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cores

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  1. S

    Bundled Phases

    Hey guys, Has anyone heard of bundling two phases together at the cut out. A Guy form the energy board was moving the main cut-out and told me they used to do it years ago. Does he mean 2 cores (in the same cable) on the same line incoming form the transformer? Surely you cant put two...
  2. A

    3 phase to single phase conversion

    Been asked to do a conversion of 3 phase 4 wire supply to a single phase . Swap 3ph mcb for appropriate single , identify two of the cores as brown and blue at both ends make the other two earth. Re calc volt drop for 230 . Any objections?
  3. G

    Acceptable readings for a NEW installation

    OK peeps I have just tested an 185 4 core SWA, and have got readings of 40 Megs on L2 to earth and L3 to earth. Although this is accepatable according to the regs, I feel it is unacceptable as a NEW installation, and indeed there is evidence of water on some of the switchgear, which clearly...
  4. driverman

    Eicr enclosure

    Hi guys, I'm not into EICR's but would like to ask your opinions on this situation. GPR enclosure with locked doors. Several SWA cables emerge from ground within the enclosure but glanded in free air. All glands have banjos and locknuts on and are all cross bonded together. The cores from the...
  5. D

    Security light wiring

    Firstly hello all, Secondly i'm not a spark just after some DIY advice so go easy :wink_smile: I'm trying to wire in an outside light with PIR. inside the house i have this set-up - Switched FCU - - - -WALL - - - - PIR light (3core) (3core) I would like the...
  6. J

    Future use cable coiled in CU?

    Hi all, Perhaps a very simple question with a very obvious answer but just to check... Full rewire scenario. Customer yet to renovate kitchen/dining room into a kitchen diner so wants all cables in trunking there only and chased through the rest of the house. Currently only a gas oven but...
  7. S

    long flex for boiler thermostat under floors

    On a domestic install a plumber has hooked up his boiler to the mains and then run a flex probably longer than 8 meters underneath floorboards to his thermostat. I'm doing the rewire, but this had happened while i was away on other things, i'd told him this wasnt good practice and needs to be a...
  8. B

    Does anyone know of a cable identification guide?

    Just wondered if there is a guide out there to identify csa of cable by visual inspection? I have read about confusion re tails eg 16mm or 25mm. or twin and earth etc?
  9. G

    Neutral earth fault

    This dreaded fault popped up again! Went to a newly installed job yesteday, which consisted of a ring circuit on a 32Amp 30Ma RCBO, where the sockets were of a module type, ie 2 sockets in a double gang box, but are actually wired individually within the 2 gang box. One of the sockets had the...
  10. C

    Phone extension

    Have been asked to connect a phone extension where cable with 3 twisted pairs has already been pulled in. First of all I thought phone line only had four wires? A phone jack only has 4 connections AFAIK anyway. The main question though is whether fitting a slave socket at each end with a jack...
  11. Top Cat

    Harmonisation of colours, PME & don't snip out cores!

    Changed a C/U today, when i took cover off found live = blue, neutral = red, with cable ties marked L & N in correct position. This was the same at meter so it must have been the meter guy! The meter had a test date of 2006, outside meter box probably fitted about same time. PME must have been...
  12. B

    Wiring for heating

    Hey guys , does anybody else find heating wiring diffucult to get your head around ? can someone give me some tips on it pleaseee
  13. M

    Heating

    Never done a heating before can anyone point me in right direction. Read stickies but keep confusing myself. In kitchen under boiler sfs over to programmer from here I have two 3 cores up to wiring centre and a five core flex to boiler , two more 3 cores off to two separate thermostats. On pipe...
  14. H

    multiple cores for same circuit?

    some plonker ordered and installed the wrong swa cable (too many cores not enough csa) but honestly the csa issue is only due to voltage drop. So I was wondering your opinions on using multiple cores together as parallel conductors? I've looked at the regs and it looks okay but I may have missed...
  15. A

    wiring a 3 phase plug - strange wire colours?

    Hi folks. We have recently purchased a 3 phase industrial machine, which county of origin is Germany. I need to wire in a 3 phase plug, but not sure which colour correcsponds to the L1, L2, L3 and Earth. The colours in the wire are Black, Red, Blue and Grey. Could anyone help with this...
  16. N

    Any tips on pulling single core cable into conduit

    We have today been pulling some single core cable into conduit and ran into a number of snags. Mainly the ball of knitting wool left after the majority of the cable had been pulled. We overcame this by adjusting the length of all cables to be the same when there was still only about three of...
  17. S

    240v and 24v in multicore cble

    Can anyone tell me if you can run 240v and 24v in a multicore swa i think i am right in saying if the cable rating of the 24v and 240v are the same then you can,maybe best to clearly label thecable voltages on the cores ?
  18. B

    Things to look out for when carrying out PIR

    I've been doing PIR's every day for the last 3 months so I thought I would start this thread to see what other sparks would suggest are good things to look out for. Seems to be the same faults on most installations, the most common ones I discover are- Switched lives not sleeved brown...
  19. S

    spare cores when using armoured help

    a panel which is fed by 2x 15o mm 4core armouds which is using the amoring for the eath has the 2 neutrall conducters tapped up inside the panel as no nuatral is required is thi ok or should they be connected to earth is there a regulation about spare cores or any recomendations help please
  20. johnboy6083

    old installation!

    The other day, i was installing a new circuit from an old 3ph DB, and i was working for an agency, subbing me out to a company who install specialist equipment (wont mention what because dont want repercussions). We were running SWA out of the board on tray to the items of equipment. when i saw...

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