UL 917-1994 标准详情
- 标准号:UL 917-1994
- 中文标题:钟控开关
- 英文标题:(Clock-operated switches
- 标准类别:美国保险商实验室标准UL
- 发布日期:1994-07
SCOPE THESE REQUIREMENTS COVER CLOCK-OP ERATED SWITCHES RATED 600 V OR LESS, TO BE USED IN ORDINARY LOCATIONS DESIGNED TO CLOSE AND OPEN CIRCUITS TO A LOAD AT PREDETERMINED INTERVALS, AND INTENDED TO BE EMPLOYED I N ACCORDANCE WITH THE NATIONAL ELECT
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