Description: time period during which all the performance requirements are met; Name: usefull life
Description: Time interval from first use until the instant when a limiting state is reached ; Name: useful life
Description: The EU directive 2014/34 (ATEX) classifies explosion-proof devices into categories in Europe. At the international level, there was introduced the EPL (Equipment Protection Level); Name: Explosion protection Equipment Protection Level (EPL) of the electric motor