SAFETY INSTRUCTIONS
15
4.3.1
Danger from electrical energy
Perform the following safety work according to VDE 0105-100 (this work must be carried out by a qualified elec-
trician, see chapter: "2 security").
Activate
The required separation distances must be established.
Secure against restart
During work, a prohibition sign must be attached reliably on switching handles or drives of switches, control
units, pressure and sensing devices, safety parts, circuit breakers that have been used to unlock a system part
or that can be used to connect electricity. If this is not possible, then the clearly associated prohibition sign
must be nearby. Existing mechanical interlocking devices against restart must be used for manually operated
switches.
Determine absence of voltage
Absence of voltage is to be determined at or as close as possible to the work site at all pins. Absence of voltage
must be checked with a voltage tester immediately before and after use.
Grounding and short-circuiting
Parts on which work will be performed at the work place must first be grounded and then short circuited.
Grounding and short-circuiting must be visible from the workplace. Deviating from the above, it is permitted to
ground and short-circuit near the work place if this is required due to local conditions or for safety reasons.
Devices for grounding and short-circuiting must always first be connected with the grounding system or the
ground electrode and afterwards with the parts to be grounded. Grounding and short circuiting may be waived
in certain low-voltage systems (see VDE 0100-100).
Cover adjacent, live parts or isolate them
Before starting work, check whether it is appropriate to make adjacent parts voltage-free.
DANGER!
Danger of death due to electrical current!
Contact with live parts can result in life-threating injuries.
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Make sure that the relevant components are not live or under voltage, and that
there is no unauthorized approximation.
