True or False: The disconnecting means for a service must connect to both grounded and ungrounded conductors.

True or False: The disconnecting means for a service must connect to both grounded and ungrounded conductors.

• A. True
• B. False
• C. Only to ground conductors
• D. Depends if it's a transformer

Answer: (B)

The statement is false because the disconnecting means for a service does not need to connect to both grounded and ungrounded conductors. Disconnecting means are designed primarily for ungrounded conductors, allowing the electrical system to be safely de-energized for maintenance or emergency situations. Grounded conductors are typically bonded to ground and are not meant to be disconnected in the same manner. Moreover, the National Electrical Code (NEC) outlines specific requirements for disconnecting means, underscoring that the primary focus is on the ungrounded conductors which carry the current. This ensures that when the disconnecting means is operated, the circuit can be safely accessed, minimizing the risk of electrical shock or other hazards. Thus, the requirement is to ensure the safety and functionality of electrical systems rather than accommodating both grounded and ungrounded conductors in the disconnecting means.

The statement is false because the disconnecting means for a service does not need to connect to both grounded and ungrounded conductors. Disconnecting means are designed primarily for ungrounded conductors, allowing the electrical system to be safely de-energized for maintenance or emergency situations. Grounded conductors are typically bonded to ground and are not meant to be disconnected in the same manner.

Moreover, the National Electrical Code (NEC) outlines specific requirements for disconnecting means, underscoring that the primary focus is on the ungrounded conductors which carry the current. This ensures that when the disconnecting means is operated, the circuit can be safely accessed, minimizing the risk of electrical shock or other hazards. Thus, the requirement is to ensure the safety and functionality of electrical systems rather than accommodating both grounded and ungrounded conductors in the disconnecting means.