incoming

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  1. banny07

    UK incoming power Supply

    Hi. Could anyone please help me with bs number of main Fuse in this picture? Dno have no record of this. Thanks
  2. T

    Safe isolation of rotary isolator when no incoming voltage present.

    Hi all, trying to work out the best way for proving safe isolation of a motor. Motor is fed from a contactor inside control panel, it then passes through a local isolator and then to the motor, the isolator has auxillary contacts so that when it is in the off position the contactor will not...
    • tomodo
    • Thread
    • incoming isolation isolator present rotary rotary isolator safe voltage when
    • Replies: 21
    • Forum: UK Electrical Forum
  3. N

    Incoming size cable ??

    Hi everyone, On a job at the moment and trying to Work out cable size needed for property supply. Lots going on and struggle to work out potential loads of new build not built yet. Loads 2 x ring main around 15 sockets Lighting circuits consisting of around 60 spotlights and outside...
  4. LouiseSJPP

    Solar and battery bank: how to intelligently limit draw from incoming supply?

    We have a 5.5kW incoming supply, which cannot practicably be upgraded due to our remote location in the mountains. Can I use a PV array and battery bank to augment this supply? We don't need lots of power, but with a 1.5kW water heater, a 2kW kettle and the odd 3kW power tool, we keep tripping...
  5. GeeWizz12

    When to isolate incoming supply to DB

    I always turn off main switch before removing cover or doing any work in a DB, but when should incoming supply be isolated ? When placing a clamp-on ammeter around an incoming phase conductor in a 3 phase board a spark to board casing occurred. Later found to be pre-existing damage to insulation...
  6. W

    wondering about this incoming before the distibution board

    whilst watching many a video in the middle of reading the many books on the journey to becoming a qualified sparky, i notice in a setup, that seems to have multiple main switches and fuses before the distribution board, as i am far from being qualified, let alone experienced, i was wondering if...
  7. I

    Bonding Size for Old Incoming Supply

    Incoming supply on our job comes into the building and then the tails from which go into a switched isolator with 200A fuses fitted. No idea what size the incoming fuses are or incoming conductor sizes. Would have to contact the DNO but not sure whether they would give that info to anyone or...
  8. I

    High incoming supply voltage EV charger shutting down

    Hello, I have a EV charger that is reporting over voltage and is unable to charge. the charger will operate up to 253V The solar inverter reports voltages below 253V and when the solar is shutdown and isolated the incoming supply reports voltages in excess 248V consistently, peaking at 256V...
  9. M

    UK Does this henley block on the incoming tails of TT have a fuse in?

  10. S

    Dno incoming tails too small?

    I've come across this incomer, looks like 10mm conductors. The dno has upgraded the meter and used a 100A fuse. So my question is, does this need reported or can I do whatever work I please along as I don't overload the 100A fuse 🤔
  11. J

    What is the incoming Voltage Before and After the Service Fuse?

    I know that after the Henley Block which houses the Service Mains fuse, the Voltage is 230v If we was to remove the fuse and Measure the incoming Live wire, would the Voltage still be 230v?
  12. P

    Who do is responsible for the incoming suppy

    I am doing a new consumer unit install on a second story ex council flat. I’ve notice the mains come in in metal conduit with no CPC. On checking further I’ve seen they have split the neutral before the meter and joined an earth cable onto it creating a pme at the fuse board. I believe this can...
  13. sythai

    BT Fibre..... incoming supply

    Hi Guys Just first fixing fixing a new build and master BT point needs to be in the basement plant room/ next to rack. BT incomer is overhead line, coming into property on far first floor corner. Opposite corner to property from basement - basically a long way away! Other ones we've done with...
  14. impish15

    UK Black cable off supplier's incoming cable?

    Hi, Any suggestions what this black cable is coming off the supply's incoming cable? Its a TN-S system, I thought it could be the earth conductor but the cable is black not green/yellow, plus it looks much smaller than 10mm2 plus there is already an earthing conductor coming off the sheath...
  15. A

    DNO question about incoming

    Trying to post a thread with normal terms like "switch" and get error message that I can only post three tags and 5 tags in total. I don't understand what I am doing wrong. Thanks. Adrian
  16. D

    BT incoming cable broken any ideas on how to reconnect to master terminal

    Ive managed to fluff up my bt incoming cable and from what i can find out there are two wires, one orange and one white that should go to terminals 2 and 5 on the master socket - anyone any ideas please?
  17. F

    Main incoming rcd tripping on any circuit

    My main incoming rcd is tripping out as soon as any load on any circuit. Have pulled each circuit out of the board live and neutral in turn but failed to isolate it to any specific circuit, is this likely to be the rcd at fault?
  18. E

    cannot find incoming water question

    Hello, yesterday I went to look at a small job, just an extra socket for a garage door. Bonding to gas is visible, where its fed from the CU in 10mm, but nothing to water. Long story short we couldnt find the incoming water anywhere despite looking in all usual places like under sink, under all...
  19. D

    6mm incoming earth

    Hi all This is a follow up from a previous thread I posted about 16mm tails. Just had two electricians round to quote for a board change, they were both happy to do it with 16mm tails but the incoming earth is only 6mm they have advised me to get onto the electricity supplier and upgrade the...
  20. T

    Incoming tails problem, loss of power in apartment

    Looking for some help with this one. Had a call to an apartment today, reporting a loss of power. Got to the job and sure enough nothing on the incoming tails. Went to the meter cupboard where we have a 3 phase incomer, going to banks of BS5419 100a isolators, then to the meter, then to a DP...
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