1、 ANSI/NEMA C29.10-1989 (R2002, R2012) American National Standard For Wet Process Porcelain Insulators Indoor Apparatus Type ANSI/NEMA C29.10-1989 (R2002, R2012) American National Standard For Wet Process Porcelain Insulators Indoor Apparatus Type Secretariat: National Electrical Manufacturers Associ
2、ation Approved: August 2012 Published: July 2013 American National Standards Institute, Inc. NOTICE AND DISCLAIMER The information in this publication was considered technically sound by the consensus of persons engaged in the development and approval of the document at the time it was developed. Co
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15、 will in no circumstances give an interpretation of any American National Standard. Moreover, no person shall have the right or authority to issue an interpretation of an American National Standard in the name of the American National Standards Institute. Requests for interpretations should be addre
16、ssed to the secretariat or sponsor whose name appears on the title page of this standard. Caution Notice: This American National Standard may be revised or withdrawn at any time. The procedures of the American National Standards Institute require that action be taken periodically to reaffirm, revise
17、, or withdraw this standard. Purchasers of American National Standards may receive current information on all standards by calling or writing the American National Standards Institute. Published by National Electrical Manufacturers Association 1300 North 17th Street, Rosslyn, VA 22209 Copyright 2013
18、 by National Electrical Manufacturers Association All rights reserved including translation into other languages, reserved under the Universal Copyright Convention, the Berne Convention for the Protection of Literary and Artistic Works, and the International and Pan American Copyright Conventions. N
19、o part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher. Printed in the United States of America. C29.10-1989 (R2002, R2012) Page i Copyright 2013 by National Electrical Manufacturers Association
20、FOREWORD (This Foreword is not part of American National Standard C29.10-1989 (R2002, R2012) In this standard are specified the material, dimensional, and performance requirements for indoor apparatus wet-process porcelain insulators used in electric power transmission and distribution. Included are
21、 requirements for testing thermal and mechanical strength, impulse and dew withstand values, flashover value, porosity, and, when galvanized hardware is used, coating thickness. This standard supersedes ANSI C37.31-1962 (R1976), which had been developed by the Accredited Standards Committee on Power
22、 Switchgear, C37, and approved as an American National Standard on April 17, 1962. Responsibility for this standard has been transferred to the Accredited Standards Committee on Insulators for Electric Power Lines, C29, by mutual agreement between both committees. The purpose of this revision and re
23、designation is to bring the standard up to date and in line with present-day requirements. Suggestions for improvement of this standard will be welcome. They should be sent to the National Electrical Manufacturers Association, 1300 North 17th Street, Rosslyn, VA 22209 This standard was processed and
24、 approved for submittal to ANSI by Accredited Standards Committee on Insulators for Electric Power Lines, C29. Committee approval of the standard does not necessarily imply that all committee members voted for approval. At the time it approved this standard, the ASC C-29 Committee had the following
25、members: Rob Christman, Chairman Steve Griffith, Secretary Organization Represented: Name of Representative: Edison Electric Institute B. Freimark R. Christman E. Cleckley M. Garrels W. Avery J. Varner (alt) R. Kluge (alt) G. Obenchain (alt) Institute of Electrical and Electronic Engineers T. Grisha
26、m J. Hildreth A. Jagtiani J. Kuffel A. Phillips E. Gnandt (alt) National Electrical Manufacturers Association P. Maloney A. Baker R. A. Bernstorf G. Powell G. A. Stewart E. Kress (alt) Z. Lodi (alt) E. Niedospial (alt) A. Schwalm (alt) C29.10-1989 (R2002, R2012) Page ii Copyright 2013 by National El
27、ectrical Manufacturers Association Tennessee Valley Authority J. Nelson Western Area Power Administration R. Clark C29.10-1989 (R2002, R2012) Page iii Copyright 2013 by National Electrical Manufacturers Association TABLE OF CONTENTS Page FOREWORD i 1 SCOPE 1 2 REFERENCED STANDARDS . 1 2.1 American N
28、ational Standards 1 2.2 Other Standard . 1 3 DEFINITIONS 1 4 GENERAL 1 5 MATERIAL . 1 6 DIMENSIONS AND CHARACTERISTICS 2 7 MARKING 2 8 SAMPLING, INSPECTION, AND TESTS 2 8.1 General . 2 8.2 Design Tests 2 8.2.1 Tensile Strength . 2 8.2.2 Impulse Withstand . 2 8.2.3 Compression Strength . 2 8.2.4 Ther
29、mal Shock . 2 8.2.5 Torsional Strength 3 8.2.6 Low-Frequency Dew Withstand . 3 8.3 Quality Conformance Tests . 3 8.3.1 Visual and Dimensional Tests 3 8.3.2 Porosity Test 3 8.3.3 Galvanizing Test. 3 8.3.4 Cantilever-Strength 3 8.4 Routine Test for Flashover 3 TABLES 1 Metric Equivalents . 4 2 Electri
30、cal Characteristics 4 3 Mechanical Characteristics of Strength Class A-10 . 4 4 Mechanical Characteristics of Strength Classes A-20 and B-20 . 5 5 Mechanical Characteristics of Strength Classes A-30 and B-30 . 5 6 Mechanical Characteristics of Strength Class B-40 . 5 7 Mechanical Characteristics of
31、Strength Class B-50 . 5 FIGURES 1 Class “A” Construction . 6 2 Class “B” Construction . 7 2 Class “B” Construction (continued) 8 C29.10-1989 (R2002, R2012) Page iv Copyright 2013 by National Electrical Manufacturers Association APPENDIX . 9 C29.10-1989 (R2002, R2012) Page 1 Copyright 2013 by Nationa
32、l Electrical Manufacturers Association For Wet Process Porcelain InsulatorsIndoor Apparatus Type 1 SCOPE This standard covers high-voltage indoor-apparatus insulators made of wet-process porcelain and used in the transmission and distribution of electrical energy. 2 REFERENCED STANDARDS 2.1 American
33、 National Standard. This standard is intended to be used in conjunction with American National Standard for Electrical Power Insulators Test Methods, ANSI C29.1-1988 (R2012). When the referenced standard is superseded by a revision approved by the American National Standards Institute, Inc, the revi
34、sion shall apply. 2.2 Other Standard. This standard is also intended to be used in conjunction with the following standards: ASTM A 153-82 (1987), Specifications for Zinc Coating (Hot Dip) on Iron and Steel Hardware ASTM D 1535-80, Method for Specifying Color by the Munsell System 3 DEFINITIONS See
35、Section 2 of ANSI C29.1-1988 (R2012) for definitions of terms. 4 GENERAL 4.1 Insulators shall conform in all respects to the requirements of this standard. The text, figures, and tables supplement each other and shall be considered part of this standard. 4.2 Manufacturers drawings, if furnished, sha
36、ll show the outline of the insulators, together with all pertinent dimensions. Any variations in these dimensions due to manufacturing tolerances shall be indicated. 5 MATERIAL 5.1 The insulators shall be made of wet-process porcelain of good commercial grade. 5.2 The entire surface of the insulator
37、, with the exception of a firing surface, shall be glazed. The entire surface shall be relatively free from imperfections. Color is not a part of this standard. If gray is required, it shall be in accordance with ASTM D 1535-80, and conform to Munsell notation 5BG 7.0/0.4 with the following toleranc
38、es: (1) Hue: 12 (3G to 7B) (2) Value: 0.5 (3) Chroma: -0.2 to +0.6 5.3 Metal parts shall be made of a good commercial grade of malleable iron, ductile iron or steel, gray iron, zinc alloy, or aluminum alloy. Ferrous parts other than stainless steel, when galvanized, shall be galvanized in accordance
39、 with ASTM A 153-82 (1987). AMERICAN NATIONAL STANDARD ANSI/NEMA C29.10-1989 (R2002, R2012) C29.10-1989 (R2002, R2012) Page 2 Copyright 2013 by National Electrical Manufacturers Association 6 DIMENSIONS AND CHARACTERISTICS 6.1 Indoor insulators are classified according to construction: Class A Inser
40、t top and bottom (Figure 1) Class B Insert top, externally bonded base (Figure 2) The figures are type drawings. Dimensions and characteristics shall be in accordance with the tables. Top and bottom holes shall be as shown in the figures. 6.2 Shell diameters shall not exceed 103 percent of the dimen
41、sions shown in the figures, to ensure physical clearances in assembled apparatus. Minimum diameters are limited by the other specified characteristics. 6.3 All dimensions and other numerical values are given in customary English units. Except as otherwise stated, the metric equivalents shall be as s
42、hown in Table 1. 7 MARKING Each insulator shall bear a symbol identifying the manufacturer and giving the year of manufacture. The marking shall be legible and durable. 8 SAMPLING, INSPECTION, AND TESTS 8.1 General. Tests described in 8.2 shall be required only on insulators of new designs. Tests de
43、scribed in 8.3 shall be required on each lot of insulators. The tests described in 8.4 shall be made on each insulator. 8.2 Design Tests 8.2.1 Tensile Strength. Three insulators shall be selected at random and tested in accordance with 5.1.4.3 of ANSI C29.1-1988 (R2012). Failure of the average stren
44、gth of the three insulators to meet the strength requirements given in the applicable table, or failure of any one insulator to equal 85 percent of that strength requirement, shall constitute failure to meet the requirements of this standard. 8.2.2 Impulse Withstand. Three insulators shall be select
45、ed at random and tested in accordance with 4.8 of ANSI C29.1-1988. Failure of any insulator to meet the rated impulse-withstand value in the applicable table shall constitute failure to meet the requirements of this standard. 8.2.3 Compression Strength. Three insulators shall be selected at random a
46、nd tested in accordance with 5.1.4.4 of ANSI C29.1-1988. Failure of the average strength of the three insulators to meet the strength requirements given in the applicable table, or failure of any one insulator to equal 85 percent of that strength requirement, shall constitute failure to meet the req
47、uirements of this standard. 8.2.4 Thermal Shock. Three insulators shall be selected at random and tested for ten complete cycles in accordance with 5.5 of ANSI C29.1-1988. The temperature of the hot-water bath shall be approximately 150F (66C), and the temperature of the cold-water bath shall be app
48、roximately 39F (4C). At the end of the tenth cycle, the test specimens shall be checked for electrical soundness. If one insulator fails, three additional insulators shall be selected at random and tested. Failure of more than one insulator from the first sample, or from the first and second samples
49、 combined, shall constitute failure to meet the requirements of this standard. C29.10-1989 (R2002, R2012) Page 3 Copyright 2013 by National Electrical Manufacturers Association 8.2.5 Torsional Strength. Three insulators shall be selected at random and tested in accordance with 5.1.4.2 of ANSI C29.1-1988. Failure of the average strength of the three insulators to meet the strength requirement given in the applicable table, or failure of any one insulator to equal 85 percent of that strength requirement, shall constitute failure to mee
