Pocket Reference Guide for Power Line Clearance

The Construction Safety Council suggests that you print this out as a two-sided card and laminate it, to use for quick reference on the job.

Preventive Measures

General

• Move equipment/activity to the safe working distance from power lines
  
• Have utility de-energize and visibly ground power lines
  
• Have utility move power lines to the safe working distance.
  
• Have utility install insulated sleeves on power lines.*
  
• Install flagged warning lines to mark horizontal and vertical power line clearance distances.
  
• Use nonconductive tools and materials

• Use an observer.*
  
• Use an insulated link, if applicable.*
  
• Use a boom cage guard, if applicable.*
  
• Use a proximity device, if applicable.*

Mobile Heavy Equipment

• Install rider posts or goal posts under power lines.
  
• Install warning signs at driver's eye level.

* These options do not allow the operator to work closer than the line clearance distance.

Ladders

• Use nonconductive ladders
  
• Don't carry or move extension ladders fully extended. Retract before moving.
  
• Get help moving ladders to maintain control.

Material Storage

• Don't store any materials under power lines.
  
• Use caution tape and signs to cordon off area under power lines.

Excavations

• Call local one-call service several days before you dig to locate all underground cables.
  
• Hand dig within three feet of cable location.
  
• Be aware that more than one underground cable may be buried in area of locator markings.

Remember: The Only safe power lines are the ones that don't exist.

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