When shutting off electricity to a building, should only the main breaker be turned off?

Turning off the electricity to a building typically involves shutting off the main breaker; however, the best practice is often more nuanced, which is why the answer that suggests "true" may not fully encompass every situation.

While switching off the main breaker will sever power to the entire building, there are situations where additional circuit breakers may need to be turned off as well. For example, if a specific area of the building is found to be unsafe or if there are hazards present, isolating power to just that area may be necessary without affecting the entire building's power supply.

To ensure safety, it's essential to evaluate the specific circumstances of the emergency. Considerations such as the state of the electrical system, potential hazards, and personnel safety can dictate whether only the main breaker should be turned off or if additional steps are required. Therefore, in practical applications, it is best to assess the condition and risks before deciding if solely shutting off the main breaker is adequate, which suggests a more cautious approach than simply saying "true".