Discuss PME supply block of flats in the UK Electrical Forum area at ElectriciansForums.net
Main bonding should be installed for each installation.
The installation in each flat is a seperate electrical installation and should have its own main bonding.
No, the size of the bonding is based on the size of the DNO's combined neutral and earth conductor. Neutral current diverted via the bonding under fault conditions will depend on this, not on the size of the supply to each flat.
Ultimately for a job like this the DNO should be consulted.
yes this is true, i spoke with the NICEIC and they say use tabe 54.8 for the ryefield or consult DNO, then each flat cant have any less than 10mm secondary main bonds
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