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swa

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  1. A

    Meter tails issue

    Hi guys I'm installing a CU in a new build and have a couple of questions I need some guidance with regards to the meter tails. I need to drill a hole through the wall (for the meter tails) to access the main supplies which are located in the recessed box on the outside of the property. I am...
  2. K

    UK RCD keep tripping.

    Hi All.. I have a 16mm 3 core swa feed a 9way split board in shed, 30m from incomer .. from the split board I have run a 10mm 3 core swa to 2 way board for hot tub. This has a 63amp rcd in it.. the other end at the split board is also a 63amp rcd on its own of one side of the split board.. this...
  3. A

    UK 2armours supplies dist board

    Hi, wondering if anyone has seen this before. At a job today and the supply to the 3 phase dust board is 2x16mm armours. One has three phases in it the other armour has the neutral and earth. Bit rough I think is there any regs on this ? Any help would be great.
  4. 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...
  5. T

    SWA cleats for 3phase

    Does anyone know what size SWA cleat fits around 4 25mm tails and 16mm Earth? Need to hold some tails back for a 3phase board i have just done Cheers
  6. B

    Ethernet/Power SWA cables - can they share space ??

    Hello all...…. I would appreciate some advice please as there is lots of conflicting opinions on the interenet. I wondered if anyone new the actual UK rules and regs or sensibilities :) with regards to ethernet installation alongside power cables in a trench ( I appreciate the whole high...
  7. kenburgess

    SWA Glands : Poor Fit

    Background: Served my apprenticeship 1964 to 1969 with NORWEB but not been directly employed in the industry since then. I have just laid a 10mm 3 core SWA cable in a trench under the patio from the house to a detached garage 8.5m away. (cable run will be around 18m to 20m). There won’t be...
  8. B

    5 core SWA 120mm pvc cable

    Hello all So Im doing the groundwork to install a electrical kiosk and lay 250m approx. of cable to live up an off grid property. I am not an electrician i am only doing the hole digging and slab making for the kiosk - I will not be wiring anything in - not my thing :) a qualified company...
  9. T

    Ring main in 4Core SWA

    Evening all Has anyone ever wired a ring main in 4Core SWA and used the sheath as an earth? Just looking at wiring some sockets in an industrial unit and wondering whether to do it that way or do a 4mm radial
  10. G

    Burried SWA for a log cabin

    Hi all, Hope someone can give me clarity around the need to bury an SWA cable please. I've been asked to install an 4mm SWA from the main DB to a "to be built log cabin" at the end of the garden about 50m away, it will need to run along a fence for most the route (or underground). I called...
  11. cliffed

    School block Swa supply

    What code would you give for a Swa supply 3p/N,95mm. Supplies remote school block,2 storey,no main earth conductor,using sheath,the main earth bonding originates from this Swa,for this block,@ Main Panel board,& is 16 mm The main earth @ origin is 120mm,Main bonding 50mm. Cheers
  12. HappyHippyDad

    Tails or SWA?

    My customers meter is being moved. The distance to the consumer unit will be approx 10m. I'll be installing a metal switched fuse in the meter. I cannot run any cables up the outside as it is having some kind of wooden finish and the customer does not want anything else on show. I can only see...
  13. S

    SWA earthing

    I’ve seen debate in the past on here about whether to earth both ends of SWA at the glands even when using 3 core with a core as the cpc. My question is: If I gland the load end and earth the banjo there, then gland the supply end but run the 3 cores straight through the building skin so there...
  14. cliffed

    Terminating various Swa into Main Panel Board

    Installing panel board,swa’s from 70mm to 16mm,all sub mains,using extension cableways,but struggling to terminate in the top areas,anyone know a better way,than steel trunking across the top of board.
  15. cliffed

    Swa torpedo joint oh my

    Just wondering any of you guys had trouble with some of the ridiculously small joints they give you. celepack, 16mm 4c,70 mm 4c,Swa underground kits. Struggled today on the 70mm,fitted a bigger one for 120 +,
  16. L

    SWA gland earthing

    Hi all, Just having a chat with a customer who we do regular maintenance work for. They have had an extension and got another company in to do the electrics due to us not having the time. The main reason for the post is the installer has used self tapping screws on all the swa glands. Is there...
  17. G

    Insulation on swa in a board

    Hi gents Whilst I am qualified as an electrician I am a maintenance engineer so don't do much installation work hence seeking advice here. I recently installed a new 3ph distribution board for a new machine. As I don't have my testing and inspection ticket another person did the minor works for...
  18. HappyHippyDad

    Can I use the sheath of the SWA as the CPC in this example?

    Morning.. I have a garage fed by 4mm, 2 core SWA. It is a 25m run from the CU. Can I use the armour as the CPC? The Main house is TT. I have always used 3 core so have not come across this before. i am about to check my notes as I know I have information on this and will find the formula to...
  19. 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...
  20. E

    SWA Into Back Of Consumer Unit?

    We've got a new build with all the T&E, earths and 25mm SWA coming through one 60mm cutout in a stud wall. What's the neatest way of terminating the SWA? I'm not convinced that a gland with the earth tag and nut 'floating' loose within the CU, and the 'tails' then running as usual is going to...

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