dno

  1. A

    Meter Tail Length - Getting the Electrical/Mathematical Equations from the DNOs.

    Hi everyone, I'm new to this forum and this is my first post, so apologies if I get anything wrong. I do a lot of property redevelopments, and some landlords (myself included) prefer to put the elec and gas meters outside the property in meter boxes. This can cause issues, as often the only...
  2. A

    Earthing arrangement TNCS or TNS and the DNO

    Hi, I wish to establish what the earthing arrangement is, the cut-out has a label above it that says "PME System" and the earth cable disappears into the bottom of the cutout and then comes back out the bottom and connects onto the supply cable sheath. Reading some other forums people suggest...
  3. M

    DNO Cables

    Someone on here said once that there is no way that the DNO allow 100A supply per house, which obviously makes sense. So why do a lot of house have 100A main heads. Surely that means that the cables can take 100A or more otherwise cable would get hot before fuse went? Surely house have the...
  4. R

    One rule for DNO and another for us.

    Did a job yesterday where the DNO changed an overhead TT for a PME. As it was a long tails run, turned up with me switchfuse with a standard 80a fuse in it. Got told I'll have to put a 60 in because there's only an 80 in the main service fuse (even though it states 100 on the casing)...
    • rocker
    • Thread
    • another cable dno house tails
    • Replies: 7
    • Forum: UK Electrical Forum
  5. J

    Need dno telephone number.

    Hi All, I went to my uncle's today to test a socket in the cellar, which he thought may have been damp, due to the presence of mildew on the socket front. I was preparing to test the cellar socket and randomly plugged my 17th Multifunctional Meter into a socket and performed a Zs. 3.33ohms...
  6. B

    DNO - Geordies and Northeners..

    Hi fellow Geordies and Northerners, Northern power grid.. How you rate them? Has the misfortune to needing there services on a number of occasions and to be fair found them hard work.. Now the latest was, I have landed the tender for a lot of work in the area where a requirement is “ No...
  7. S

    Cost of 200m Wavcon 95 underground? DNO needed?

    Hi, We are planning to put a small house on our smallholding. We will need a power feed from the transformer/pole on our land next to the road. It has been suggested that 'Wavcon 95' cable might be used ... whatever that is! If we put a distribution box & meters next to the transformer, will...
    • Smallholder
    • Thread
    • cable cost dno needed supplier supply transformer underground
    • Replies: 4
    • Forum: UK Electrical Forum
  8. JD6400

    Changing a panel board with temporary DNO disconnection ?

    We have a a grain store refurb that needs completing , but in order to get a new panel board in on the 400a head we will need e-on to temporally disconnect the supply while the old one is removed and the new one is mounted and retailed . Has anyone else done this before and if so what sort of...
  9. Sam_Butler

    Getting hold of the DNO (ENWL)

    Any north west sparks have some kind of magic way to get Electricity North West (ENWL) to answer their phone? I'm trying to enquire as to the supply characteristics of a shop I'm testing, and spent all afternoon going through the same sequence of hold, hold, voicemail. In the end I left two...
  10. M

    dno fuse carrier

    Hi all I'm doing a condition report. I've just come across a really old tns dno fuse carrier basically it has 10mm line, and neutral single cables coming out and going into meter, these meter tails are protected by individual 3036 fuses in cut out with a 2.5mm wire, surely this would go down as...
  11. B

    Nice people at DNO Scottish Southern Electric

    Hi Today I got out my Megger 1730 that has recently repaired and was trying out the R1+R2 function. I know what the values of all the circuits are in my house as I rewired it last year. I completed a ze test and it came back at 2.97 ohms, bearing in mind this is a tns supply and the readings...
  12. S

    Dno

    Hi, I'm a recently qualified spark and I'm looking to do a little private house bashing work to tie me over when the industrial commercial stuff from the agencies goes quiet so I'm planning on joining a scam. I've done very little in the way of domestic work and most of the industrial and stuff...
    • Skyba
    • Thread
    • attach dno isolator seals stuff
    • Replies: 20
    • Forum: UK Electrical Forum
  13. T

    contactor fed straight from dno meter.

    Any 1 ever seen a contactor wired from dno meter which has 1.5 coming out meter for economy 7 to switch contactor, have these meters got a fuse in them to protect the cables.
    • toptrics
    • Thread
    • contactor dno meter straight
    • Replies: 1
    • Forum: UK Electrical Forum
  14. L

    DNO requesting 'test cert'

    Hi Guys, I have UK PN altering a service at a job for me, according to their paperwork they want: Before your meter can be connected,UK Power Networks, and those responsiblefor the electricity meter, require a completedElectrical Installation Completion Certificatein line with the current...
  15. Worcester

    2 x 3.68kW on two MPAN's or 7.36kW on one, Tale of a helpful DNO

    Interesting discussion today with WPD, (My favourite DN0 :) ) with regards to extending an existing 3.68kW system. One pole, two overhead wires (single phase) two connections at the top of the pole to two seperate supplies, one terminates at the base of the pole, the other 10 m from the base...
  16. ian.settle1

    Loss of DNO supply

    Don't do any off this type of work but got to thinking about the power cuts we had back in the 70's. If a building loses it's DNO supply what would happen to the PV system? Does it automatically shut down as it does not have reference voltage from the supply as the last thing you would want...
  17. O

    DNO Fitting Isolator

    Hi, anyone had the pleasure of having the DNO fit an isolator between the cutout and the consumer unit? I'd be grateful to hear of the costs involved and the amount of time it takes them to sort it. As we all know, only the DNO can pull the bomb so i'm curious as to costs of an isolator. While...
    • omega
    • Thread
    • dno fitting isolator meter meters power theres
    • Replies: 36
    • Forum: UK Electrical Forum
  18. S

    4kW now- addtional 4kw when approved by DNO

    Really quick one- If I install 4kW for a customer now but have a DNO request in for 8kW, can I install the 4kW under 15.44 and later on the additional 4kW under 13.99p?
  19. L

    The DNO

    So I had the horrendous task today of contacting UK Power Networks regarding replacing a cast iron cut out ... I made sure my phone had a full battery, I got a coffee, and took a seat ready for 2 hours on the phone to India. Well I never, I got through to the right department first time, they...
  20. G

    DNO fuses

    anyone know what the likely breaking capacity and fuse type is for the 250A bs88's the elecy board fit on a commercial supply intake ? cant check myself on the job i'm at without removing the cut-out chamber cover that has danger of death stickers all over it lol even i'm not reckless enough to...
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