SN/T 4125-2015 English PDF

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SN/T 4125-2015: Technical requirements for the inspection of import and export of high voltage apparatus.High voltage insulators of porcelain
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Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 4125-2015	689	Add to Cart	5 days	Technical requirements for the inspection of import and export of high voltage apparatus.High voltage insulators of porcelain	Valid

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Basic data

Standard ID: SN/T 4125-2015 (SN/T4125-2015)
Description (Translated English): Technical requirements for the inspection of import and export of high voltage apparatus.High voltage insulators of porcelain
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: K48
Word Count Estimation: 30,350
Date of Issue: 2015-02-09
Date of Implementation: 2015-09-01
Quoted Standard: GB/T 775.1; GB/T 2900.8; GB/T 25318; JB/T 8177
Regulation (derived from): State-Quality-Inspection-Accreditation [2015] 59
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies the "import and export high-voltage electrical inspection techniques requiring high-voltage porcelain insulators, " Rules for sampling sampling inspection, test items, test methods and guidelines for determining eligibility. This standard applies to nominal voltage greater than 1 000 V overhead power lines and power plants, electrical porcelain insulators or insulating member sampling. This standard applies to high-voltage porcelain insulators products and their HS Code (test only applies to its porcelain insulator portion) Appendix A. Part of the national high-voltage porcelain insulators product testing and technical requirements of the project, see Appendix B. The standard technical requirements reg reg number corresponding to the standard control number See Appendix C. This standard does not apply to a nominal voltage above 1 000 V insulation sleeve sampling.

SN/T 4125-2015: Technical requirements for the inspection of import and export of high voltage apparatus.High voltage insulators of porcelain

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Technical requirements for the inspection of import and export of high voltage apparatus.High voltage insulators of porcelain People's Republic of China Entry-Exit Inspection and Quarantine Industry Standard Import and export high-voltage electrical inspection technical requirements High voltage porcelain insulator Released on.2015-02-09 2015-09-01 implementation People's Republic The General Administration of Quality Supervision, Inspection and Quarantine issued

Content

Foreword III Introduction IV 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Technical requirements 2 5 Sampling and test items 8 6 Test method 10 7 Qualification judgment 13 Appendix A (Normative Appendix) High voltage porcelain insulator products and HS code 14 applicable to this standard Appendix B (informative) Test items and technical requirements for high voltage porcelain insulator products in some countries 15 Appendix C (informative) The technical requirements of this standard are compared with the corresponding standard chapter number 22 Reference 24 Figure 1 Wall thickness tolerance deviation diagram 3 Table 1 Wall thickness tolerance 3 Table 2 Porcelain insulator grinding surface roughness requirements 4 Table 3 Line porcelain insulators and power station, electrical porcelain insulator temperature cycling test cold water bath temperature difference requirements 5 Table 4 Hollow porcelain insulator temperature cycle test cold water bath temperature difference requirement 5 Table 5 Other porcelain insulator temperature cycle test cold water bath temperature difference requirement 6 Table 6 Wall thickness power frequency breakdown voltage 7 Table 7 Quality and thickness of zinc layer per unit area 7 Table 8 Minimum thickness and range of zinc layer 7 Table 9 Locking system operating load requirements 8 Table 10 Sampling Rules for Sampling Test of Porcelain Insulators 8 Table 11 Sampling test items and test sequence of line porcelain insulators 9 Table 12 Sampling test items and test sequence of power station and electrical porcelain insulators 9 Table A.1 Applicable high voltage porcelain insulator products and HS code (only for inspection of porcelain insulator parts) 14 Table B.1 ANSI C29.1-1988 (R2002) Electrical Insulator Test Method 15 Table B.2 ANSI C29.2 Wet Formed Porcelain and Tempered Glass Suspension Insulators 15 Table B.3 ANSI C29.6 Wet Formed Porcelain Insulator High Voltage Pin 16 Table B.4 ANSI C29.7 Wet Formed Porcelain Insulator High Voltage Line Column 16 Table B.5 Test method for JISC3801 insulators 17 Table B.6 JISC3812 Line Post Insulator 17 Table B.7 JISC3816 Rod Suspension Insulator 18 Table B.8 JISC3810 Suspension Insulators and Salt-Stained Suspension Insulators 18 Table B.9 JISC3824 high pressure porcelain sleeve 19 Table B.10 Porcelain and glass insulators for AS1137.1 overhead power lines (AC voltages above 1000V) 19 Table B.11 AS1137.4 Porcelain Tension Insulator 20 Table B.12 AS1137.3 Indoor and outdoor porcelain and glass power station post insulators (AC voltage higher than 1000V) 20 Table B.13 Porcelain or glass hollow insulators for electrical equipment AS1372 voltage higher than 1000V 21 Table C.1 The technical requirements of this standard are compared with the corresponding standard chapter number 22

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. Please note that some of the contents of this document may involve patents. The issuing organization of this document is not responsible for identifying these patents. This standard is proposed and managed by the National Certification and Accreditation Administration. This standard was drafted. Hunan Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China, Liaoning Entry-Exit Inspection and Quarantine Bureau, Fujian Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China, Shaanxi Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China, Fuling Huaxin Electric Porcelain Branch Technology Co., Ltd., Liling Yangdong Electric Porcelain Electric Co., Ltd., National Insulator Arrestor Quality Supervision and Inspection Center, Fushun Electric Porcelain Manufacturing Ltd., Fushun Gaoke Electric Porcelain Electric Manufacturing Co., Ltd., Shengzhou Shenyun Machinery Co., Ltd. The main drafters of this standard. Chen Zaihui, Wu Junmin, Wang Peng, Yi Zhengyu, Lin Xiaomei, Yang Xuefeng, Dai Jianping, Zhou Bo, Liu Zhenghua, Yao Guanqing, Wu Yang, Li Zhiqun, Wei Peng, Tang Xiaozhong, Wang Limin, Lian Yuntao.

Introduction

At present, it involves national standards for import and export of porcelain insulator products, machinery industry standards, power industry standards, international electrical organization standards and several Foreign standards of major countries, focusing on type testing and testing one by one, some standards involve sampling inspection. As a It is necessary for the settlement inspection, inspection and quarantine departments of both parties to supervise the quality of imported and exported porcelain insulators, and the batch products are organized by the production enterprises before leaving the factory. For factory inspection, it is necessary to formulate technical requirements for porcelain insulators with wide applicability based on sampling inspection. Import and export high-voltage porcelain insulator inspection technical requirements standards, is an important component of the import and export high-voltage electrical products inspection industry standard system It is one of the important basis for the implementation of factory inspection, delivery inspection and quality supervision of import and export high-voltage porcelain insulator products. Inspection of high-voltage porcelain insulators for import and export, all types of products related to high-voltage porcelain insulators, scope of inspection technical requirements More extensive, this standard is based on the national standards of high-voltage porcelain insulators, international electrical organization standards, etc., comprehensive consideration of high-voltage porcelain insulators The technical requirements for sampling tests in the basic standards, line-type insulator standards, and power station electrical insulator standards are generally applicable to Technical requirements, sampling rules, test items, test methods and qualification criteria for all types of high-voltage porcelain insulator products are more suitable for entry and exit. Inspection of high voltage porcelain insulators. When using this standard, different tests may be adopted according to different insulator categories, special requirements for quality supervision, and trade agreement. Test methods and technical requirements. Import and export high-voltage electrical inspection technical requirements High voltage porcelain insulator

1 Scope

This standard stipulates the sampling rules, test items and tests for the sampling inspection of "High-voltage porcelain insulators for the inspection of high-voltage electrical appliances for import and export". Test method and qualification criteria. This standard is applicable to the sampling inspection of overhead power lines and power stations, electrical porcelain insulators or insulating parts with a nominal voltage higher than 1000V. The high-voltage porcelain insulator products and their HS codes applicable to this standard (only applicable to the inspection of their porcelain insulator parts) are shown in Appendix A. See Appendix B for testing items and technical requirements for high voltage porcelain insulator products in some countries. Refer to Appendix C for the comparison of the technical requirements of this standard with the corresponding standard chapter number. This standard does not apply to the sampling inspection of insulating sleeves with a nominal voltage higher than 1000V.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 775.1 Test methods for insulators - Part 1. General test methods GB/T 2900.8 Electrotechnical terminology insulator (IEC 60050-471.2007, IDT) GB/T 25318 Insulator string components Ball and socket connection locking pin size and test (IEC 60372.1984, IEC 60372/AM2. 2003, MOD) JB/T 8177 Insulator metal accessories hot-dip galvanized layer general technical conditions

3 Terms and definitions

The following terms and definitions as defined in GB/T 2900.8 apply to this document. 3.1 Sampling test sampletests According to the sampling rules and the specified test items, the qualified products submitted by the manufacturer for inspection and acceptance shall be subject to the qualification test. Inspection carried out. 3.2 Specified characteristic sepecifiedcharacteristic The value of the voltage or mechanical load specified in the relevant product standard, or any other characteristic value and any other agreement between the supplier and the purchaser Characteristic value. 3.3 Grinding surface roughness roughnessofgroundsurfaces The surface of the end surface of the polished ceramic has a small pitch and a small peak-to-valley unevenness, usually with a reference line arithmetic mean roughness (Ra) to assess. ......

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