through

  1. F

    Voltage through earth to desk

    I built a metal desk with wood top. I just wired in a 500W heat lamp on the desk. 13A plug goes to a single metalclad socket via 1.5mm2 3 core cable. Same cable then goes from socket to 1 way metalclad switch. Same cable then goes from switch to heat lamp. Earths are all connected to each...
  2. A

    Wiring a siren through a timer

    Looking some advice on wiring a siren through a timer to alert everyone to the conveyor belt running. They don't want it to delay the belts starting (stupid idea) they just want it to sound when the belt starts up as it's unguarded. I'm wiring it off a n/o contact on the push button. I'm trying...
  3. M

    Hi from newbie

    Hi to all I'm mark a customer advisor in the electrical department for a diy chain previously trained as an engineer about 25 years ago but didn't complete training through I'll health so went doing other jobs in the mean time then decided to redo the training so I can try and work for myself in...
  4. J

    installing downlights- wired in conduit

    Looking at a job tomorrow morning- where the customer wants pendants turned into LED down-lights in hall, bathroom and kitchen. He mentioned that there is a loft space above these areas but the existing lights are wired in steel conduit. How do you guys normally go about installing down-lights...
  5. gazdkw82

    Bs7681 wiring regs test

    I have this booked for January 9th. Iv just passed the 202 exam so now I'm going to dedicate my time in getting ready for this exam. I need some advice on the best ways to organise notes that I can stick on the book to aid locating specific information/sections. Only thing iv done so far is...
  6. N

    Who can issue a Minor Works cert?

    I have been through a time served electrical apprenticeship, achieved LV 3 2330, AM2, NVQ, and all other stuff to do with, 6 years ago. I do not not have test and inspect. I have always worked for large contracting companies, in the cushy side (maintenance) and have never had to supply certs for...
  7. O

    Not my handy work

    So there I was today up a ladder when I spotted this..... This roof is new and some sparky has drilled through it - sure its got some form of sealant - but through a brand new flat lead roof??
  8. S

    Qualified electrician looking to broaden network through an online world.

    Self employed electrician, broadening connections by entering the on line world and looking for fellow electricians support for those jobs that have me abit stumped.
  9. M

    Wiring through apartments

    I am just starting a new project with consists of multiple new apartments being put in place within a large single existing building. Due to the layout of the multiple storey building and the fact the apartments are already laid out and in situe there is only one mains riser capable of being put...
  10. H

    Terminal Box Wiring Coming Through Wall for Conduit

    hi is there a steel terminal box that caters for wires coming from inside to outside, all the terminal boxes i've found don't have holes at the back. i was just wondering what would be the correct way to feed a wire through the wall into a terminal box (then through conduit to a camera outside)...
  11. M

    Sub-main install urgent question

    Hi Everyone Looking for you knowledgeable people to help me out with question about the routing of sub-mains. UKPowerNetworks are soon to install a new 3-phase supply to an external meter box. This will supply two separately owned maisonettes (shared Freehold) - one on ground floor and the...
  12. cgfw201

    Drilled through a cable embedded in plaster, easy fix?

    Hi there Been a bit of a pillock and drilled through a cable when putting a shelf up. It powers the ceiling light in my kitchen and nothing else (pretty sure anyway). I've gone through the live wire but not the earth which is still safely encased in it's sheath. There's a small gap between...
  13. rolyberkin

    Speech Sync Issue Samsung

    Bought a new Freesat 55" Samsung TV and couldn't watch strictly tonight due to a noticeable speech sync/sound issue on HD. Any ideas what causes this, have updated firmware etc and issue seemed to go away once Michael McKintyre got on?
  14. bigspark17

    Concentric cable used as submain?

    Situation DNO supply into garage outside meter box, submain into house approx 10M in concentric cable. Fused down by 80 swfcu . I dont know the size but it has 7 neutral strands and approx same cpc strands. Any thoughts on this.? Is it ok? I would have thought ok as same if not very similar to...
  15. G

    Chasing cable in a ceiling

    I wonder if anyone can advise me about some work I have done in my living room in regard to the building regulations. I needed to install a light in the centre of the room. I could not access the joists from via the floorboards upstairs due to the fact a bathroom floor had recently been tiled...
  16. T

    Swa through scaffold

    My work is erecting a scaffold as part of rough cast project.There is a SWA on the house which is enclosed in steel capping. Does the scaffold require to be earthed as under fault conditions the scaffold would become live? It might be a concentric cable so my understanding of this is that if...
  17. Pete999

    Pete's Videos Route through a wall

    For al you inexperienced people out there
  18. Wes1000

    Home automation system enclosures

    hi guys, I'm looking for someone with some experience with home automation systems to give some advice on the enclosures. I haven't fitted any before and wondered if they, when fitted in to a din rail enclosure/cabinet, would fall under the catch all of 'switch gear' and have to be fitted in a...
  19. T

    Underfloor heating fault

    Hello, I have electric underfloor heating in our bedroom under ceramic tile. there are two systems wired to one touch screen stat, (1x15m & 1x5m) they were installed about 2 years ago and worked great for about 8 month. now the larger one does not heat up? i have tried wiring it direct to the...
  20. H

    RLC in Parallel - Calculating instead of Drawing

    Morning all, Last night at college we moved on to RLC circuits in parallel, the type you'd typically find in a fluorescent light to correct power factor. We drew out some parallelograms to work out the true current usage and power factor after adding a capacitor. The lecturer said that's all...
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