UL 466-1999 电表刻度

标准号：UL 466-1999
中文标准名称：电表刻度
英文标准名称：UL Standard for Safety Electric Scales
标准类型：N22
发布日期：1999/3/25 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：N22
国际标准分类号：17.220.20
适用范围：1.1 These requirements cover portable scales, including counter, jewelry, grain, floor and other electronic scale designations. These scales are ordinarily of the computing type, that are rated 250 volts or less. These scales consist of an attachment plug, a length of flexible cord, a switch, one or more lamps, lampholders, ballasts if electric-discharge lamps are used, and associated internal wiring. They are intended to be used in accordance with the National Electrical Code, NFPA 70.1.2 These requirements do not cover scales involving electronic computing features or electrical featuressuch as motor-operated components, relays, and provision for permanent connection to the power supply. Such scales are evaluated under the applicable requirements in the Standard for Information Technology Equipment, UL 60950.1.3 Deleted April 28, 2004.1.4 In this standard, portable equipment is defined as equipment that can be easily moved from one placeto another in normal use.