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size

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  1. C

    RCD size

    Hi all I was wondering if there exists RCD´s (especially type A) which are smaller than the regular DIN rail mountable. It should preferably be a 4 pole version. I have had no luck finding any smaller versions online and I am wondering if they even do exist. It is needed for an EV-Charger...
  2. Y

    Cable size

    Hi everyone, Ive been asked by the customer to supply a 16mx8m metal shed, it will be used as for his hobby of working at old cars it will have 5 circuits, supply to another out building 50m away with a couple of sockets and 5 lights, prob 20amp be enough a ring main lighting circuit 6-8 led...
  3. G

    What size cable would you use????

    Hi all, Bit of a dilemma, hoping someone can help. Im running a supply to a garden out building, from a 40 amp RCD protected type b mcb at the main board. The first 8 meters or so are in twin and earth and will be in plastic conduit, the second lot of cable is swa, clipped direct to an outside...
  4. R

    UK What size transformer!

    Hi all, I have a new mixer it is 110v with 2000w motor and a 16amp socket, what Kva transformer do I need? I am not a sparks and electric is all magic to me!! Thanks
  5. P

    What cable size and breaker would I need for two extractor fans in a public toilet? 1.5mm 3 core and a 20amp rcbo?

    What size cable for 2 extractor fans in a public toilet?
  6. 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...
  7. 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...
  8. 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...
  9. 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
  10. 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...
  11. 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...
  12. 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...
  13. 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...
  14. 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 ?
  15. 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...
  16. 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?
  17. 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...
  18. 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?
  19. 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...
  20. 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.

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