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Electrical Hazard
Minimum Safe Approach Distance
The MHP15J is an all metal boom, NOT ELECTRICALLY INSULATED, ae rial work plat form. DO NOT op -
er ate it near ELECTRICAL con duc tors. Re gard all con duc tors as be ing en er gized. Use the ta ble and il lus -
tra tion be low to de ter mine safe clear ance from elec tri cal con duc tors. (Ta ble 1 and Fig ure 3, be low, are
from ANSI/SIA A92.5–1992 Stan dard, re printed with per mis sion of Scaf fold In dus try As so ci a tion.)
Table 1 - (M.S.A.D.)
(phase to phase)
0 to 300V
over 300v to 50kv
over 50kv to 200kv
over 200kv to 350kv
over 350kv to 500kv
over 500kv to 750kv
over 750kv to 1000kv
Figure 3 - (M.S.A.D.)
page - ii
Minimum Safe Approach Distance
to energized (exposed or insulated power lines)
Voltage range
Denotes prohibited zone
Danger:
- Do not allow machine personnel or conductive
materials inside prohibited zone.
- Maintain M.S.A.D. From all energised lines and parts
as well as those shown.
- Assume all electrical parts and wires are energised
unless known otherwise.
- Diagrams shown are only for purposes of illustrating
Caution:
M.S.A.D. Work positions, not all work positions.
Minimum safe approach distance
(Feet)
(Meters)
Avoid contact
3.05
10
4.60
15
6.10
20
7.62
25
10.67
35
13.72
45
MHP15J – 11995A
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