GB/T 33346-2025Busbar trunking systems (compact insulated busways) for wind power (English PDF)

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 for standardization documents" Drafting.

This document replaces GB/T 33346-2016 Wind Power Conductor Rail (Dense Busbar Duct) and is consistent with GB/T 33346-2016.

In addition to structural adjustments and editorial changes, the main technical changes are as follows.

— Changed the scope (Chapter 1, Chapter 1 of the 2016 edition);

— Changed the terms and definitions of wind power conductor rails (see 3.1, 3.1 of the 2016 edition);

— Deleted some terms and definitions (see 3.2 to 3.8 of the 2016 edition);

— Changed the normal use conditions (see 4.1, 4.1.1.1 to 4.1.1.3 of the 2016 edition);

— Added sea surface pollution level (see 4.1.2);

— Deleted the rated frequency requirements in the rated data (see 5.1.4 of the 2016 edition);

— Changed the requirements for insulating materials (see 6.2.3, 5.3.3 of the 2016 edition);

— Changed the dielectric performance requirements and dielectric performance verification methods (see 7.1, 8.4.7, 6.4.7 of the 2016 edition);

— Added corrosion resistance verification and insulation material performance verification (see 8.4.1, 8.4.2);

— Added fungus resistance test (see 8.4.12);

— Added other tests for offshore wind power bus duct (see 8.4.13);

— Added offshore wind power bus duct related tests (see Appendix A).

Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.

This document is proposed by the China Electrical Equipment Industry Association.

This document is under the jurisdiction of the National Technical Standardization Committee for Low-voltage Complete Switchgear and Control Equipment (SAC/TC266).

This document was drafted by: Tianjin Electric Science Research Institute Co., Ltd., Tianjin Tianchuan Electric Control Equipment Testing Co., Ltd., Zhenjiang Product Quality Inspection Co., Ltd.

Quality Supervision and Inspection Center, Jiangsu Hongqiang Electric Group Co., Ltd., Hangzhou Huahong Communication Equipment Co., Ltd., Shenglong Electric Group Co., Ltd., China Quality Certification Center Co., Ltd., Shanghai Youbang Electric (Group) Co., Ltd., Hunan Xianghe Group Cable Technology Co., Ltd.

Shenzhen Yuzhan Electric Co., Ltd., Guangzhou Radius Electric Co., Ltd., Guangdong Guling Electric Co., Ltd., Guangdong Baoshi Electric Co., Ltd.

Co., Ltd., Xilang Electric Industry Group Co., Ltd., Guangdong Cisco General Electric Technology Co., Ltd., Hebei Tianhua Electric Technology Co., Ltd., Hangbaosheng Electric Co., Ltd., Yangzhong Inspection and Testing Center (Jiangsu Province Power Distribution Equipment Quality Inspection and Testing Center), TBEA Yunji Electric Gas Co., Ltd., Fujian Senda Electric Co., Ltd., Jiangsu Huaqiang Electric Power Equipment Co., Ltd., Hongguang Electric Group Co., Ltd., Eaton Line (Jiangsu) Co., Ltd., Shandong Luneng Energy Electric Equipment Co., Ltd., Weiteng Electric Group Co., Ltd., Shenzhen Jinhuatian Electric Power Co., Ltd., Shanghai Rongqin Electric Group Co., Ltd., Jiangsu Shilin Electric Group Co., Ltd., Jiangsu Pinggao Taishida Electric Co., Ltd., Ningbo AUX Intelligent Technology Co., Ltd. and Qingdao Dongshan Group Busbar Intelligent Manufacturing Co., Ltd.

The main drafters of this document are: Zhang Lei, Wang Yang, Cui Weifeng, Dai Hongbing, Zhao Yanming, Lü Peihe, Xie Zhengxin, Zhang Guangyue, Di Meixian, Wang Guoliang, Wang Zhenwu, Zhang Hequan, Zheng Kaida, Zhu Henglin, Xu Zhaohui, Wu Pengtao, Lu Chuan, Zhai Shuzeng, Wang Shinian, Chen Hongxia, Zhang Yi, He Hongjun, Wei Jun, Chen Yingchao, Chen Weiwei, Wang Kuan, Yan Heng, Guo Qi, Zeng Xiaohua, Zhang Jie, Chen Daohua, Cheng Zhiwei, Wang Yanxin, and Huang Hongbin.

The previous versions of this document and the documents it replaces are as follows.

— First published in 2016 as GB/T 33346-2016;

— This is the first revision.

1 Scope

This document specifies the use conditions, interface characteristics, structural requirements, Performance requirements, test verification, routine inspection, nameplate and marking, packaging, transportation and storage methods, etc.

This document applies to wind turbine towers or wind turbine cabins with rated voltage AC not exceeding 1000V and frequency of 50Hz or 60Hz. Wind power bus duct.

2 Normative references

GB/T 2423.4

GB/T 2423.10

GB/T 2423.16

GB/T 2423.17

GB/T 4208

GB/T 7251.1-2023

GB/T 7251.6-2015

GB/T 13384-2008

3 Terms and Definitions

For this document, the terms and definitions defined in GB/T 7251.1-2023 and GB/T 7251.6-2015 and the following terms and definitions apply.

4 Conditions of Use