fuse

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  1. J

    Zs Values for BUSSMANN - ED355 FUSE BS88 355A 415VAC

    Hi All, Can anyone help with calculating a Zs value for the fuse described in the title. The fuse sizes in Fig 3A3(c) of the 18th edition wiring regulations do not have a 355A fuse and jumps from 315A fuse to 400A fuse. I've searched and searched but struggling to find an answer. Any help is...
  2. Shafiq Azmi

    Why MCB and Fuse cant protect Voltage Surge?

    Hi Everyone, I got some Power Module damaged cause by Voltage Surge. My device protected by 25A MCB and Fuse. Why my device still damage although its already have the protection? Any other way to prevent this from happening again?
  3. V

    combi microwave 2900w on switch fuse or 16a supply?

    when installing circuits protected my mcb's , i have always used the 80% rule. eg a lighting circuits where the load won't exceed 80% of the mcb rating. i have a combi microwave. max 2900 watts . 2900/230 = 12.6 Amps. does 80% apply to cartridge fuses? i guess this could be classed as a...
  4. ThisWire?

    LED mirror won't turn back on

    Hi, I was having trouble connecting the bluetooth on my mirror so reset as per the manual by turning off at the fusebox. After turning it back on, there is no longer any power to the lights on the mirror, however, the charging socket still works. What could this be and how can this be...
  5. BenSparky8

    Tails and fuse sizing for flats

    I’ve got a job to quote for turning 1 big flat into 2 smaller flats. The DNO are looking at installing new meters in the communal area. I need to take an SWA from each meter to the individual flats which one is around 15m and other is around 30m away. Would a 25mm 3 core swa be the best for...
  6. L

    DPDT switch burnt while off

    Hello, I wired a DPDT switch to my sunroof 12v DC motor. It was working ok and I was able to reverse the polarity of the motor to open and close the sunroof. However days later it started to burn when off, even though I hooked up a 20A fuse before the switch. I don't know if it's a short circuit...
  7. D

    Machine Safety Circuit: Fuse Integration Query

    Hello Everyone, I have a technical question that I hope someone can help clarify. We're currently facing an odd issue with a machine equipped with a safety relay and interlocks. The interlocks have been failing, seemingly due to an unstable or 'dirty' power supply. While the ideal solution...
  8. T

    Fuse Spur connection to C7

    Can I connect a figure of 8 power lead to fuse spur rather than plugging it in?
  9. CopiamElectrical

    Fuse board upgrade (PRIVATE)

    Hey guys, Im starting to put my company out there more. And this is all a new journey for me being an apprentice and now being qualified/2391-52 qualified as well. I was speaking to a friend about how he would go about a board change which I don’t agree with. tell customer a fixed price...
  10. S

    Fuse to Circuit Breaker Equivalence

    Replace of 45amp Fuse with 50amp CB on 10mm2 cable? Is this okay because of the 0.9 derating of fuse to overloads and because 10mm2 can handle 50Amp current. Installation in air equivalent double brick unit?
    • SparkyAus
    • Thread
    • ausie elec breaker circuit circuit breaker fuse
    • Replies: 5
    • Forum: Australia
  11. DyersEve726

    Poor contact on fuse box. Seeking replacement.

    Forgive me, for all my terminology is going to be wrong here. My home has an old fuse box that handles a small section of the house. They take the Bussmann T15 fuses. I've recently had a fuse blow in an unconventional way. The metal strip inside the fuse is still intact. Instead, it appears to...
  12. M

    UK Does this henley block on the incoming tails of TT have a fuse in?

  13. S

    Fuse box in private rental

    Hi, could anyone advise, this is the fuse box for the private rental flat above ours, its at the bottom of there stairs which is there only escape route, would this be upto spec, we had to have our flat completely rewired with new consumer unit after failing inspection, the owner of the upstairs...
  14. D

    Main fuse box problem

    Hi Everyone, I have a faulty smart meter, its broken since I moved in and I am putting all my effort to fix this, I am a tenant though. A technician from the supplier visited the property, inspected the meter and he said that he needs to access to main fuse box to replace the meter. We have...
  15. L

    Replace old fuse wires with circuit breaker?

    This appears in our Building & Pest report: "Safety switch installed, old fuse wire fuses still in use, recommend replace with circuit breakers." The home was built in the 1980s. Are old fuse wires dangerous? How dangerous are they? What are the risks of replacing with circuit breakers? Are...
  16. J

    What is the incoming Voltage Before and After the Service Fuse?

    I know that after the Henley Block which houses the Service Mains fuse, the Voltage is 230v If we was to remove the fuse and Measure the incoming Live wire, would the Voltage still be 230v?
  17. D

    Extra spur advice - fuse needed?

    Hi, I need to run a spur from a main ring socket, however, it already is supplying a spur ( double unused socket ). Is the only way to disconnect the unused spur? Or can I incorporate a fuse? What's the safe way to do this please? Thanks
  18. Skiplndn

    What is the age of fuse box.

    What is the age of General Fuse box No,723607 Class-CTL???
  19. A

    Sourcing BS88 Fuse Blocks

    I'm looking for fuse blocks/holders for some BS88 (actually BS88-4 I think) fuses from Eaton - models 50FE and 20CT. I just need a way to mount these in an electrical panel I'm building. I can find a few scant results for fuse blocks for other types of BS88 fuses, but never ones that fit these...
  20. M

    Help! Asbestos Fuse Panel Found

    I have old home that still has a fuse panel in the basement. However, last week I was trying to find the fuses for the lights and outlets upstairs but couldn't find anything . So I started poking around in the attic and found this...

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