Snorkel TL39T - Manual (Page 6)

page - ii Rev C
Electrical Hazard
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Minimum Safe Approach Distance
The TL39T is an all metal boom, NOT ELECTRICALLY INSULATED, aerial work platform. DO NOT
operate it near ELECTRICAL conductors. Regard all conductors as being energized. Use the table and
illustration 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.)
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Table 1 - (M.S.A.D.)
Minimum Safe Approach Distance to energized
(exposed or insulated power lines)
Voltage range Minimum safe approach distance
(phase to phase) (Feet) (Meters)
0 to 300V Avoid contact
over 300v to 50kv 10 3.05
over 50kv to 200kv 15 4.60
over 200kv to 350kv 20 6.10
over 350kv to 500kv 25 7.62
over 500kv to 750kv 35 10.67
over 750kv to 1000kv 45 13.72
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.
Caution - Diagrams shown are only for purposes of illustrating
M.S.A.D. Work positions, not all work positions.