Applies to proximity sensors connected for operation by a two-wire connecting cable to the control input of a switching amplifier. The switching amplifier contains a d.c. source to supply the control circuit and is controlled by the variable internal resistance of the proximity sensor. These devices can be used in an explosive atmosphere if they also comply with IEC 60079-11 (published in South Africa as an identical adoption under the designation SANS 60079-11).
Số hiệu tiêu chuẩn
SANS 60947-5-6:1999*SABS IEC 60947-5-6:1999
Tên tiêu chuẩn
Low-voltage switchgear and controlgear Part 5-6: Control circuit devices and switching elements - DC interface for proximity sensors and switching amplifiers (NAMUR)
Ngày phát hành
2001-08-27
Tiêu chuẩn tương đương
IEC 60947-5-6 1999 IDT
Tiêu chuẩn liên quan
IEC 60079-11 * IEC 60947-1 * IEC 60947-5-2
Từ khóa
CONTROL DEVICES * CONTROLGEAR * LOW VOLTAGE * SENSORS * SWITCHES * SWITCHGEAR * Low voltage * Switches * Control devices * Sensors * Pick-ups * Switchgear * Circuit closers
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