What should be done to ensure safety when performing an electrical test?

To ensure safety when performing an electrical test, de-energizing the circuit before testing is essential. This practice eliminates the risk of electric shock, which can occur if a live circuit is inadvertently contacted during testing. By ensuring that the circuit is not carrying current, a tester can carry out their work without exposing themselves to potential hazards.

De-energizing also allows for accurate assessments of the components involved since any measurements taken while power is present can cause erroneous readings and could lead to unsafe working conditions. Additionally, this protocol is often a standard practice in electrical safety as it aligns with safety regulations and guidelines for safe working environments.

In contrast, while wearing safety gloves, keeping tools away from water, and having a partner present are all important safety measures, they are supplementary to the fundamental rule of ensuring that the circuit is de-energized. Only by first disconnecting power can a technician safely proceed with their task.