Maintenance
Maintenance p lan
P51--0001EN/02
2/6
01--2011
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relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is
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GRID
Maintenance p lan
Frequency of
maintenance
Under normal service conditions, the maintenance plan can be defined as
follows:
Type
of inspection
Frequency Remark
Maintenance
visits
Once or twice per year
We recommend at least 2
CO cycles CO per year for
circuit breakers that are
infrequently used, to
check proper functioning
of the circuit breaker and
the associated command---
control circuits.
Inspections Every 5 years
Inspection requires the
equipment to be shut off.
Nonetheless the breaking
chambers and other sub---
assemblies do not need to
be dismantled.
Revision
Once one of the following
criteria is met :
D service duration ≥ 20
years
D number of mechanical
cycles ≥ 3 000
D electrical wear
We nonetheless recommend
inspecting the most used
pole or circuit breaker, and
adapting the maintenance
plan for the other equipment
in accordance with the
observed results.
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