25mm

25mm

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  1. R

    25mm swa armour for cpc

    Hi all, Just planning a sub main to an outbuilding . It will be 80 metre run, buried direct on a 63amp fuse . So I am thinking of running 25mm swa but just been doing my calcs on whether I can use armour as Cpc. The outbuilding is going to be TT so no need of a bonding conductor on the...
  2. B

    I need a 25mm plain to 20mm screwed conduit adapter.

    Have an isolator switch with 20mm screwed entries into the bottom. Have existing 25mm conduit I want to run into it. Ideally I need a simple adapter, 25mm plain to 20mm screwed conduit adapter. Does this exist cause I can't google one anywhere.
  3. R

    Connect 25mm Adaptaflex to Galv Conduit

    I’m running a some Adaptaflex 25mm underground and I’m just wondering where the top of the Adaptaflex meets the Pavement how could I join that on to some 25mm Galv Conduit?
  4. laurence1995

    Can you fit 25mm conduit to a 20mm back box?

    Hello, Im really new to the world of conduit. I have some 25mm pvc conduit and cant for the life of me seem to fit back boxes with 25mm knockouts. Is there an adapter that fits a 25mm conduit in to a 20mm back box? Can i cut a 25mm hole in the back box? Do the 20mm male adapters allow for 25mm...
  5. K

    Taking 25mm tails over 3 metres

    Hi all, This week while wiring a very old farmhouse for heaters I noticed the incoming cu tails were very long, around 20 metres from the fuse and meter which is located in an adjacent farm building to the house.25mm tails (double insulated) leave the meter and go into a kmf switch (sorry I...
  6. B

    25mm split con sub main eicr code?

    Just done an EICR on a domestic, the sub main running from origin to cu is 25mm split con. Hard to know if its more than 50mm deep in walls etc without intrusive investigation. So could run with FI, but obv that doesn't deliver a satisfactory report. Bit of a tricky one as it would have complied...
  7. Gavin John Hyde

    25mm Aluminium SWA in domestic setting!

    Was asked to quote for a job today wiring up a summerhouse/playhouse in a garden to run the usual sockets, lights and garden tools etc... When on the job the guy who is a scrap dealer/collector points to a roll of 25mm Aluminium 4 core SWA and says can you use that to run down to the summer...
  8. M

    25mm armoured to 16mm earth conductor

    i have to send a 75meter run of a 3 core 25mm armoured from the meter to the fuse board. now due to the lenth i have to have a switched fuse and possibly a isolator on the otherside. due to the earth being 25mm i know alot of isolators only take 16mm. is the use of a helely block perfered to...
  9. M

    25mm Armour installation + home automation "control 4"

    im about to go down london to do a job. currently waiting on manweb to install the new cable going in + meter. they have put 100a fuse for a building with 3 story's + basement and all completely home automated "littrally everything is home automated lol" The isolater is roughly 8 meters away...
  10. C

    Meter tails at 25mm!

    Hello everybody. Forgive my ignorance but I have read for he past 3 days many posts regarding the meter tails in relation the a consumer unit upgrade. It seems that to today's standards (regulations shall I say) these must be at least 25mmCSA. In fact, in one of the of my many internet print...
  11. S

    25mm SWA!!

    hello guys i overheard a conversation last week about a supply to an outbuilding which will comprise of: 45A Shower, 32A Ring Final and 6A lighting. Total demand = 83A. outbuilding is 28Mtrs from main house and will have no extraneous conductive parts as the water feed will be plastic. now...
  12. bigspark17

    25mm galv conduit boxes

    got a job's lot left over for any industrial sparks out there interested.? end boxes/ T's/ throughs/ elbows.. any1 interested PM me :cool:
  13. J

    25mm cable can be thinner than 16 mm?

    A friend of mine replaced all electrical accessories and cables during renewal of his condo. But the main cable they installed has burned 2 days after they switced electric on. He rejected when he asked to his supplier for replacement. The supplier said the size choosen by electrician is wrong...
  14. L

    new consumer unit 25mm tails

    Hello Had a new consumer unit fitted recently. At end of day the electrician pointed out the tails from meter to CU were 16mm and the fuse at the supply head may well be 100 amps. We couldn't check this as the supply heads for the flats are in locked room and site manager chap wasn't around...
  15. P

    25mm PVC Channel

    I'm using lengths of 25mm PVC channel to bury some cables in plaster/breeze, but despite trying several nail sizes, the channel keeps splitting & cracking when I secure it. What nails are recommended to avoid this please. Paul
  16. A

    25mm 5 core armoured and kva

    Hi all i went to look at a job where another electrician has installed the 25mm armoured to a 3 phase board supplying a commercial kitchen. The electrician has installed a 3 phase isolator at intake using 160 a fuses. I was wondering the max 25 mm run surface for about 20 meters also the co...
  17. 1

    25mm 4c swa for sale

    Hi, I have a brand new drum of 4 core 25mm swa available for sale 116 metres unused on a job and another around 80 metres, if anyones interested please message me! cheers, JB
  18. W

    25mm armoured

    was just wondering if this was the correct size, any help would be appreciative a 25 mm armoured with a run of about 25 metres , ambient temputure 25degrees, clipped on its own direct to a wall. it is feeding a supply of a 100 amp switch someone told me it should be downgraded to a 80 amp ...
  19. G

    smoke detecters 25mm away from ceiling?

    just checking through my books and smokeys have to be between 25 and 600mm away from the ceiling does that mean i have to mount them on those round spacer boxes? seems a bit silly to me youd think smokeys would be designed to fit on the ceiling am i wrong about this or am i right about these...
  20. S

    Why oh why 25mm meter tails?

    Does anyone understand the logic of 'mandating' 25mm meter tails when upgrading a CU, when the sizing of other cables are left to the electrician's discretion? I'm again having to explain to a little old lady with not a lot of money that she's need new meter tails with with tiny 6-way board...

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