UL 150-2004 天线旋转器

标准号：UL 150-2004
中文标准名称：天线旋转器
英文标准名称：UL Standard for Safety for Antenna Rotators
标准类型：M51
发布日期：2004/11/9 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：M51
国际标准分类号：33.120.40
适用范围：1.1 These requirements cover antenna rotators intended for household and commercial use on supplycircuits in accordance with the National Electrical Code, NFPA 70.1.2 An antenna rotator generally consists of:a) A mast-mounted (generally outdoors), motorized drive unit that rotates the antenna to thedesired receiving azimuth,b) An indoor-located (usually near television- or radio-receiving equipment) user-operatedcontrol unit that delivers operating power and direction signals to the drive unit, and,c) A length of multiple-conductor Class-2 circuit cable to electrically interconnect the drive unitand the control unit. Some antenna rotating units may control antenna elevation separately or in addition to azimuth. In some cases, the drive unit may be located indoors.1.3 The power used to drive the motor of an antenna rotator is derived from a circuit complying with Class 2 limitations in accordance with Article 725 of the National Electrical Code, ANSI/NFPA 70.1.4 These requirements do not cover systems that use a stationary antenna and change or rotate thereceiving pattern by electronic or switching means. Such systems are covered by the Standard forAudio-Video Products and Accessories, UL 1492.