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pme

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  1. S

    Pme

    got a tns at 1 ohms dno will give us a pme for £180 or they say shove a rod in the ground ummm im thinking is there much price in it but the pme is guaranteed the ze on the rod could be varaible with the dryness of the soil what are your thoughts guys.
  2. Top Cat

    Harmonisation of colours, PME & don't snip out cores!

    Changed a C/U today, when i took cover off found live = blue, neutral = red, with cable ties marked L & N in correct position. This was the same at meter so it must have been the meter guy! The meter had a test date of 2006, outside meter box probably fitted about same time. PME must have been...
  3. R

    Using SWA Armour & Core in PME TNCS?

    Hi guys , was wondering if any could advise. Got a job when client is moving his shed containing Swin pool pump filter etc etc a few metres. I have disconnected for him and made safe. Unfortunately though he thought he could just bish bosh in himself but advised that would be a notifiable and...
  4. F

    Domestic PME, Radial socket outlet problem

    Domestic PME, have two 2.5mm t&e on a B32 mcb, if this was a ring at sometime then the continuity is broken somewhere and i cannot locate the break. No access to underfloor, no spare ways in the CU, has RCD protection to 30mA. I'm thinking it is not compliant to put two Skt Radial cct's on one...
  5. D

    Converting from PME to TT

    Hi All, I just want to check if there are any restrictions or special requirements, other than adequate RCD protection, when converting a domestic PME(TNCS) installation to TT? The convertion will either be to the whole installatioin or to just part of it. The reason for the alteration is the...
  6. Rockingit

    When PME is NOT recommended.....why??

    Something that's always bugged me, and I've never fully understood WHY (just know that's it what the regs say) is why certain installations are prohibited from using TN earthing, only TT (caravan sites etc etc). Anyone care to enlighten me?
  7. La Poste

    Earth spikes and PME

    I have been reading a little about TN-C-S and T-N-S and I understand what is going on generally. I understand TT systems OK. I have read conflicting posts about installing earth rods with PME, some people say it is a good idea, some people say it is not. I just wonder what is the advantage of...
  8. DrSnooze

    PME to Garage

    Hi all, Iv'e spent some time reading through old posts to find the correct answer to my question but I'm still a little unsure... I'm suppling a db into a garage from domestic supply within a cottage. The garage is 3m away from cottage. The cottage supply is pme. There's a 17th edition split...
  9. W

    PME ze high?

    hi guys, during installing a new ring main today during testing ze i recieved a high reading of 32 ohms on a pme system.i know thi is high. should i inform the suppliers? or is that down to us sparkies? my zs readying are slightly higher by a 0. sumthing. if i need to infor this on certificate...
  10. B

    Overhead Pme

    Sorry Jase but I've come across something similar. A cottage is supplied overhead from a local works. Not had chance to take any readings, so cant confirm if its TT or Tncs. My first impression is that its Tncs from the transformer but havnt seen the transformer. Time for a visit to the works...
  11. J

    overhead pme?

    came across this today, was just wondering everyones thoughts, the cable coming in to the cut out comes in from overhead, looks like a single core SWA the live into live and the sheath into neutral, the EFL at the cut out was .20 I suspect an old TT supply has been changed to PME but the DNO...
  12. VoltzElectrical

    PME for dummies

    six characters
  13. M

    Do I extend the PME outside to a Log Cabin style building??

    Please forgive me in asking this same question which normally results in an arguement......lol I friend of mine needs to have a supply installed (a lighting circuit, a heater circuit and a socket circuit) in a SWISS style log cabin located about 2 metres away from their main home which has a...
  14. P

    TT and TNCS (PME) at same address!

    I'm working at a farm with a 3 phase PME supply to a cupboard in the house containing the house CU and two 3 phase isolators feeding SWA cables to other parts of the farm. There's an earth terminal block connected to the PME connection and the SWA armour and earth cores; but not to the earth...
  15. A

    VERY unusual connection to earth, possible PME system?

    Evening All I've come across a very unusual situation; I've recently been asked to do a consumer unit replacement on a job but on inital inspection i've discovered that the systems only connection to earth is via a 16mm2 cable between the MET and the netural connection within the henley block...
  16. G

    What is PME and TNCS??

    Hi guys just wondering if someone can explain the difference between the two, was doing a pir today and whilst checking the supply i noticed a western power sticker on their cut out saying the earthing arrangement is either PME or TNCS. But on the reports my company uses the only options to...
  17. C

    No distributor supplied MET on PME sytem

    Not come across this before but the installation is labelled PME system but there is no earth connection supplied by the distributor. The earth connections are stuffed inside a loose connector in the fuse box and a 4mm cable connected off the incoming water supply, obviously not allowed anyway...
  18. C

    Export PME?

    Sorry, that boring subject again about which so much has been written. However, I would just like to hear views on the following: 6mm 3 core swa running off 40A MCB from consumer unit in house. Armour and 3rd core connected to PME in house. This feeds an RCBO'd consumer unit in new building in...
  19. W

    Tn-c-s pme

    Visited a house last week to correct a supplier fitted RCD in the tails that they had wired incorrectly. Supply tails on wrong side of RCD. Current supply is TT but post in garden indicates that PME supply is available. Place needs a 17th board and total rewire which will be done in Nov but...
  20. J

    Exporting PME I cant see a problem with this

    Hey folks Im currently working on a large individual domestic property which is also a new build. Just wanted to get a few opinions if possible. The electricity meter and main fuse (PME earth system) are installed in a large outbuilding beside the main house. The outbuilding is to be used as...

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