THP 94/42 R 4 XXT
THP 125/42 R 4 XXT
THP 140 H/42 R 4 XXT
GB-07.2005
S
AFETY
INSTRUCTIONS
AND
INFORMATION
C
HAPTER
2
2-19
墌
If the minimum distance cannot be maintained for all possible working positions, it is essential to contact the
electricity supply company.
It may be necessary to forgo the use of the distributor boom altogether and use a separate conveyor pipe.
2.12.2
High-tension contacts
墌
High-tension contacts bring the risk of fatal injury for all persons who are on the machine and in its vicinity or
are in any way connected to it (remote control, discharge hose etc.).
墌
High-tension contacts form a “Voltage funnel” underneath the equipment and in a circle around it. The voltage
decreases as the radius increases.
墌
Every step within the voltage funnel is hazardous.
A step can span two different potentials (step voltage),
so that the current flows through the body in proportion
to the potential difference.
墌
If a high-tension contact occurs, keep calm, stand still
(step voltage), and don’t touch anything.
墌
No-one else should enter the hazard area. Immediately
have the high-tension cable switched off.
墌
After the high-tension cable has been switched off,
move the machine away, help the injured and perform
first aid.
墌
Using remote control protects the machine operator only
if he is standing outside the voltage funnel.
In all other cases all personnel risk fatal injury.
墌
When working close to high-tension overhead cables, have these switched off by competent electricians.
2.12.2.1
Automatic reconnection
墌
Electrical supply systems are equipped with automatic reconnection.
墌
After the switchgear has tripped, the short-circuited cable is automatically reconnected after a brief interval.
墌
It is therefore necessary to arrange permanent disconnection.
5.000 V
10.000 V
15.000 V
20.000 V
Fig. 2.15 Step voltage
