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Mine Safety and Health Administration MSHA's Accident Prevention Program
Safety Idea

Overhead Powerline Hazards

Safety Something YOU can live with!
Mine Type: All Surface
Category: Electrical

Problem: Overhead high-voltage conductors or "lines" are usually bare wires supported by poles or structures, traversing across mine property. A risk of danger exists for personnel when mobile equipment, such as trucks, drill rigs, cranes, etc. contact these lines. Based on accident data recorded by MSHA from 1980 to 1997, there have been 106 accidents involving overhead lines. Of these 106 accidents 32 resulted in fatalities.

Overhead lines near the following sites and activities can present a serious hazard:

Solution: There are several ways to avoid accidental overhead electric power line contacts and resulting injuries:

Spherical Line Indicators at Potential Contact Points
Spherical Line Indicators at Potential Contact Points

Power Line Insulating Guards
Powerline Insulating  Guards

Reissued: 04/30/2002
Tag # AP2002-S027

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