1、NEMA Standards PublicationNational Electrical Manufacturers AssociationANSI/NEMA C29.8-1985 (R2012)Wet Process Porcelain Insulators Apparatus, Cap and Pin TypeANSI/NEMA C29.8-1985 (R2002, R2012) American National Standard Wet Process Porcelain Insulators Apparatus, Cap and Pin Type Secretariat: Nati
2、onal Electrical Manufacturers Association Approved: August 2012 Published: May 20, 2013 American National Standards Institute, Inc. C29.8-1985 (R2002, R2012) Page ii Copyright 2013 by National Electrical Manufacturers Association NOTICE AND DISCLAIMER The information in this publication was consider
3、ed technically sound by the consensus of persons engaged in the development and approval of the document at the time it was developed. Consensus does not necessarily mean that there is unanimous agreement among every person participating in the development of this document. American National Standar
4、ds Institute (ANSI) standards and guideline publications, of which the document contained herein is one, are developed through a voluntary consensus standards development process. This process brings together volunteers and/or seeks out the views of persons who have an interest in the topic covered
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8、oes not undertake to guarantee the performance of any individual manufacturer or sellers products or services by virtue of this standard or guide. In publishing and making this document available, NEMA is not undertaking to render professional or other services for or on behalf of any person or enti
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11、th the contents of this document. NEMA does not certify, test, or inspect products, designs, or installations for safety or health purposes. Any certification or other statement of compliance with any health or safetyrelated information in this document shall not be attributable to NEMA and is solel
12、y the responsibility of the certifier or maker of the statement.C29.8-1985 (R2002, R2012)Page iii Copyright 2013 by National Electrical Manufacturers Association AMERICAN NATIONAL STANDARD Approval of an American National Standard requires verification by ANSI that the requirements for due process,
13、consensus, and other criteria for approval have been met by the standards developer. Consensus is established when, in the judgment of the ANSI Board of Standards Review, substantial agreement has been reached by directly and materially affected interests. Substantial agreement means much more than
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15、her he has approved the standards or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not conforming to the standards. The American National Standards Institute does not develop standards and will in no circumstances give an interpretation of any American N
16、ational 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 addressed to the secretariat or sponsor whose name appears on the title
17、 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, or withdraw this standard. Purchasers of American National Stand
18、ards 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 g164 Copyright 2013 by National Electrical Manufacturers Association All rights
19、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. No part of this publication may be reproduced in any form, in
20、an electronic retrieval system or otherwise, without the prior written permission of the publisher. Printed in the United States of America. C29.8-1985 (R2002, R2012) Page iv Copyright 2013 by National Electrical Manufacturers Association FOREWORD (This foreword is not part of American National Stan
21、dard C29.8-1985 (R2002, R2012) The first edition of this standard was essentially based on the EEI-NEMA Standard Wet-Process Porcelain Insulators (Apparatus, Cap and Pin Type), EEI TDJ-58, NEMA 146-1956. (EEI is the Edison Electric Institute; NEMA is the National Electrical Manufacturers Association
22、). Subsequent revisions were developed by the American National Standards Committee on Insulators for Electric Power Lines, C29. This standard has been revised four times by the C29 Committee. The principal differences between this revision and the 1980 edition include: 1) moving packing recommendat
23、ions to the Appendix 2) changing the description of the test for ferrous metal parts galvanizing 3) replacing the figures with a table of dimensions and characteristics 4) requiring electrical tests to be made on completely assembled insulators This standard was processed and approved for submittal
24、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 members: Rob Christman,
25、Chairman Steve Griffith, Secretary Organization Represented: Name of Representative: Edison Electric Institute B. Freimark R. ChristmanE. Cleckley M.GarlsW. Avey J. Varner (alt) R. Kluge (alt) G. Obenchain (alt) Institute of Electrical and Electronic Engineers T. Grisham J. Hildreth A. Jagtiani J. K
26、uffelA. Phillips E. Gnandt (alt) National Electrical Manufacturers Association P. Maloney A. BakerR. A. Bernstorf G. Powell G. A. Stewart E. Kress (alt)Z. Lodi (alt) E. Niedospial (alt) A. Schwalm (alt) Tennessee Valley Authority J. Nelson Western Area Power Administration R. Clark C29.8-1985 (R2002
27、, R2012) Page v Copyright 2013 by National Electrical Manufacturers Association TABLE OF CONTENTS Page FOREWORD .iv 1 SCOPE . 1 2 REFERENCED STANDARDS 1 2.1 American National Standards 1 2.2 Other Standard 1 3 DEFINITIONS 1 4 GENERAL 1 5 MATERIAL . 1 6 DIMENSIONS AND CHARACTERISTICS . 2 7 MARKING 4
28、8 SAMPLING, INSPECTION, AND TESTS 4 8.1 General4 8.2 Design Tests . 4 8.2.1 Low-Frequency Wet Withstand 4 8.2.2 Critical-Impulse Flashover, Positive. 4 8.2.3 Impulse Withstand. 4 8.2.4 Radio-Influence Voltage . 4 8.2.5 Compression Strength . 4 8.2.6 Thermal Shock . 4 8.3 Quality Conformance Tests .
29、4 8.3.1 Visual and Dimensional Tests 4 8.3.2 Porosity Test . 5 8.3.3 Galvanizing Test . 5 8.3.4 Cantilever-Strength 5 8.3.5 Torsional Strength . 5 8.3.6 Tensile Strength . 5 8.3.7 Puncture5 8.4 Routine Tests . 5 8.4.1 Tension Proof . 5 8.4.2 Flashover5 TABLES 1 Dimensions and Characteristics of Cap-
30、and-Pin Type Apparatus Insulators . 3 APPENDIX. 6 C29.8-1985 (R2002, R2012) Page vi Copyright 2013 by National Electrical Manufacturers Association C29.8-1985 (R2002, R2012) Page 1 Copyright 2013 by National Electrical Manufacturers Association Wet Process Porcelain InsulatorsApparatus, Cap and Pin
31、Type 1 SCOPE This standard covers outdoor high-voltage cap-and-pin type apparatus insulators made of wet-process porcelain and used in the transmission and distribution of electrical energy. 2 REFERENCED STANDARDS 2.1 American National Standards. This standard is intended for use in conjunction with
32、 the following American National Standards. When these standards are superseded by a revision approved by the American National Standards Institute, Inc. the revision shall apply. ANSI C29.1-1988 (R2012) Test Methods for Electrical Power Insulators ANSI Z55.1-1967 (R1973) American National Standard
33、Gray Finishes for Industrial Apparatus and Equipment 2.2 Other Standard. This standard is intended for use in conjunction, ASTM A153-82 with Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware. 3 DEFINITIONS 3.1 See section 2 of ANSI C29.1-1988 (R2012) for definitions of terms. 3.2 I
34、n this standard, the word insulator shall refer to a unit or to a stack of two or more units. 3.3 The technical reference numbers appearing in Table 1 are a widely used and recognized identification series for apparatus insulator units or stacks. 4 GENERAL 4.1 Insulators shall conform in all respect
35、s to the requirements of this standard. The text and figures supplement each other and shall be considered part of this standard. 4.2 Manufacturers drawings, if furnished, shall show the outline of the insulators, together with all pertinent dimensions. Any variations in these dimensions due to manu
36、facturing tolerances shall be indicated. 5 MATERIAL 5.1 The insulators shall be made of good commercial-grade wet-process porcelain. AM ERICAN NAT IO NAL ST ANDARD ANSI/NEMA C29.8-1985 (R2002, R2012) C29.8-1985 (R2002, R2012) Page 2 Copyright 2013 by National Electrical Manufacturers Association 5.2
37、 The entire surface of the insulator, 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 ANSI Z55.1-1967 (R1967) and conform to Munsell nota
38、tion 5BG 7.0/0.4 with the following tolerances: 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, steel, or aluminum. Ferrous parts other than stainless steel shall be galvanized in accordance with AS
39、TM A153-82. 6 DIMENSIONS AND CHARACTERISTICS 6.1 Dimensions and characteristics shall be in accordance with table 1. 6.2 Shell diameters given for insulators listed in table 1 shall not be exceeded by more than 3 percent to ensure physical clearances in assembled apparatus . 6.3 Minimum dimensions a
40、re limited by other specified characteristics . 6.4 The length tolerance for any individual unit shall be 1/32 inch. C29.8-1985 (R2002,R2012) Page 3 Copyright2013 byNational Electrical ManufacturersAssociation Table1Dimensionsand CharacteristicsofCap-And-Pin TypeApparatusInsulatorsRadio-Influence-Vo
41、ltageDataNum-Maxi-CantileverTechnicalReferenceNumberberofHeightmum CapBoltCircleStrength(lb)Com-Low-FrequencyMaximum RIVLow-LeakageLow-FrequencyCriticalImpulseTechnicalReferenceUnits.perDiam-Diam-Diam-TensileTorsionalpressionTensionTest(VatFrequencyDis-WetImpulseFlashover. perStackStack (in)eter(in)
42、eter(in)eter1(in)UprightUnderhungStrength (lb)Strength (in-lb)Strength (lb)Proof(lb)Voltage (kV)1000 kHz)Puncture(kV)tance2(in)Withstand3(kV)Withstand3(kV)Positive(kV)NumberStackUnitStackUnit117-1/27532000100050006000100001250550807-1/23095105141108532000100050007000100001250105011512451101254711210
43、-1/2632000100050008000100001250151001452060150170710115136320001000700010000150001750221001952880200225_1013118147-5/832000100080001200015000200030200225361002502801316147229148315001000120001500025000442005214535039016147411896-1/2540003000100001200020000200055090830951054144110106-3/45400030001000
44、0140002000020001050115144511012544461121285400030001000016000200002000I510014518601501704649115148-1/454000300014000200003000020002210019528802002254956140229179-3/453000235020000400006000044200661603504105614019140343-1/2179-3/451700147020000400006000073200992305506101914025140458179-3/451200107020
45、00040O0060000103500132315750810251401231414581810-7/8520001750250009000075000103500132315750810123141126140572-1/2179-3/45910840200004000060000125500165385900101012614027141572-1/21810-7/8514501350250009000075000125500165385900101027141128140687179-3/4575070020000400006000014650019845510501210128140
46、281416871810-7/851170110025000900007500014650019845510501210281411291426871810-7/8711701100250009000075000146500198455105012101291421331427101-1/21810-7/87100095025000900007500018010002315251300141013314213514281161810-7/87900860250009000075000210100026459014701610135142147114-1/21483300020001200015
47、000250002000221001952670190210147140114-1/2179-3/45700040002000040000600002000221002153375210235140141114-1/21810-7/851000060002500090000750002000221002153375210235141142114-1/21810-7/871000060002500090000750002000221002153375210235142191114-1/21810-7/872000012000400001200001000002000221002153375210
48、2351911961916871810-7/872300230040000120000100000146500198455105012101961911971917101-1/21810-7/87200020004000012000010000018010002315251300141019719119819181161810-7/871750175040000120000100000 210100026459014701610198191139114-1/2179-3/45100006000250009000075000200022100215337521023513917413945817
49、9-3/4520001750250009000075000103500132315750810174139175139572-1/2179-3/45145013502500090000750001255001653859001010175139176139687179-3/451170110025000900007500014650019845510501210176139164114-1/2147-5/83400035001200030000600002000221002253375210235164166164229147-5/83200020001200030000600004420066160350410166164167164343-1/2147-5/83100010001200030000600007320099230550610167164168164458147-5/831000100012000300006000
