This chart guides how close workers can safely get to energized equipment based on system voltages and other factors, ensuring compliance with safety standards such as NFPA 70E. Working space: The front clearance, side clearance, and height clearance requirements for electrical equipment that provide a safe area for maintenance, inspections, and other work. The requirements of Rules 2-308 and 2-310 are particular to certain types of equipment (i. equipment with or without draw-out parts). Electrical clearances are the minimum separation distances the National Electrical Code (NEC) requires between wiring, panels, overhead conductors. Spaces around electrical equipment (width, depth, and height) consist of working space for worker protection [110.
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