Doosan DX35Z, Operation And Maintenance Manual

Page: 38 / 211

OP000468 Safety
1-32
To avoid hitting the work equipment, always do the
following:
• When working in tunnels, on bridges, under
electrical wires, or when parking the machine or
carrying out other operations in places with limited
height, be extremely careful not to hit the bucket
or other parts.
• To prevent collisions, operate the machine at a
safe speed when working in confined spaces,
indoors, or in crowded areas.
• Do not pass the bucket over the heads of workers
or over the operator's cabin of dump truck.
Avoid High-voltage Cables
Serious injury or death can result from contact or proximity
to high-voltage electrical lines. The bucket does not have to
make physical contact with power lines for current to be
transmitted.
Use a spotter and hand signals to stay away from power
lines not clearly visible to the operator.
Use these minimum distances as a guideline only.
Depending upon the voltage in the line and atmospheric
conditions, strong current shocks can occur with the boom
or bucket as far away as 4 - 6 m (13 - 20 ft.) from the
power line. Very high voltage and rainy weather could
further decrease that safety margin.
NOTE:
Before starting any type of operation near power lines
(either above ground or buried cable type), you
should always contact the power utility company
directly and work out a safety plan with them.
Figure 23
FG006346
FG006347
Figure 24
Voltage Minimum Safe Distance
6.6 kV 3 m (9' 10")
33.0 kV 4 m (13' 1")
66.0 kV 5 m (16' 5")
154.0 kV 8 m (26' 3")
275.0 kV 10 m (32' 10")