Alstom GL314 - Page 91

Installation
Filling with SF
6
gas
L32--007EN/01
5/8
07--2002
E ALSTOM
Checking pressure, continued
Decision table
The table below gives the process depending the pressure measured :
14
16
If the pressure measured is ... Action
correct End of control
too high
Adjust the pressure by means of valve
(16) on the gauge (14) to reach the re-
quired corrected pressure.
Top--up with SF
6
gas
If the pressure
adjustment
is ...
Action
£ 0.05 MPa End of control
too low
> 0.05 MPa Proceed to a
new inspection
after a stabiliza-
tion period of
2--3 hours.
End of control
The table below gives the end steps of the checking pressure :
Step Action Diagram
1 Disconnect the gauge (14)
0-- 1 MPa.
14
2 S Remove the filling tool (2) and
re--install the plug (17), applying
a tightening torque of 4 daN.m;
leak--tightness is only guaranteed
if this condition is respected.
S Screw the valve--cap (3) on
the filling tool (2).
3
2
17