Osha Electrical Panel Clearance

Here s a broad breakdown of space requirements when planning around electrical panels.

Osha electrical panel clearance.

Obstructed access to panelboards can prevent personnel from shutting down the source of power in the event of an accident. The osha standard 29 cfr1910 305 d requires a dead front on electrical panel boards. A clearance of at least 3 feet is required for equipment using 120 to 250 volts. For installations built on or after august 13 2007 1 98 m 6 5 ft except that where the electrical equipment exceeds 1 98 m 6 5 ft in height the minimum headroom may not be less than the height of the equipment.

Minimum depth of clear working space at electric equipment 600 v or less. Part of this requirement includes using appropriate markings to alert people to potential electrical dangers and keep the area in front of this equipment clear so work can be performed safely. 2 where can i find the cal osha regulations for electrical safety. Overhead clearance electrical wires running to the 480 volt electrical panel must be a minimum of 12 feet above the ground if the panel is located outside.

Clearance to ensure that an electrical panel can be accessed at all times during inspection maintenance or emergency osha has determined that the working space in front of the equipment must be at least 30 inches wide or the width of the equipment. The occupational safety and health administration osha requires that employers keep their employees safe near electrical hazards. Clearance around an indoor electrical panel nec 110 26 clearance for conductor entering in panel nes 408 5 clearance between bare metal busbar in panel nes 408 5 clearance of outdoor electrical panel to fence wall nes 110 31 working space around indoor panel circuit board nes 110 34 clearance around an outdoor electrical panel nes. Minimum clearance around electrical panels carrying 600 volts or less insufficient clearance around electrical panels is one of the many electrical hazards that can endanger worker safety.

This 12 foot minimum requirement is also required over pavement and a minimum of 22 feet is required over roads. For equipment designed for floor mounting clearance between top surfaces and adjacent surfaces shall be provided to dissipate rising warm air. Electrical equipment provided with ventilating openings shall be installed so that walls or other obstructions do not prevent the free circulation of air through the equipment. Insufficient clearances around panels lack of improper lockout tagout procedures failure to maintain proper clearance from overhead lines failure to follow manufacturer s instruction when using electrically powered equipment.