GB/T 33655-2017 English PDF

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GB/T 33655-2017: Superconducting power devices -- General requirements for characteristic tests of current leads designed for powering superconducting devices
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Basic data

Standard ID: GB/T 33655-2017 (GB/T33655-2017)
Description (Translated English): Superconducting power devices -- General requirements for characteristic tests of current leads designed for powering superconducting devices
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: K31
Classification of International Standard: 29.120.99
Word Count Estimation: 24,250
Date of Issue: 2017-05-12
Date of Implementation: 2017-12-01
Quoted Standard: IEC 60050-815-2000; IEC 60071-1; IEC 60137
Adopted Standard: IEC 61788-14-2010, IDT
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the general requirements for the traditional current lead and superconducting current lead performance test of the superconducting device.

GB/T 33655-2017: Superconducting power devices -- General requirements for characteristic tests of current leads designed for powering superconducting devices

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Superconducting power devices - General requirements for characteristic tests of current demand designed for powering superconducting devices ICS 29.120.99 K31 National Standards of People's Republic of China Superconducting power supply device superconducting device supply current General requirements for lead characteristics testing (IEC 61788-14..2010Superconductivity-Part 14. Superconductingpower designedforpoweringsuperconductingdevices, IDT) 2017-05-12 released 2017-12-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released Directory Preface III Introduction IV 1 Scope 1 2 normative reference document 1 3 Terms and definitions 1 4 Principle 2 5 Characteristic test item 2 6 Characteristic Test Method 3 7 Report 8 8 Notice 8 Appendix A (informative) Supplementary note on Chapters 1 through 8 9 Appendix B (informative) Typical current lead 10 Appendix C (informative) Explanatory chart to help understand the test method Appendix D (informative) Test items and methods for high temperature superconducting components Reference 20

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard uses the translation method equivalent to IEC 61788-14..2010 "Superconductivity Part 14. Superconducting power supply device Superconducting device General requirements for the test of supply current characteristics of the supply current ". And the normative reference in this standard international documents are consistent with the relationship between China's documents are as follows. GB/T 13811-2003 Electrical terminology Superconductivity (eqvIEC 60050-815..2000) GB/T 311.1-2012 Insulation coordination Part 1. Definitions, principles and rules (IEC 60071-1..2006, MOD) Insulation bushing with AC voltage higher than 1000V (IEC 60137Ed.6.0, MOD) GB/T 4109-2008 This standard is under the jurisdiction of National Superconducting Standardization Technical Committee (SAC/TC265). The drafting of this standard. Institute of Electrical Engineering, Chinese Academy of Sciences, Tianjin University, North China Electric Power University, China Electric Power Research Institute, China Branch Institute of Plasma Physics. The main drafters of this standard. Wang Qiuliang, letter win, Wang Yin Shun, Qiu Ming, Bi Yanfang, Dai Yinming, Cui Chunyan, Cheng Junsheng.

Introduction

Current leads are currently used in superconducting devices such as MRI diagnostic instruments, NMR spectrometers, single crystal growth devices, superconducting magnetic Energy storage systems, particle accelerators (such as Tevatron, HERA, RHIC and LHC), nuclear fusion test equipment (such as ToreSupra, TRIAM, LHD, EAST, KSTAR, W7-X, JT-60SA and ITER, etc.) and the superconducting devices to be put into practical use Floating trains, superconducting current limiters, superconducting transformers) indispensable components. The main function of the current lead is to provide a high current for the superconducting device while minimizing its overall heat load, from room temperature to low temperature The heat of the environment and the current lead on the Joule heat. For this reason, the use of a high-temperature superconductor as a part of the current lead contributes to a significant reduction Its overall heat load. On the other hand, the current lead technology applied to the superconducting device depends on the specific requirements of each application, the manufacturer's experience The accumulation of surgery. Since the current lead is only used as a component of the device, it is difficult to determine its compatibility, the flexibility to use between different devices, Convenience and overall economy. Which will hinder the development of superconducting device technology and commercial applications, worthy of our attention. Thus, the definition of the current lead used for the superconducting device is clearly defined and standardized by a series of general rules to normalize its general characteristics Which will help to improve the current level of current lead. Superconducting power supply device superconducting device supply current General requirements for lead characteristics testing

1 Scope

This standard gives the superconducting device power supply traditional current lead and superconducting current lead characteristics of the general requirements of testing.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. IEC 60050-815..2000 International Electrotechnical Terms Superconductivity [InternationalElectrotechnicalVocabulary (IEV) -Part 815. Superconductivity] IEC 60071-1 Insulation coordination Part 1. Definitions, principles and rules (Insulationcoordination-Part 1. Defini- tions, principlesandrules) IEC 60137 Insulated bushing with AC voltage higher than 1000V (Insulatedbushingsforalternatingvoltagesabove 1000V)

3 terms and definitions

IEC 60050-815..2000 Definitions and the following terms and definitions apply to this document. 3.1 Current lead currentlead In the insulation conditions, the current into the device conductor, especially the current from the room temperature into the low temperature also have a cooling channel. [IEV815-06-47] 3.2 Conventional current lead normalconductingcurrentlead Traditional current lead Only the current conductors that make up the conductive part of the conventional conductor. 3.3 Superconducting current leads superconductingcurrentlead Current lead with superconducting part. Note. The superconducting current lead includes a conventional conductor portion from room temperature to an intermediate temperature, and a superconductor portion from an intermediate temperature to a low temperature environment. In this standard The superconducting portion is usually made of a high temperature superconductor. 3.4 Non-air-cooled current lead non-gascooledtypecurrentlead The current is cooled by conduction cooling. 3.5 Air-cooled current lead gas-coolingtypecurrentlead A current lead cooled with a cryogenic gas. NOTE. In some cases, air cooling is achieved by the flow of gas inside the lead and the way in which the gas is convected on its outer surface. ......

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