17.220.01 电学、磁学综合 标准查询与下载

DIN IEC/TS 60865-2:2013 短路电流.效应计算.第2部分:计算举例(IEC 73/163/CD-2012)

Short-circuit currents - Calculation of effects - Part 2: Examples of calculation (IEC 73/163/CD:2012)

GA/T 1064-2013 X射线源老化测试仪校准规范

本标准规定了X射线源老化测试仪的计量性能要求、通用技术要求、校准条件、校准项目和校准方法、校准结果表达及复校时间间隔。本标准适用于X射线源老化测试仪的首次校准、后续校准和使用中检验。

Calibration specifications for X-ray generator aging testers

GA/T 1063-2013 感应加热设备计量校准规范

本标准规定了感应加热设备的计量性能要求、通用技术要求、校准条件、校准项目和校准方法、校准结果表达及复校时间间隔。本标准适用于感应加热设备的首次校准、后续校准及使用中检验。

Calibration specifications for induction heating equipment

GA/T 1066-2013 居民身份证阅读器校准规范

本标准规定了居民身份证阅读器的术语、定义与缩略语,计量性能要求,功能要求,通用技术要求,校准条件,校准项目和校准方法,校准结果的处理及复校时间间隔。本标准适用于作为计量器具使用的居民身份证阅读器的首次校准、后续校准和使用中检验。

Calibration specifications for readers of the Resident Identity Card

IEEE 1309-2013 频率为9KHz～40GHz的电磁场传感器和探头(天线除外)的校准

IEEE Standard for Calibration of Electromagnetic Field Sensors and Probes (Excluding Antennas) from 9 kHz to 40 GHz

EN 60404-15:2012 磁性材料 第15部分：弱磁性材料相对磁导率的测定方法

IEC 60404-15:2012 specifies a solenoid method, a magnetic moment method, a magnetic balance method and a permeability meter method for the determination of the relative magnetic permeability of feebly magnetic materials (including austenitic stainless steel). The magnetic balance and permeability meter methods are both comparison methods calibrated using reference materials to determine the value of the relative magnetic permeability of the test specimen.

Magnetic materials - Part 15: Methods for the determination of the relative magnetic permeability of feebly magnetic materials

DIN EN 60865-1:2012 短路电流. 效应的计算. 第1部分:定义和计算方法 (IEC 60865-1-2011); 德文版本EN 60865-1-2012

Short-circuit currents - Calculation of effects - Part 1: Definitions and calculation methods (IEC 60865-1:2011); German version EN 60865-1:2012

DS/EN 60865-1:2012 短路电流 影响的计算 第1部分：定义和计算方法

IEC 60865-1:2011 is applicable to the mechanical and thermal effects of short-circuit currents. It contains procedures for the calculation of: the electromagnetic effect on rigid conductors and flexible conductors, the thermal effect on bare conductors. F

Short-circuit currents - Calculation of effects - Part 1: Definitions and calculation methods

BS EN 60865-1:2012 短路电流.效应计算.定义和计算方法

Short-circuit currents. Calculation of effects. Definitions and calculation methods

EN 60865-1:2012 短路电流 影响的计算 第1部分：定义和计算方法

IEC 60865-1:2011 is applicable to the mechanical and thermal effects of short-circuit currents. It contains procedures for the calculation of: the electromagnetic effect on rigid conductors and flexible conductors, the thermal effect on bare conductors. For cables and insulated conductors, reference is made, for example, to IEC 60949 and IEC 60986. For the electromagnetic and thermal effects in d.c. auxiliary installations of power plants and substations reference is made to IEC 61660-2. Only a.c. systems are dealt with in this standard. This third edition cancels and replaces the second edition published in 1993 and constitutes a technical revision. The main changes with respect to the previous edition are: - The determinations for automatic reclosure together with rigid conductors have been revised. - The influence of mid-span droppers to the span has been included. For vertical cable-connection the displacement and the tensile force onto the lower fixing point may now be calculated. Additional recommendations for foundation loads due to tensile forces have been added. The subclause for determination of the thermal equivalent short-circuits current has been deleted (it is now part of IEC 60909-0). The regulations for thermal effects of electrical equipment have been deleted. The standard has been reorganized and some of the symbols have been changed to follow the conceptual characteristic of international standards.

Short-circuit currents - Calculation of effects - Part 1: Definitions and calculation methods

GOST R 53734.4.9-2012 静电. 第4.9部分. 特定应用的标准试验方法. 服装

Electrostatics. Part 4.9. Standard test methods for specific applications. Garments

KS C IEC TR 62476-2011(2016) 关于电子电气产品中物质使用限制的产品评估指导

Guidance for evaluation of products with respect to substance-use restrictions in electrical and electronic products

KS C IEC TR 62476-2011(2021) 关于电气和电子产品中物质使用限制的产品评估指南

Guidance for evaluation of products with respect to substance-use restrictions in electrical and electronic products

ASTM D7278-11 预测分析仪采样系统滞后时间的标准指南

The analyzer sample system lag time estimated by this guide can be used in conjunction with the analyzer output to aid in optimizing control of blender facilities or process units. The lag time can be used in the tuning of control programs to set the proper optimization frequency. The application of this guide is not for the design of a sample system but to estimate the performance of existing sample systems. The principles listed in this guide are there to help understand design concepts and allow the application of this guide for its intended scope. Additional detailed information can be found in the references provided in the section entitled Additional Reading Material.1.1 This guide covers the application of routine calculations to estimate sample system lag time, in seconds, for gas, liquid, and mixed phase systems.1.2 This guide considers the sources of lag time from the process sample tap, tap conditioning, sample transport, pre-analysis conditioning and analysis.1.3 Lag times are estimated based on a prediction of flow characteristics, turbulent, nonturbulent, or laminar, and the corresponding purge requirements.1.4 Mixed phase systems prevent reliable representative sampling so system lag times should not be used to predict sample representation of the stream.This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Standard Guide for Prediction of Analyzer Sample System Lag Times

DS/EN 60909-3:2010 三相交流系统中的短路电流 第3部分：两个独立的同时线对地短路期间的电流和流过大地的部分短路电流

IEC 60909-3:2009 specifies procedures for calculation of the prospective short-circuit currents with an unbalanced short circuit in high-voltage three-phase a.c. systems operating at nominal frequency 50 Hz or 60 Hz, i. e.: - currents during two separate simultaneous line-to-earth short circuits in isolated neutral or resonant earthed neutral systems; - partial short-circuit currents flowing through earth in case of single line-to-earth short circuit in solidly earthed or low-impedance earthed neutral systems. The currents calculated by these procedures are used when determining induced voltages or touch or step voltages and rise of earth potential at a sta

Short-circuit currents in three-phase a.c systems - Part 3: Currents during two separate simultaneous line-to-earth short-circuits and partial short-circuit currents flowing through earth

ASTM D4470-97(2010) 静电标准测试方法

1.1 This test method covers the generation of electrostatic charge, the measurement of this charge and its associated electric field, and the test conditions which must be controlled in order to obtain reproducible results. This test method is applicable to both solids and liquids. This test method is not applicable to gases, since a transfer of a gas with no solid impurities in it does not generate an electrostatic charge. This test method also does not cover the beneficial uses of static electrification, its associated problems or hazards, or the elimination or reduction of unwanted electrostatic charge.2 1.2 The values stated in SI units are to be regarded as the standard. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Static Electrification

DIN EN 60909-3:2010 三相交流系统的短路电流.第3部分:两个对地短路电流和部分短路电流分别同时流入大地时的电流(IEC 60909-3-2009).德文版本EN 60909-3-2010

Short-circuit currents in three-phase a.c. systems - Part 3: Currents during two separate simultaneous line-to-earth short-circuits and partial short-circuit currents flowing through earth (IEC 60909-3:2009); German version EN 60909-3:2010

BS PD CLC/TR 50484:2009 屏蔽室操作建议

This Technical Report applies to shielded enclosures used for EMC testing which are to be validated according to the EN 50147 series of standards and the corresponding international standards. The object of this report is to give guidance to the selection of the shielding materials and components. The frequency range for this document is 10 kHz to 40 GHz.

Recommendations for shielded enclosures

DIN EN 60059:2010 IEC标准电流额定值

This standard specifies standard current ratings for electrical devices, apparatus, instruments and equipment. This standard does not apply to current ratings of components and parts used within electrical devices or items of equipment.

IEC standard current ratings (IEC 60059:1999 + A1:2009); German version EN 60059:1999 + A1:2009

NF C00-232/A1*NF EN 60059/A1:2009 IEC标准额定电流

IEC standard current ratings.