Snorkel ATB 42, Руководство оператора

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page - ii ATB 42/50 – 0161987
Electrical Hazard
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Minimum Safe Approach Distance
The Snorkelift 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
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Figure 3 - (M.S.A.D.)
Denotes prohibited zone
Caution:
Danger: - Do not allow machine personnel or conductive
materials inside prohibited zone.
- Maintain M.S.A.D. from all energized lines and parts
as well as those shown.
- Assume all electrical parts and wires are energized
unless known otherwise.
- Diagrams shown are only for purposes of illustrating
M.S.A.D. work positions, not all work positions.
Courtesy of Crane.Market