Description: Part of the maintenance time during which active maintenance is carried out on an object; Name: time for active maintenace
Description: Part of the maintenance time when active maintenance is carried out on an item ; Name: Active maintenance time
Description: norm/stipulation describing the explosion protection. The explosion protection type, the device category, the temperature class as well as the device / explosion group are taken from this norm. The type and number of the norm/stipulation with issue year and issue month must be given; Name: Reference norm of the explosion protection