i am taking my renewal exam and am stumped on a question...
a 3-phase, 460-volt wye pump service with no neutral load requires:
(a) a grounded service conductor to be run to and isolated from the service disconnecting means. (b) a grounded electrode conductor connected to the service disconnecting means. (c) a grounded service conductor be run to and bonded to the service disconnecting means. (d) no additional grounding or bonding.
a 3-phase, 460-volt wye pump service with no neutral load requires:
(a) a grounded service conductor to be run to and isolated from the service disconnecting means. (b) a grounded electrode conductor connected to the service disconnecting means. (c) a grounded service conductor be run to and bonded to the service disconnecting means. (d) no additional grounding or bonding.