Minimum safe approach distance ii, Table 1 - (m.s.a.d.) ii, Figure 3 - (m.s.a.d.) ii – Snorkel SR3370 User Manual
Page 4: Electrical hazard, N minimum safe approach distance
page - ii
Rev B
SR3370 & SR2770 – 12696A
Electrical Hazard
n Minimum Safe Approach Distance
An SR is an all metal 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
A92.6–1990 Stan dard, re printed with per mis sion of Scaf fold In dus try As so ci a tion.)
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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
Danger:
Caution:
- 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
M.S.A.D. Work positions, not all work positions.