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2.9. Safety instructions for working with electrical equipment
DANGER
Injury to persons
Improper use of electrical equipment while standing on the product may lead to injury. Only use electrical
equipment under the following conditions:
With safety extra-low voltage (48 V)
With protective insulation (separation transformer)
If the equipment is connected via an earth-leakage circuit breaker with a maximum residual current of 30 mA
DANGER
Injury to persons
Failure to observe proper practices when working near live systems may lead to injury. Only use the product near
such systems if the following conditions are met:
The unit is disconnected and secured against being switched back on.
The section of the unit in question is de-energised.
The section of the unit is earthed by means of an earthing strap.
The section of the unit is insulated from any adjacent current-bearing components.
DANGER
Injury to persons
Failure to observe proper practices when working near overhead powerlines may lead to injury. Only use the
product near such overhead lines if the following conditions are met:
The safety clearances are observed as shown in the table below.
When calculating safety clearances, take the swing radius of powerlines and movement radius of working
personnel into account. The movement radius of working personnel also includes any objects they are
holding.
If it is impossible to observe the safety clearances, have the powerline operator disconnect the powerlines
and secure them against being switched back on.
220 kV – 380 kV or if the rated voltage is not known
Rated voltage
< 1,000 V
1 kV – 110 kV
110 kV – 220 kV
Safety clearance
1.0 m
3.0 m
4.0 m
5.0 m
EN
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