CRANE FATALITIES

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CRANE FATALITIES
From Jan 1985 - Dec 1989
355 DEATHS
175 from Boom or Crane Contact with energized
powerlines (50)
17 from 2-Blocking (5)
43 from Boom Collapse (12)
48 from Load Dropping (14)
69 from Crane Overturning (19)
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FOR YEARS, BARE UNINSULATED, HIGH-VOLTAGE POWER
DISTRIBUTION AND TRANSMISSION LINES HAVE CREATED
A HAZARD TO USERS OF CRANES AND OTHER EQUIPMENT
THAT CAN REACH AND TOUCH THEM. SUCH POWERLINES
ARE NOT EASILY OBSERVED BY THE EQUIPMENT OPERATOR
AND SUPPORTING WORKCREWS BECAUSE
The power lines are above the operating personnel
and outside normal functional range of
vision. (People generally look horizontal
or towards the ground, not upwards)
The powerlines may be camouflaged. (The viewer
is unable to see the lines against a background
of trees, buildings, etc.)
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While contact with overhead high-voltage lines
represents only 5 of the total electrical
accidents, it is responsible for approximately
45 of the fatalities. MOST OF THESE ACCIDENTS
COULD HAVE BEEN AVOIDED BY THE PROPER
INSTALLATION AND USE OF A HIGH-VOLTAGE PROXIMITY
WARNING SYSTEM. DURING THE PAST 25 YEARS, THERE
HAS NEVER BEEN A SINGLE INJURY OR ACCIDENT
INVOLVING EQUIPMENT EQUIPPED WITH A SIGALARM THAT
IS INSTALLED AND ADJUSTED PROPERLY.
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SIGALARM is a patented, solid state electronic
safety system used for detecting the
electrostatic field of any AC power line. It
provides both audible and visual warning signals
to alert the operator and attendant ground
personnel when the boom comes within proximity of
an energized high-voltage power line. A SIGALARM
system is an electronic eye that serves as a
backup operational aid.
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VIDEO
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Two Operation Modes

• As an automatic early warning system.
• Automatically Starts on Highest Sensitivity
• As a proximity warning system
• Set alarm distance

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Construction Applications

• Cranes
• Shovels
• Concrete Pumps Trucks
• Dump Trucks
• Aerial Lifts
• Boom Trucks
• Drill Rigs
• House Movers

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Other Applications

• Utility Companies
• Fire Departments
• Railroads
• Billboard Equipment
• TV Broadcast Vehicles

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Special Features

• System goes to MAX sensitivity at startup
• Can startup automatically or with switch
• Entire length of boom tip to base is
  protected
• Complete system check can be done at any time
• No false alarms due to external interference
• Provides warning of lightening/electrical
  storms
• Simple adjustment of warning zone
• Operator does NOT need to know voltage of line
• System can be used to confirm powerline shutoff

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COST
On 60Ton (300K) about 1.6 of Cost
On 20Ton (100K) about 5 of Cost
4000 - 5725
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Questions?
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SIGALARM
PMB 405 5224 West State Road 46 Sanford, FL 32771
[phone] [phone] (800)
589-3769 Sigalarm_at_digital.net www.sigalarminc.com