Description: Number of following references to Subsystem; Name: Number of references to subsystems
Description: number of following references to subsystem; Name: number of references to subsystem
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