain't seen one of these posts for a week or so I'm sure you will be missing it.. Pulling main fuse.. It's ok to pull if the following conditions are met right?? 1) its a Tuesday 2) its 9:32 3) your customer is called Doris 4) you have pink underware on 5) the attached seals do tricks
  14. W

    Breaking Main Fuse Seal..

    Hi everyone, I'm sure this topic has been risen plenty of times. I'm a qualified electrician and I am going to replace a consumer unit for a relative. I am not registered with NICEIC or NAPIT so will be getting it tested by the council. Can anyone explain the procedure for removing the main...
  15. K

    Main fuse rating

    Not an electrician but a reader of your forum, I had british gas around change my supply from 3 phase to single phase (used to be a pub now a domestic dwelling and my electrician advised just using single phase to reduce 415v across different points in the house) The British gas guy replaced...
  16. C

    Meter taisl & main fuse to change or not to change

    Hi All just did a EICR at a cafe with 2 * flats above. Separate supply for the cafe to the flats! Flats supply is split feeding a CU in communal hall cupboard which also feeds one of the flats via some mcb final circuits & a MCB distribution circuit to a CU within the flat! The other flat is...
  17. O

    Getting main fuse pulled??

    Hi guys, Ive had an absolute mare with this so thought i'd ask you guys... im trying to get the main fuse pulled from a meter ata clients house so that I can fit an isolator and change the CU, (although the CU will be done at a later date). Ive been going around the houses trying to get...
  18. R

    Main Fuse ID

    Hi guys . Got a main 80amp fuse with just BS 1361 -1978. Type R Wondered what the rated KA is for one these? Is this a type I or II ? even though it says Type R.. Never seen one before... hope you all well and good.
  19. 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...
  20. 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...

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