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  1. S

    SWA/SY cable in a fibre duct

    OK. I can already feel the eyes rolling I am working in a yard where we are having trouble with vandalism. There is absolutely no way of getting a cable (easily) down the to front gate, as the perimeter is hedging and the car park is concreted entirely. The ONLY duct to the gate from the...
  2. cliffed

    Swa armouring let it be Earth

    How come some qualified electricians will argue & argue about earthing the armouring of the cable. Seen many jobs where they use plastic junction boxes & no earth continuity on the armouring. Regardless of how many cores are used it still needs earthing. Their biggest argument is it’s only for...
  3. M

    Where is the correct place to terminate a seperate earth ran with a SWA ??

    Hi all. I have noticed there are two schools of thought here when running a separate earth with a SWA to a large DB, where is the correct place to terminate the earth ? . We can go straight in to the internal copper earth bar as we have spare unnumbered holes for it , or we can lug it and go on...
  4. S

    SWA protection to car charger query

    Qualified electrician has installed Zappi car charger outside house. Grid incoming goes to DNO cutout then to SPD then to meter then to henley block then to RCCB then to SWA cable out wall and to charger mounted on outside wall (about 4m length SWA). I just learnt that RCCB gives no overcurrent...
  5. T

    Advice on cable for EV Charge Point Cable

    Just taken deilvery of an Electric Car (Mini Electric) and so doing some research into installing a charge point. Supply is a standard Single Phase and I have appointments booked with my supplier and DNO to upgrade meter tails and cutout fuse respectively. I'll get a spark to do all the...
  6. S

    Correct way of routing SWA supply for flats ?

    Hi Fellow electricians, I’m recently qualified and I would like clarification on swa supplies for flats, my boss says this is okay but I’m not sure. So my question is if my supply is downstairs can I run my SWA through joists under floor boards and stud wall cavities without rcd protection. it...
  7. I

    Suitability of SWA armouring as CPC

    https://gadsolutions.biz/regulations/swa-as-the-cpc Anyone know how reliable the tables on this website are for determining whether the armouring of a cable can be used as it's earth? Not too sure how old the page of the website is so could have changed since it was made or could have been...
  8. naylorpd

    Stripping SWA for copper

    I'm in Azerbaijan, and in our company store we have a number of drums of cable, all upwards of 5 years old and basically unsaleable. We're looking at the possibility of selling for scrap and the usual question is whether to sell it as-is or to strip it ourselves down to bare copper.The selling...
  9. Dartlec

    Feed to flat in escape route - best option?

    I have a job coming up where I likely need to replace old twin and earth (imperial size) feeding one, perhaps two flats in a 3 storey converted building. The ground floor is a separate front entrance, the upper flats have a side entrance with stairwell, which is protected with smoke and EL...
  10. kesterlester

    Are many potential uses of SWA **UNEQUAL** tee connectors illegal?

    It seems to be easy, these days, to buy fittings (often containing resin) that allow someone to tee into a pre-existing SWA cable. Some of these are equal tees, and some are designed so that the "new" branch cable has a smaller diameter than the main "through" SWA which was broken into. I'm...
  11. D

    Flylead to SWA without a banjo.

    I've been working my way through some EICR remedials in a theatre and one of them is to sort out a slightly high Zs on a submain. Thankfully whoever installed it put the banjo on the gland and even put a bolt through it, they just didn't add a flylead, so its going to be relatively easy to fix...
  12. A

    SWA banjo fly lead size

    Hi all. Could I ask some advice please regarding SWA banjo fly lead sizing. Can anyone explain what sizing or how you size the required earth size when: A) The armourings are not used as cpc B) When armourings are used as CPC? I’m still learning and can’t find anything explain I guess this...
  13. S

    Swa install to hot tub

    Hi, looking for some advice, 6mm swa allready installed to a hot tub Client now wants additions and my calcs say the original swa is allready too small. 26a but its120m run, im advising 16mm 2core. However the swa installed is 4 core so was thinking of doubling cores together to save on time/...
  14. B

    Swim spa on 6mm swa?

    Upgrading the Hot Tub to a Swim Spa, current power for the hot tub is 6mm 3x core swa to a 40amp mcb and 40amp rotary isolator. Cable is clipped to wall not buried. The swim spa we want has the following rating required: (copied from the spec page) 1x35A 230V/50Hz min. Heater is 3kw. Cable run...
  15. T

    Secondary consumer unit from SWA cable

    All of the work described below will be completed by a qualified electrician, I am just curious and using the info for planning!! I am planning a garage conversion. While I was bringing across services for water/gas etc I laid a 16mm2 3 core SWA between the main dwelling and the garage (all at...
  16. V

    RCD Test of SWA Cable

    Having a bit of a brain freeze moment. I have a 2-core SWA cable running to an outbuilding. The sheath is used to earth this cable back to the consumer unit in the house which is TNC-S, while the outbuilding has its own earth electrode (ie it's TT) protecting its Consumer Unit. That's to say...
  17. Vortigern

    Would you run Cat 6 armoured alongside SWA in garden?

    It is just convenient to cable tie the CAT6 cable onto the SWA. Does anyone think I would get significant signal noise? I have seen wads of cat5 normal lashed over suspended ceilings and fluors and never heard of anyone complaining about signal loss and that is over hundrends of units...
  18. J

    Multiple SWA Cables through ducting?

    I have had a kitchen extesion built on an old property (c.1810), which has an unusual consumer unit situation. Part of the property has only a first floor, with a driveway underneath (originally to get carts under for deliveries), with the consumer unit, meter, gas meter etc in a cupboard on the...
  19. Retroelectric

    Joining SWA With Lead Internal Sheath?

    Hi all. Been asked to join a couple of 25mm 4 core Swa's underground so am using a couple of torpedo's. This is probably a basic question but one of the cables has a inner lead sheath so you have. Insulation Armour Insulation Lead Sheath Insulation Double Insulated Cores Whats the deal with...
  20. SJFC288

    UK Fused Spur To Workshop

    I plan on using a fused spur to route power to a workshop using 10mm2 SWA off a regular 13Amp ring main socket. The workshop will have its own dedicated CU fitted. My question is, what size fused spur switch should I be using? Is a 13A sufficient?

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