The IET is carrying out some important updates between 17-30 April and all of our websites will be view only. For more information, read this Announcement

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 6 replies
  • Subscribers 31 subscribers
  • Views 11989 views
  • Users 0 members are here
Options
You may also be interested in
This discussion is locked.
You cannot post a reply to this discussion. If you have a question start a new discussion

Undersized Main Earth Conductor

Former Community Member
Former Community Member
Hi Folks,

I was carrying out an EICR on a domestic property with a PME supply.

The Main earth conductor is 10mm, the water and gas bonding is also 10mm connected to the earth terminal in the consumer unit.

Would you give this a C3 or C2?


I know there's an equation knocking about for checking main earth conductors however, I'm under the impression that this only works if the bonding conductors are terminated at the MET and not the consumer unit.


Any suggestions will be welcome.


Thanks
Parents
  • 0
    Hi stakes electrical:

    I know there's an equation knocking about for checking main earth conductors ...


    Before DZ says anything, I shall say that the turn of phrase above does not give me much confidence in the OP's credentials for inspection and testing.


    Any road, it's the adiabatic which JP mentions above.


Reply
  • 0
    Hi stakes electrical:

    I know there's an equation knocking about for checking main earth conductors ...


    Before DZ says anything, I shall say that the turn of phrase above does not give me much confidence in the OP's credentials for inspection and testing.


    Any road, it's the adiabatic which JP mentions above.


Children
No Data

Join us to get the best from IET EngX.

Joining EngX lets you personalise your experience so you stay up to date on the topics that interest you, plus you’ll be able to make connections who are looking to collaborate, exchange ideas and more.

Join us Not now

Community Rules & Guidelines