UL 268A-1998 标准详情
- 标准号:UL 268A-1998
- 中文标题:管道烟雾探测器
- 英文标题:(Smoke detectors for duct application
- 标准类别:美国保险商实验室标准UL
- 发布日期:1998-05
1 SCOPE1.1 THESE REQUIREMENTS COVER AIR DUCT SMOKE DETECTORS INTENDED FOR INDOOR USE WITHIN OR PROTRUDING INTO A DUCT, OR MOUNTED IN A HOUSING WITH SAMPLING TUBES EXTENDING INTO OR TRAVERSING A DUCT. AIR DUCT SMOKE DETECTORS ARE INTENDED TO BE INSTAL
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