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GB/T 41629.1-2022 English PDF

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GB/T 41629.1-2022: Long AC submarine cables with cross-linked polyethylene insulation and their accessories for rated voltage of 500 kV(Um=550 kV) - Part 1: Test methods and requirements
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GB/T 41629.1-2022English529 Add to Cart 5 days [Need to translate] Long AC submarine cables with cross-linked polyethylene insulation and their accessories for rated voltage of 500 kV(Um=550 kV) - Part 1: Test methods and requirements Valid GB/T 41629.1-2022

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Basic data

Standard ID GB/T 41629.1-2022 (GB/T41629.1-2022)
Description (Translated English) Long AC submarine cables with cross-linked polyethylene insulation and their accessories for rated voltage of 500 kV(Um=550 kV) - Part 1: Test methods and requirements
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard K13
Word Count Estimation 28,265
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GB/T 41629.1-2022: Long AC submarine cables with cross-linked polyethylene insulation and their accessories for rated voltage of 500 kV(Um=550 kV) - Part 1: Test methods and requirements


---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.
Long AC submarine cables with cross-linked polyethylene insulation and their accessories for rated voltage of 500 kV(Um=550 kV) - Part 1.Test methods and requirements ICS 29.060.20 CCSK13 National Standards of People's Republic of China Rated voltage 500kV (Um=550kV) cross-linking Polyethylene insulated long-length AC submarine cables and accessories Part 1.Test methods and requirements Published on 2022-07-11 2023-02-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration directory Preface I Introduction II 1 Scope 1 2 Normative references 1 3 Terms and Definitions 2 4 Test conditions 2 5 Test Category 3 6 Routine tests and requirements 4 7 Sampling tests and requirements 6 8 Type tests and requirements 10 9 Prequalification tests and requirements 17 10 Prequalification Extended Tests and Requirements 19 11 Electrical test after installation 20 Appendix A (normative) semiconducting shield resistivity measurement method 21 Appendix B (normative) Microvoids, impurities in insulating layer, and microvoids and protrusions at the interface between semiconducting shielding layer and insulating layer 23 Figure A.1 Volume resistivity measurement of conductor shielding 22 Figure A.2 Volume resistivity measurement of insulating shields 22 Table 1 Test voltage 3 Table 2 Thermal extension of cable XLPE mixture 8 Table 3 Mechanical property requirements of cable insulation compound (XLPE) (before and after aging) 15 Table 4 Mechanical properties test requirements for cable sheath mixture (ST7) 16

foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" drafted. This document is GB/T 41629 "rated voltage 500kV (Um=550kV) XLPE insulated long-length AC submarine cables and accessories Part 1.GB/T 41629 has released the following parts. --- Part 1.Test methods and requirements; --- Part 2.Large-length AC submarine cables; --- Part 3.Submarine cable accessories. Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by China Electrical Equipment Industry Association. This document is under the jurisdiction of the National Standardization Technical Committee of Wires and Cables (SAC/TC213). This document is drafted by. Shanghai Electric Cable Research Institute Co., Ltd., State Grid Zhejiang Electric Power Co., Ltd. Electric Power Research Institute, China Power Scientific Research Institute Co., Ltd., Shanghai State Cable Testing Co., Ltd., Jiangsu Hengtong High Voltage Submarine Cable Co., Ltd., Ningbo Dongfang Cable Co., Ltd. Co., Ltd., Zhongtian Technology Submarine Cable Co., Ltd., Qingdao Han Cable Co., Ltd., AVIC Baosheng Offshore Engineering Cable Co., Ltd., Futong Living Electric Submarine Cable Co., Ltd. The main drafters of this document. Sun Jiansheng, Wang Shaohua, Zhao Jiankang, Fan Yujun, Pan Wenlin, Yu Guojun, Xie Shuhong, Duan Weixi, Liu Xinghong, Zhou Houqiang, Xu Xiaofeng, Xia Junfeng, Hu Liexiang, Li Te, Li Chuang, Zhu Tao, Zhang Zhenpeng, Xu Mingzhong.

Introduction

Submarine cables are widely used in offshore wind power transmission, island power supply, and offshore platform power supply and distribution. Compared with onshore cables, submarine power The cable has the characteristics of complex product structure, high protection requirements, and special grounding methods. GB/T 41629 is rated voltage 500kV submarine cable Product standards for submarine cables and accessory systems, including the naming rules, test methods, technical requirements, etc. of submarine cables and accessory systems, consisting of the following 3 composed of parts. --- Part 1.Test methods and requirements. The purpose is to unify the test method of rated voltage 500kV submarine cable and accessory system and requirements. --- Part 2.Large-length AC submarine cables. The purpose is to unify the structural parameters and basic parameters of the rated voltage 500kV submarine cable. performance requirements. --- Part 3.Submarine cable accessories. The purpose is to unify the structural parameters and basics of the rated voltage 500kV submarine cable accessories can request. Rated voltage 500kV (Um=550kV) cross-linking Polyethylene insulated long-length AC submarine cables and accessories Part 1.Test methods and requirements

1 Scope

This document specifies the routine of XLPE insulated long-length AC submarine cables and accessories with a rated voltage of 500kV (Um=550kV). Test methods and requirements for test, sampling test, type test, prequalification test, prequalification extension test and post-installation electrical test. This document applies to 500kV XLPE insulated AC submarine cables (including optical fiber composite) and factory joints (soft joints), repairs Testing of AC submarine cable accessories such as joints, transition joints and terminations between submarine cables and onshore cables. This document does not apply to the testing of dynamic cables for special applications such as offshore floating platforms.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document. GB/T 2951.11-2008 General test methods for insulating and sheathing materials of electrical and optical cables - Part 11.General test methods Thickness and Outline Dimensions Measurement Mechanical Properties Test GB/T 2951.12-2008 General test methods for insulating and sheathing materials of electrical and optical cables - Part 12.General test methods Heat aging test method GB/T 2951.21-2008 General test methods for insulating and sheathing materials for electrical and optical cables - Part 21.Specialized elastomeric mixtures Test method for ozone resistance test---thermal extension test---mineral oil immersion test GB/T 2951.31-2008 General test methods for insulating and sheathing materials of electrical and optical cables - Part 31.Polyvinyl chloride mixture Special test method High temperature pressure test---anti-cracking test GB/T 3048.12 Test methods for electrical properties of wires and cables - Part 12.Partial discharge test GB/T 3048.13 Test methods for electrical properties of wires and cables - Part 13.Impulse voltage test Conductor of GB/T 3956 cable GB/T 16927.1 High Voltage Test Technology Part 1.General Definitions and Test Requirements GB/T 22078.1 Rated voltage 500kV (Um=550kV) XLPE insulated power cable and its accessories Part 1. Test methods and requirements for XLPE insulated power cables and their accessories with rated voltage of 500kV (Um=550kV) GB/T 32346.1-2015 Rated voltage 220kV (Um=252kV) XLPE insulated long-length AC submarine cables and accessories Part 1.Test methods and requirements GB/T 41629.2-2022 Rated voltage 500kV (Um=550kV) XLPE insulated long-length AC submarine cables and accessories Part 2.Large length AC submarine cables GB/T 41629.3-2022 Rated voltage 500kV (Um=550kV) XLPE insulated long-length AC submarine cables and accessories Part 3.Submarine cable accessories JB/T 10181.11-2014 Cable Ampacity Calculation Part 11.Ampacity Formula (100% Load Factor) and Loss Calculation General provisions

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