dno

  1. J

    Dangerous DNO Head - Lucy Oxford

    Just a FYI. I called out UKPN this week to request a supply head inspection before a complete upgrade of their domestic installation. It turns out that following a nasty incident with one of these Lucy Oxford supply heads, UKPN will no longer even open them. Instead, UKPN is going to dig up the...
  2. O

    DNO cable to head flopping around next to a bed

    I found this in a property today, I've never seen the incoming cable to the head (above and the other side of this wall) just dangling in free space before, in a bedroom. It's normally in a wall cavity right? Boss said note it on the MWEIC, would you guys feel you had too notify someone?
  3. N

    25 ohms Zdb + same reading for all circuits

    Hi everyone, I have a particular job visited this morning, that on all circuits, at each point, i got a reading off around 25ohms for a earth fault loop impedance test(zs). I then thought to do the same at the DB for those circuits. Again, same reading was obtained. I then turned off the...
  4. R

    Solar Help setting up Export/Feed-in tariff after PV install

    Hi all I had my PV/Battery setup installed in May and since then all my excess PV is just fed back to the grid for free. When I initially tried to get setup on Octopus Energy they came back with this: "To correctly measure your export we have to get something called an export MPAN generated...
  5. N

    Merge 2 three phase DNO supplies

    Hi all, I was wondering if you could help me a sort out the problem. Is there any way (or device) to merge 2 three phase electrical supplies? We have 3x100A from DNO and getting 3x200A additional. Is it possible to do that without involving DNO ? The power is for new build 28 flats, we have...
  6. HappyHippyDad

    New supply to garage. DNO have not fitted fuse.

    My customer has had a completely new supply installed to his garage. The DNO has not put a fuse in the cut out though. I'm guessing he needs to contact the DNO to discuss? I realise it would be very easy to pop a fuse in, but apart from this not being allowed, I also wouldn't know the size of...
  7. M-B-Electrical-Services

    Correct process for meter tails upgrade and isolator install

    Hi guys, I hope you're all doing ok in this heat!! I have recently carried out an EICR on a domestic property where it failed miserably. The consumer unit is an old MEM metalclad built in the 70's and requires replacement. The meter tails both on the supplier's side and consumer's side are...
  8. E

    Appalling install... Am I missing DC isolators too? Help please!

    Hi all, I hope you can help me please. I had solar system installed nearly 2 months ago and my installer turned out to be cowboy despite having all necessary certification, Which trusted trader, you name it... They were already back to take the panels off, repair the roof and install panels...
  9. baldelectrician

    DNO lack of action- is this common

    I had a client who had a poor lateral supply and called out the DNO in 2009, SP Energy Networks attended and marked it as an urgent upgrade. She then called me about more work in February this year and told SP EN had not fixed the problem so she called again, someone looked and said the job...
  10. W

    Help Please! Need a little help with notifying DNO!

    Hi all Just about to carry out my first EV charger install at the end of the month and im filling out the DNO notification form Im just stuck on the section about 'has this service capacity been verified by the DNO?' I have undertaken a load survey and all in we are at about 80A so above the...
  11. B

    Solar installation - DNO limit

    Hi, I'm new here, having recently had nearly 13kWp of solar panels installed on a barn roof, feeding into two Solis inverters (covering about 10 kWp and 3kWp respectively). I'm on a single phase supply and was surprised when told that the DNO limited my export to 3.68kWp - if I had known...
  12. D

    UK Can anyone identify this DNO head?

    Hi all, We've just moved into a new house which was built circa 1950's, do we need to contact Western Power about the incoming main?
  13. Too_Wired

    What is the BS number is for this old DNO Crabtree enclosure?

    Hi, I completed an EICR at a customer home in the week and came across this old Crabtree DNO equipment in the meter cupboard. Just two questions really 1. Does anyone know what the BS number of this equipment is (See pictures) 2. Will the DNO replace it if the customer requests an isolator...
  14. Msitekkie

    UK TN-S Looped supply - earth upgrade. Need to isolate neighbour/refer to DNO?

    I have come across what I think is a looped supply - like a normal incomer but two of them coming up side by side. It's a TN-S arrangement with an earth cable looped between the two incomers and on the the consumer unit. Trouble is it's only about 1mm, although I got a decent ZE of 0.35. It...
  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. A

    Thoughts on DNO / Supply Cable

    Hi all, Some time last year a contractor who visited our house suggested that our mains supply cable coming into the house could be coated in asbestos containing materials but that it wouldnt be possible to sample it due to it being live electrics. He advised to contact the DNO for further...
  17. cliffed

    3 DNO in school buildings

    EICR finding 3 DNO supplies in main building. The front end of building 3p 100 amp TNS, middle Sp 100 amp TNS, other part Sp 100 amp TNCS. Water & Gas supplies are common to this building This been in situ for over 50 years, any comments
  18. S

    UK Consumer unit TT system far from DNO fuse

    Evening all, I’d appreciate your opinions here: I’m looking at an old (150 years+) stone house. Complete rewire and renovation. DNO fuse is currently where the master bedroom will be (upstairs). Client wants it to be moved to a more accessible location downstairs about 15m away depending on the...
  19. J

    Curious DNO MET on TT System

    Just completed an EICR which had an Unsatisfactory Report done earlier in the year by another Spark, i have a copy of the report and he's put the earthing system down as a TN-S and a ZE of 0.21. However as you can see the main earthing conductor (16mm) doesn't go to what appears to be a DNO MET...
  20. wwilts

    DNO cutout for 1 dwelling with 3 fuses all on same phase

    Objective: allow fast charging of EV (22 KW) DNO cutout has 3 100A fuses, but all 3 turned out to be on the same single phase How to still obtain 22 kW for fast charging of EVs? Rotary phase converter? Switched on only when needed? Other approaches?
Best EV Chargers
Best EV Chargers by Electrical2Go! The official electric vehicle charger supplier.

OFFICIAL SPONSORS

Electrical Goods - Electrical Tools - Brand Names Electrician Courses Green Electrical Goods PCB Way Electrical Goods - Electrical Tools - Brand Names Pushfit Wire Connectors Electric Underfloor Heating Electrician Courses
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc

Advert

YOUR Unread Posts

Advert

TrueNAS JBOD Storage Server

UK Tiling Forum | Tilers Forums
UK Tiling Forum by Tilers Forums UK
Plumbers Forums | Plumbing Advice | Gas Forum
Electrician Tips from Professional Electricians
JBOD Forums: a forum for JBOD storage server advice
JBOD Suppliers: JBOD Storage Server Supplies
Back
Top