Installation
64/214 Revision 06 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DB10 • 864-5091.9
21.3 Checking the SF
6
gas pressure
To exclude any gas losses during transportation in the gas compartments filled at the factory,
check the gas pressure indicators on the panels.
➭ Check the gas pressure in the compartments pre-filled at the factory on the associated gas
pressure indicators. The values must not drop below the temperature-dependent limit
values.
➭ If the filling pressure is too low: Do not assemble the part of the switchgear concerned and
inform the regional Siemens representative.
Fig. 52: Gas pressure manometers at the panel
①
Gas pressure manometers for the busbar
compartments in system 1
②
Gas pressure manometers for the busbar
compartments in system 2
③
Gas pressure manometer for three-
position disconnector housing in
system 2
④
Gas pressure manometer for circuit-
breaker housing
⑤
Gas pressure manometer for three-
position disconnector housing in
system 1
⑥
Critical gas pressure (signaling contact)
⑦
Minimum permissible gas pressure
(signaling contact)
⑧
Actual gas pressure
⑨
Maximum permissible gas pressure
(signaling contact)
Fig. 53: Gas pressure manometer for the circuit-
breaker housing at the panel
DANGER
Operation with incorrect SF
6
gas pressure can destroy parts of the switchgear.
➭ Do not install or put the switchgear into operation with incorrect SF
6
gas pressures.
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