GE SF6 - Page 125

Installation
Vacuum operation
GE Information08- 2016 L31- 881EN04
3/6
Vacuum operation with nitrogen purging (N
2
)
Preparing the
nitrogen bottle (N
2
)
The table below gives the steps of preparing the nitrogen bottle (N
2
):
Step Action Diagram
1 Remove the cover (6) and plug (7)
from the nitrogen (N
2
) bottle (8).
7
6
8
N
2
2 Fit the pressure reducer (10) on
the nitrogen (N
2
) bottle (8).
8
10
N
2
3 Briefly open the nitrogen (N
2
)
bottle tap (9) and the cock (11) of
the pressure reducer to eliminate
any air inside the piping (approx.
20 s at low flow- rate).
9
Open
Closed
N
2
11
4 Close the bottle tap (9) and the
cock (11) of the pressure reducer.
NOTE
: Keep the end of the
tube (12) in high position to
keep the nitrogen (N
2
)whichit
contains and to prevent damp
air from entering.
9
12
Closed
11
N
2
END OF PROCEDURE
Continued on next page.