Operating and Maintenance Instructions
Inspection intervals
1HSB435409-100 en1 11
7.
Thermovision
measurements
3-6 years or 2,500 mechanical
Close-Open operations.
To be carried out at full load before the
circuit-breaker is taken out of service.
Checking the temperature rise of the
the external parts of the breaking unit.
The maximal allowed temperature
difference between phases is
5 degrees.
Thermovision camera.
The load current must be taken into
consideration during the measurements
as well as large variations in the load
current 3-4 hours before the
measurements.
See manual for the thermovision
camera.
8.
Operational test 3-6 years or 2,500 mechanical
Close-Open operations.
Operational test, if possible in
combination with measurement of
operating times, (incl. Close-Open
times).
To be inspected Inspection interval Measures / Instructions / Tools
To Next Page
Loading...
