Limits of Approach

Understanding safe working distances from power lines is critical for crane operators and construction personnel. This guide provides detailed information on regulatory requirements and best practices when working near overhead and underground electrical hazards.

WorkSafeBC's General Limits of Approach

Voltage Phase to Phase	Minimum Distance (Meters)	Minimum Distance (Feet)
Over 750 V to 75 kV	3	10
Over 75 kV to 250 kV	4.5	15
Over 250 kV to 550 kV	6	20

If you need to work near the limits of approach

If it's not possible to maintain these safe distances, you must contact BC Hydro and get an Assurance in Writing before working. This is a legal requirement under WorkSafeBC regulations.

Call BC Hydro at 1-800-963-8711 to arrange for:

A safety assessment of your work area
Power line covers or barriers
De-energizing and grounding of power lines
Assurance in Writing documentation

Remember: No work can begin until you have received written permission from the utility owner and all required safety measures are in place.

Important Considerations

•These limits apply to all parts of the crane, boom, load line, and load
•Account for boom deflection and load swing in your planning
•Wind conditions can significantly affect safe working distances
•Always assign a dedicated power line spotter when working near electrical hazards

Why This Matters

Power line contacts remain one of the leading causes of serious injuries and fatalities in the crane industry. Understanding proper limits of approach and implementing appropriate safety measures can prevent these incidents and save lives. This resource helps crane operators and site planners make informed decisions when working near electrical infrastructure.

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Created by Bigfoot Crane