When must the normal operating voltage of electrical equipment be determined by workers?

Determining the normal operating voltage of electrical equipment before work begins is crucial for ensuring safety in the workplace. This information helps workers to take appropriate safety precautions, select the right tools, and use proper personal protective equipment. Knowing the operating voltage in advance allows for the identification of potential hazards that may be present while working with or around electrical systems.

If workers do not know the operating voltage beforehand, they may be unprepared for the level of electrical hazard they are facing, which could increase the risk of accidents or electrical shock. Therefore, establishing the voltage level before starting any work is a fundamental safety practice in electrical work environments. This proactive approach helps to cultivate a safer work area, minimizing risks associated with electrical tasks.