Hi all.
Try to keep this nice and short.
Had an EICR fail on a health centre due to corrosion on main supply which was causing high Ze values (DNO not interested in changing the supply).
Option is to install earth rods and change main switch to a time delayed 300ma 4 pole RCD main switch.
Question is….due to 3 phase PV being on the system would you recommend the main switch RCD to be Type A or Type B?
Many thanks
Try to keep this nice and short.
Had an EICR fail on a health centre due to corrosion on main supply which was causing high Ze values (DNO not interested in changing the supply).
Option is to install earth rods and change main switch to a time delayed 300ma 4 pole RCD main switch.
Question is….due to 3 phase PV being on the system would you recommend the main switch RCD to be Type A or Type B?
Many thanks
