102. What is the minimum threshold voltage which requires electrical workers to be insulated from energized conductors or circuit parts by wearing the appropriate PPE while working in open enclosures?

Electrical workers must use shock protection PPE when working near energized parts above 50 volts. This threshold, not the voltage's inherent danger, dictates the requirement for PPE in open enclosures. Voltages below 50 volts generally do not require formal shock PPE, though safe work practices remain essential, while higher voltages necessitate PPE but are not the minimum threshold.