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  1. C

    Pme

    Hi can someone explain PME for me please, is every house suppose to have it, I worked on building sites and just recently started doing domestic, Iv done few jobs but was told some earthing needs upgrading so obv assumed 10mm for gas and water but was told to look for a pme block????
  2. D

    PME protective conductor sizing?

    Need a little advice on this one. I rewired a house last year, all sorted and signed off, but I was told I would be coming back as there was a new extension planned. Unfortunately the building contractor would only use their own electrician so I lost the extension work, no worries. The customer...
  3. M

    Pme

    Laugh if you like, I am new to this, is a TN-S sytem classified as a PME system, also is it possible for domestic houses sharing the same supply (same street) to be a mix of TN-S and TN C-S
  4. B

    TT to PME Head Earth Terminal

    Why is it that when the DNO provide an earth at the head they fit a cover over the terminals that you cant get off unless you remove the cutout and cut the seals.Why cant they provide an earth block at the side of the head if you not supposed to access their terminal.They have supplied alot of...
  5. P

    Incomer upgrade on PME

    Will be starting a job soon after my assessment which will involve a two storey extension and an office area, also attached garage needing basic power. Went to look today and discuss requirements. The incomer is PME with a combined lead from service head to meter, this looks like it may be 6...
  6. DaveyD

    Voltage on PME

    Hi Just investigating a tingle - on our own utility sink! Its a TNC-S system, all circuits check out, bonding to utilities new and good and checks out OK, check earth contuinity on all appliances. Tingle still there when all circuits de-energised for over half and hour. ZE = 0.20 but has a...
  7. B

    PME & Metal Containers

    PME and exportng a supply to a metal container via a SWA. This has probably been talked about before, but how can you TT the exported installation when you are in a very sandy area. Can you just put notices up and rely on RCCB s for protection ?
  8. richy3333

    Caravan hook-ups, RCD's not tripping @5XIn and earthing (PME)

    Hi all. A local caravan site has asked me to test their RCD's. I popped in to speak to them about what they wanted and had a quick nosey around with a view to returning and undertaking the work. The 32 electric hook-ups are fed via a 3 phase system which splits into 3 circuits. Each...
  9. crawf

    pme

    can i export pme to a shed installation 35m away from C/U???
  10. C

    Pme

    Hi, new member here, I have aquestion obv on electrics. New connection to outbuilding, had a PME system installed, labelled like that by EON. Then Seimans metering installed the meter and an isolator. Now whilst I find an electrician, I had a CU installed. Do I now need to get EON back to break...
  11. IQ Electrical

    A good guide For 'exported PME' and outbuildings!

    For anyone bored by the constant myths and rumours regarding this subject, have a read of this guide from the IEE on supplies to detached outbuildings. It was published in 2005 but the important bits remain unchanged and might be of some help!
  12. P

    PME help please

    Hi just looked through bs7671 543.4 PEN is this the same as pme?
  13. P

    Exporting PME to garage

    Please canyou help I am a bit confused about the earthing to a shed if the house is PME can I just run an earth from the MET to the shed or can I only do this if house is TNS.How do i get earth to shed if its PME hope this doesnt sound to confusing any suggestions would be appreciated
  14. keniff

    Pme

    hi guys new power supply has been put in on a new property and the means of earthing is a temp spike, the electricity board wont connect the main earth for PME untill its proven and they wont test, can i just do a ze on live - neautral and if the readings below 0.35 they can do it? never had...
  15. B

    PME Garden Lights in SWA

    Hi, I am concerned in the event of neutral faliure the CPC will take the installation load so should i TT the external garden lights from the PME of the house, or connect them into the CPC of the providing supply?
  16. L

    No earth - is it a TT looks like PME to me

    Just want to bounch this off others, 1980's house built in rural village, other houses in the village have PME supplies and test out with Ze of around 3.5. Did a quick test when I got there on a ring and getting Zs of 10.45 on further investigation theres no main earth so thought well is this...
  17. D

    exporting pme

    if (for arguments sake)you're exporting PME with a swa submain-not converting to TT can the 'main bond' be used as 'cpc' or should they be separate should the main bond be at least minimum csa required and kept to less than 0.05ohms thanks
  18. D

    Who can install a PME system?

    Evening all, I was talking to a colleague today who was saying that if he couldn't get a good enough Ze reading from a TT system he would convert it to a PME. Can he do this?? Sorry again if this is a really basic question but I for some reason thought this was down to the supplier eg EDF Cheers
  19. D

    PME and earth stake?

    Hi all, I have just been to price a CU change. The problem is the CU is about 20m from the mains position and is run in 16mm T&E. Here's the good bit the 16mm runs through a neighbours flat, so it can not be replaced and I can not run an earth next to it. I can, though not easily, run another...
  20. A

    Can Two Dwellings (Upstairs+Downstairs flat) Share PME Main Earth?

    Just been to a subdivided house - now up+downstairs flats. There are two earth rods which go to a single earth block under the floor, then leave the block as two earths up to the C/Us. (Effectively each flat is connected to the two spikes). There is a single mains head with 100A BS1361 fuse...

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