size

  1. G

    Earth fly lead size & requirement

    Hi all, Hope you are all well and all is good! I am installing a sub board being fed by a 80A SP+N Metal Switch Fuse at source, this is feeding a 25mm 3 core SWA at a length of about 2 meters to the main DB (both boards are metal). I am being challenged in saying that I have to add an earth...
  2. R

    What size and what type of wire to use from house to shed my house is 165 feet away

    My shed already has a breaker box and is wired already. My house is 165 feet away my breaker box has a spare 20 amp. What size wire do I need to purchase I want to bury the wire aswell I will be using lights in the shed aswell as plug in to power tool all of which are 110 tools no 220 I will run...
  3. K

    Can ring circuit be bigger than 32A with bigger cable size??

    Hi everyone my questions is regarding a ring circuit wired in 2.5mm standard twin n earth with 32A MCB however my question is hypothetical if there are 2 laundry and 2 lets say tumblers so load is not suitable for the circuit and you want to upgrade but there is no space in consumer unit to...
  4. D

    Calculate 3 Phase MCB size

    Hi..I should probably know this but don't do too much 3 Phase stuff!! Can anyone give the formula for working out the size of a 3 phase MCB? I have a 12kw 3 Phase fryer to install. Cheers
  5. B

    UK Please help with fuse size :)

    Hiya, just a quick question, i have bought a 240V AC to 12V DC power supply (12v 10A 120W) i will post a pic of it, im looking at runing some 3 core flex with a standard uk plug on the end to the power supply for the live feed, what size fuse should i put in the plug? thanks in...
  6. NoMessCharley

    How to Calculate Size of Cut to Set Cable Tray

    I worked with cable tray about 40 years ago and remember I created a couple of simple formulae to work out how much triangular section of the cable tray to cut out to do various sets. I have tried to explain them below. The first one is when you know the angle you want to create and the second...
  7. C

    Cable Size for 100m Shed Run

    Can anyone recommend a good Cable Size calculator to use online? The old man wants me to order some 6mm 3 SWA to feed his shed that will go on to supply some sockets, fairy lights around the garden and other stuff, no power tools or high load activities. Cost is the mitigating factor here...
  8. A

    Cooker Cable Size / Wiring

    Hi All Just looking for a 2nd opinion on cable sizing / breaker for a old cooker. The customer has had a 'Cooker Engineer' out to advise that the cooker needs to be wired in 16mm cable to a cooker switch which is currently unused. The current setup is a 2.5mm HR flex on a plug top with a 13...
  9. Kuba

    Meter tails size

    What is the size of these meter tails? Are L&N going to the meter 32mm or 25mm and coming out are 25mm or 16mm? Permitiers are roughly 40mm of larger one and 35mm of smaller one. Thanks for your help ?
  10. C

    Earthing Conductor Size- Good?

    Alright, so what do you think of these CPC sizes in relation to the phase conductors? 90*C insulation, TN-C-S supply MCB / Live / CPC / Multiplier 15 - 2.08mm2 - 2.08mm2...
  11. P

    UK what size fuse should I use in a DC syatem?

    Hello if I have an appliance with a max current draw of 5.55A and an short circuit current of 6.11amps what size fuse should I use in a DC syatem?
    • pt12345
    • Thread
    • appliance circuit current fuse hello max short short circuit size
    • Replies: 3
    • Forum: UK Electrical Forum
  12. multimarcus

    5v 60A Power Supply for LED Panels — Choosing good cable size

    Hello everyone! I would like to power 8 LED RGB panels, each takes 5v input and according to the datasheet 20W. (I take every consumes about 4A x 8 approx 32A) I have a Power Supply from Meanwell. It has a single output of 5v and 60A, I could also opt for a slightly smaller one, 40A if better...
    • multimarcus
    • Thread
    • cable cable calculations cable size led panels power power supply psu size supply
    • Replies: 8
    • Forum: Lighting Forum
  13. O

    Fuse size for 12v hydraulic diverter valve

    Hi I’m about to wire up a hydraulic diverter valve to add a 3rd function in my 60hp tractor front end loader. I will draw power from my ignition but I’m wondering what size fuse I need to run?
  14. newfutile

    10mm Tails size

    During a recent EICR I have found 10 mm supply to the flat This is fed from a Locked ryefield DB though a meter then a double pole 100 amp Isolator , the outlet from the isolator is the 10mm 3 core possibly hightuff cable This is over sleeved into the isolator. My question is would the...
  15. P

    Cable and MCB size for oven and hob

    Good afternoon. I'm fitting a new kitchen with a new hob and oven. I hope to use just 1 isolation switch for both appliances. Together the wattage size is almost 11kW. Do I need 10mm cable with a 50A MCB? Is that right? Thanks.
  16. P

    Cable size

    Hi guys, can anyone help with this please. I've a new kitchen going in which will have an induction hob, main oven & a compact oven/ microwave. Induction hob is 32Amp & 7350W Main oven is 16Amp & 3450 W Compact oven 16Amp & 3650 W New wiring is going in so would it be ok to use 10mm cable...
  17. Mike Johnson

    Earth rod driving stud size

    Can anyone tell me the socket size of the head to a 5/8" Earth driving stud, the bolt that fits into the threaded joiner? Dims across the flats that is...
  18. P

    What do I need to know to calculate size of single phase motor?

    About 20 years ago I bought an old table saw from a local school. I only had single phase at the time so I changed the motor and switchgear as it was 450V. I'm thinking of buying a 3 phase 50s bandsaw and have the same problem, but I can't remember how to work out the size of the replacement...
  19. captaincaveman

    size of fused spur for garage electrics

    Hi gorgeous people. I've just been looking at a garage to re-establish the lights in it and put up a couple of LED battens but I have come across an uncommon set up which is making me scratch my head a bit. Any comments would be welcome... The garage is fed by 10m of swa 2.5mm from the lounge...
  20. R

    What size wire?

    I have a 200 Main Panel in my basement. I want to put a 100 subpanel in my attached garage that would be about 75 feet away. The sub will need 1 220v circuit for my air compressor. 1 50 amp circuit for my hot tub. 1 40 amp for my air handler. And 2 or 3 circuits for misc. wiring. Can I do this...
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