20
9 Maintenance ć Spare Parts
9.1
Levels of maintenance
D e s c r i p t i o n
Levels
Operations recommended in the instructions manual "installation - operation - maintenance", carried
out by suitably qualified personnel having received training allowing them to intervene whilst respecĆ
ting the safety rules.
1
Complex operations, requiring specific expertise and the implementation of support equipment in
accordance with AREVA's procedures. These are carried out by AREVA or by a specialised techniĆ
cian, trained by AREVA (see § 1.2) in the implementation of procedures, and who is equipped with
specific equipment.
2
All preventive and corrective maintenance, all renovation and reconstruction work is carried out by
AREVA.
3
9.2
General Instructions
Never separate the control
mechanism from the circuit
breaker.
Never dismantle the linkages
from the poles.
9.3
Maintenance of the BLR ć BLRM control mechanism
Before lifting off the cover of
the control mechanism:
- cut off the auxiliaries power
circuits,
- Operate the operating button
several times, in both directions, in
order to ensure that the springs
have been released.
See the instructions in the
AMTNoT017-02 manual.
9.4
Standard maintenance of the circuit breaker" part
This applies for a normal operating
rhythm by the circuit breaker
(< 2,500 cycles).
By cycle we mean a closing then
an opening operation.
For an intensive operating rhythm,
please refer to § 9.6.
P R E V E N T I V E M A I N T E N A N C E
Frequency
Levels
Recommended operations
3 years
6 years
1 2 3
Verification of the presence and condition of accessories (levers, etc.)
X
-
X X X
Visual inspection of the exterior (cleanliness, absence of oxidation, etc.)
X
-
X X X
Cleaning of external elements, with a clean, dry cloth.
X
-
X X X
Checking the tightness to torque (covers, wiring ducts, connections, etc.)
X
-
X X X
Checking the mechanical controls by carrying out a few operations
X
-
X X X
Checking the positioning of the status indicators (armed, open and closed)
X
-
X X X
Control of the status and functioning of locking by key locks
X
-
X X X
Dusting and cleaning the internal mechanical elements and poles (without solvent)
X
-
- X X
Inspection of the tightening of the threaded fasteners and presence of internal
stop elements*
-
X
- - X
Cleaning the internal mechanical elements (with solvent)
-
X
- - X
Lubrication and greasing of mechanical elements (with recommended products)
-
X
- - X
Monitoring the general appearance of the mechanical components and connections
-
X
- - X
* Never intervene on the
external linkage fasteners fo
the poles. These bolts have been
tightened to torque, then coated
with red nail varnish.
