Functional description
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Flooding the gas compartment with ambient air
In case it is necessary to open the gas compartment for maintenance works it is under vacuum after the
recovery of SF
6
gas.
The gas from the connecting hoses and the piping should be recovered beforehand.
1. Connect the gas compartment to pos. 101.
2. Open the venting ball valve (pos. 201) and wait for pressure compensation.
3. After having reached pressure compensation it is absolutely necessary to close the venting ball
valve (pos. 201) to avoid gas from flowing into the atmosphere later on during gas handling.
After flooding uncouple the connecting hose from the gas compartment and evacuate
to < 1 mbar. (see “Evacuation of the gas compartment“).
This is to avoid mixing ambient air from the connecting hose with gas later on during
gas handling.
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