Rules and Guidelines
Want to participate in the discussions? Please read our Community Rules and Guidelines. Need some help? Visit Support and Answers.

  • State Not Answered
  • Locked Locked
  • Replies 9 replies
  • Subscribers 32 subscribers
  • Views 1163 views
  • Users 0 members are here
Options
You may also be interested in
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Dodgy garage installation - borrowed neutrals?

Chris Pearson
This photo appeared in a car advert which was mentioned in a motoring forum.


The three lines all appear to make their way to the 3-phase board, but I cannot quite see why is happening to the neutrals.


Presumably the meter fitters were content that all was in order, although I suppose that the supplier's' principal concern is billing.


Would nobody give it a satisfactory EICR?

fe04cba68d8023216b9d65ea7caac269-huge-8a324a46-e898-499a-9e06-beead3f8b6bf.jpg

Parents
  • 0
    I agree with Mike - 'looping' N though two or more meters doesn't affect the measurements - and was commonly seen in olden days when 3-phase supplies were metered using three separate single phase meters.


    So not borrowed N, just a common N for a single 3 phase circuit.


    Curiously, BS 7671 wouldn't have an issue with it anyway even if it was borrowed and not on the supplier's side, as (for reasons I've still yet to fathom) 314.4 only applies to final circuits.


       - Andy.
Reply
  • 0
    I agree with Mike - 'looping' N though two or more meters doesn't affect the measurements - and was commonly seen in olden days when 3-phase supplies were metered using three separate single phase meters.


    So not borrowed N, just a common N for a single 3 phase circuit.


    Curiously, BS 7671 wouldn't have an issue with it anyway even if it was borrowed and not on the supplier's side, as (for reasons I've still yet to fathom) 314.4 only applies to final circuits.


       - Andy.
Children
No Data

Community Rules & Guidelines