BS EN 50470-2-2006 电学计量设备(a.c.).特殊要求.有功电能(等级指数A、B）电极量表

标准号：BS EN 50470-2-2006
中文标准名称：电学计量设备(a.c.).特殊要求.有功电能(等级指数A、B）电*量表
英文标准名称：Electricity metering equipment (a.c.) - Particular requirements - Electromechanical meters for active energy (class indexes A and B)
标准类型：Q77
发布日期：2006/12/29 12:00:00
实施日期：2006/12/29 12:00:00
中国标准分类号：Q77
国际标准分类号：91.140.50
引用标准：EN 50470-1-2006
适用范围：This European Standard applies to newly manufactured electromechanical watt-hour meters intended for residential, commercial and light industrial use, of class indexes A and B, for the measurement of alternating current electrical active energy in 50 Hz networks. It specifies particular requirements and type test methods.It applies to electromechanical watt-hour meters for indoor and outdoor application, consisting of a measuring element and register(s) enclosed together in a meter case. It also applies to operation indicator(s) and test output(s).If the meter has (a) measuring element(s) for more than one type of energy (multi-energy meters), or when other functional elements, like maximum demand indicators, electronic tariff registers, timeswitches, ripple control receivers, data communication interfaces etc. are enclosed in the meter case (multi-function meters) then this standard applies only for the active energy metering part.This standard distinguishes between:– meters of class indexes A and B;– direct connected and transformer operated meters;– meters for use in networks equipped with or without earth fault neutralizers.It does not apply to:– watt-hour meters where the voltage across the connection terminals exceeds 600 V (line-to-line voltage for meters for polyphase systems);– portable meters.Methods for acceptance testing are covered by the IEC 62058 series of standards 1).The dependability aspect is covered by the documents of the IEC 62059 series.