What is the key distinguishing factor of preventative maintenance compared to other types?

Preventative maintenance is characterized by its focus on performing maintenance activities at set intervals or after certain operational periods to ensure that equipment remains in optimal working condition and to prevent potential failures. This approach is proactive rather than reactive; it aims to anticipate and mitigate issues before they arise, thereby enhancing reliability and extending the lifespan of the equipment.

In contrast, other types of maintenance, such as corrective maintenance, are reactive and take place after a malfunction has already occurred. Similarly, addressing previous incidents tends to fall under corrective measures rather than preventative strategies. Finally, while planned maintenance may be conducted according to a schedule, it is the specific link to operational periods that categorizes it distinctly as preventative maintenance. This distinction highlights its role in proactive management rather than simply being systematic or scheduled.