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Idiomas disponibles
Idiomas disponibles
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always follow approved work safety practices and clearances per OSHa Sub-parts
R & V and all company work rules. for Minimum approach Distances (MaD), see
OSHa tables R-6 and R-7 below.
taBLE R-6 – aLtERnatIVE MInIMuM appROaCH DIStanCES
nominal voltage (kV)
phase-to-phase
0.050 to 0.300
2
0.301 to 0.750
2
0.751 to 5.0
5.1 to 15.0
15.1 to 36.0
36.1 to 46.0
46.1 to 72.5
Employers may use the minimum approach distances in this table provided the worksite is
1
at an elevation of 3,000 feet (900 meters) or less. If employees will be working at elevations
greater than 3,000 feet (900 meters) above mean sea level, the employer shall determine
minimum approach distances by multiplying the distances in this table by the correction factor
in OSHA's Table R-5 Altitude Correction Factor, corresponding to the altitude of the work.
For single-phase systems, use voltage-to-ground.
2
OpERatInG InStRuCtIOnS
fOR VOLtaGES Of 72.5 kV anD LESS
phase-to-ground exposure phase-to-phase exposure
ft.
Avoid Contact Avoid Contact Avoid Contact Avoid Contact
1.09
2.07
2.14
2.53
2.76
3.29
Distance
m
0.33
0.63
0.65
0.77
0.84
1.00
8
1
ft.
m
1.09
0.33
2.07
0.63
2.24
0.68
2.92
0.89
3.22
0.98
3.94
1.20
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