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Safety Clearance for Electrical Panel August 26, 2012 6 Comments
Safety Clearance for Electrical Panel: Working Space around Indoor Panel/Circuit Board (NES 3122!:
"oltage
E#po$ed li%e E#po$ed li%e E#po$ed li%e part$ to part$ on ot* part$ to Not li%e &rounded part$ $ide$ part$( or (concrete' rick' grounded part$ ! and )all$!
Up to 150 V
0.914 Meter (3 Ft)
150 V to 600 V
0.914 Meter (3 Ft)
0.914 Meter (3 Ft)
0.914 Meter (3 Ft)
1.07 Meter Meter (3’6) (3’6) 1.22 Meter Meter (4 Ft)
Clearance around an Indoor electrical panel (NES 11+2,!:
Clearance et)een Bare etal Bu$ ar in Panel (NES +0!:
"oltage
ppo$ite ppo$ite 7i%e Part$ Polarityounte PolarityW*ere to &round d on Sa.e 4eld 5ree in 6ir Surface
Up to 125 V 19.1 mm
12.7 mm
12.7 mm
125 V to 250 31. mm V
19.1 mm
12.7 mm
250 V to 600 50. mm V
25.4 mm
25.4 mm
Clearance of utdoor electrical panel to 5ence/Wall (NES 11+31!:
"oltage
-i$tance (.in!
600 V to 13. V 3.05 Meter 13. V to 230 V 4.57 Meter A*o;e 230 V 5.49 Meter
Working Space around Indoor Panel/Circuit Board (NES 11+3!:
"oltage
E#po$ed li%e E#po$ed li%e E#po$ed li%e part$ to part$ on ot* part$ to Not li%e &rounded part$ $ide$ part$( or (concrete' rick' grounded part$ ! and )all$!
601 V to 2.5 V 0.914 Meter (3 Ft) 1.2 Meter (4 Ft)
1.5 Meter (5 Ft)
2.5 V to 9.0 1.2 Meter (4 Ft) V
1.5 Meter (5 Ft)
1. Meter (6 Ft)
2.5 Meter ( Ft)
9.0 V to 25 V
1.5 Meter (5 Ft)
1. Meter (6 Ft)
25 V to 75 V
1. Meter (6 Ft)
2.5 Meter ( Ft) 3.0 Meter (10 Ft)
A*o;e 75 V
2.5 Meter ( Ft)
3.0 Meter (10 Ft) 3.7 Meter (12 Ft)
Clearance around an utdoor electrical panel (NES 11+31!:
-e$cription of Clearance Clear )ork $pace:
-i$tance (.in!
=ot 'ess t%n 2.0 Meter %$g%(Mesure-
;ert$&''? "rom t%e "'oor or p't"orm) or not 'ess t%n 914 mm (3 "t) +$-e (Mesure- pr''e' to t%e e
=onmet''$& or Met'Ben&'ose- n&'osure -oor or %$nge- &o;er s%'' *e ne' $n gener' pu*'$& n- t%e ept 'o&e-. *ottom o" t%e en&'osure $s 'ess t%n 2.5 m ( "t) *o;e t%e "'oor or gr-e 'e;e'
Ele%ation of 8nguarded 7i%e Part$ ao%e Working Space (NES 11+3E!:
"oltage
Ele%ation (.in!
600 V to 7.5 V 2. Meter 7.5 V to 35 V 2.9 Meter A*o;e 35 V 2.9 Meter 9.5 mmDV
Working Space for Panel (Code &eorgia Po)er Co.pany!:
"oltage
pose- '$;e posepose- '$;e prts to '$;e prts on prts to =ot '$;e roun-e- prts *ot% s$-es prts( or (&on&rete, *r$&, groun-e- prts ) n- +''s).