Services And Maintenance Support

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Services And Maintenance Support

A device placed in given conditions is subjected to its effects. The main factors that accelerate device ageing are:

Temperature

Vibration

Relative humidity

Salt environment

Dust

Corrosive atmospheres.

Percent load

Current harmonics

Preventive Maintenance

Preventive maintenance consists in carrying out, at predetermined intervals or according to prescribed criteria, checks intended to reduce the probability of a failure or deterioration in the operation of a system. There are two types of preventive maintenance:

Periodic Maintenance

For each type of product, maintenance recommendations have to be formalized in a dedicated document by the technical department. These verification procedures, intended to maintain systems or their subassemblies in correct operating condition over the targeted service life, must then be carried out according to the time intervals stipulated in this document.

Conditional Maintenance

To a certain extent, conditional-maintenance operations are a means to reduce (but not eliminate) the recommended periodic-maintenance operations (thus limited to the strict minimum) that require an annual shutdown of the installation. These operations are launched when programmed alarms indicate that a predefined threshold has been reached. (Number of operation > durability, aging indicators…) Electronic trip units in power circuit breaker can propose such functions. Conditional maintenance is the means to optimize installation maintenance.

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