Keeping you safe is our business
Conditions that can make more frequent maintenance necessary are:
- High humidity and ambient temperatures
- Corrosive atmosphere
- Excessive dirt and dust
- High repetitive duty
- Frequent interruption of faults
- Older equipment
- History on preceding inspections
QETAF provides the complete electrical testing, maintenance and engineering services you need to extend the life of your switchgear and to keep your switchgear operational for as long as possible.
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 optimise installation maintenance.