标准号:IS 9174-1979
发布日期:1979/9/1 12:00:00
实施日期:1999/12/31 12:00:00
适用范围: This standard specifics the overall dimensions for two classes of single hole mounting ( class 1 and class 2 ) lever operated switches for use in 28 V dc and 115/200 V ac, 3-phase, 400 Hz systems in aircraft. Class 1 switches are sealed and are suitable for higher altitudes and temperature conditions. Class 2 switches are sealed only at the lever entry.