
LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 5-3: CONTROL CIRCUIT DEVICES AND SWITCHING ELEMENTS - REQUIREMENTS FOR PROXIMITY DEVICES WITH DEFINED BEHAVIOUR UNDER FAULT CONDITIONS (PDDB)
出版:Comitato Elettrotecnico Italiano

專(zhuān)家解讀視頻
Gives additional requirements to those given in IEC 60947-5-2. It describes the fault performance aspects of proximity devices with a defined behaviour under fault conditions (PDDB).