本文件规定了安装式数字显示功率表和无功功率表的产品分类、分级和符合性、技术要求、信息、通用标志和符号、检验规则以及包装、贮存与运输。本文件适用于新制造的直流750 V以下和交流690 V以下、标称频率为50 Hz或60 Hz的配电系统中测量功率的安装式数字显示功率表和无功功率表,也适用于具有模拟/数字双显示的功率表和无功功率表的数字显示部分。本文件不适用于:--只具有直接作用模拟指示的功率表和无功功率表;--便携式数字显示的功率表和无功功率表;--另有国家标准(或行业标准)的特殊用途的功率表和无功功率表。注: 本文件中“仪表”指数字显示功率表和数字显示无功功率表。
定价: 38元 / 折扣价: 33 元 加购物车
本文件规定了安装式数字显示电测量仪表的术语和定义,产品分类、分级和符合性,技术要求,信息、通用标志和符号,包装、贮存与运输以及检验规则。
本文件适用于新制造的直流750 V以下和交流690 V以下、标称频率为50 Hz或60 Hz的配电系统中测量各种电参量的安装式数字显示电测量仪表。
注: 上述提及的“直流750 V以下的配电系统中”不适用于频率表、相位表和功率因数表。
本文件适用于以下具有数字显示的测量电参量的安装式电测量仪表:
——电流表和电压表;
——功率表和无功功率表;
——频率表;
——相位表和功率因数表;
——绝缘电阻表;
——上述形式的任意两种及以上组合的多功能仪表;
——具有模拟/数字双显示的电测量仪表的数字显示部分。
本文件不适用于:
——只具有直接作用模拟指示的电测量仪表;
——便携式数字显示电测量仪表;
——另有国家标准(或行业标准)的特殊用途仪表。
注: 本文件对仪表的尺寸要求未作规定,仪表的尺寸要求见GB/T 1242—2000。
定价: 65元 / 折扣价: 56 元 加购物车
This part of GB/T 22264 specifies the terms and definitions, description, classification and compliance, reference conditions and intrinsic errors, nominal range of use and variations, requirements, packaging, storage and transport, information, general markings and symbols, and test rules of digital display insulation resistance meters.
This part is applicable to fixed digital insulation resistance meters, and is also applicable to the digital display part of dual analogue-digital display insulation resistance meters.
定价: 216元 / 折扣价: 184 元 加购物车
This part of GB/T 22264 specifies general test conditions and a series test methods for Intrinsic error tests, variation tests, electrical requirement tests, mechanical requirement tests, climate influence tests, electrical safety requirement tests, electromagnetic compatibility tests and mean time between failures test etc.
This part is applicable to the following fixed digital electric measuring instruments measuring electric parameters:
—ammeters and voltmeters;
—wattmeters and varmeters;
—frequency meters;
—power factor meters and phase meters;
—insulation resistance meters.
And multi-function instruments in combination of above any forms; it is also applicable to digital display part of dual analogue-digital display electric measuring instruments.
定价: 504元 / 折扣价: 429 元 加购物车
This part is applicable to fixed digital ammeter and voltmeter, and also applicable to the digital display part of dual analogue-digital display ammeters and voltmeters.
This part is not applicable to:
—direct acting indicating analogue ammeters and voltmeters;
—portable digital display ammeters and voltmeters;
—special purpose instruments which are covered by their own national standards.
定价: 216元 / 折扣价: 184 元 加购物车