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overhead

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  1. mechelec

    overhead supply

    I need to replace an ageing overhead supply cable (twin and earth existing!!) to an outbuilding that will be supported on a catenery wire. I was thinking of 4mm^2 h07rnf , Supertough or similar. will this be ok with regard to uv exposure etc. any problems with the above?
  2. W

    Earth electrode on TT System - can it run overhead on catenary wire ?

    Hi All , After looking at installation in an old cottage with TT Supply I have found that i need to install a new earth electrode and wire back to the consumer unit . However physically the only way to get the earth electrode in the ground would mean cabling the earth electrode overhead for a...
  3. C

    Overhead PME

    Hi I have recently come accross a couple of instances where the feed to the house is via Overhead cable, but is labled up at the service head as PME. In these instances should the supply be treated as a standard TNCS system - even though the supply is fed from overhead?:rolleyes:
  4. sparks1234

    Marina overhead cables

    we need to get a cable from one end of a boating marina to the other, buried is not possible and there are no walls to fix to, So the choice left would be to go overhead, Confusion reigns, reg no 709.521.1.5 says cables in free air suspended from or incorporateing a suport wire shall not be...
  5. D

    Overhead line question

    Hi all, Training to be a sparky, chap at work asked if its okay to run a feed cable overhead from his garage to his summerhouse, a distance of about 3 feet, he doesn't want to run it underground if he can help it because it means lifting the patio. I have found a bit in wiring regs '417.3...
  6. J

    Overhead PME

    Is it common to see overhead pme systems? I went to a job the other day which had an overhead supply. The main earthing terminal has the cable coming out of the enclosure and down the wall into the ground. The external earth loop was 0.26....I phoned the supply authority and apparently they...
  7. T

    Help needed - overhead wiring

    Hi all, I am new to all this forum stuff, so apologies if this is in the wrong place. I am doing a rewire and need to get to an outbuilding. The easiest way is to use a cetenary wire (concrete everywhere). I am going to use arctic flex but notice the regs say that PVC must be protected in...

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