Residential Construction Academy: House Wiring (MindTap Course List)
Residential Construction Academy: House Wiring (MindTap Course List)
5th Edition
ISBN: 9781337402415
Author: Gregory W Fletcher
Publisher: Cengage Learning
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Chapter 6, Problem 1RQ
To determine

The minimum rating for a service entrance disconnecting means for a single family dwelling and the section in NEC that states the rule.

Expert Solution & Answer
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Explanation of Solution

According to the National electric code the circuit conductors between the final overcurrent device and the power or lightning outlet is defined as a branch circuit.

According to the National electric code section 230.79(C) the service entrance disconnecting means for a single family dwelling shall have minimum rating of 100amps , 3-wire .

The minimum rating for a service entrance disconnecting means for a single family dwelling is 100amps

Conclusion:

Thus, The minimum rating for a service entrance disconnecting means for a single family dwelling is 100amps and the section in NEC that states the rule is 230.79(C) .

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