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dno

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  1. S

    Re rerouting mains and dno responsibility

    Good afternoon all, I have a client that is having works done on there front drive and the landscaper has stumbled across the mains supply cable 20cm or so in the ground. Unfortunately the cable is too high up to be able to high up and needs to be moved down, I had advised my client to talk...
  2. T

    Follow up on DNO complaint and earth terminal responsibilities

    Just to update on my witterings re DNO and unclear direction reponse regards maintaining/providing earthing point; P.S. this has been taken to committee and the following agreed I am told. Dear Mr Votigern (Name redacted) Since our conversation about this topic I’m concerned that you may be...
  3. Daniel Oake

    Guide for DNO supply, installers - worth a look to someone.

    Stumbled upon a guide that the installers and maintenance teams adhere to, contains codes for reporting etc, might be interesting. Scroll down to Page 8 onward. https://mocopa.org.uk/wp-content/uploads/2018/03/MOCOPA-guide-version-3.5.pdf
  4. Michaelwgroves

    Protecting DNO equipment

    A House of Multiple Occupation (HMO) officer inspecting a HMO for temporary accommodation has advised tenants might be tempted to play with DNO equipment as it's not in a locked cupboard. I'd be interested in your thoughts, my view is nothing to do with me, DNO install this and deem it to be...
  5. T

    I have advanced co-operation with DNO Western Power to be precise

    So attended a house (one of many) and the earthing arrangements fall far short of what is needed. No bonding such as gas bond the cable is there hanging around in the air by the gas meter. 8.75 ohm Zs at socket. More importantly the cut-out has no earth to attach to. However there is an earth...
  6. M

    Can I replace inverter for larger unit without informing DNO or FiT

    Hi, Looking on Ebay I can pick up a used inverter for a lot less than what the supplier is asking for a new different unit. Do I need to inform the FiT people or the DNO. when the FiT paperwork was filled in it had the model and serial number of the inverter, which would be different if...
  7. sevuk

    DNO or Dunnos? The frustration.

    I'n on a bit of a rant. I've known an electrician before who likes to call them the "dunnos." I've not often had to deal with them as I'm normally just a sub-contractor. Except some years ago I had to get I believe SSE out who were so easy to deal with I barely remembered it, the guy gave me a...
  8. R

    Sub-mains to Flat, DNO supply 30meters away

    I am looking at a job where the DNO supply is around 30 meters from the Consumer units. The SWA will be installed surface to the ground floor building up into the flats. It is 3 separate flats, with 3 DNO supplies. I am thinking that best method would to be put sub-mains for each flat with...
  9. KeenPensioner

    DNO fuse - who can remove it?

    Hi, as my profile says I'm not a sparky but I've wired up the odd light switch and socket! I know my limitations and take safety very seriously but I like learning. I have no intention of ever doing this but can someone explain who can remove the 100 amp fuse to a domestic CU. What is a...
  10. NDG Elecs

    Is this PME, the DNO day it's up to me to find out!

    Hi, Just a quick query for others views please. Customer had a brand new three phase supply put in in April. I have been called in to rectify the ---- poor work carried out so far. The first thing I noticed was there is no main earth. The 3P head has a green PME sticker, but there is no...
  11. 1

    Eicr earthing issue with dno

    Hi guys Advice again please went to carry out A eicr in a flat which is in an estate with about 40 plus flats. in the intake room went to check the condition of the supply 3phase tncs with a separate earth coming in or was coming in seems like somebody cut it off and nicked it phone the dno to...
  12. Spunkywads26

    Henley Block with DNO seal

    Looked at a job today and found something which I believe to be odd. TNCS system with tails out of the new smart meter into a small henley block. Then 1 set of tails only from the henley block into an old square d cu. The thing I found odd is that the henley block has what I assume is a DNO...
  13. M

    Pulling the dno fuse

    Hi all The other day a friend of mine who owns a restaurant lost power so I went to take a look for him as I was only around the corner. Upon arriving I found that the tails straight off the meter into the switch fuse had burnt out and one of them was hanging out the box (it was quite a mess...
  14. R

    Overhead Supply with PME, DNO?

    I have been called to a job that has an fault unrelated to this question. When conducting checks to earthing and Main Bonding I noticed the earthing arrangement has been converted to PME, there was also no main Bonding. I have attached a picture, I am a little sceptical to who has altered...
  15. T

    What would you say to DNO about the following...if anything?

    So asked to attend tripping RCD whenever cooker is plugged in. That bit was very simple, gas cooker with igniter plugged into extension. Soaked extension lead (fridge defrosted all over it and condensation from pots and pans etc.) removed it and plugged direct in to socket problem solved. I was...
  16. Spoon

    DNO price for moving their service cable & meter.

    Hi People. Please can you help. Yes I have tried a search but all I have found is that their web site should give a price. Anyhow.. enough waffling. A friend is going to convert their garage into a bedroom. The DNO supply and meter are in the garage. The hubby want to move it to the outside of...
  17. Gavin John Hyde

    Looped DNO supply? Any thoughts?

    Looking at a house today doing the pre-site visit and tests for a partial and maybe full rewire. The supply is what i think is known as a looped service. Not come across one and had to do work on it before. other than seeing them around and not much thought given to it. The supply comes in to...
  18. Gavin John Hyde

    DNO charges when needing isolator fitted.

    Spoke to the local DNO this week, as a job im quoting for needs an isolator fitted so i can run a small second CU from a henley block to supply an extension. I may also be running a supply to the separate garage in the foreseeable future. I only need them to either de-energise supply and i will...
  19. Gavin John Hyde

    dealing with the DNO

    Got a job lined up, the customer needs a new consumer unit and partial rewire as its a bit hit and miss and with joined circuits between both upstairs and downstairs ring circuits. and also the lighting circuit is just one rather than split into different floors. The consumer unit is a old...
  20. Cadgey123

    DNO maximum demand message.

    Just started doing my first block of flats as a Qualified supervisor. I have 5 flats and a landlords supply to wire up. Done my calculations a while back and told the DNO I would need require ADMD of 12.5 kva for each flat which I thought was reasonable, Considering I have 3 rings, 2...

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