You raised a very good point. However, per code rule 10-212 service switch is the primary fuse where neutral of the transformer is grounded. So there after isn't it necessary that grounding conductor must be carried to the buildings mainboard (no bonding jumper between neutral and ground in the...
If the customer owns a 44kV substation with ground grid and runs a ground wire to the main switchboard in the building do we still need a service ground(ground rods) to be installed adjacent to the building? Can’t we remove the bonding jumper and use the station ground grid as the service...
