Nec Working Clearances: 0-150 V to 2501-9000 V

NEC (NFPA 70) working clearance distances — minimum clear distances in front of electrical equipment by voltage range and condition per NEC Table 110.26(A)(1) (0–600 V) and Table 110.34(A) (above 600 V)

Electrical Engineeringvoltage_range: 0-150 V to 2501-9000 V5 rows
voltage rangecondition 1 ftcondition 1 mm (mm)condition 2 ftcondition 2 mm (mm)condition 3 ftcondition 3 mm (mm)nec sectionstandard
0-150 V3 ft9003 ft9003 ft900110.26(A)(1)NEC (NFPA 70) 2017
151-600 V3 ft9003 ft 6 in1,0004 ft1,200110.26(A)(1)NEC (NFPA 70) 2017
601-1000 V3 ft9004 ft1,2005 ft1,500110.26(A)(1)NEC (NFPA 70) 2017
1001-2500 V3 ft9004 ft1,2005 ft1,500110.34(A)NEC (NFPA 70) 2017
2501-9000 V4 ft1,2005 ft1,5006 ft1,800110.34(A)NEC (NFPA 70) 2017

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