6
1.5 Safety provisions
The user shall ensure that the work
described in this manual is carried
out only by the manufacturer's Ser-
vice Centre staff, or by personnel
qualified and authorized to assemble
and test WS switchgear.
Read these instructions carefully
before starting work on the switch-
gear, and perform the work detailed
in them as described. Do not per-
form any work on the switchgear
panel which is not described in this
technical instruction.
Applicable standards and
regulations :
Please comply with:
• the locally applicable health and
safety, operating and work in -
structions
• Installation:
IEC 61936-1 / HD 637 S1
• Operation of electrical installa -
tions EN 50110-1
Important!
Operating reliability and
useful life depend on correct
opera tion.
Before performing work on the
panel, make sure to comply with the
following instructions:
Warning!
Before starting work on
the high-voltage com-
ponents, de-energize
the system, verify it for zero
voltage and earth the system
according to the applicable
safety rules pursuant to
EN 50110-1.
Warning!
After removal of covers,
operator safety acc. to
IEC 60298 may be
restricted if the appropriate
part of the switchgear unit has
not been isolated from the
power supply.
Warning!
Before performing work
on the drives, switch off
the auxiliary circuit and
prevent it from reclosing.
Warning!
There is a risk of injury
when working on the
drive mechanism.
Release the circuit-breaker’s
energy storing device by per -
forming the cor responding
• OFF-ON-OFF operating
sequence.
• in case of a make-proof
earthing switch, by the
appropriate ON-operation.
Action in the event of incidents or
accidents
The WS switchgear panels feature
pressure relief ports for the case of
an internal arc fault; these en sure
operator safety according to
IEC 60298.
In the event of fire or of internal
faults, substances hazardous to
health and toxic or caustic decom-
position products of the insulating
gas may develop. Comply with the
locally applicable accident and
safety provisions.
In the event of injury to personnel,
ensure that appropriate first-aid
measures are taken.
1.6 Disposal at the end
of service life
The following documents can be
provided on request for the disposal
of WS switchgear at the end of their
service lives:
- Technical Instruction “Use and
handling of insulating gas SF
6
"
- Material and utilization data sheet
Disposal at the end of the service life
is performed as a service by the
Service Center at the manufacturer's
which is subject to a fee.
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