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GB/T 26218.3-2011: Selection and dimensioning of high-voltage insulators intended for use in polluted conditions -- Part 3: Composite insulators for a.c. systems
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Selection and dimensioning of high-voltage insulators intended for use in polluted conditions -- Part 3: Composite insulators for a.c. systems
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GB/T 26218.3-2011
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Basic data | Standard ID | GB/T 26218.3-2011 (GB/T26218.3-2011) | | Description (Translated English) | Selection and dimensioning of high-voltage insulators intended for use in polluted conditions -- Part 3: Composite insulators for a.c. systems | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | K48 | | Classification of International Standard | 29.080.10 | | Word Count Estimation | 19,151 | | Date of Issue | 2011-12-30 | | Date of Implementation | 2012-05-01 | | Quoted Standard | GB/T 2900.8-2009; GB/T 24622-2009; GB/T 26218.1-2010 | | Adopted Standard | IECTS 60815-3-2008, MOD | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 22 of 2011 | | 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 provides specific insulator substantially in some filthy environment characteristics determine guidelines and principles. This section applies to filthy conditions, high voltage AC system with composite insulators selection and sizing. The contents of this section CIGRE 33. 13 TF 01 [1] [2] file basis, I want to study in depth the performance of insulators under polluted conditions researchers can put the file as a useful supplement. | GB/T 26218.3-2011: Selection and dimensioning of high-voltage insulators intended for use in polluted conditions -- Part 3: Composite insulators for a.c. systems
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Selection and dimensioning of high-voltage insulators intended for use in polluted conditions Part 3. Composite insulators for acsystems
ICS 29.080.10
K48
National Standards of People's Republic of China
High voltage insulators under filthy conditions of use
Selection and sizing
Part 3. composite insulators for ac systems
Part 3. Compositeinsulatorsfora.c.systems
(IEC /T S60815-3.2008Selectionanddimensioningof
Part 3. Polymerinsulatorsfora.c.systems, MOD)
Issued on. 2012-05-01 2011-12-30 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Preface Ⅰ
1 Scope and purpose 1
2 Normative references 1
3 Terms, Definitions and Abbreviations 1
3.1 Terms and definitions
3.2 Abbreviations 1
4 Principle 2
5 material 2
General Information 5.1 silicone rubber umbrella cover material 2
5.2 creepage distance is reduced 2
6 site pollution degree determination 3
7 Reference Unified creepage distance is determined (RUSCD) 3
Generally recommended eight pairs of composite insulators umbrella 4
9 umbrella check parameters 5
9.1 Overview 5
9.2 Alternating umbrellas and umbrella extend 5
9.3 umbrella umbrella extended pitch ratio 6
9.4 Minimum distance between the umbrella 6
9.5 creepage distance and spacing 7
9.6 umbrella inclination 7
9.7 creepage factor 8
10 Reference Unified creepage distance (RUSCD) amendment 8
10.1 Fixed Reference Unified creepage distance (RUSCD) Calculation 8
10.2 altitude correction Ka 8
10.3 insulator diameter correction Kad 8
The minimum creepage distance of 11 finalized 9
12 experimental verification 9
Appendix A (informative) of this section with IEC /T S60815-3.2008 technical differences and their causes 10
Annex B (informative) contamination cause deterioration of composite insulators information 12
References 14
Figure 1 RUSCD relationship between the curve and the SPS grade 4
Figure 2 typical open umbrella 4
Figure 3 Typical alternately umbrella 5
Diagram 4 Kad and the average diameter and 8 icon
Figure B.1 operating region, and the degree of contamination and USCD relationship (insulator length unchanged) 13
Foreword
GB/T 26218 "under filthy conditions Insulators selection and sizing" is divided into five sections.
--- Part 1. Definitions, information and general principles;
--- Part 2. AC system with porcelain and glass insulators;
--- Part 3. composite insulators for ac systems;
--- Part 4. DC system with porcelain and glass insulators;
--- Part 5. DC system with composite insulators.
This section GB/T 26218 Part 3.
This section drafted in accordance with the rules of GB/T 1.1-2009 and GB/T 20000.2-2009 given.
This section uses redrafted Law Amendment uses IEC /T S60815-3.2008 under "filthy conditions and selection Insulators
Sizing Part 3. Polymer insulators for ac systems "(in English).
Given our outdoor insulators under filthy conditions of use are basically silicone rubber composite insulators as the umbrella cover, and epoxy resin,
EPDM and other materials as the number of insulators umbrella cover very few and the lack of operating experience, this part of IEC /T S60818-3.2008 name
Name and scope have been modified only for dimethyl siloxane based silicone rubber umbrella sets of silicone rubber composite insulators, and deleted
IEC /T S60815-3 in relation to non-silicone rubber insulators.
This part of IEC /T S60815-3.2008 technical differences exist compared to the terms of these differences has been involved through its outer margin
Vertical single line blank position (|) have been marked, the list given in Appendix A corresponding technical differences and their causes.
This section and IEC /T S60815-3. compared to 2008, reg number changes as follows.
--- 5.2.1 and 5.2.2 of the merger rewritten as 5.2;
--- The suspension of paragraph 10 of Chapter rewrite 10.1, the original title of a strip extended;
--- Number remaining clauses are identical.
Please note that some of the content of this document may involve patents. Release mechanism of the present document does not assume responsibility for the identification of these patents.
This part is proposed by the China Electrical Equipment Industrial Association.
The insulators in part by the National Standardization Technical Committee (SAC/TC80) centralized.
This section drafted by. China Electric Power Research Institute, Xi'an High Voltage Apparatus Research Institute Co., Ltd., State Grid Electric Power Research Institute,
National Insulator arrester Quality Supervision and Inspection Center, Tsinghua University, Chongqing University, China Southern Power Grid Company EHV company, State Grid Corporation,
China Power Engineering Consulting Group, East China Electric Power Design Institute, China Power Engineering Consulting Group, Central South Electric Power Design Institute, Dalian Insulator Group shares have
Ltd., Guangzhou McLean Power Co., Ltd. Xiangfan State Grid composite insulator, Nantong Shenma Power Technology Co.,
Secretary, Suzhou Cichang Limited.
The main drafters of this section. Fan Jianbin, Su Chih-yi, Yaojun Rui, Ying Yang Jian, Wei Peng, Liang Xi east PROCEEDINGS Yong, TRANSACTIONS OF THE ARMY
Zhao Hui, Wang Shaowu, Michael, and had even born, Rengui Qing, Ouyang Xu Dan, Hong-Jun Yang, Ma Bin, Zhou Lu.
High voltage insulators under filthy conditions of use
Selection and sizing
Part 3. composite insulators for ac systems
1 Scope and purpose
This section GB/T 26218 gives the specific characteristics of the insulator substantially in some filthy environment judging guidelines and principles.
This section applies to high voltage AC system under filthy conditions determined by the size and selection of composite insulators.
Of this section to CIGRE33.13TF01 [1] [2] as a base, we want in-depth study under filthy conditions insulator Performance Division
Research staff can put the file as a useful supplement.
This section does not involve the impact of snow and ice contamination insulator. Although CIGRE [3] which has been studied, but little information available, experience the difference
Do not larger.
The purpose of this section is.
--- Through on-site contamination degree (SPS) is determined with reference to a unified specific creepage distance (RUSCD);
--- Select the appropriate umbrella;
--- Unified reference creepage distance (RUSCD) for altitude changes, insulator shape, size, installation location correction.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 2900.8-2009 Electrotechnical terminology insulator (IEC 60050-471.2007, IDT)
GB/T 24622-2009 insulator surface wettability measurement guidelines (IEC /T S62073.2003, IDT)
GB/T 26218.1-2010 filthy conditions under high pressure insulator selection and sizing - Part 1. Definitions, information and general
Principles (IEC /T S60815-1.2008, MOD)
3 Terms, definitions and abbreviations
3.1 Terms and Definitions
GB/T 2900.8-2009 and GB/T 26218.1-2010 and as defined in the following terms and definitions apply to this document.
3.1.1
Reference Unified creepage distance (RUSCD) referenceunifiedspecificcreepagedistance; RUSCD
According to the part size, shape, location, etc. installation unified creepage distance initial value before correction, usually in mm/kV representation.
3.2 Acronyms
The following abbreviations apply to this document.
Creepage factor CF creepagefactor
ESDD equivalentsaltdepositdensity ESDD
HTM hydrophobicitytransfermaterial hydrophobic material migration
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