copper

  1. M

    Twisted solid copper wire.

    Hello, When I bought my flat it came with all wiring installed (220V). When I looked at consumer unit I noticed that wiring is done with twisted solid copper wire. This means that they took 2x1.5mm as Live and 2x1.5mm as Neutral something like this but solid copper instead of stranded. I have...
  2. K

    IEC 61439-1 - Relationship between prospective fault current and diameter of copper wire

    Hi, I am currently reading through the standard IEC 61439-1 - Low-voltage swtichgear and controlgear assemblies - Part 1: General rules, and on Table 14 it is stated the "Relationship between prospective fault current and diameter of copper wire" (see picture attached). I don't understand why...
  3. electricman26

    Heating a Copper Tube via Nichrome

    Good afternoon, I wanted to heat up a .5" copper tube that is approximately 15cm long up to about 250 C. I would like to use nichrome to do this, but I know that I will have to use an insulator of some type between the nichrome and the copper tubing. Would JB Weld work? If I lathered the...
  4. JodyCowart

    2 Wire Copper circuit in older home

    Without running new wire or at least ground, next best is GFCI receptacles for limited protection. I know about a bootleg ground to fool a tester. I am not going there! Does each receptacle need a costly GFCI or can standard receptacles be used down stream on the load side of the first GFCI and...
  5. Solar Flare

    Can insulated copper wire handle temporary submersion?

    I had a 500' spool of insulated copper wire get submerged in a foot of still, fresh water for 48 hours (warehouse flood). Is it waterproof? Usable? Proper way to test it?
  6. S

    Do you have to pay tax on scrap copper?

    Do you have to pay tax on money received from weighing in copper from household cable, Swa etc? I guess you do as we have to pay tax on everything we do nowadays, I am just getting more and more jobs with loads of tat and need to weigh it in soon so just making sure I am doing my books right.
  7. naylorpd

    Stripping SWA for copper

    I'm in Azerbaijan, and in our company store we have a number of drums of cable, all upwards of 5 years old and basically unsaleable. We're looking at the possibility of selling for scrap and the usual question is whether to sell it as-is or to strip it ourselves down to bare copper.The selling...
  8. MTerzi

    electric on all the copper plumbing in the house

    I wonder if theres any good experienced electrician out there that can help me in enfield EN2 area with a problem. Im getting light electric shocks from all the taps (copper plumbing) in the house when i stand barefoot. even when the the main fuse is switched off. The shocks are very mild. I had...
  9. timhoward

    Maybe use copper Earth tape?

    I'm installing a new supply to a ceremoniously dumped welfare cabin. I can't see any legitimate reason not to apply section 717, welfare units are specifically mentioned and the thing is a mobile/transportable unit. In turn this dictates that it shouldn't be connected to a TN earth as to my...
  10. westward10

    Sifting for copper.

    I just cleaned the washing machine filter and in the tray I found I was sifting out the copper.
  11. A

    mercury slip rings used to replace copper slip rings in the uk

    Has anyone replace copper slip rings with mercury ones. At the present i have a heated roller with 5 copper slip rings on, the first 3 rings are for 3 phase heater inside the rollers, the last 2 are for the thermocouple temperature reader.. I have never used mercury slip rings before and are...
  12. J

    Exposed copper wire under the floorboards after rewire

    I have just had my house fully rewired. I lifted a few of the loose floorboards to clean and noticed at junctions there is a lot of exposed copper wire. Is this normal or even safe?ī
  13. M

    Connection between copper and titanium

    Hello, I am currently investigating how to connect copper busbars or cables to a titatium busbar on a DC voltage system. What are the requirements/standards?
  14. S

    What size is this sheathed copper imperial cable?

    Hi guys , trying to determine the size of this imperial cable, 17mm diameter , what could the circumference be if it were double insulated? And what would be the equivalent cable now to use?
    • Storm93
    • Thread
    • cable cable calculations cable size cable sizing cabling copper imperial size
    • Replies: 19
    • Forum: UK Electrical Forum
  15. S

    Cable size Aluminium cable

    Hello all, recently been asked to look some incoming power supplies for some future works , and I’m trying to determine the size of these incoming aluminium cables as it’s not something I work / see on a regular basis. Would anyone be able to give me some inside to what they believe the...
  16. V

    Tails inside consumer unit bare copper, not terminated correctly - C1 or C2 ?

    Ok, I'm in the middle of an EICR for a client. The tails are going into the consumer unit in separate holes (It's metal, so that's against the regs), and then inside the consumer unit they have been terminated in a really shoddy way with bare copper showing. Now copper showing on the tails is a...
  17. Gavin John Hyde

    Copper prices going up up and up again

    Went to scrap yard today, had a large sack, just shy of 20KG of stripped copper cables. Was shocked when he said £6 per KG... nice Brucy bonus for me there... Copper has gone up again after a little fall. from a job point of view it means the price of cables is going to go up even further. Did...
  18. J

    Copper pipes in crawlspace grounding

    Hello all, The water supply from my water meter to the house is rubber pipe, but my water lines in the crawlspace are copper . Is it code to have a ground wire from the main electrical panel to the copper lines, since there is no metallic pipe to the house, which would provide a ground source...
  19. gazdkw82

    Scrap copper cable strippers

    Iv got 2 large bins full of scrap cable. Mostly 2.5 t+e, 1.5 t+e, flexes and singles. I need to get rid but I'm unsure if to scrap as is or invest in a stripper to get the bright copper. What are people experiences with all the varying strippers available? Iv seen £15 things on ebay up to...
  20. D

    Need help finding a pure copper UTP cable (CCA vs pure copper UTP cables)

    Hello. I'm a DIY enthusiast and I made some home network installations, mainly for security cameras. For more than 2 years, I've been using this CCA utp cable. This one is clearly listed as CCA. At the time, I didn't pay attention to how it was made. A few weeks ago, I ran out of cable, so I...

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