electrical wiring | Page 5

electrical wiring

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  1. Kingers

    16mm tails on 100A cut out

    Hello everyone, I have recently qualified, though yet to start practising, as an electrician. I have noticed, at my home, the tails from the (single phase) 100A mains cut out to the 100A rated meter, from the meter, to a 60A isolator and from the isolator to the antiquated fusebox are all...
  2. W

    Fire sealing an external hole?

    Hi, I'm drilling through the kitchen wall into the wooden leantoo. I'm using 20mm conduit through the hole, with a conduit box one side and a wiska box the other. Do I have to use any fire sealing? Whether inside the conduit or around it as it exits the brickwork? I found a link that said...
  3. telectrix

    Report.

    I need to do the customer a report on this. done buy a supposed "electrician" via Bathroom installers. This SWA is for a 9.5kW shower. apart from the SWA armour not being earthed, the black core is used as cpc but no Gn/Y ID. joins in loftto T/E in a broken adaptable box with 30A 3 pole choc...
  4. S

    Using SY cable in a fixed installation

    Hi, got a job that’s coming up which involves putting electricity to a wagon that’s half way down a field from someone’s house. They want it so it’s like a caravan, so they can disconnect the power lead whenever they want and move the wagon around. There’s only 2 circuits in the wagon; 4 lights...
  5. M

    Dividing radial off FCU. Is it ok?

    I have a radial running from the CU to an FCU then to 2 outside sockets. Can I add another socket going from the 1st in another direction? I have included a diagram. thanks for the help people :)
  6. W

    Bonding Metal Railing

    Hi, I'm taking swa out of the shed and fitting it along a metal fence with metal fixing band. Swa goes into a wiska box then flex from the box to a light that's bolted to the metal fence. Circuit is protected by rcd. Does the fence need to be bonded at all? I'm guessing it's an extraneous...
  7. A

    What is this?

    Hi all, I was looking at a CU today and couldn’t help noticing it had two supply cables. Does anyone know if this is a DNO loop system from one property to the next (I know the photo isn’t the best). The board is located near the entrance to the property and it is a semi detached house.
  8. S

    Ryefield board

    Hoping to install (if things get back to normalish) a Ryefield board on a job soon. Haven’t installed one before, according to the drawing from UKPN, the meters will be after the ryefield board - will the suppliers do their own tails into the ryefield board or will I have to supply that? Seems a...
  9. N

    Should a shower isolator have a flickering dim light when off?

    Hi, I'm not an electrician, but wanted to ask for some professional opinions. My parent's shower isolator stopped working, so they enlisted the help of someone who they say is a 'qualified electrician'... Anyway, the neon is flickering when in the off position, and a brighter (non-flickering)...
  10. R

    2780kw ovens

    My cooker was wired to a 13a socket in the space behind the oven in a Persimmon new build, wooden construction. Some idiot cut the insulation back and reduced the strands in order to connect it, The fuse heated up. The 15 amp cable arced away but the fuse is still intact. Surely this is not to...
  11. Pretty Mouth

    Why are main protective bonding conductors sized as they are

    Hi all. Hope you are all well and virus-free. This question is not how to select main protective bonding conductor sizes according to the regulations. That I understand how to do. What I am asking is: Why do the regulations require such a large CSA for Main Protective Bonding conductors...
  12. A

    Minimum earth for tncs

    Hi all, need some help as I'm having a blank. Replacing a consumer unit on a tncs that currently has a run of 2.5 metre tails 16mm tails and 10mm earth. I don't want to waste money for no reason replacing them if not necessary, I know a lot of people would fit 25mm and 16mm earth but the supply...
  13. U

    Am I being scammed?

    Hey all! hope this is the right place for this type of questions! I have a new phev coming in a couple of weeks and as such I need to get a power outlet to plug in the charging cable. I live in an apartment building and have a private parking slot and a private storage room with its own...
  14. B

    Holes through joists

    Hi all Question regarding the amount of cables through holes in joists. Is there a set amount that you should stick to, or does it not matter how many cables are through a joist hole. As long as there is movement in the cables, finger gaps side of cables, reason i asked as seen about 8/9 cables...
  15. Q

    Short circuit bypasses mcb and trips submain mcb

    Good evening A cable was loose in a ceiling void causing a short circuit this didn't trip the 10 amp 6ka type b mcb but tripped the 50 amp type b 6ka mcb that supplied that board back at the mains. I am wondering why this occurred other than me thinking the local protection isn't very...
  16. R

    Broken Immersion heater Element or electrical wiring problem?

    Hi there, DIY'er here I have an immersion heater that is not heating up water during the night on the cheap rate. The booster switch "top element" still works fine, but I can't work out if the bottom element is broken or there is something wrong with the supply of electricity to the element...
  17. M

    UK Homeowner - advice on my electrician's status, with regards to Part P regulations

    We have had a rear extension built on our home, and our builder arranged the electrician for the electric work required. I have established that the Electrician and his helper (apprentice/junior) are from a country to the east of Europe and are not currently registered as UK electricians and do...
  18. Mark Wright

    Short Circuit Line to Neutral where does the current go after the consumer unit?

    Short Circuit Line to Neutral where does the Current go after the consumer Unit? I assume it goes back to the Sub-Station where it is earthed but i'm trying to find this written in a official book etc but finding nothing. Thanks
  19. Pretty Mouth

    Lighting from fused spurs

    Evening all. Your thoughts please: I was helping out another spark today. The job was to spur from a ring final to a 13A fused spur, to feed several sockets and some lighting in a loft conversion. For the lights (regular common or garden pendant sets) he asked me to fuse down further to 3A...
  20. J

    Daughters house

    Hi i am new to the forum i am a industrial electrician in the water industry with 35 years experience I have my 18th editition and considering getting my part p , i want to rewire my daughters house would i be allowed to if i had my part p ? i am not a member of any professional organisations...

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