Zoomlion ZCC1100, Operator'S Manual, Page: 119 / 291

履带起重机操作手册
安
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Operator’s Manual for Crawler Crane
Operator’s Manual for Crawler Crane
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ZCC1100H Crawler Crane 3-37
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Do not attempt to put out the fire before the fire department arrives unless lives
are in danger or there is a risk of major damage to property.
-
If the gas fire is not causing any immediate danger, it is sometimes better to let
the gas burn. As soon as the gas company shuts off the gas pipe, the fire will
extinguish itself.
3.7.7 Notes in connection with underground electric cables
a) For excavation work, observe the minimum safe distance from the underground cable (at
least 3
’4” (1 m).
b) Even minor damage to the outer casing of an underground cable should be reported to the
relevant power station. If damp is allowed to penetrate, the cable could fail in the future.
The location of such a fault is to be precisely measured to establish who or what caused
the damage.
3.7.8 The consequences of damaging an underground cable
a) After it has penetrated the insulation, the machine can become charged with a
dangerously high voltage.
b) If an underground cable is sheared, burn-out at the fault location with strong electrical
arcing may occur.
c) If a high-voltage power cable becomes damaged, a hazardous resistance area may form
around the fault location.
WARNING
(1) The safety devices of the various national electricity networks react differently in
the event of a fault. Therefore it cannot be taken for granted that there will be an
automatic and lasting shut-down following damage to an underground cable.
(2) The machine and the damaged underground cable can therefore still be under
hazardous voltage levels and form a resistance area, even if there are no discharge,
smoke formation or cracking noises.
3.7.9 The measures taken when the machine damages an underground cable
a) First, remain calm
– do not panic.
b) Do not leave the operator
’s cab.
c) If the controls are still functioning:
1) Initiate travel in the opposite direction immediately and disconnect the underground
cable.
2) Then drive the machine out of the danger area.
3) Only stop the machine once the distance from the fault location is
–
At least17ft (5 m ) in the case of a low-voltage cable (lower than 1000V),
For reference only.
Operators manual should be consulted and adhered to.