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  1. A

    Stereo turns on, but no sound through the speakers?

    I recently upgraded my corsa d 2008 speakers, they were working fine and then out of nowhere the bass hits had a horrible squealing noise coming out of both speakers, it couldn’t play any lows. Shortly after the sound stops coming out all together, the stereo stays on but no sound whatsoever. I...
  2. T

    How would you know that you have had a power cut and electricity is coming through a generator instead of mains?

    Hi sorry for the vague question. I'm looking more of a starting point. What do you have in place to know whether you are running on mains power, UPS, or a backup generator? If the mains should fail how would you know, how can you monitor it, and when it comes back active how would you know...
  3. J

    Extension leads passing through walls

    I've come across a number of instances recently where the occupant of a house has run extension leads clipped on and passing through walls to provide additional sockets. One instance they had an extension lead of 4 plugs screwed onto their kitchen counter wall, plugged into one of the double...
  4. C

    Fishing Multiple Cables through Studs

    Afternoon all! I have what I think should be quite a common issue but can't seem to get my head round yet! For hidden cabling to a TV mount, I'd like to run 4 cables (a power cable, two HDMIs & one SCART) from the mount to a cabinet set (currently another project). So first problem, I know that...
  5. ETradesmen

    Very odd current through earthing.

    Good evening all! I was on site today relocating a consumer unit in a domestic property and got a hefty whack of a CPC... I have never seen this much leakage in 20 years of work. It is a TNS system, the main switch was off (I got a whack of a gas bond). I am unsure what to do with the...
  6. R

    Cable ran through wall back box but back box needs upgrading?

    I had a job today and i’m back at it again tomorrow. The customer wants a new chrome fitted USB socket installed in his kitchen, but the current metal back box is 25mm. I need to upgrade this back box to 35mm, came across this a million times, no problems at all. With this one though there...
  7. HappyHippyDad

    Running LV and ELV cables together through joists?

    I have quite a bit a cat5e to run through joists under floorboards for ethernet points around the house. Can this run in the same joists as the LV cables or do you make separate holes in the joists for the ELV cables? Cheers guys.
  8. HappyHippyDad

    Neighbours supply cables running through the ceiling void.

    I have been to look at a rewire. The builders have pretty much taken the house apart and I have found the neighbours supply cables hanging above my customers ceiling. The customers line supply cable comes into the top of the cutout and then another line supply comes out of the top and off to...
  9. M

    Grabbing power through dusk-to-dawn light

    Hi everyone - Homeowner with some electrical experience, but not enough to solve this. I am insulating the garage and decided to add three outlets since there is currently only one. The most convenient place to grab power is at an outdoor garage light that is at the end of a circuit. The light...
  10. L

    Mains supply coming through door frame

    We are having our 1930s house (recently purchased) rewired. We’ve noticed that the mains supply enters the house through our front door frame. Our electrician advised contacting the power network to recite but the prices of this look huge! Is there any workaround, such as moving the cable...
  11. J

    Looking for good quality yellow , red and blue Insulated through Crimps

    I have purchased several makes and in all case cables slip out. I still have some Old ones left and they seem much harder to co (more material) than the skanky new ones. Latest used from CEF: https://www.cef.co.uk/catalogue/products/695628 I am using a ratchet crimper that works fine with mu...
  12. A

    How do lines run through a set of flats?

    Hi, I was walking past a block of flats yesterday and I was just wondering if the electrical lines went into the house as a whole and formed some sort of hub in the centre before branching off into their own directions or if they just entered into the walls and went straight to their...
  13. W

    Wiring through joists in an insulated floor

    Hello, I'm about to start a complete house refurbishment, including rewiring and insulating between floors. As I understand it building regs require you to drill holes through the center of joists 0.25-0.4 along the span of the joist - this is going to put my cable run ~75cm away from the...
  14. J

    UK time clock

    Hi,I have fitted a timeclock throgh a contactor for some outside lights,and when I press the over ride on the time clock the lights only come on for a few seconds,then the contactor kicks,yet when I press from auto to over ride at the switch, they stay on, is this normal.I have read the...
  15. L

    Why does GFCI trip when running 110 and 220 through same conduit?

    I am currently working on wiring a hot tub. I currently have a 50a subpanel with 2 breakers(2 pole 30A and a 1 pole 20a). The wires I am using to run to the tub are THHN wires and are 10awg for the 220v, and 12awg for the 110v. The heater for the tub runs on 220v and the circulation pump, jet...
  16. J

    In your country, do you use pipe to run wire through very much?

    can you bend pipe?
  17. D

    UK Are blue through crimps allowed on ring circuit.

    I'm a trainee electrician and I was working with a qualified electrician extending a 32A ring circuit and we were using 2.5mm single conductors (CPC was 2.5mm aswell) going through PVC conduit and then going through steel trucking. And to connect the old ring conductors with the new extended...
  18. L

    Drilled through kitchen light cable repaired with crimps now none of my lights work up or downstairs

    My son was moving a cupboard for me & deliberately went diagonal from light switch to avoid cable. Then no bang or flash of light he just stopped & said I’ve went through a cable. After seeking advice on how to repair, we attempted to use cable crimps. Turned the power back on & not only did my...
  19. Les Macaulay

    Joint in switch box

    For a lighting circuit, Do you consider it bad practice to have joint in neutral at a switch box instead of separate joint box or 3-plate ceiling rose?
  20. S

    Can I avoid applying correction factor (Ci) when cable tray passes through a concrete wall?

    Hi This is about a design problem in an assignment. A cable basket containing several circuits passes horizontally through an internal concrete wall (100mm) and into a ceiling void where it provides lighting throughout the building. I'm trying to size the cables for the circuits and I'd...

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