Practice Quiz

Red Seal Construction Electrician

Category - Construction Electrician

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When terminating the service conductor neutral wire from a three phase 120/208 service, when is the neutral wire grounded?
  1. At the utility transformer only.
  2. At the consumer’s service equipment only.
  3. At every utilization point in the system.
  4. The neutral wire must be isolated from ground.
Explanation
Answer: B.  Explanation: CEC 2021 10-210 a) The grounded conductor of a solidly grounded ac system supplied by the supply authority shall be connected to a grounding conductor at one point only at the consumer's service.
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