GATE 2026 Airstreams Renewable Full Practice Test

Six feet from exposed energized parts is required for voltages in the 15.1 kV to 36 kV range. This distance defines the limited approach boundary, a safety line that keeps a worker outside the zone where shock or arc flash hazards become significant for unqualified personnel. At these voltages, the potential for dangerous current and arc energy means you need a practical clearance to prevent reaching the energized parts with your body or a tool. If work must be performed closer than this, it requires a qualified person with proper training, protective equipment, and energy-control procedures. The other distances would place you inside that boundary, increasing the risk, while six feet provides the standard protective gap for this voltage class.