FAQ's

What are overhead power line signs warning workers about?

That energized power lines are present above and that working near them without maintaining safe clearance distances can result in electrocution. Overhead power line contact is one of the leading causes of fatalities in construction and outdoor work, and in most cases the worker did not realize how close they actually were.

Where are these signs most commonly needed?

These signs are most needed at construction sites loading docks with lines nearby agricultural fields with low-hanging lines, utility and maintenance yards areas where cranes and aerial lifts are used and anywhere vehicles, equipment or workers are operating near overhead electrical lines.

What clearance distances are required near overhead power lines?

OSHA requires an approach distance of ten feet for power lines up to 50 kV under OSHA 29 CFR 1926.1408 for crane operations and 29 CFR 1910.333 for general industry electrical work. For voltages the required clearance increases. These signs help remind people of those boundaries where it's most important.

What OSHA standards apply?

OSHA 29 CFR 1910.333 covers electrical safe work practices in general industry. OSHA 29 CFR 1926.1408 covers power line safety for crane and derrick operations. OSHA 29 CFR 1926.416 covers general electrical safety in construction. OSHA 29 CFR 1910.145 covers accident-prevention signs and tags.

Are these signs relevant for non-electrical workers like delivery drivers or equipment operators?

Electricians are generally trained to identify and respect power line hazards. The bigger risk often comes from workers in other trades or operators who are focused on their equipment and not thinking about what is above them. Signs at entry points and staging areas catch exactly those workers.

Can these signs be used alongside boom truck and crane operation areas?

Yes. Crane and aerial equipment operation near overhead lines is one of the highest-risk scenarios for power line contact. Posting clear overhead power line warnings at equipment staging areas and along the approach routes to the work zone is a practical and important safety measure.

Are these signs weatherproof for outdoor use?

Yes. The signs are made with waterproof vinyl that can handle outdoor conditions, including sun, rain and wind without the print fading or the label peeling. This is important, for signs that are placed at outdoor job sites and equipment yards.

What size options are available?

The signs come in different sizes. Some common sizes for hazard signs are 3.5" x 5", 5" x 7", 7" x 10", 10" x 14" These sizes ensure that the signs are visible and easy to read. These signs need to be big enough to grab people's attention and small enough to fit in the space available.