Occupational Health and Safety Code

The Occupational Health and Safety Code provides specific technical health and safety rules and requirements for Alberta workplaces.

Alberta Regulation 191/2021

Schedule 4 Safe Limit of Approach Distances

Contents

 

Safe limit of approach distances from overhead power lines for persons and equipment

 
Operating voltage between conductors of overhead power line Safe limit of approach distance for persons and equipment
0 — 750 volts
Insulated or polyethylene
covered conductors (1)
300 millimetres
0 — 750 volts
Bare, uninsulated
1.0 metre
Above 750 volts
Insulated conductors (1) (2)
1.0 metre
750 volts — 40 kilovolts 3.0 metres
69 kilovolts, 72 kilovolts 3.5 metres
138 kilovolts, 144 kilovolts 4.0 metres
230 kilovolts, 260 kilovolts 5.0 metres
500 kilovolts 7.0 metres

Notes: (1) Conductors must be insulated or covered throughout their entire length to comply with this group.

(2) Conductors must be manufactured to rated and tested insulation levels.