29.050 导体材料 标准查询与下载

KS C IEC 61788-18-2020 超导性 - 第18部分:机械性能测量 - Ag-和/或Ag合金护套Bi-2223和Bi-2212复合超导体的室温拉伸试验

Superconductivity — Part 18: Mechanical properties measurement — Room temperature tensile test of Ag-and/or Ag alloy-sheathed Bi-2223 and Bi-2212 composite superconductors

KS C IEC 61788-18:2020 超导性 - 第18部分:机械性能测量 - Ag-和/或Ag合金护套Bi-2223和Bi-2212复合超导体的室温拉伸试验

Superconductivity — Part 18: Mechanical properties measurement — Room temperature tensile test of Ag-and/or Ag alloy-sheathed Bi-2223 and Bi-2212 composite superconductors

KS C IEC 61788-14-2020 超导性 - 第14部分:超导功率器件 - 用于为超导器件供电的电流引线的特性测试的一般要求

Superconductivity — Part 14: Superconducting power devices —General requirements for characteristic tests of current leads designed for powering superconducting devices

PN-EN IEC 61788-7-2020-12 E 超导性 第7部分：电子特性测量 微波频率下高温超导体的表面电阻（IEC 61788-7:2020）

Superconductivity -- Part 7: Electronic characteristic measurements -- Surface resistance of high-temperature superconductors at microwave frequencies (IEC 61788-7:2020)

PN-EN IEC 61788-4-2020-12 E 超导性 第4部分：残余电阻比测量 Nb-Ti和Nb3Sn复合超导体的残余电阻比（IEC 61788-4:2020）

Superconductivity -- Part 4: Residual resistance ratio measurement -- Residual resistance ratio of Nb-Ti and Nb3Sn composite superconductors (IEC 61788-4:2020)

KS C 6111-1-2020 超导性 临界温度测量 使用SQUID磁力计通过磁法测量Nb-Ti、Nb3Sn和Bi系复合超导体的临界温度

Superconductivity－Critical temperature measurement－Critical temperature of Nb-Ti, Nb3Sn, and Bi-system compositesuperconductors by a magnetic method using a SQUID magnetometer

KS C 6111-2-2020 超导性 临界温度测量 使用交流电感受器通过磁法测量Nb-Ti、Nb3Sn和Bi系复合超导体的临界温度

Superconductivity－Critical temperature measurement－Critical temperature of Nb-Ti, Nb3Sn, and Bi-system composite superconductors by a magnetic method using an ac susceptometer

YB/T 4820-2020 矿热炉整体筑炉用冷捣糊

Cold pounding paste for integral construction of submerged arc furnace

YB/T 4823-2020 石墨电极接头用煤系针状焦

Coal-based needle coke for graphite electrode joints

YB/T 4822-2020 煤系针状焦中间相焦

Coal-based needle coke mesophase coke

YB/T 4821-2020 光纤拉丝用超纯石墨

Ultra-pure graphite for optical fiber drawing

ASTM B193-20 电导体材料电阻率的标准测试方法

1.1 This test method covers the determination of the electrical resistivity of metallic electrical conductor material. It provides for an accuracy of 60.30 % on test specimens having a resistance of 0.00001 Ω (10 µΩ) or more. Weight resistivity accuracy may be adversely affected by possible inaccuracies in the assumed density of the conductor. 1.2 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard Test Method for Resistivity of Electrical Conductor Materials

T/CEC 397-2020 敞开式隔离开关电触头镀银层技术条件

本文件规定了敞开式隔离开关电触头镀银层及银石墨复合镀层的技术要求、检验方法、检验规则、包装、运输和储存。 本文件适用于户外敞开式隔离开关电触头镀银层及银石墨复合镀层的验证试验、检验和验收。户内敞开式隔离开关电触头镀银层及银石墨复合镀层可参照执行。

Specifications for silver plating of electrical contacts of open disconnector switches

ASTM B896-10(2020) 评估导体材料连接性的标准试验方法

1.1 These test methods define procedures for the relative characterization of conductor material connectability on the basis of measurements of parameters important to the design and performance of electrical contacts and connections to and with such conductors for both power and signal applications. 1.2 The parameters measured are contact resistance as a function of contact force, fretting sensitivity, and compressive relaxation. 1.3 Provision is made for measurement of the connectability parameters at elevated temperature, or corrosive ambient, or both, as may be required for evaluation for particular applications. 1.4 These test methods, using standardized specimen geometry and procedures, are applicable to conductor materials as employed in an electrical system and may be adapted for evaluation of connectability of materials in the form of actual connection system components. 1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.6 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 become familiar with all hazards including those identified in the appropriate Safety Data Sheet (SDS) for this product/material as provided by the manufacturer, to establish appropriate safety, health, and environmental practices, and determine the applicability of regulatory limitations prior to use. 1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard Test Methods for Evaluating Connectability Characteristics of Electrical Conductor Materials

IEC 61788-26:2020 超导性第26部分:临界电流测量RE-Ba-Cu-O复合超导体的直流临界电流

Superconductivity - Part 26: Critical current measurement - DC critical current of RE-Ba-Cu-O composite superconductors

ASTM E1606-20 用于电气目的的铜和铝重拉杆的电磁（涡流）检验标准实践

1.1 This practice covers the procedures that shall be followed in electromagnetic (eddy current) examination of copper and aluminum redraw rods for detecting discontinuities or imperfections of a severity likely to cause failure or markedly impair surface quality of the rod. These procedures are applicable for continuous lengths of redraw rod in diameters from 1⁄4 to 13⁄8 in. (6.4 to 35 mm) suitable for further fabrication into electrical conductors. 1.2 This practice covers redraw rod made from tough-pitch or oxygen-free coppers. It can also be used for other types of copper, such as fire-refined high conductivity rod. It is also appropriate for aluminum and other nonferrous alloys used for electrical purposes. 1.3 The procedures described in this practice are based on methods for making use of differential or absolute stationary encircling annular test coil systems. 1.4 This practice does not establish acceptance criteria. Acceptance criteria must be established by the using parties. 1.5 Units—The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.6 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard Practice for Electromagnetic (Eddy Current) Examination of Copper and Aluminum Redraw Rod for Electrical Purposes

ASTM B187/B187M-20 铜、母线、棒和型材及通用棒、棒和型材的标准规范

1.1 This specification2 establishes the requirements for copper conductor bar, rod, and shapes for electrical (bus) applications and rod, bar, and shapes for general applications. 1.1.1 The products for electrical (bus) applications shall be made from the following coppers:3 Copper UNS No.3 Reference Designation C10100 OFE C10200 OF C10300 OFXLP C10400, C10500, C10700 OFS C10920, C10930, C10940 — C11000 ETP C11020 FRHC C11300, C11400, C11500, C11600 STP C12000 DLP 1.1.1.1 The product may be furnished from any copper listed unless otherwise specified in the contract or purchase order. 1.2 The product for general applications shall be made from any of the coppers in 1.1.1 or the following coppers: Copper UNS No.3 Reference Designation C10800 OFLP C12200 DHP 1.2.1 The product may be furnished from any copper listed above unless otherwise specified in the contract or purchase order. Other coppers may be used upon agreement between the supplier and purchaser. 1.3 Units—The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, SI units are shown in brackets. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. NOTE 1—Material for hot forging will be found in Specification B124/B124M. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard Specification for Copper, Bus Bar, Rod, and Shapes and General Purpose Rod, Bar, and Shapes

ASTM B49-20 电气用铜棒标准规格

1.1 This specification covers the requirements for rod in diameters from 1⁄4 in. to 13⁄8 in. (6.4 mm to 35 mm) produced from high conductivity coppers listed in Table 1, namely, electrolytic tough-pitch, oxygen-free, or fire-refined high conductivity coppers, and are suitable for further fabrication into electrical conductors. 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.3 The following safety hazards caveat pertains only to Section 13. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard Specification for Copper Rod for Electrical Purposes

IEC 61788-7:2020 RLV 超导性第7部分:电子特性测量微波频率下高温超导体的表面电阻

Superconductivity - Part 7: Electronic characteristic measurements - Surface resistance of high-temperature superconductors at microwave frequencies

IEC 61788-4:2020 超导性 - 第4部分:残余电阻率测量 - Nb-Ti和Nb3sn复合超导体的残余电阻比

Superconductivity - Part 4: Residual resistance ratio measurement - Residual resistance ratio of Nb-Ti and Nb3Sn composite superconductors