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16.0
Insulator
20.0
Upper pole support (pole head)
27.0
Upper-connection terminal
28.0
Strut
28.1
Centering ring
29.0
Lower-connection terminal
29.1
Flexible connector
29.2
Terminal clamp
30.0
Vacuum interrupter
31.0
Stationary contact
31.2
Upper terminal-bolt
36.0
Moving contact
36.3
Eye bolt (or adapter)
34.0
Bellows (not shown)
35.0
Guide bushing
40.0
Lower pole-support (pole-bottom)
48.0
Insulating coupler
48.6
Angled lever
48.9
Drive link
49.0
Contact-pressure spring
60.0
Operator housing
63.0
Jack shaft
63.7
Lever
64.1
Pawl (not shown)
64.2
Pawl (not shown)
20.0
27.0
31.2
28.0
30.0
31.0
36.0
35.0
28.1
29.1
29.2
36.3
48.9
29.0
48.6
40.0
Figure 14: Type GMSG vacuum circuit breaker pole section
16.0
49.0
48.0
60.0
63.0
63.7
19
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