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Durability: The term "durability" is used in the standards instead of "endurance" to express the expectancy of the number of operating cycles which can be performed by the equipment before repair or replacement of parts. The term "endurance" is used for specifically defined operational performance.
Electrical durability
IEC 60947-1 With respect to its resistance to electrical wear, equipment is characterized by the
number of on-load operating cycles, corresponding to the service conditions given in
the relevant product standard, which can be made without re replacement.
Mechanical durability: With respect to its resistance to mechanical wear, equipment is characterized by the number of no-load operating cycles which can be effected before it becomes necessary to service or replace any mechanical parts
Electrical durability
IEC 60947-1 With respect to its resistance to electrical wear, equipment is characterized by the
number of on-load operating cycles, corresponding to the service conditions given in
the relevant product standard, which can be made without re replacement.
Mechanical durability: With respect to its resistance to mechanical wear, equipment is characterized by the number of no-load operating cycles which can be effected before it becomes necessary to service or replace any mechanical parts
Released for:Schneider Electric Egypt and North East Africa
