Guiding The Operator; Working In The Vicinity Of Overhead Power Lines; Working In The Vicinity Of Underground Power Lines - Kubota KX91-3a2 Operator's Manual

Operation

Guiding the operator

If the operator's working and driving area is obscured, the operator must be supported by a guide.
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The guide must be capable of performing this kind of work.
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Before starting work, the guide and the operator must agree the necessary signals.
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The guide's position must be clearly visible by the operator.
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The operator must stop the excavator immediately if the eye contact to the guide is interrupted.
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→ As a rule, either the excavator or the guide may move, never both at once!

Working in the vicinity of overhead power lines

When working with the excavator in the vicinity of overhead power lines and tram lines, a minimum distance as
specified in the following table must be maintained between the excavator and its attachments, and the power
line.
Rated Voltage [V]
over 1 kV
over 110 kV
up to 380 kV or when rated
over 220 kV
If safe distances can not be maintained, the power lines must be switched off in coordination with their owner or
provider and secured against making them live again.
When approaching overhead power lines, any possible movements of the excavator must be taken into
consideration.
Unevenness of the ground or sloping the excavator can reduce the safe distance.
Wind can cause the overhead power lines to sway, thus reducing the safe distance.
In case of a power cross-over, leave the danger zone with the excavator, if possible, by taking suitable
measures. If this is not possible, do not leave the driver's place, warn any approaching persons of the danger
and have the power switched off.

Working in the vicinity of underground power lines

Before starting with excavation work, the owner of the excavator or the person responsible for the work must
check if there are any underground power lines in the proposed working area.
If there are underground power lines present, the position and routing of the power lines must be determined
together with the owners or operators and the required safety measures must be determined.
If power lines are encountered or accidentally damaged, the operator must stop working immediately and
inform the responsible person.
up to 1000 V
up to 110 kV
up to 220 kV
voltage is unknown
Safe Distance [m]
1.0 m
3.0 m
4.0 m
5.0 m
50