incoming

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  1. HappyHippyDad

    What does the incoming cable look like if the earthing is TNS?

    I never get to see the incoming cable supplying power to a domestic property. Does a TNCS earthing system usually have an incoming cable with one core which is the line and a sheath which is the neutral? What type of cable is used for TNS where the earth has its own conductor going back to...
  2. J

    overhead incoming supply TT TNCS?

    Looked at a rewire for a 5bed house reno this morning bit of a odd setup! so the house is supplied overhead- see pic 1- 2cores through the roof in loft into a 60a fuse then what looks like a 16mm T+E- but cpc (if one) is not used this travels some meters (at a guess 10m) down to the ground...
  3. R

    >2000 ohms on loop test?

    Hi guys, Was wondering if anyone could shed any light on why I would be getting >2000 ohms on my loop tests, on every circuit? I got .26 on the incoming reading, went to do the test on the cooker circuit and >2000, thought I'd try back at the consumer on the incoming and >2000 again, I'm using...
  4. D

    SMA 4000TL 'Insulation resistance' error

    I've recently found the green light flashing and the red light on on our SMA 4000TL with the message 'Insulation resistance, check generator' on the display. Checking the ERROROB2.CSV files I can see that this isn't the first time it has errored in this way, it has happened on odd occasions for...
  5. Adie moore

    rcd bust?

    strange goings-on or it might be me, this is what happens; • 3 lead loop test on final circuit = rcd trip • 3 lead loop test at board, outgoing side of rcd, all circuits off = rcd trip • 3 lead loop test at incoming side = rcd trip • rcd test at outgoing side= X.5 no trip X1 45ms X5 29ms...
  6. R

    Main Incoming Supply Cable To House

    Hi, I've just bought my first house, a Victorian terrace and it's well overdue an electrical upgrade. I plan to do this myself with the guidance of a friend who is a qualified electrician (though I am an industrial electrical and electronic design engineer, so am competent in some aspects, but...
  7. P

    Potential main incoming fuse issue

    Hello, I am new to the forum and I hope someone could help me with the following please I have a family member who lives at a very large property with an indoor swimming pool and hot tub. This however uses a lot of power its an old house so the original main incoming board is still intact...
    • Phillip100
    • Thread
    • fuse however incoming issue loose main phase potential power
    • Replies: 8
    • Forum: UK Electrical Forum
  8. S

    Incoming tail retaining clips

    Does anyone know where you can buy clips for the incoming tails like the DNO use (figure of eight design)? If not, what do you use to hold them back (SWA glads)? Sent ... using the force!!
  9. A

    Using pipe work to bond to incoming water

    I have recently come across a situation whereby instead of running a main equipotential bonding conductor from the MET to the incoming water someone had instead ran a short bond from the MET to some copper pipe in the mains cupboard and clamped it and then placed a bond on the pipe near the...
    • atm84
    • Thread
    • bonding conductor electrical work incoming pipe resistance using water work
    • Replies: 23
    • Forum: UK Electrical Forum
  10. H

    Incoming Gas cross bonded off cold water

    Doing a CU change in a flat, concrete floors and ceilings, just been decorated in hallways and bedrooms. Basically kitchen fitters ripped units out today and the bonding to the main gas has been cross bonded to the water behind units. Water is bonded back to the MET. However incoming water is...
  11. E

    No incoming fuse

    Hi, I own a flat, and the electric supplier want to replace the meter as its really old. They have sent round two different guys to swap the meter but couldn't proceed as they say they cant isolate the power. Ive attached some pictures of the board. Indeed there is no main fuse not that's...
    • everyidhasgone
    • Thread
    • attach communal fuse incoming meter where
    • Replies: 10
    • Forum: UK Electrical Forum
  12. D

    No Access to incoming meter supply in block of flats

    Was carrying out an eicr on a 2 bed flat. Unfortunately i was unable to gain access to the meter cupboard. What should i put down on the certificate? My gut says put it in the limitations but is this correct, or do i need to gain access ? Thanks Dave
  13. T

    mechanical protection for main incoming cable

    I Have been to look at a job today. It is a flat roof garage which has been built on to the side of the house at some point and now it is being converted into a living space. The issue is that the main incoming cable for the house comes in overhead and then down the old outside skin of the...
  14. 3

    earth voltage

    I am checking an install and noticed the voltage between line and earth is 190 volts. I checked incoming supply voltage with the main consumer unit isolated and am getting 220v l-n and l-e when I switch cu on voltage l-n is 220 volts l-e drops to 190 volts I have disconnected all circuits and...
    • 316
    • Thread
    • cooker earth incoming supply switch voltage volts
    • Replies: 4
    • Forum: UK Electrical Forum
  15. T

    Incoming telephone cable been cut by builder

    :90: So i have been doing a rewire on a 1600s property. Lovely customers but the job is dragging on abit as they are also having building work done. Text of the builder asking if he can cut a redundant telephone cable in a bedroom to which i said yes. Text of the customer that night saying...
    • Tidy Max
    • Thread
    • builder cable incoming phone telephone
    • Replies: 20
    • Forum: UK Electrical Forum
  16. ray-bentos

    BS951 clamp onto incoming supply SWA cable - DIY TNS?

    I recently came across an installation, very rough in practically all areas, however one thing caught my eye. The TNS earthing arrangement was via a BS951 clamp onto the armour of the incoming supply cable. This wasn't a lead supply cable (as I have seen before with BS951 clamps) it was SWA...
  17. D

    Equipotential bonding to incoming gas and water

    Recently carried out an eicr on a property. whilst looking around the property i couldnt see any earth connection to the incoming water or gas. But carrying out a continuity test with my r2 lead it proved there was continuity to the incoming gas pipe and incoming water from an outing going 10mm...
  18. W

    Main incoming earth bonding

    Hi, I recently had earth bonding to my water and gas supply (see attached pic). As I understand it, the bonding should be 10mm and the main incoming earth bonding should be 16mm. The contractor has explained to me that he used 10mm on the main incoming earth, because there was already a 6mm...
  19. The Solar King

    Multiple small systems on same building.

    Can someone keep me straight here. I am involved in a building conversion where seven small 0.9kw systems are going on the roof, one for each flat. One thought just struck me. Will they all work? The building has a common supply which then feeds each flat which has its own incomer, meter and CU...
  20. cprfenom

    Dumb question incoming

    Evening guys. I am sorry if this has been asked or if it is stupid. I understand the logic of not fusing the neutral, but what was the logic for fusing it in the first place? Kind regards, Chris

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