Inspection & Maintenance
4.1 General
3WJ Air Circuit breakers
166 Operating Instructions, 12/2022, L1V30828903001-01
4. Qualification of inspection and maintenance personnel
Inspection and maintenance work may only be performed by qualified operator personnel
or by a qualified contracted company. This includes replacement of the contact system.
For more information, see Chapter Maintaining the main contacts.
5. Time required until the circuit breaker or power distribution equipment is ready for
operation
The low inspection and maintenance requirements and the possibility for work to be
performed locally by qualified personnel mean that the circuit breaker and power
distribution equipment are ready to return to operation in a very short time.
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