cable size

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  1. B

    Oil Boiler cable size

    hi all, just after a bit of advice have had a oil boiler fitted in a outhouse the company also wired it up. They took a 3amp fused spur off the the immersion spur ran 1.5mm 4 core 14 meters to outside junction box 3 meters of armored cable to another junction box then 5 meters in the out house...
    • buzz30
    • Thread
    • boiler cable cable size oil size
    • Replies: 22
    • Forum: UK Electrical Forum
  2. A

    Calculating Cable Size for Ring Circuit

    Hi All, I'm needing to calculate the cable size for a long ring main. Cable type will be SWA/LSF. The ring is feeding 5no Twin Sockets, on a 32A Type B RCBO, kicker is the length out and back is 300m. Using cable calculation tools can i half the length, 150m, half the current, 16A and allow 20%...
  3. L

    Unusual cable size entered in a PIR

    While looking over a PIR for a domestic flat, the approved electrician has entered for the Cooker circuit a cable size of 10sqmm but has scored thro this and entered 8sqmm. For the shower circuit he has entered a cable size of 8sqmm (no score out). So he must have intended a size of 8sqmm, but...
  4. C

    info of cable size i found out

    https://www.dungannonelectrical.co.uk/dun1-shop/pdf/cable/SWA.pdf the above link is for the manufacturer SWA cable installed on a PME exported into a second building using a 50mm twin SWA where there is main bonding to water pipes in place at 10mm. the cable is 50mm 6943X 50 which is 74mm...
  5. M

    TT system earth cable size.......

    Hi guys At a job doing a re wire and the electrician i was with is changing the earth cable over from 16mm to 6mm He says as its a tt system that it only needs a 6mm. Is this right?
  6. C

    Pat testing cable size

    Hi Guys I've just had a discussion with my boss about cable sizes when pat tesing 415v equipment. This is how i have been dealing with cable sizes. If i have an extension lead with 32A plugs and sockets on I always make sure it has a minimum of 4mm cable so that it is capable of carrying the...
  7. J

    Uncertainty over cable size

    What is the correct cable size on a radial circuit to feed kitchen sockets, except for the cooker,on a 32 amp fuse?
    • John Love
    • Thread
    • cable cable size size
    • Replies: 20
    • Forum: The Welcome Forum
  8. M

    PV Cable size.

    Hi All House been rewired and want to futurise for PV panel. What cable size is required back to consumer unit? Thks Martyn
  9. A

    Cable Size to feed consumer Unit

    Hi, I have a number of light industrial units on one site, one unit is very large and difficult to let, so we have split it and created a smaller 2500 sq ft unit. We now need to run a new supply to it and fit a new consumer unit, we normally fit 3 phase boards with room for a 16 amp and 32 amp...
  10. A

    Cooker supply 12kw correct cable size

    Hey guys I’ve run a 6mm for a cooker, runs about 10metres. The customers has changed her mind on the cooker and gone for a 12kw range. Went back today to finish off and saw this lovely surprise. I know you have to take diversity into account. But for my peace of mind. Would 6mm 32a MCB be fine...
    • Adamk
    • Thread
    • cable cable size cooker correct size supply
    • Replies: 64
    • Forum: UK Electrical Forum
  11. L

    Cable size issue with size of shower

    Hello Looking for some guidance please. Lived in current house just over a year now and had couple issues with our pull cord switch (45A) sticking. Also at its worst, experienced the neutral burnt out. My relative (industrial electrician) has put some potential issues across to me so was...
    • Linksy5
    • Thread
    • cable cable size issue rating shower size
    • Replies: 49
    • Forum: UK Electrical Forum
  12. L

    Voltage drop and cable size calculations.

    Hi, would like ta post a question about voltage drop in a cable. If I have a 230v single phase load of 500w with a 50 meter cable run reference method C . What would be the voltage drop in a 1.5mm2 ? From my calculations excluding pf I checked from the table the the voltage drop in mV/A/m of a...
    • Lawmal
    • Thread
    • cable cable size calculations size voltage voltage drop
    • Replies: 3
    • Forum: UK Electrical Forum
  13. D

    25kv generator cable size ???

    can anybody tell me what size sy cable I need for a 25kv 3 phase temp generator please to power a 3 phase machine lathe
    • Danl193
    • Thread
    • cable cable size generator size
    • Replies: 12
    • Forum: Electrician Forum
  14. J

    Cable size and protection - calculation

    If possible could anyone have a quick look over these steps I've made myself for cable sizing and the protection needed. Please let me know if I've missed out anything. I also couldn't find a definitive answer for maximum permitted voltage drop percentage for 3 phase. I think it was 5% and 8%...
    • Joenicholson1996
    • Thread
    • cable cable size calculation protection size
    • Replies: 2
    • Forum: UK Electrical Forum
  15. J

    Calculating cable size - start to finish

    Hello everyone, I would like it if anyone would be able to help me in listing the steps For choosing cable size. Starting from protective device from a boards 'Zs' value, all the way to the cable size. Thanks in advance
  16. Zdb

    Cooker circuit (cable size?)

    Hi guys, I've been given the task of installing a 32A commando socket w/ isolator, which will have a 27A oven plugged into it. It will be on a C32 30mA RCBO. The cable from the oven is 4mm which will have the 32a commando plug fitted to it. My question is, should I wire the 32A commando socket...
  17. MODECSOFT

    Video - Cable size calculation example

    In this video tutorial we demonstrate the steps needed to complete a comprehensive and accurate single cable size calculation using ElectricalOM Software in accordance with BS7671 IET wiring regulations.
    • MODECSOFT
    • Thread
    • cable cable size cable sizing calculation electrical videos electricalom example size software video
    • Replies: 2
    • Forum: UK Electrical Forum
  18. A

    Cable size

    Hi I have just built a garage at the front of my house and plan to run power to it. The intention is to use it as a workshop working on cars etc. I have a consumer unit at the front of the house and plan to run a cable from there underground to the garage consumer unit. A cable run of approx...
    • asj968
    • Thread
    • building cable cable size control garage size
    • Replies: 18
    • Forum: DIY Electrical Advice
  19. Pat H

    Cable size less than protective device rating

    Noted today an interesting comment on page 43 of christopher kitchers Practical guide to inspection, testing and certification of Electrical Installations ( a great book ) Under Shower curcuits he states: For this type of circuit it is possible to have a cable which has a current rating of less...
    • Pat H
    • Thread
    • cable cable size circuit device element fixed overload protection protective rating size
    • Replies: 4
    • Forum: UK Electrical Forum
  20. O

    Cable size check please

    Hi we are quoting for installing the main feed for a public swimming pool , its a 3 phase install with 3 no. 300 AMP main fuses . we will be installing a 315 3pn switched fused isolator then SWA on cable tray at a distance of 25 mtrs to the main board , i have allowed for 240 mm2 cable with 70...
    • Oliver Townsend
    • Thread
    • cable cable size check install installing please size smaller
    • Replies: 3
    • Forum: Commercial Electrical Advice

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