Live parts to which an employee may be exposed shall be what?

When considering the safety of employees who may be exposed to live electrical parts, the term "isolated" is crucial. Isolating live parts from those who might come into contact with them is essential for ensuring safety in an electrical environment. Isolation involves removing the electrical energy source or separating the live parts from workers, thus mitigating the risk of accidental exposure to potentially hazardous voltages.

In practice, isolation can mean using physical barriers, disconnecting power, or employing specialized equipment designed to keep live electrical components separated from work areas or personnel. This principle is fundamental in safety protocols within the electrical trade, ensuring that workers do not come into contact with energized components while performing maintenance or repair work.

While grounding, de-energizing, and insulating are also significant safety measures, the specific requirement for exposure scenarios emphasizes isolation as the primary method to protect employees from electrical hazards. Grounded parts may still be energized, and insulation can be degraded or compromised, making isolation the most effective means of ensuring worker safety in the presence of live electrical parts.