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Electrical Hazard
Minimum Safe Approach Distance
The MHP15J is an all metal boom, NOT ELECTRICALLY INSULATED, aerial work platform. DO NOT op-
erate it near ELECTRICAL conductors. Regard all conductors as being energized. Use the table and illus-
tration below to determine safe clearance from electrical conductors. (Table 1 and Figure 3, below, are
from ANSI/SIA A92.5–1992 Standard, reprinted with permission of Scaffold Industry Association.)
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
- Do not allow machine personnel or conductive
Danger:
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.
Caution:
- Diagrams shown are only for purposes of illustrating
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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