What is the primary concern when determining the voltage of exposed live parts?

The primary concern when determining the voltage of exposed live parts is the safety of personnel. High voltages pose significant risks, including electric shock, burns, or even fatality if a person comes into contact with live electrical components. Identifying the voltage helps ensure that proper safety measures are in place, such as insulation, protective equipment, and appropriate distance from live parts to prevent accidents.

In the context of electrical safety, personnel should be trained to recognize voltages and understand the necessary precautions based on those levels. This awareness is crucial for maintaining a safe working environment, as different voltage levels necessitate different safety protocols and equipment.

While factors like efficiency of power delivery, quality of materials, and cost concerns are important in electrical installations and maintenance, they take a secondary role to human safety. The priority is to minimize the risk to workers and those near electrical installations, ensuring that safety standards are upheld in all electrical work.