Komatsu PC210-10 DEMOLITION BASE SPEC., Operation & Maintenance Manual, Page: 44 / 458

PRECAUTIONS FOR OPERATION SAFETY
2–26
DO NOT GO CLOSE TO HIGH-VOLTAGE CABLES
Do not go close to high-voltage cables:PC-0000-17TK00A
Do not travel or operate the machine near electric cables.
There is a hazard of electric shock, which may cause serious
personal injury or death. On jobsites where the machine may
go close to electric cables, always do as follows.
q
Before starting work near electric cables, inform the local
power company of the work to be performed, and ask them
to take the necessary action.
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Even going close to high-voltage cables can cause electric
shock, which may cause serious burns or even death.
Always maintain a safe distance (see the table on the right)
between the machine and the electric cable. Check with the
local power company about safe operating procedure
before starting operations.
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To prepare for any possible emergencies, wear rubber
shoes and gloves. Lay a rubber sheet on top of the seat,
and be careful not to touch the chassis with any exposed
part of your body.
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Use a signalman to give warning if the machine approaches
too close to the electric cables.
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When carrying out operations near high voltage cables, do
not let anyone near the machine.
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If the machine should come too close or touch the electric
cable, to prevent electric shock, the operator should not
leave the operator's compartment until it has been con-
firmed that the electricity has been shut off. Also, do not let
anyone near the machine.
ENSURE GOOD VISIBILITY
Ensure good visibility:ALL-0000-17UK00A
This machine is equipped with mirrors and cameras to ensure good visibility, but even then there are places that
cannot be seen from the operator's seat, so be careful when operating.
Before travelling or operating the machine, the operator should sound the horn to warn people in the area.
When travelling or carrying out operations in places with poor visibility, it is impossible to check for obstacles in the
area around the machine and to check the condition of the jobsite. This leads to danger of serious personal injury
or death. When travelling or carrying out operations in places with poor visibility, always observe the following.
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Position a signalman if there are areas where the visibility is not good.
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Only one signalman should give signals.
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When working in dark places, turn on the working lamp and front lamps installed to the machine, and set up
additional lighting in the work area if necessary.
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Stop operations if the visibility is poor, such as in mist, snow, rain, or dust.
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When checking the mirrors installed to the machine, remove all dirt and adjust the angle of the mirror to ensure
good visibility.
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If the machine is equipped with cameras, clean off any dirt from the lens and make sure that the camera gives
a clear view. If there is any problem with the camera and the rear view cannot be displayed, contact your
Komatsu distributor immediately and ask for repairs to be carried out.
Voltage of Cables Safety Distance
100 V – 200 V Over 2 m
6,600 V Over 2 m
22,000 V Over 3 m
66,000 V Over 4 m
154,000 V Over 5 m
187,000 V Over 6 m
275,000 V Over 7 m
500,000 V Over 11 m