In Michigan, what is the maximum allowable load on a 15 amp circuit?

In Michigan, the National Electrical Code (NEC) guidelines suggest that the safe maximum load for a circuit should be calculated as a percentage of the circuit's capacity to prevent overheating and potential fire hazards. For a 15 amp circuit, it is recommended to use 80% of the circuit's capacity for continuous loads.

Calculating this, 80% of 15 amps equals 12 amps. Therefore, while a 15 amp circuit can technically carry up to its rated capacity of 15 amps, this would not be advisable for safety reasons, particularly for continuous loads. Thus, 12 amps is considered the maximum allowable load for safe operation. This approach ensures that the wiring remains within safe temperature limits and mitigates the risks of tripping breakers or damaging appliances.

The other options do not align with this standard practice for load calculations on a circuit, as they are either below the recommended safe operational threshold for a 15 amp circuit or do not reflect the importance of adhering to the 80% rule for safety in electrical systems.