cable size

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  1. D

    Armoured cable size

    Hi I am having my garden landscaped and using the opportunity to put services in a trench in preparation for a garden studio/office build in the summer.May put a shower and water heater in as well.Approx 55 meters from house fuse board to office location. What size of armoured cable should I use ?
  2. P

    Volt drop calculation and cable size

    Hi A good friend of mine is having a large electrical installation carried out in his garden.Hes had 3 prices from various electrical contractors regrading the install. He is having a summer house built that will house 9kw 3 phase sauna 5kw hot tub 27kw 3 phase electric boiler A 32 amp ring...
  3. K

    UK Unsure SWA cable size I have?

    Hi guys, hopefully somebody can help. I have some driveway lamp posts with the armoured cable installed though the middle of the concrete pad. Unfortunately whoever installed this did a rubbish job as the concrete is not level and the posts look awful. I was going to cut the cable and dig out...
  4. HappyHippyDad

    Realistic cable size for voltage drop

    My customer currently has a shed at the bottom of his garden. The shed is approx 70m from the house as it is a huge garden. The shed has electrics going to it. They are from another shed 20m away on a 1.5mm cable. This shed is from a spur off a socket in the house on a 13A FCU. It is 2.5mm. So...
  5. lozarus

    Interesting Cable Size?

    Apologies if this is a bit "sad", or if it's easily answered! Whilst going about my business I happened across this old reel of RS flex - labelled as "0.15mm SQ 3 Core White". Obviously far below the minimum accepted size for appliance flex of 0.5mmsq. A part of me thought it may be for...
  6. T

    How to work out the total design load to find my swa cable size

    Hi all I am having trouble trying to work out the total load and swa cable size. I have 10 circuits in a outhouse 40 meters from the mains power supply 1 x lighting with 10 lights, 1 x lighting with 10 lights. 1 x 2.5mm radial for 2 heaters, 1 x 2.5mm radial for heater. 3 x 2.5mm socket rings...
  7. M

    Armoured cable size

    Hi, having a granny a erected in my garden and doing a lot of the the work myself. Looking to run a armoured cable feed into the anex so it's already for electrician to eventually wire up my question is as follows. Works out as 25m run I'll need from where sse feed in is to fuse box location...
  8. J

    Cable size

    Hi, Looking for advice, Doing a new build in a rural location and I’m having to run a mains electricity 500m to the nearest meter. Had a couple of quotes so far but there vary massively in price. The first quote the electrician was going to use 16mm cable which even I thought would be too...
  9. HappyHippyDad

    Cable size and how to earth this system?

    Morning.... I have a friend of a friend who is just looking for some advice regarding his 12V solar set up. It's a metal shed approx 5m x 3m. My 2 questions are: 1. Does the cable joining each of the 5 batteries have to be 50mm as well as the cable from battery to 3kW inverter? I'm sure it...
  10. B

    Cable size for spur socket

    Hi all, I have a spur socket on the upstairs landing from a ring socket in an adjacent bedroom. It is connected in 2.5mm T&E ; is this okay or should it be 4mm due to it being a double outlet hence it could supply 26A? It currently has only a decorative LED tree thing plugged in. The cable...
  11. C

    Bus duct - Earth cable Size

    Bus duct is used to transmit the power from the secondary of the transformer to the Main distribution board? If the cable is used instead of bus duct, we would size the ground cable approximately half the cross section area of the power cables according BS 7671 table. 54.7 If this is a bus...
  12. N

    Caravan site, cable size

    I am pricing a job to wire 21 new pitches for a caravan park. There will be a meter box beside each caravan with a 16a trip. I will split it into the 3 phases, so 7 caravans per phase. Im just trying to figure out how to calculate the cable size. Is it better to run a ring main to pick up 7...
  13. J

    Oven and hob cable size and isolating switches

    Thanks for adding me to the forum. I have done quite a bit of electrical work around the house adding sockets, and at our current house I put in some new ring mains and lighting circuits, all subject to third party certification and with the new consumer unit installed by a qualified...
  14. R

    mcb and cable size help

    Hello all I've just developed a wiring fault on the only ring main, after spending a few days attempting to find it and being pretty appalled by my findings. I have decided to re-wire the house. I have just spent all my spare money on a cruise so I guess I will have to get "Me sen ltd" to do...
  15. A

    Induction hob butyl cable size

    I am installing an induction hob to a dedicated 32a supply. The hob is rated at 20a. From the hob I am going to use a heat resistant butyl 3 core cable. The 2.5mm cable is rated at 24a, this seems a bit light to me, do you think I should use 4mm which is rated at 35a or will the 2.5mm be ok...
  16. A

    Commando Socket Cable Size

    Hi I Don't Touch Industrial / Commercial Electrics As I've Never Worked On The Stuff! … I Have Asked A Electrician That Does Work In This Sector (Of Who I've Never Used Before) To Wire In 2x Commando Sockets For A Customer I Have... My Question Is Are The Cable Sizes / Breakers Adequate For...
  17. 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...
  18. 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%...
  19. Les Macaulay

    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...
  20. 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...

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