Stanley Black & Decker PR41 manual Storm Work and Emergency CONDITIONS-LINE Clearance

ELECTRICAL HAZARDS

Table 2 – Minimum approach distances to energized conductors for persons other than qualified line- clearance arborists and qualified line- clearance arborist trainees.

Nominal Voltage		Distance
kV phase-to-phase1
		ft-in	m
0.0	– 1.0	10–00	3.05
1.1 – 15.0		10–00	3.05
15.1	– 36.0	10–00	3.05
36.1	– 50.0	10–00	3.05
50.1	– 72.5	10–09	3.28
72.6 – 121.0		12–04	3.76
138.0	– 145.0	13–02	4.00
161.0	– 169.0	14–00	4.24
230.0	– 242.0	16–05	4.97
345.0	– 362.0	20–05	6.17
500.0	– 550.0	26–08	8.05
785.0	– 800.0	35–00	10.55

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 conduc- tors as required in Tables 1 and 2.

Footwear, including lineman’s overshoes, having electri- cal-resistant soles, shall not be considered as providing any measure of safety from electrical hazards.

Rubber gloves, with or without leather or other protec- tive covering, shall not be considered as providing any measure of safety from electrical hazards.

Ladders, platforms and aerial devices, including insulat- ed aerial devices, shall be subject to minimum approach distances in Table 1 and 2.

Aerial devices and attached equipment (such as chip- pers) 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 accor- dance 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- 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 own- ers/operators shall be notified immediately.

PR41 User Manual ◄ 7