dno

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  1. M

    DNO not interested.

    So found a mains cut out in a very bad way. Top of the fuse cover had snapped off and the fuse was not pushed in fully. Rang the DNO as was changing the consumer unit and explained the situation that it was dangerous as the fuse was exposed and you could put your fingers directly on the live...
    • mort2376
    • Thread
    • attach dno earth interested their where
    • Replies: 19
    • Forum: UK Electrical Forum
  2. T

    Does DNO have to maintain/provide earth?

    Now in TT cases obviously not. Example, attended 50's type house. TNS looped through to next door. Nothing unusual there. Next doors earth is on this house's MET in 4 mm² and not the sheath of the incoming cable. Told DNO they said "We have no responsibility to supply an earth" In any event this...
  3. Smithy33

    Old DNO supply

    Hey guy's, Anyone ever been asked to price up a new db and found this as a main earth?
  4. V

    equipment in a dno meterbox

    Hi all can anyone tell me of there experience of fitting gear inside a dno meterbox....? ie a switch fuse for submain.. or switch fuse as required if your tails or submain to your consumer unit is more than 3m away from the cutout..? im aware that the dno's regs may say i cant fit gear in...
  5. L

    DNO maintenance on 11KV line

    Something that's always confused me and never been explained to me is when the DNO work on a 11KV line they clamp the 3 phases togeather and spike to ground. Then further down the line they do the same. This creates an alternative path for the electric to travel (through the ground) making the...
  6. UKMeterman

    Dno Hv Autorecloser Events Permitted Frequency

    Hi, I live out in the sticks, two independent HV Feeds from two separate primary substations with a pair of auto switches that control the single HV feed into the village. I have had 7 auto recloser events in the last 6 weeks, 3 of which in the last two weeks. At what point should UKPN get...
  7. B

    Type of DNO supply question

    I was installing a new control panel in a pumping station kiosk the other day. Sometimes I am required to `enter` the DNO supply to insert the earth cable on what is normally a TNCS system. To my surprise the supply was a single core with the armourings supplying the system earth but no neutral...
    • brenfox
    • Thread
    • cable concentric dno normally other question supply system type
    • Replies: 12
    • Forum: UK Electrical Forum
  8. R

    DNO upgrade 60 to 100amp

    Hi, Who is responsible for the cost of upgrading the supply to a property? The current fuse is 60amp, the property will need the 100amp upgrade. Sent from my SM-N910G using Tapatalk
  9. J

    Which is the DNO earth block? PME

    Hi All I would be interested to hear your opinions on this situation: It's a property which used to have the electricity meter in the middle of the house, the consumer unit is still there and there is still a cut out with a 100A fuse in it, a neutral earth block and a small label that says it...
  10. M

    New Supply from DNO

    Has anyone had dealings with ENWL regarding new supplies ? A customer has asked me to quote for splitting his house in 2 ( 2 20KVA single phase supplies ) and a new supply to his shop located on the same property ( 1 60KVA three Phase Supply ) ENWL have agreed to install a 100 KVA supply to a...
    • mort2376
    • Thread
    • dno ducting new supply their
    • Replies: 2
    • Forum: UK Electrical Forum
  11. A

    Ridiculous situation with the DNO and the MOP on a domestic install

    I have been trying to replace a CU on a domestic property. During my initial checks, there was no isolator and the earth was only 6mm on a TN-C-S. There is a label stuck to the cut out stating that it was PME. The cut out is a long brown Bakelite style with no access to the PME earth point...
  12. haptism

    DNO fuse 80amp, board dp 100amp

    Hi hope someone can help. If a small house's DNO's fuse is rated at 80amps, is it considered bad practice to fit a db with a 100amp dp switch ? As most db's have a 100amp switch I assume this is common practice, also I expect an 80 amp DNO fuse can handle alot more before it blows.
  13. N

    Nic Eic Assessment When Dno Haven't Been To Replace Earthing

    Hi All what a day ive had. ive just rewired a 2 bed house with TN-S arrangment. ive come to the testing and the ZE is reading 2.93 ohms. i installed new 16mm to the clamp that was originally on the incoming i cleaned up with the wire brush and tightened. still wouldnt bring it down. so ive...
    • Nuvo
    • Thread
    • assessment dno earthing eic haven't replace
    • Replies: 35
    • Forum: UK Electrical Forum
  14. S

    Blown DNO fuse replacement.

    Being an electrician that provides a 24 hour emergency service I often come across blown DNO fuses. Currently I always call the DNO to carry out the replacement, but it would enable me to get customers back on supply much quicker if could legally replace the DNO fuse myself. Can anyone advise...
  15. B

    DNO earthing arrangement

    A big Hi to all on here, please be gentle with me it my fist time !! It's only a quick one but do the DNO have a legal requirement to supply suitable earthing at the point of origin of metered supply. many thanks advance
  16. U

    BICC MK2 identifying dno cut out in domestic premises

    Hello all forum users. I am currently training as an electrician and have been able to identify some DNO cut out fuses rating but i have one in a rented property im staying in that has no identifying marks on it apart from BICC MK2. It looks old. My question is is this a standard pull out...
  17. the pict

    DNO connection team

    What is difficult about this, one building formally a pub,hotel, restaurant, with a 3 phase supply, the property at some time in the past ceased being a hotel but remained a pub restaurant, the rooms were converted in to 2 flats and supplied with one phase each from the existing 3 phases, a...
  18. B

    TT Earthing using DNO Rod at Transformer??

    Hi Guys, I was called out to a house in the countryside to do a shower replacement. The homeowner had already got the plumber to install the new shower, (an 8.5 kw to replace a broken 9.5 kw model) and wanted me to connect the shower an issue a Minor Works Cert. I do all my tests on the wiring...
  19. Darkwood

    Is this Legal - DNO homemade stand lol...

    Well can't say I'm shocked but I wonder what the meter guy was thinking while mounting this meter on this free standing backboard? Note the age of the incomer and the half sized N tail (First one) ... I hope its just a solid link in that fuse holder :whatchutalkingabout
  20. S

    DNO upgrade

    how easy / difficult is it to get DNO to upgrade from 60A to 100A main cut out im in swansea so swalec (i think)

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