NEMA C119 0-2015 Electric Connectors Testing Methods and Equipment Common to the ANSI C119 Family of Standards.pdf

1、NEMA Standards PublicationNational Electrical Manufacturers AssociationANSI C119.0-2015Electric Connectors Testing Methods and Equipment Common tothe ANSI C119 Family of StandardsANSI C119.0-2015 American National Standard for Electric Connectors Testing Methods and Equipment Common to the ANSI C119

2、 Family of Standards Secretariat: National Electrical Manufacturers Association Approved: August 14, 2015 Published: October 1, 2015 American National Standards Institute, Inc. 2015 National Electrical Manufacturers Association NOTICE AND DISCLAIMER The information in this publication was considered

3、 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. ANSI standards and guidelin

4、e 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 by this publication. While NEMA administer

5、s the process to promote fairness in the development 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 disc

6、laims liability for any personal injury, property, 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 w

7、arranty, express or implied, as to the accuracy 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

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9、on or entity to someone else. Anyone using this 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

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11、r inspect products, designs, or installations for safety or health purposes. Any certification or other statement of compliance with any health- or safety-related information in this document shall not be attributable to NEMA and is solely the responsibility of the certifier or maker of the statemen

12、t. ANSI C119.0-2015 i AMERICAN NATIONAL STANDARD Approval of an American 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 A

13、NSI Board of Standards Review, substantial agreement has been reached 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 effor

14、t be made toward their resolution. The use of American National Standards 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 conform

15、ing to the standards. The American National Standards Institute does 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 n

16、ame of the American National Standards Institute. Requests for interpretations 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 Ameri

17、can National Standards Institute require that action be taken periodically 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

18、 Electrical Manufacturers Association 1300 North 17thStreet, Suite 900, Rosslyn, Virginia 22209 2015 National Electrical Manufacturers Association All rights, including translation into other languages, reserved under the Universal Copyright Convention, the Berne Convention for the Protection of Lit

19、erary and Artistic Works, and the International and Pan American copyright conventions. No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without prior written permission of the publisher. Printed in the United States of America ANSI C119.0-20

20、15 ii 2015 National Electrical Manufacturers Association Foreword (Neither this foreword nor any of the informative annexes is a part of American National Standard C119.0-2015.) This standard describes electrical and mechanical tests that are common to the ANSI C119 family of standards, which are us

21、ed to establish performance characteristics of connectors used to join aluminum-to-aluminum, aluminum-to-copper, or copper-to-copper bare and insulated conductors. This document is the first publication of the ANSI C119.0 standard. It is not intended to be used in isolation from the other publicatio

22、ns in the ANSI C119 family of product standards. It is intended that other ANSI C119 standards will make reference to C119.0 where a standardized test technique or procedure is required1. Consequently, there might be parts of ANSI C119.0 that do not fit coherently with the rest of the sections in th

23、e C119.0 document but are pertinent to the requirements of the other standards in the ANSI C119 family. Included within the ANSI C119.0 standard: a) Recommendations and requirements for instrumentation and equipment used for performing tests common to the ANSI C119 family of standards. b) Two option

24、al tests that were previously part of ANSI C119.4-2011: Optional Fault Current Test (Annex B) and Optional Corrosion Test (Annex C). The subcommittee has provided these optional performance tests as references in response to users who have requested guidance for these types of additional performance

25、 tests. c) An alternate, accelerated current cycle test method, henceforth referred to as the current cycle submersion test (CCST). The CCST method differs from the traditional current cycle test (CCT) in that test conductors are rapidly cooled by immersion in chilled water at the beginning of the “

26、current-OFF” cycle, and the test requires fewer total current-ON and current-OFF cycles. Comparative testing has demonstrated that the CCST method will provide essentially the same performance test results as the traditional CCT in fewer test cycles. The techniques and methods presented in this stan

27、dard were initially developed under the direction of the Transmission and Distribution Committee of the Edison Electric Institute (EEI). Tentative performance-type specifications for electrical characteristics were issued in joint report form in 1958 by a steering committee of EEI and an advisory co

28、mmittee of manufacturers on the aluminum conductor research project (EEI Pub. No. 59-70, Tentative Specifications for Connectors for Aluminum Conductors). Experience gained from extensive trial use further confirmed the performance criteria and test conditions of the tentative specifications and led

29、 to the development of Standard TDJ 162 in October 1962 by a joint committee of EEI and the National Electrical Manufacturers Association (NEMA). TDJ 162 was subsequently superseded by ANSI C119.4. The ANSI C119.0 Subcommittee of the Accredited Standards Committee on Connectors for Electric Utility

30、applications, C119, in its continuing review of the publication, seeks out the views of responsible users that will contribute to the development of better standards. Suggestions for improvement of this standard are welcome. They should be sent to: National Electrical Manufacturers Association 1300

31、North 17thStreet, Suite 900 Rosslyn, Virginia 22209 1A copy of ANSI C119.0 will be provided, at no additional charge, with the purchase of any of the ANSI C119 product standards. ANSI C119.0-2015 iii This standard was processed and approved for submittal to ANSI by the Accredited Standards Committee

32、 on Connectors for Electrical Utility Applications, C119. Committee approval of this standard does not necessarily imply that all committee members voted for its approval. At the time it approved this standard, the C119 Main Committee had the following members: Harry Hayes, Chairperson Michael Zaffi

33、na, Vice Chairperson Paul Orr, Secretary Organization Represented: Name of Representative: Electric Utility Industry Enes Basic Michael Dyer Russell Hall Harry Hayes C. Cory Morgan Jesus Rodriguez Curt Schultz Gerald Wasielewski William Winge Thomas Wolfe Michael Zaffina EPRI John Chan Gary Sibilant

34、 National Electric Energy Testing Research equalizers are not required on solid conductors). The control conductor shall be the same type and size as the conductor in the current cycle loop that would be at the highest temperature. Its length shall be twice that given in Table 5 or Table 6. 5.1.6.1

35、Multiple Control Conductors If the test loop includes different conductors, and a question arises as to which conductor has the highest temperature rise, a control conductor of each type is required. The control conductor providing the higher rise in temperature for a fixed current shall be used as

36、the reference control ANSI C119.0-2015 2015 National Electrical Manufacturers Association 5 conductor for setting the test loop current (Section 5.1.7.4) and performing all temperature difference calculations. 5.1.6.2 Equivalent Aluminum/Copper Conductors Where the copper and aluminum test conductor

37、s are of approximate equivalent ampacity, the size of the control conductor may be determined by selecting the conductor in the current cycle loop that has the least current for equivalent aluminum/copper conductors from Table 7 and Table 8. 5.1.7 Loop Configuration and Location 5.1.7.1 General Test

38、 loops shall be located in a space meeting the requirements of Section 3.2. Measures shall be taken to ensure that thermal or electrical influence of adjacent loops in the lab space does not affect the measurement accuracy or stability of the data. Particularly in the case of loops operating near hi

39、gh-temperature loops, strong infrared radiation (IR) and hot convection plumes will significantly raise the temperature of nearby tests. 5.1.7.2 CCT Method The current cycle loop may be of any shape, provided the location of thermocouples for the connectors and the center of the control conductor ar

40、e installed at the same elevation with at least an 200 mm (8 in.) separation between adjacent conductor-connector and equalizer assemblies and located at least 305 mm (12 in.) from any exterior wall and at least 610 mm (24 in.) from the floor and the ceiling. NOTEThis is intended to assure that the

41、control conductor and the connectors begin the next current-ON period at the same temperature. The CCT current shall be adjusted during the current-ON period of the first 25 cycles to result in a stable maximum temperature rise in the control conductor specified in the product standard. This current

42、 shall then be used during the remainder of the test current-ON periods, regardless of the temperature of the control conductor. 5.1.7.3 CCST Method The control conductor shall be installed on the same horizontal plane as the test connectors. During the current-ON period, no part of the circuit shal

43、l be less than 200 mm (8 in.) above the surface of the chilled water. At the beginning of the current-OFF period, the connectors and the control conductor shall be submerged to a minimum of 100 mm (4 in.) below the water surface. NOTEThis is intended to assure that the control conductor and the conn

44、ectors begin the next current-ON period at the same temperature. 5.1.7.4 Test Current Suggested initial test amperes during test startup are given in Table 7 and Table 8 in order to reduce the number of cycles to determine the required temperature rise in the control conductor for 100C temperature r

45、ise above ambient. Subsequently, the actual test current might have to be adjusted from these values to achieve the required control conductor temperature rise. For conductor sizes within the range of, but not included in, those listed in Table 7 and Table 8, some experimentation, interpolation or e

46、xtrapolation of the test current values will be required to achieve the required control conductor temperature rise. For conductors outside the listed range, and for temperature rise other than 100C above ambient, refer to IEEE 738 for computation of the required current. It shall be permissible to

47、use a current 50% greater than the steady state current during the initial heating phase, provided there is no over-shoot above the nominal test temperature. The CCST current shall be adjusted during the current-ON period of the first five cycles to result in a stable maximum temperature rise in the

48、 control conductor as specified in the product ANSI C119.0-2015 6 2015 National Electrical Manufacturers Association standard. This current shall then be used during the remainder of the test current-ON periods, regardless of the temperature of the control conductor. NOTEThe currents in Table 7 and

49、Table 8 are not intended to suggest conductor current ratings for actual service use. 5.1.8 Current Cycle Period 5.1.8.1 General Each test cycle shall consist of a current-ON and a current-OFF period. The time required to make resistance and temperature measurements is not considered a part of the current-ON or current-OFF time periods. 5.1.8.2 CCT and CCST Current Cycle-ON Period The minimum duration of the current-ON period shall be as specified in the product standard. The CCT current shall be adjusted during the current-ON period of the first 25 cycles to result in a stab