fuses

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  1. R

    bs 1361 fuses service head

    o.k. bs 1361 fuses have earth fault loop impedance times as follows 80A-0.40ohms 100A-0.29ohms (yes based on 80% values, 5 secs distribution) In a TNS you can goto a max 0.8ohms Ze so even if you use the smallest rated fuse in your service head, 60A still max only 0.56ohms and your Ze was...
  2. J

    BILL porcelain rewire able fuse holders 10 30amp 3 60 amp

    As title says I've got 3 60a and 10 30a bill fuses to sell any offers please private message will post out payment via PayPal unless collecting thank you for looking
    • Jonesy83
    • Thread
    • 30amp amp available fuse fuses porcelain rewire still these
    • Replies: 3
    • Forum: For Sale and Wanted Forum
  3. D

    Overcurrent in circuits

    Evening all...just a quick question. A customer was using a wallpaper stripper on a ring circuit, smoke started coming out of the back of the socket before the 32amp breaker tripped, what I don't understand is why the 13amp fuse in the plug didn't break? Could someone tell me why? Thanks
  4. W

    Undersized main tails eicr code

    Undertaking an eicr on a small commercial unit, tpn 100a 1361 main fuses to tpn dist board, 16mm tails i have only read the side of the fuse carriers not actually pulled the fuses to confirm i have clamp metered the supply at a roughly peak time in the premises and had <30A across any one...
  5. G

    100amp fuse 16mm tails

    can anyone tell me why some houses are fitted with 100amp fuses and only 16mm tails ? was this how they did it back in the day ?
  6. S

    Macintosh derby main fuses

    Im preparing a house Ive rewired for an niceic assesment. The supply requires upgrading from 60 to 80amp. Ive dpoken to the distributing comany who say it can be done. Should I get my supplier ti do this or can i do it myself. Would thry also reconect the tails for me to the new Cu. Im guessing...
  7. 7029 dave

    down grading of fuses

    If a domestic installation has 16mm tails from the consumer unit,lets say old 6way with 60amp double pole switch, and cut out 25mm tails100amp,customer does not want to upgrade fuse board and tails.do you think the dno would downgrade cut out?
  8. R

    Recently in PE, Red fuse carriers with tube not fuses

    Recently more than once in PE and even on here I've heard about sparks finding red main fuse carriers with only an aluminium tube inside, and not the expected fuse. now i come from an electricity company background, but never came across this in the 11 years I worked in that part of the...
    • Rampantchilli
    • Thread
    • fuse fuses mains metering recently red these
    • Replies: 6
    • Forum: UK Electrical Forum
  9. A

    5 kitchen sockets from 1 FSU

    I recently asked my electrician to add 4 new sockets to my kitchen, following a re-arrangement of my kitchen appliances. These supply a kettle, toaster, microwave, George foreman and a fridge. The issue he had was there was no ring main in a convenient place, only a spur to a single socket...
  10. B

    Cutting seals and pulling fuses, REALLY SORRY TO START THIS AGAIN!!!!!!!!!!!

    Hi, I work at a local council and our NIC assesment has brought up the age old problem. I know what should be done and what i have done thousands of times in the past, but some of our operatives are being funny about it. They are refusing to pull fuses as its "ILLEGAL" I want to put out a...
    • benieb
    • Thread
    • again council cutting fuse fuses local pulling really seals sorry start
    • Replies: 6
    • Forum: UK Electrical Forum
  11. M

    cut out fuses

    Hi all Which fuse am I most likely to come across on a domestic property cut out fuse 1361 or 88 I understand that an 88 comes with bolt holes or clips and 1361 is a bigger version of a 1362 fuse
    • m1ck_b87
    • Thread
    • fuse fuses never out waiting
    • Replies: 5
    • Forum: UK Electrical Forum
  12. R

    HELP! Fire alarm problem, tiny fuses, much frustration!

    Hello all, hoping someone here can help me out with something that is really getting under my skin. As part of some work ive done for a regular customer, I have installed 5 new smoke detectors to his existing system (he wants mto turn a big flat into bedsits). Now, I have limited experience...
  13. P

    max zs of large fuses

    BS7671 tables only go to certain size fuses eg how can I find max ZS of 400 amp BS88 - 2 on niceic test sheets they ask for a max value out of regs table I have only managed to find a busman fuse chart which differs been told by employer to use these values on sheets any input would help thanks
  14. P

    max zs of large fuses

    BS7671 tables only go to certain size fuses eg how can I find max ZS of 400 amp BS88 - 2 on niceic test sheets they ask for a max value out of regs table I have only managed to find a busman fuse chart which differs been told by employer to use these values on sheets any input would help thanks
  15. Y

    line diagram

    hello everyone. i need help here im now create kind of model of substation for my project .the device and component already given which is put in the panel. now im hope everyone can help me to check whether my single line diagram are correct? sorry the image
    • yeugrass
    • Thread
    • diagram fuses metering other series
    • Replies: 5
    • Forum: UK Electrical Forum
  16. C

    Silver in old bs88 fuses

    Hello I was told the other day that they used silver in the old BS88 fuses but he wasn't sure when they got phased out, can anyone shed light on this please if it true or not ?
  17. Elmer BeFuddled

    Bathroom Fans, Fuses and Isolators. A follow on

    Following on from a recent thread. My head started to hurt after someone posted (and I can't find the thread now, so I'll just have to quote what I copied, credits to whoever wrote this.). Being a Electrical Trainee I couldn't quite get me head around that so, as a picture is worth a thousand words, I drew it...
  18. M

    95 mm 4 core cable, 30 m run, in ducting under buildings backed up by 200 amp fuses

    Hi all, I commissioned the renewal of some mains intake equipment at a building that involved a full shut down. The building runs 24/7 and so a shut down is a VERY rare event. Upon completion of the works the contractor informed me that the 95mm 4 core cable feeding the building was being...
    • markc17
    • Thread
    • amp building buildings cable ducting fuse fuses under
    • Replies: 143
    • Forum: UK Electrical Forum
  19. S

    Fuse Identification

    Doing some work on a flat. Moving a light. What fuse type is in the picture. There is no marking on the fuse. Thanks.
  20. K

    ZS for Push button Wylex 3871 Type B fuses

    Hi, I have old style Wylex push button breakers at CU, and these are labelled as BS 3871, Type B and are 5 & 30 amps. I can not find any ZS values in the regs for these, but see these labelled as N/A. Any help apprecriated. Thanks
    • Ken77
    • Thread
    • button fuse fuses nominal these type b values voltage wylex
    • Replies: 13
    • Forum: UK Electrical Forum

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