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  1. J

    4" core cutter

    can anyone recommend a half decent 4" core cutter thanks in advance:)
  2. tigerpaul

    3 core SWA, black for cpc

    Now then, for a single phase circuit, using a 3 core SWA having brown black and grey conductors... I always think that you should sleeve the black with G+Y to use as earth, and sleeve the grey up with blue to use as neutral. I cant find it in the regs or any of my other books, but I thought...
  3. T

    2 core cable

    hi folks, just been to a job the day to change over 300 down lgts from low voltage to mains voltage l.e.d's. problem is there currently fed from 4 way trannies in 2 core flex. ive been told that it is fine to choc box the 2 core in with the mains to feed the mains dwn lgts as there class 2...
  4. cbw

    Core bits

    So time has come, everyone is sick of me asking them to drill me holes or borrow their cutter. Bought a cheap high power drill today and now need a core bit @117mm what would you buy and what should I avoid? THANKYOU!
  5. S

    2 circuits in 4 core swa?

    Just a quicky, Lighting circuit supplied by 4 core swa has become overloaded. Would there be anything wrong with splitting into 2 circuits and using the 4 cores for L and N and the steel armour for earth for both? all conductors would be identified with sleeving. Otherwise new cable needs...
  6. U

    4 Core SWA - 2 Cores RCD protected, the other 2 not ...

    Hi guys SWA feeding outside lighting and socket outlets etc. Set up like this: Single phase. L & N T&E out of MCB in main board to feed sperate enclosure with only an RCD module in. So L&N feeding an RCD. Then, 4 core SWA is glanded to this board. 2 of the cores (L/N) connect...
  7. K

    The RCD tripping when earth core touched - advice?

    Hi, I have been connected some two-way switches for an passageway light. After isolating the circuit started working on the new wiring for the switches, touched the earth core of the lighting cable on the supply side (disconnected) and the Consumer Unit RCD protecting all the circuits tripped...
  8. J

    Single core 16mm to run outdoors

    Hi all, I'm doing some work on a house with a pool, which has its own ccu about 20 meters from the main board. It currently doesn't have a main earth from the supply. Obviously this means I need to run a 16mm earth back to the supply, with the only option being an outdoor run along an exterior...
  9. S

    2 core or 3 core

    Hi everyone, just reading and giving myself examples of cables etc to work out cable selection and volt drop ( I know its Friday, but I have to keep reading or I will forget )!!! If for example you have an swa 3core (brown, grey, black), which , say your running to a supply from a DB board...
  10. O

    core sets

    can anyone recommend a good make of diamond cores, ive seen few different ones off ebay but not sur if spending more money means better cores
  11. S

    marcrist 117mm/ 4inch diamond core cutter

    marcist 4inch diamond core cutter new unused in box model ccu850x drills through lighlty reinforced,brick,block,engineering brick,concrete brick,natural stone,lintels,kalksandstein,poroton, and concrete pipes spec Ø117mm Marcrist CCU850X Diamond Core 165mm length Coupling Termination ½"...
  12. J

    Fan core drill

    Good evening, I am about to purchase a new SDS drill but today I was fitting an extractor and could have really done with a core drill. A few questions if I may.. Do you think this is man enough as it would be nice to have an allrounder instead of a dedicated core drill? Can anyone better this...
  13. S

    Core Drill

    Hi all Need to drill some 50mm holes through a wall What do you guys advise - should I look at buying a Diamond Core set, TCT or individual bits? I would need to use them with my Dewalt SDS or should I look for a cheap core drill as well ?? :)
  14. R

    SWA 2 core or 3 core?

    I dont do a lot of external works, however, I have been asked to install some power for general lighting and powerto an outbuilding with no extraneous conductive parts 15 meters from the main board and my thoughts were; The supply is tt, so 10mm 2 core swa from spare way in main board to CU in...
  15. A

    3 core colours ?

    hi fellas, if you wired some interlinked smoke alarms with 3 core cable what colour would you use for neutral. is there a specific way ? thanks acestu
  16. B

    Outdoor Spike Lighting with 3 Core...

    Hello, My cousin is an electrician and has connected 3 Core twin & Earth to a switch in the kitchen which is currently running a 150w PIR Security light at the side of my house. The 3 Core T&E runs out into my garden and left on the reel waiting for me to hook up 3 spike lights. I have bought...
  17. L

    multi core cable

    had an argument at work today about a 12 core cable and now hes made me unsure. as iv done this many times b4. i ran a 12 core cable in to a junction box from a control panel using 5 for lives 5 for neutrals and using a common earth fusing the lives and using disconect terminals for the neutrals...
  18. S

    CT Core

    What is double core CT? I mean that does double core CT has two secondary windings & a tripple core CT has three secondary windings? Moreover, how we display these windings on the diagram? I mean will a single core CT show two windings on its secondary or just one? How much windings will a...
  19. E

    Help Needed for core drill

    Hi does anyone use a good core drill? I am looking to purchase one for occasional use, mainly 4" holes for fans etc. I have seen 2 around the same price but wondered if they would be powerful enough. Any suggestions The first one is a bosch ...
  20. B

    T&E or Single Core?

    Gentlemen, I am adding a new ring and lighting circuit to an integral garage. I'll be taking a 2.5mm t&e cable from a 32A MCB at the main CU into the garage via underfloor, to a small remote CU (20A ring, 6Amp lighting mcb's) in the garage. The main CU will give RCD protection to the whole...

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