21
9.5
Systematic preventive maintenance
A systematic check of all High VolĆ
tage connections tightening points
may be requested by the customer.
Every 3 operations, it is therefore
necessary to replace all of these
threaded fasteners .
9.6
Maintenance following an intensive operating rhythm
Under normal installation and serĆ
vice conditions, the period of operaĆ
tion of a circuit breaker can go up
to 10,000 cycles, on condition that
the provision of periodic preventive
maintenance services are carried
out every 2,500 cycles).
A specific maintenance programme
must therefore be drawn up in
accordance with the circuit
breaker's service conditions.
Contact the AREVA After-Sales
Dept. (See § 1.1).
9.7
Pole linkage lubrication points
Apply the General Safety
Instructions for Electrical
Applications and the particular
regulations for the network
concerned for locking out
procedures.
Greases: (See §2.6)
Duration: 1 h 30
01
01
01
01
9.8
Recommendations for the poles of the circuit breaker
The circuit breakers are
delivered with their poles
sealed and leaktight.
Verification of the SF6 gas
pressure is not recommended
because it leads to a loss of gas.
No control is required during
the service life of the circuit
breaker (contact resistance etc.).
9.9
Corrective maintenance
C O R R E C T I V E M A I N T E N A N C E
Levels
Replacements or modifications
See chapter
1 2 3
Replacement of a pole
10
- X X
9.10 Spare parts
See the instructions in the
AMTNoT017-02 manual.
