The required voltage clearance for conductors serving luminaries on a branch circuit should not exceed what?

The required voltage clearance for conductors serving luminaires on a branch circuit is typically set at a maximum of 120 volts. This is aligned with standard residential and light commercial voltage systems, where 120 volts is the most common voltage utilized to power lighting fixtures.

This limitation ensures safety and adherence to electrical codes, which help prevent potential hazards associated with higher voltage levels. Systems operating above this voltage can introduce greater risks of electrical shock or fire, necessitating more robust insulation and safety measures. As such, keeping the voltage at or below 120 volts for branch circuits dedicated to luminaires helps maintain a safe and efficient electrical installation.