Measuring Ze from DB fed from section board

[Blaine Jamieson]

Would a DB fed from section board be considered as the origin in regard to ze or would that be at the section board.

Cheers

 

[Sintra]

No that would be Zdb. Ze is only at the origin of the installation.

 

[Strima]

Would a DB fed from section board be considered as the origin in regard to ze or would that be at the section board.

Cheers

No.

 

[Blaine Jamieson]

Cheers guys. Wasn't sure as it's a factory set up feed from 11000/440 transformer to section board (fuses for dbs) then to distribution boards.

 

[7029 dave]

Zdb

 

[ipf]

Zs at DB....

 

[Charlie_]

Remember; Ze is the earth fault loop impedance that is external to the installation