1、NEMA Standards PublicationNational Electrical Manufacturers AssociationANSI/NEMA C29.18-2013American National Standard for CompositeInsulators Distribution Line Post MethodsANSI/NEMA C29.18-2013 American National Standard For Composite Insulators Distribution Line Post Type Secretariat: National Ele
2、ctrical Manufacturers Association Approved: May 2013 Published: March 12 2014 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
3、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 Standards Institute (ANSI) standards and guideline publications, of which the document contained herein is one, are
4、 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 by this publication. While NEMA administers the process and establishes rules to promote fairness in the dev
5、elopment of consensus, it does not write the document and it does not independently test, evaluate, or verify the accuracy or completeness of any information or the soundness of any judgments contained in its standards and guideline publications. NEMA disclaims liability for any personal injury, pro
6、perty, or other damages of any nature whatsoever, whether special, indirect, consequential, or compensatory, directly or indirectly resulting from the publication, use of, application, or reliance on this document. NEMA disclaims and makes no guaranty or warranty, express or implied, as to the accur
7、acy or completeness of any information published herein, and disclaims and makes no warranty that the information in this document will fulfill any of your particular purposes or needs. NEMA does not undertake to guarantee the performance of any individual manufacturer or sellers products or service
8、s 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 entity, nor is NEMA undertaking to perform any duty owed by any person or entity to someone else. Anyone using t
9、his document should rely on his or her own independent judgment or, as appropriate, seek the advice of a competent professional in determining the exercise of reasonable care in any given circumstances. Information and other standards on the topic covered by this publication may be available from ot
10、her sources, which the user may wish to consult for additional views or information not covered by this publication. NEMA has no power, nor does it undertake to police or enforce compliance with the contents of this document. NEMA does not certify, test, or inspect products, designs, or installation
11、s 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 solely the responsibility of the certifier or maker of the statement. AMERICAN NATIONAL STANDARD Approval of an A
12、merican National Standard requires verification by ANSI that the requirements for due process, 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 rea
13、ched by directly and materially affected interests. Substantial agreement means much more than a simple majority, but not necessarily unanimity. Consensus requires that all views and objections be considered, and that a concerted effort be made toward their resolution. The use of American National S
14、tandards is completely voluntary; their existence does not in any respect preclude anyone, whether 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 d
15、oes not develop standards and 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 in
16、terpretations should be addressed 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 per
17、iodically 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, Ros
18、slyn, VA 22209 Copyright 2014 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 Artistiac Works, and the International and Pan Ame
19、rican Copyright 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. C29.18-2013 Page i 2014 National Electrical Manufacturers Associatio
20、n FOREWORD (This Foreword is not part of American National Standard C29.18-2013) Suggestions for improvement of this standard will be welcome. They should be sent by the date of its next scheduled revision which is December 31st, 2016 to: Senior Technical Director, Operations National Electrical Man
21、ufacturers Association 1300 North 17th Street 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
22、 for approval. At the 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 R. Kluge J. Varner (al
23、t) G. Obenchain (alt) Institute of Electrical and Electronic Engineers T. Grisham J. Hildreth A. Jagtiani J. Kuffel E. Gnandt (alt) National Electrical Manufacturers Association P. Maloney A.C. Baker R.A. Bernstorf D.G. Powell G.A. Stewart E. Willis (alt) Z. Lodi (alt) E. Niedospial (alt) A. Schwalm
24、 (alt) Tennessee Valley Authority J. Nelson R. Stargel (alt) Western Area Power Administration R. Clark C29.18-2013 Page ii 2014 National Electrical Manufacturers Association C29.18-2013 Page iii 2014 National Electrical Manufacturers Association TABLE OF CONTENTS Page FOREWORD . iv 1 SCOPE 1 2 REFE
25、RENCES TO THE TEXT 1 2.1 References to American National Standards . 1 2.2 References to other than American National Standards 1 3 DEFINITIONS 1 4 GENERAL 1 5 MATERIALS 1 5.1 Core . 1 5.2 Weathersheds .2 5.3 Metal Parts . 2 6 DIMENSIONS AND CHARACTERISTICS 2 7 MARKING 2 8 PROTOTYPE TESTS 2 8.1 Wate
26、r Penetration Test . 3 8.2 Aging or Accelerated Weathering Test 3 8.3 Dye Penetration Test 3 8.4 Water Diffusion Test 3 8.5 Power Arc Test . 3 8.6 Tracking and Erosion Test . 4 8.7 Specified Tensile Load (STL) Test . 5 8.8 Thermal Mechanical Test . 5 8.9 Flammability Test for the Shed and Housing Ma
27、terial . 5 9 ELECTRICAL DESIGN TESTS . 5 9.1 Low-Frequency Voltage Dry Flashover Test 5 9.2 Low-Frequency Voltage Wet Flashover Test . 6 9.3 Critical Impulse Voltage Flashover Tests Positive 6 9.4 Radio Influence Voltage Tests . 6 10 SAMPLE TESTS 6 10.1 Dimensional Test 6 10.2 Galvanizing Test . .6
28、10.3 Cantilever Breaking Load (CBL) Test . 6 11 ROUTINE TESTS 6 11.1 Tensile Load Test . 6 11.2 Visual Examination . 7 TABLE 1 Dimensions and Characteristics Composite Distribution Line Posts . 8 FIGURES 1 Vertical Tie-Top C-Neck Type. Classes 51-1C, 51-2C, 51-3C, & 51-4C 9 2 Vertical Tie-Top F-Neck
29、 Type. Classes51-1F, 51-2F, 51-3F, & 51-4F . 9 3 Vertical ClampTop Center Tap Base Type. Classes 51-11, 51-12, 51-13, 51-14, 51-15, & 51-16 . 10 4 Horizontal ClampTop Center Tap Base Type L. Classes 51-21, 51-22, 51-23, 51-24, 51-25, & 51-26 . 10 5 Horizontal ClampTop Gain base Type. Classes 51-31,
30、51-32, 51-33, 51-34, 51-35, & 51-36 10 6 Cap DimensionsVertical Clamp 11 7 Cap DimensionsHorizontal Clamp 11 C29.18-2013 Page iv 2014 National Electrical Manufacturers Association 8 Cap Gauge 12 9 Base Recess and Thread Dimensions . 12 10a Gain Base Details . 13 10b Gain Base Details . 13 11 Trackin
31、g and Erosion Test Method 1 (Spray Type Tracking Wheel) . 14 12 Tracking and Erosion Test Method 2 (Dip-Tank Type Tracking Wheel) 15 APPENDIX A . 16 C29.18-2013 Page 1 2014 National Electrical Manufacturers Association For Composite InsulatorsDistribution Line Post Type 1 SCOPE This standard covers
32、composite distribution line post type insulators with section lengths 30.6 in (777 mm) or less made of a fiberglass-reinforced resin rod core, polymer material weathersheds, and metal end fittings as defined in this standard and intended for use on overhead lines for electric power systems. Mechanic
33、al and electrical performance levels specified herein are requirements for new insulators. 2 REFERENCES TO THE TEXT 2.1 References to American National Standards When the following American National Standards referred to in this document are superseded by a revision approved by the American National
34、 Standards Institute, Inc., the revision shall apply. ANSI C29.1-1988 (R2012) American National Standard Test Methods for Electrical Power Insulators ANSI C29.11-2012 American National Standard for Composite Insulators Test Methods 2.2 References to other than American National Standards ASTM 153-19
35、95 Specifications for Zinc Coating (Hot-Dip) on Iron and Steel Hardware ASTM G-155-05a Standard Practice for Operating Xenon-Arc-Apparatus for Exposures of Nonmetallic Materials ASTM D2565-1999 Standard Practice for Xenon Arc Exposure of Plastics Intended for Outdoor Use ASTM G154 -06 Standard Pract
36、ice for Operating Light Fluorescent Light Apparatus for UV Exposure of Non-metallic Materials IEC 60695-11-10 Fire Hazard TestingPart 11-10 Test Flames50 W Horizontal and Vertical Flame Test Methods. 3 DEFINITIONS See Section 3 of American National Standard for Composite Insulators Test Methods, ANS
37、I C29.11 and Section 2 of American National Standard Test Methods for Electrical Power Insulators, ANSI C29.1 for definition of common terms used in this standard. 4 GENERAL 4.1 Insulators shall conform in all respects to the requirements of this standard. The text and figures supplement each other
38、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 electrical and mechanical characteristics, and dimensions as specified herein. 5 MATERIALS AMERICAN NATIONAL STANDARD ANSI/NEMA C29.18-2013 C
39、29.18-2013 Page 2 2014 National Electrical Manufacturers Association 5.1 Core The core of the insulator shall consist of a fiberglass-reinforced resin rod. The core shall be sound and free of defects that might adversely affect the mechanical or electrical properties of the insulators. 5.2 Weathersh
40、eds The weathersheds shall be made of polymer materials such as ethylene propylene elastomer or silicone elastomer. They may contain inorganic fillers and organic compounding agents. 5.3 Metal Parts Metal parts shall be made of a good commercial grade of malleable iron, ductile iron, steel, or alumi
41、num. Ferrous parts, other than stainless steel, shall be galvanized in accordance with ASTM A153. 6 DIMENSIONS AND CHARACTERISTICS Dimensions and characteristics of the insulators shall be in accordance with the manufacturers drawings, Figures 1 through 5, and Table 1. The shapes of the weathersheds
42、 and spacing between them are not a part of this standard. The allowed tolerances for all dimensions for which special tolerances do not apply shall be in accordance with Section 5 of ANSI C29.11. 7 MARKING Each insulator shall be clearly and indelibly marked with symbols identifying the manufacture
43、r, a manufacturing date code or year of manufacture and the Specified Cantilever Load (SCL) with appropriate units*. * NOTE: FOR CONVENIENCE IN IDENTIFYING AN INSULATOR, MARKING MAY ALSO INCLUDE THE MANUFACTURERS HISTORICAL RATINGS SUCH AS REFERENCE CANTILEVER LOAD (RCL), MAXIMUM DESIGN CANTILEVER L
44、OAD (MDCL), MAXIMUM WORKING LOAD (MWL), OR WORKING CANTILEVER LOAD (WCL). 8 PROTOTYPE TESTS Prototype tests are required to verify the suitability of the materials and methods of manufacture for insulators defined by the following same characteristics: (1a) shed material (1b) housing material (2a) s
45、hed design (includes diameter, thickness, and shape) (2b) housing design (includes thickness and covering of metal fittings) (3) core material (4) core diameter (5) metal fitting material (6a) metal fitting connection zone (6b) core-metal-housing interface (7) metal fitting method of attachment to c
46、ore To allow for manufacturing variations, (2a), (2b) and (4) may vary up to 15% before the prototype tests must be repeated, except retesting is not required for greater thickness of the shed or housing or increased rod diameter that exceed the 15% variation limitation. The insulator design shall b
47、e qualified by successful completion of the following tests. Design changes shall be tested as listed in the following table. C29.18-2013 Page 3 2014 National Electrical Manufacturers Association Prototype Test Requirements If the insulator design changes the Then the following design prototype test
48、s shall be repeated (Heading numbers refer to clauses in this standard) 8.1 Water Penetration 8.2 Aging 8.3 Dye penetration 8.4 Water diffusion 8.5 Power arc 8.6 Tracking &erosion 8.7 Tensile 8.8 Thermal mechanical 8.9 Flammability (1a) Shed Material X X X X (1b) Housing Material X X X X X X X (2a) Shed Design X (2b) Housing Design X X X X (3) Core Material X X X X X X (4) Core Diameter X X X X (5) Metal End Fitting Material X X X X (6a) Metal End Fitting Connection Zone Design X X X (6b) Core-housing-metal End Fitting Interface Design X X X X X (7) Metal End Fitting Method of Attachme
