10 IMT Electric-Hydraulic Crane Operation & Safety Manual # 99903618
8 Covers and Guards - Check for missing or improperly maintained covers and guards.
9 Remote Control - Check engine stop switch for function and corrosion.
10 Operation Placards and Safety Decals - Check for illegible or missing decals and placards.
Refer to the decal section of this manual for more information on the required decals.
Replace or repair any items as needed prior to equipment operation.
Electrical Hazards
Always operate the crane so that no part of the crane or load enters the "Danger Zone", the
minimum clearance distance for a powerline.
NOTE
THE DANGER ZONE OF A PARTICULAR POWERLINE IS BASED UPON ITS VOLTAGE.
HIGH VOLTAGE LEVELS INCREASE THE DANGER ZONE. SEE FIGURE.
DANGER ZONE
AVOID THIS AREA.
DANGER ZONE FOR CRANES
OPERATING NEAR ELECTRICAL
POWERLINES
REQUIRED CLEARANCE OF CRANES FROM ELECTRICAL TRANSMISSION LINES
NORMAL VOLTAGE
kV (Phase to Phase)
MINIMUM CLEARANCE
REQUIRED Feet (meters)
From 0 to 50 10 (3.05)
From 50 to 200 15 (4.60)
From 200 to 350 20 (6.10)
From 350 to 500 25 (7.62)
From 500 to 750 35 (10.67)
OPERATION NEAR HIGH
VOLTAGE POWERLINES
From 750 to 1000 45 (13.72)
From 0 to 0.75 4 (0.22)
From 0.75 to 50 6 (0.83)
From 50 to 345 10 (3.05)
From 345 to 750 16 (4.87)
OPERATION IN TRANSIT WITH
NO LOAD AND BOOM OR MAST
LOWERED
From 750 to 1000 20 (8.10)
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