IG-322-EN version 03; 22/07/2022
55
General instructions
SF
6
-insulated circuit-breaker panel:
Type
gae
.630 -1LSV(G)-/5/
in modular extensible design up to 24 kV, 20 kA
Maintenance
7.2. Inspection and maintenance
7.2.1. Inspection
Prior to inspection, electrically isolate and secure the
operating range in accordance with the “safety rules”
specified by DIN VDE/IEC.
An inspection, in accordance with DIN EN 50110-1/-2,
DIN VDE 0105-100, DGUV (see chapter 2.2) should be
carried out approximately every 4 years, depending upon
the operating conditions and local circumstances.
In exceptional operating conditions (these also include
harsh climatic conditions) and/or heavy pollution
(including heavy soiling and aggressive air), inspection may
be required at significantly shorter intervals.
Inspection includes:
• Check the gas filling pressure (see chapter 4.4 and
chapter 4.5).
• Check switchgear and switching devices for anything
unusual, soiling and the result of environmental effects.
• Perform several no-load switching operations, this
instruction applies particularly to circuit-breakers that
are switched infrequently in operation.
• Check function of the switching device, e. g. its
actuating device, interlocking devices, trigger devices
and signalling devices and any other devices.
• Shut down motor winding (if fitted). On the circuit-
breaker, actuate the ON and OFF pushbuttons as follows:
OFF-ON-OFF.
• Inspect the condition of the lubrication at the bearing
points, sliding surfaces, etc. (see * in Figure 7.1).
• Determine the subsequent measures (maintenance,
service) taking into account the number of operating
cycles.
Figure 7.1.
Summary of Contents for ORMAZABAL gae.630
Page 63: ......