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  1. 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...
  2. 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...
  3. EViS

    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...
  4. J

    Fire proof clips / cleats for SWA

    I need to do a horizontal run of SWA in a garage, first time doing it to 18th. Any suggestions / recommendations for fireproof clips for SWA?
  5. Martyn Campbell

    Domestic Wiring to Garage under floorboards SWA Required?

    Hi, My Garage is attached to my house and currently there is a standard 3 core cable running from my consumer in there. I have just had my consumer upgraded/replaced and starting renovations on the bedroom directly next to the garage so would like to replace the cable as well. As the cable...
  6. D

    2.5mm 2-core SWA for EV point?

    As the charging point must be outside the DB equipotential zone (separate earthing rod), are people using 2-core SWA for EV points and eathing via the armour?
  7. B

    Wiring In a Shed, advice needed on SWA route

    Hi All, I have a couple of questions regarding running SWA cable between the Internal House CU and The Shed New CU. The shed is basically being used as a home office and as such has a 6A lighting circuit and 16A Circuit for Socket outlets. Will be running a couple of computers and Monitors...


    Is there any requirement or logic to using fire-retardant cable cleats for SWA inside a wooden shed? There will be a 2 metre vertical run and a 3 metre horizontal run of 4mm 3 core SWA.
  9. Barnaby Stedman

    SWA - too short!!!!!!!!!!!!!!!!!

    been working on site today - came across someones bad calculations - there is 6mm swa in a ducting underground and it only comes out of the ducting at one end! i managed to dig down to the ducting and found the other end buried underground. So what is the best way of connecting two pieces of...
  10. Baddegg

    10mm swa to 10mm t&e....

    Need to join 10mm swa (2 core) to 10mm T&E within a wiska box.....
  11. SparkieMarky

    Termination of SWA into new style flush Consumer Units

    Does anyone have any thoughts on the best way to terminate an SWA into the new style flush CUs such as Hager's, BG's etc.? I ask as all seem to either employ oval or square knockouts, which is great for the surface boards when using truncking etc. but no great if you are trying to comply with...
  12. D

    Terminate SWA in Wiska or straight to Garage CU

    Hello all, I wanted to know the best approach of connecting to a Garage CU. Currently planning a small wiring project that i want to do in a few months time, when cash and time allows. My plan is to do the work myself and go through the proper channels of notifying the work to the local...
  13. O

    Domestic New SWA 3core cable 2.5mm2

    Hello, free Electrical Advice please. Before I call a sparkie to upgrade my consumer unit I thought I would bring my outside power up to date. I have a twin+earth 6.0m2 under my floor, running outside to my shed and into a 2 way consumer unit, lights and power. As far as I can remember this was...
  14. G

    Volt drop Question SWA

    Hello All, I’ve been asked to install a cable 170m in SWA, this is to be pulled through ducting. The cable is straight from the meter to an isolator in a beach hut. As the property is so small with little electrical appliances, I have accounted for 45A max current and deduced a 35mm2 SWA. Is...
  15. Fitzy

    Domestic SWA outer armour not earthed at either end.

    A friend at work asked me to take a look at the electrics in his shed, RCD would occasionally trip out, turned out to be a very loose neutral going in to the RCD. One thing I did notice though was that the 10MM2 SWA entered through the back entry point of both the shed & house CU and neither...
  16. V

    Advice needed on wiring for a log cabin

    Hi guys, Me and my partner have recently decided to build a log cabin at the back of her mum's house. The electrician that the company's working with, is planning on using a 316 swa as the main power cable, but I have concerns as the cabin will be used as a permanent dwelling for a while and...
  17. Barnaby Stedman

    SWA connections................

    What would be a recommended way of creating a 3-way connection in 4mm SWA? I have had a look at Hylec Tee connectors and other such things but what would people recommend? I am a bit limited for space as I am running the swa in a trunking which is shared with an MDPE pipe.
  18. T

    Joining 25mm SWA - two options?

    I was having a debate with my spark today about methods of joining above ground 3 core (E,L,N) 25mm SWA cable. We need to move the consumer unit and with it the meter tails (fused to 80A). This requires an extension of the tails as it is not possible to completely re-run them. He said that the...
  19. A

    SWA cleats complying to 18th edition?

    Good evening, I was wondering if anyone has seen SWA cleats that would comply with the 18th edition reg 521.10.202 (i.e. not liable to premature collapse etc...)? The data sheet for cleats produced by SWAonline say they are 'stable' between -350c and 1050c but they are still made of plastic...
  20. A

    Insulation resistance test on length of SWA cable

    Doing new supplies for a school new Shneider 3 phase & N MCCB panel board. 50mm 4 core SWA one end made off in the board earth fly lead from banjo to earth terminal. The other end gland made off in gland (fly lead not made off yet) 3 phases and neutral just hanging there. Done installation...