Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: EN 60947-5-2:2007/A1:2012 (IEC 60947-5-2:2007/A1:2
• Năm ban hành / Publication date: 1970
• Tình trạng / Status: A - Còn hiệu lực
• Tên tiếng Anh / Title in English: Low-voltage switchgear and controlgear - Part 5-2: Control circuit devices and switching elements - Proximity switchesIEC 60947-5-2:2007
• Phạm vi áp dụng / Scope of standard: This part of IEC 60947 applies to inductive and capacitive proximity switches that sense the presence of metallic and/or non-metallic objects, ultrasonic proximity switches that sense the presence of sound reflecting objects, photoelectric proximity switches that sense the presence of objects and non-mechanical magnetic proximity switches that sense the presence of objects with a magnetic field. These proximity switches are self-contained, have semiconductor switching elements(s) and are intended to be connected to circuits, the rated voltage of which does not exceed 250 V 50 Hz/60 Hz a.c. or 300 V d.c. This Standard is not intended to cover proximity switches with analogue outputs. The main changes with respect to the previous edition are as follows:-modification of Table 3; -modifications of voltage dips and voltage interruptions immunity tests, in Table 8; -modification of status of Annex A, now informative.