IEC 61156-4-1 AMD 1-1999 数字通信用对绞或星绞多芯对称电缆第4部分:垂直布线电缆第1节:空白详细规范修改1

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【英文标准名称】:Highfrequencyinductivecomponents-Non-electricalcharacteristicsandmeasuringmethods-Part1:Fixed,surfacemountedinductorforuseinelectronicandtelecommunicationequipment(IEC62025-1:2007);GermanversionEN62025-1:2007
【原文标准名称】:高频感应部件.非电气特征和测量方法.第1部分:电子和电信设备用固定式表面安装感应器
【标准号】:EN62025-1-2007
【标准状态】:现行
【国别】:
【发布日期】:2008-02
【实施或试行日期】:2008-02-01
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:元部件;名称与符号;尺寸;电气工程;电子工程;电子设备及元件;电子仪器;图形符号;高频;阻抗;电感;感应;信息技术;电磁元件;磁性器件;作标记;数学计算;测量;测量技术;计量学;额定值;共振频率;形状;表面安装设备;表面安装;表面安装装置;电信;测试
【英文主题词】:Components;Designations;Dimensions;Electricalengineering;Electronicengineering;Electronicequipmentandcomponents;Electronicinstruments;Graphicsymbols;Highfrequencies;Impedance;Inductance;Inductive;Informationtechnology;Magneticcomponents;Magneticdevices;Marking;Mathematicalcalculations;Measurement;Measuringtechniques;Metrology;Ratings;Resonantfrequency;Shape;SMD;Surfacemounting;Surfacemountingdevices;Telecommunications;Testing
【摘要】:
【中国标准分类号】:L86
【国际标准分类号】:17_220_20;29_100_10
【页数】:14P.;A4
【正文语种】:英语


Product Code:SAE J390
Title:Dual Dimensioning
Issuing Committee:Technical Standards Board
Scope:This document establishes a uniform method of combining inch-pound units and metric units of measure on the same engineering drawing. In this document 'metric units' means the International System of Units (abbreviated SI) as described in SAE J 916. Herein is guidance for converting from one system to the other while maintaining functional interchangeability.This document covers a dual dimensioning practice that provides both U.S. Customary inch-pound units and SI metric units for all dimensions on the field of drawing. The scope does not include the 'chart method'聴whereby drawings are dimensioned only in SI units聴with conversions to inch-pound units provided in chart form (usually computer generated) on the drawing. Further information on the chart method is found in SAE Handbook Supplement J1066, 'Recommended Guidelines for Company Metrication Programs in the Metalworking Industry.' The purpose of this document is to provide an authoritative guide for uniform application of dual dimensioning on engineering drawings. SAE recognizes that a decision regarding preparation of engineering drawings during metric transition is an individual judgement based on needs and circumstances. While providing this information, SAE takes no official position concerning dual dimensioning. Issuance of this publication should not be construed as advocacy.