ANSI NEMA C29.9-1983 Wet Process Porcelain Insulators - Apparatus Post Type.pdf

1、NEMA Standards PublicationNational Electrical Manufacturers AssociationANSI/NEMA C29.9-1983 (R2012)Wet Process Porcelain Insulators Apparatus, Post TypeANSI/NEMA C29.9-1983 (R2002, R2012) American National Standard Wet Process Porcelain Insulators Apparatus, Post Type Secretariat: National Electrica

2、l Manufacturers Association 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 tim

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17、y to reaffirm, revise, 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

18、 22209 Copyright 2013 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 Cop

19、yright Conventions. No 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. C29.9-1983 (R2002, R2012) Page i Copyright 2013 by National Electrical Manufa

20、cturers Association FOREWORD (This foreword is not part of American National Standard C29.9-1983 (R2002, R2012) The first edition of this standard was essentially based on the EEI-NEMA Standard Wet-Process Porcelain Insulators (Apparatus, Post Type), EEI TDJ-59, NEMA 147-1956. (EEI is the Edison Ele

21、ctric Institute; NEMA is the National Electrical Manufacturers Association). It was developed by the American National Standards Committee on Insulators for Electric Power Lines, C29. This standard has been revised three times by the C29 Committee. This third revision (1) makes numerous editorial ch

22、anges deemed to improve clarity; (2) removes porcelain color as a requirement; (3) changes the test description for ferrous metal parts galvanizing; (4) moves packing requirements to an appendix; (5) requires electrical tests to be made on completely assembled insulators; (6) revises the mechanical

23、proof test requirements; (7) increases routine test values to 50 percent of rating; and (8) adds optional routine cantilever and bending movement tests. Suggestions for improvement of this standard will be welcome. They should be sent to the National Electrical Manufacturers Association, 1300 North

24、17th Street, Suite #1752, Rosslyn, VA 22209. This standard was processed and 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 t

25、he time it approved this standard, the ASC C-29 Committee had the following 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

26、. Obenchain (alt) Institute of Electrical and Electronic Engineers T. Grisham 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. Sc

27、hwalm (alt) Tennessee Valley Authority J. Nelson Western Area Power Administration R. Clark C29.9-1983 (R2002, R2012) Page ii Copyright 2013 by National Electrical Manufacturers Association C29.9-1983 (R2002, R2012) Page iii Copyright 2013 by National Electrical Manufacturers Association TABLE OF CO

28、NTENTS Page FOREWORD iv 1 SCOPE 1 2 DEFINITIONS 1 3 GENERAL . 1 4 MATERIAL 1 5 DIMENSIONS AND CHARACTERISTICS 2 6 MARKING 2 7 SAMPLING, INSPECTION, AND TESTS . 2 7.1 General .2 7.2 Design Tests . 2 7.2.1 Low-Frequency Wet Withstand . 2 7.2.2 Critical-Impulse Flashover, Positive . 2 7.2.3 Impulse Wit

29、hstand . 2 7.2.4 Radio-Influence Voltage 2 7.2.5 Compression Strength . 2 7.2.6 Thermal Shock 2 7.2.7 Torsional Strength . 3 7.3 Quality Conformance Tests . 3 7.3.1 Visual and Dimensional Tests . 3 7.3.2 Porosity Test 3 7.3.3 Galvanizing Test 3 7.3.4 Cantilever-Strength 3 7.3.5 Tensile Strength . 3

30、7.4 Routine Tests . 3 7.4.1 Mechanical Proof . 4 8 REFERENCED STANDARDS . 4 8.1 American National Standards . 4 8.2 Other Standard . 4 TABLES 1 Dimensions the catalog number, or class number; or description of the contents; and the manufacturers name. Appendix B Additional Electrical Design Tests If

31、 the following additional electrical design tests are required, the procedure given in this Appendix may prove useful B1. Low-Frequency Dry Flashover Three insulators should be selected at random and tested in accordance with 4.2 of ANSI C29.1-1982 (R2012). The average dry-flashover value of the thr

32、ee insulators should be equal to or exceed 95 percent of the rated dry-flashover value of the insulator. B2. Low-Frequency Wet Flashover Three insulators should be selected at random and tested in accordance with 4.3 of ANSI C29.1-1982 (R2012). The average dry-flashover value of the three insulators

33、 should be equal to or exceed 90 percent of the rated wet-flashover value of the insulator. B3. Critical Impulse Flashover - Negative Three insulators should be selected at random and tested in accordance with 4.7 of ANSI C29.1-1982 (R2012). The average critical impulse flashover, negative, value of

34、 the three insulators should be equal to or exceed 92 percent of the rated critical impulse flashover, negative value of the insulator. NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION 1300 NORTH 17TH STREET, SUITE 900 ROSSLYN. VA 22209www.NEMA.orgTO ORDER ADDITIONAL NEMA STANDARDS VISITWWW.GLOBAL.IHS.COM OR CALL 1-800-854-7179/1-303-397-79565612_0514TB