NEMA C29 17-2013 For Composite Insulators Transmission Line Post Type.pdf

1、NEMA Standards PublicationNational Electrical Manufacturers AssociationANSI/NEMA C29.17-2013Composite Insulators Transmission Line Post TypeANSI/NEMA C29.17-2013 American National Standard For Composite Insulators Transmission Line Post Type Secretariat: National Electrical Manufacturers Association

2、 Approved: October 2013 Published: January 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 the time it was developed. Con

3、sensus 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 developed through a voluntary

4、 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 development of consensus, it does

5、 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, property, or other damages of any

6、 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 accuracy or completeness of any inf

7、ormation 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 services by virtue of this standard o

8、r 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 this document should rely on hi

9、s 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 other sources, which the user ma

10、y 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 installations for safety or health purpose

11、s. 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 American National Standard requ

12、ires 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 reached by directly and materiall

13、y 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 Standards is completely volunta

14、ry; 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 does not develop standards and

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 addres

16、sed 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 2014

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 Artistiac Works, and the International and Pan American Copyright Conventions.

19、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. C29.17-2013 Page i 2014 National Electrical Manufacturers Association FOREWORD (This Foreword is

20、not part of American National Standard C29.17-2013). 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 Manufacturers Association 1300

21、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 for approval. At the time i

22、t 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 (alt) A. Shkuratkov (alt) K. Re

23、ese (alt) M. Gray (alt) Institute of Electrical and Electronic Engineers T. Grisham N. DeSantis A. Jagtiani J. Kuffel E. Gnandt (alt) National Electrical Manufacturers Association A. Schwalm A.C. Baker R.A. Bernstorf D.G. Powell G.A. Stewart E. Willis (alt) Z. Lodi (alt) E. Niedospial (alt) P. Malon

24、ey (alt) Bonneville Power Administration D. Liebhaber J. Havel (alt) Tennessee Valley Authority J. Nelson R. Stargel (alt) Western Area Power Administration R. Clark C29.17-2013 Page ii 2014 National Electrical Manufacturers Association C29.17-2013 Page iii 2014 National Electrical Manufacturers Ass

25、ociation TABLE OF CONTENTS Page FOREWORD . iv 1 SCOPE 1 2 REFERENCES 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 DIMENSIONS AND CHARACTERISTICS 2 5 MARKING 2 6 CLASSIFICATIONS OF TESTS 2 6.1 Prototype Te

26、sts General Description . 2 6.2 Design Tests General Description .3 6.3 Sample Tests General Description . 3 6.4 Routine Tests General Description . 4 7 PROTOTYPE TESTS 4 7.1 Tests on Interfaces and Connection of End Fittings . 4 7.2 Assembled Core Load Tests .4 7.3 Housing Tracking and Erosion Test

27、s . 5 7.4 Aging or Weathering Test 5 7.5 Core Material Tests . 5 7.6 Flammability Test . 5 8 DESIGN TESTS . 5 8.1 Low-Frequency Dry Flashover Test 6 8.2 Low-Frequency Wet Flashover Test 6 8.3 Critical Impulse Voltage Flashover Tests Positive and Negative 6 8.4 Radio Influence Voltage Tests (Optional

28、) 6 9 SAMPLE TESTS 6 9.1 Sample Selection .6 9.2 Verification of Dimensions . 6 9.3 Galvanizing Test . 7 9.4 Verification of Cantilever Strength Test . 7 9.5 Specified Tensile Load Test . 7 9.6 Retest Procedure for Sample Tests . 7 10 ROUTINE TESTS . 8 10.1 Tensile Load Test . 8 10.2 Visual Examinat

29、ion . 8 TABLE 1 Tolerances 2 2 Prototype Tests 3 3 Sample Size . 6 4 Minimum Average Thickness of Galvanizing 7 5a Class 250 Design Parameters for Horizontal Line Posts with Mounting Base and Drop Eye Fitting 9 5b Class 300 Design Parameters for Horizontal Line Posts with Mounting Base and Drop Eye

30、Fitting 10 5c Class 350 Design Parameters for Horizontal Line Posts with Mounting Base and Drop Eye Fitting 11 FIGURES 1 Electrodes for the Voltage Test for Cores with a Diameter Greater Than 1.75 Inches . 12 C29.17-2013 Page iv 2014 National Electrical Manufacturers Association 2 Example of Horizon

31、tal Clamptop End Fitting 13 3 Example of Blade Style End Fitting and Recommended Minimum Hole Spacing . 13 4 Examples of Detachable Gain Base and Common Dimensions 14 4 Examples of Detachable Flat Base and Common Dimensions . 15 APPENDIX A . 16 C29.17-2013 Page 1 2014 National Electrical Manufacture

32、rs Association For Composite InsulatorsTransmission Line Post Type 1 SCOPE This standard covers composite transmission line post type insulators with section lengths 41 inches (1041.4 mm) or greater made of a fiberglass-reinforced resin rod core, polymer material weathersheds and metal end fittings

33、as defined in this standard and intended for use on overhead lines for electric power systems. Mechanical 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

34、 Standards referred to in this document are superseded by a revision approved by the American National 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

35、Composite Insulators Test Methods 2.2 References to other than American National Standards IEEE Std. 4-1995 - IEEE Standard Techniques for High-Voltage Testing IEEE Std. 100-1984 - IEEE Dictionary of Electrical and Electronic Terms ASTM A153-1995 - ASTM Specification for Zinc Coating (Hot Dip) on Ir

36、on and Steel Hardware ASTM D2240-95 - ASTM Test Method for Rubber Property Durometer Hardness ASTM G26-95 - ASTM Practice for Operating Light Exposure Apparatus (Xenon-Arc Type) With and Without Water for Exposure of Nonmetallic Materials ASTM D2565-92a - ASTM Practice for Operating Xenon Arc-Type L

37、ight-Exposure Apparatus With and Without Water for Exposure of Plastics ASTM G53-95 - ASTM Practice for Operating Light- and Water-Exposure Apparatus (Fluorescent UV-Condensations Type) for Exposure of Nonmetallic Materials IEC 60707 - IEC Methods of test for the determination of the flammability of

38、 solid electrical insulating materials when exposed to an igniting source. ISO 3452 Crack Detection 3 DEFINITIONS See Section 3 of American National Standard for Composite Insulators Test Methods, ANSI C29.11 and Section 2 of American National Standard Test Methods for Electrical Power Insulators, A

39、NSI C29.1 for definition of common terms used in this standard. Maximum Design Cantilever Load An optional manufacturer assigned working load rating. AMERICAN NATIONAL STANDARD ANSI/NEMA C29.17-2013 C29.17-2013 Page 2 2014 National Electrical Manufacturers Association Abbreviations used in this docu

40、ment include: mA milliamperes rms root-mean-square s second mm millimeters kV kilovolts CIFO Critical Impulse Flashover MDCL Maximum Design Cantilever Load 4 DIMENSIONS AND CHARACTERISTICS General dimensions and characteristics of the insulator classes shall be in accordance with Tables 5a, 5b and 5

41、c. Additional sizes may be used by agreement between the user and manufacturer. Dimensions of end fittings shall be in accordance with figures 2 through 5, or by agreement between the user and the manufacturer. Requirements for the shape and spacing of weathersheds are not a part of this standard. T

42、he tolerances listed in Table 1 are allowed on all dimensions for which special tolerances do not apply. X is the dimension in either mm or inches as noted in the column heading. SI Units Imperial Units When x is: The tolerance shall be When x is: The tolerance shall be 300 mm (0.04x + 1.5) mm 11.81

43、 in. (0.04x + 0.06) in 300 mm (0.025x + 6) mm 11.81 in. (0.025x + 0.24) in Maximum 50 mm Maximum 2 in. Table 1 - Tolerances NOTE: GRADING FOR CONTROL OF RIV AND CORONA (ELECTRIC FIELD) MAY BE APPROPRIATE FOR COMPOSITE INSULATORS. 5 MARKING Each insulator shall be clearly and indelibly marked with sy

44、mbols identifying the manufacturer, 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 (RC

45、L), MAXIMUM DESIGN CANTILEVER LOAD (MDCL), MAXIMUM WORKING LOAD (MWL), OR WORKING CANTILEVER LOAD (WCL). 6 CLASSIFICATION OF TESTS 6.1 Prototype Tests GeneralDescription The purpose of these procedures is to verify the suitability of the product design, materials, and method of manufacture. The prot

46、otype tests are described in Section 7. Only one series of tests are required for each class, as defined below. A. The core and housing are of the same materials composition and method of manufacture as the tested insulator. B. The end fittings are of the same design and material, and use the same m

47、ethod of attachment to the core as the tested insulator. C. The design sheath thickness is the same or greater than the insulator(s) tested. C29.17-2013 Page 3 2014 National Electrical Manufacturers Association D. The maximum cantilever bending moment stress in the core at SCL is the same or less th

48、an that for the tested insulator. E. The depth and design of the connection zone of the ground end fitting (most highly stressed) are the same as that for the tested insulator. The prototype test report will include a drawing of the insulator tested, with applicable dimensions. These dimensions will at a minimum include those defined for the applicable class. The prototype test will be performed only once for the same class of insulator. To allow for manufacturing variations, the weathersh