Stanley CS28 User Manual page 8

Table 2 – Minimum approach distances to energized
conductors for persons other than qualified line-
clearance arborists and qualified line-clearance
arborist trainees.
Nominal Voltage
kV phase-to-phase 1)
0.0 – 1.0
1.1 – 15.0
15.1 – 36.0
36.1 – 50.0
50.1 – 72.5
72.6 – 121.0
138.0 – 145.0
161.0 – 169.0
230.0 – 242.0
345.0 – 362.0
500.0 – 550.0
785.0 – 800.0
1) Exceeds phase-to-ground.
The tie-in position should be above the work area and
located in such a way that a slip would swing the arborist
away from any energized electrical conductors or other
identified hazard.
While climbing, the arborist should climb on the side of
the tree that is away from energized electrical conductors
as required in Tables 1 and 2.
Footwear, including
electrical-resistant soles, shall not be considered as
providing any measure of safety from electrical hazards.
Rubber gloves, with or without leather or other protective
covering, shall not be considered as providing any
measure of safety from electrical hazards.
Ladders, platforms and aerial devices, including
insulated aerial devices, shall be subject to minimum
approach distances in Table 1 and 2.
Aerial devices and attached equipment (such as
chippers) contacting energized electrical conductors
shall be considered energized. Contact shall be avoided,
except where emergency rescue procedures are being
carried out. Emergency rescue should be performed in
accordance with 4.3.
STORM WORK AND EMERGENCY
CONDITIONS-LINE CLEARANCE
Line clearance shall not be performed during adverse
weather conditions such as thunderstorms, high winds
and snow and ice storms.
Qualified line-clearance arborists and qualified line-
8 ► CS25/28 User Manual
ELECTRICAL HAZARDS
Distance
ft-in m
10–00 3.05
10–00 3.05
10–00 3.05
10–00 3.05
10–09 3.28
12–04 3.76
13–02 4.00
14–00 4.24
16–05 4.97
20–05 6.17
26–08 8.05
35–00 10.55
lineman's overshoes,
clearance arborists trainees performing line clearance
in the aftermath of a storm or under similar conditions
shall be trained in the special hazards associated with
this type of work.
Line-clearance operations shall be suspended when
storm work or emergency conditions develop involving
energized electrical conductors. Electrical system
owners/operators shall be notified immediately.
having