UL 2044-2019
商用闭路电视设备 UL 标准（第四版）
UL Standard for Commercial Closed-Circuit Television Equipment (Fourth Edition)
- 标准号
- UL 2044-2019
- 发布
- 2019年
- 发布单位
- 美国保险商实验所
- 当前最新
- UL 2044-2019
- These requirements cover closed-circuit television equipment that: a) Are intended for commercial use on supply circuits as defined in the National Electrical Code@ NFPA 70; and b)...