gulkhan123
Member
Q. There is a 4-core cable( 3ph +n), without any grounding or bonding conductor, running from a substation transformer to a main switchboard. The neutral of the transformer is grounded at the substation.
The switchboard room has a ground bar connected to the switchboard and to the ground loop around the building which is further connected to the lightning protection down conductor.
Dont we need to run a grounding or bonding conductor to run along the above cable from the transformer substation to the switchboard room ground busbar?
Regards
GK
The switchboard room has a ground bar connected to the switchboard and to the ground loop around the building which is further connected to the lightning protection down conductor.
Dont we need to run a grounding or bonding conductor to run along the above cable from the transformer substation to the switchboard room ground busbar?
Regards
GK
