Safety
Safety, Operation and Maintenance Manual - Sep 2012
2-33
SY115C9/135C/155H Crawler Hydraulic Excavator
2.3.25 Overhead power cables
Never drive or operate your machine near
power cables, which may bring electrocution
hazard and cause machine damage, personal
injury or death. The following steps are to be
followed while working at where power cables
could be nearby.
●
Before operation in the vicinity of power
cables, inform local power company of the
coming operation and ask them to take
necessary measures.
●
If your machine is too close to power
cable, electrocution is most likely to occur
and cause burns or death. A safe distance
must be kept between machine and power
cable (See Table 2-1). Before operation,
communicate with local power company
regarding safety measures.
●
A signalman is to be designated to give
signals if your machine is too close to pow-
er cables.
●
Nobody is allowed to approach the ma-
chine when it is operated near high-voltage
cables.
●
If your machine is too close to the cable
or touches the cable, to prevent electrocu-
tion, operator shall not leave the cab until
machine power is surely cut off. In addi-
tion, Nobody is allowed to approach the
machine.
●
To prevent accidents, wear rubber shoes
and rubber gloves during operation. Cover
the operator
’
s seat with rubber sheet and
pay attention to exposed part of body that
should not touch the lower part of machine.
Cable Voltage
Safe Distance
100V-200V
2 m ( 7 ft) or above
6,600V
2 m ( 7 ft) or above
22,000V
3 m ( 10 ft) or above
66,000V
4 m ( 14 ft) or above
154,000V
5 m ( 17 ft) or above
187,000V
6 m ( 20 ft) or above
275,000V
7 m ( 23 ft) or above
500,000V
12 m ( 36 ft) or above
CZ335-1102020
Fig. 2-40
Table 2-1
