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Mid-Mount Ascendant Aerial Tower / 1-15
SAFETY
1-9.5 Electrocution Hazard from Overhead Power Lines
Figure 1-9: FAMA35 Danger Label
FAMA35
Overhead power lines are not insulated. Some lines have a weather resistant covering and appear to be insulated,
they are not. The apparatus or parts of the apparatus do not need to touch the power line for the apparatus to
become energized. Electricity will arc across a gap and all overhead wires or cables should be considered
hazardous and dangerous. Follow these guidelines when working in the vicinity of power lines.
•
Do not work within 20 feet of power lines energized up to 350kV.
• Do not work within 50 feet of high-voltage transmission lines if the voltage is unknown. These are the high-
tension wires that transport electricity over long distances. They are at greater distance from the ground than
lower voltage lines, but still may be within the reach of an aerial ladder or platform. Contact the utility company
in your response area and learn to recognize the difference.
• Only operate in conditions where the apparatus and equipment can be stabilized. Do not set up or operate on
soft soil, mud, snow or other unstable ground conditions that could allow the apparatus or equipment to shift and
move within 20 feet of a power line.
• Look up and Live. Always check the operating area for power lines before you drive into it. Tree branches can
hide power lines or cables from view. If operating at night, use powerful lights to search for power lines or poles.
1-9.5a Power Line Contact Emergency Procedure
If you are on or inside a apparatus that contacts or is energized by a power line, stay where you are. Unless the
apparatus is on fire, it is safer to stay in the apparatus than to attempt an exit. Stay in or on the apparatus until a
power company representative informs you that the line has been de-energized and that the area is safe.
If it is critical that you leave the apparatus, JUMP as far away as possible landing with both feet together. Do not fall
back towards the apparatus which could result in your body becoming a pathway between the apparatus and the
ground. Allow no part of your body to touch the apparatus and the ground at the same time.
If you are outside of the apparatus that contacts or is energized by a power line, move away from the apparatus by
shuffling your feet, keeping both feet on the ground at the same time. The ground becomes charged in concentric
circles around the apparatus with varying voltage potential. Straddling these bands can result in serious injury or
death as the current passes through your body. Warn others to stay away. Do not approach the apparatus until a
power company representative informs you that the line has been de-energized and that the area is safe
DANGER
Do not paint over this label. Replace if damaged or lost FAMA35
Electrocution Hazard - Equipment is not insulated
NEVER approach or contact power lines with any
part of this equipment.
Keep 50 feet from power line if voltage is not known.
Keep 20 feet from power line 350 kilovolts or less.
Account for swaying motion of power lines and
apparatus.
Use light to search for power lines in the dark.
Do not step off a charged vehicle.
Approaching or contacting a power line will injure or kill.