do not climb sign

Do Not Climb Signs

Transmission towers need to be marked with work safety signs for compliance to warn unauthorized people, as well as technicians about the safety of climbing towers.  Electrical Transmission Towers need to meet the standard from the Telecommunications Industry Association/Electronic Industries Association (TIA/EIA) 222 for tower construction and 29 CFR 1910.66 Appendix C for anchorages.  When these towers do not comply with these standards, they are required to be marked as “Do Not Climb.”

Additionally, Do Not Climb signs act like a high voltage warning label and voltage markers in one by denoting in bold letters, the dangerous high voltage.  They also identify the power company owning the towers.

do not climb safety sign

Electricity takes the easiest, most direct path to the ground.   Electrical contact between an object, or person, on the ground can occur even if there is no direct contact.   With high voltage electrical transmission lines, energy can arc across airspace.  The National Electrical Safety Code specifies the minimum distances between power lines and the ground to avoid electrical accidents and general safety.

Electrical transmission towers carry enormous amounts of electricity which is sent to electrical substations to be “stepped down” or lessened to a lower voltage that is suitable for consumer usage.  Climbing and contact these towers is for authorized utility personnel only.   Towers are clearly marked for safety with High Voltage signs and Do Not Climb signs to warn people of the danger of electrical shock and electrocution from close contact with the towers.

LEM Do Not Climb Signs are available in both stock and custom designs.  Standard sizes are 7″ x 10″ and 10″ x 14.”

Materials availability include 0.032″ thick Baked Aluminum, 0.060″ thick Fiberglass and 0.032″ Polyethylene Plastic.  Signs come with pre-drilled mounting holes in each corner.

do not climb signs