IEEE-386-2006.pdf
IEEE Std 386-2006 (Revision of IEEE Std 386-1995) IEEE Standard for Separable Insulated Connector Systems for Power Distribution Systems Above 600 V I E E E 3 Park Avenue New York, NY 10016-5997, USA 1 March 2007 IEEE Power Engineering Society Sponsored by the Insulated Conductors Committee IEEE Std 386-2006 (Revision of IEEE Std 386-1995) IEEE Standard for Separable Insulated Connector Systems for Power Distribution Systems Above 600 V Sponsor Insulated Conductors Committee of the IEEE Power Engineering Society Approved 15 September 2006 IEEE-SA Standards Board -,-,- Abstract: Definitions, service conditions, ratings, interchangeable construction features, and tests are established for loadbreak and deadbreak separable insulated connector systems rated above 600 V and, 600 A or less, for use on power distribution systems. Keywords: deadbreak connector, elbow connector, loadbreak connector, power distribution systems, separable conductor, separable insulated connector systems _ The Institute of Electrical and Electronics Engineers, Inc. 3 Park Avenue, New York, NY 10016-5997, USA Copyright © 2007 by the Institute of Electrical and Electronics Engineers, Inc. All rights reserved. Published 1 March 2007. Printed in the United States of America. IEEE is a registered trademark in the U.S. Patent +1 978 750 8400. Permission to photocopy portions of any individual standard for educational classroom use can also be obtained through the Copyright Clearance Center. -,-,- Introduction This introduction is not part of IEEE Std 386-2006, IEEE Standard for Separable Insulated Connector Systems for Power Distribution Systems Above 600 V. This standard was developed in response to a need created by the rapid expansion of underground distribution systems. A key element that allowed this expansion to become a reality is the separable insulated connector. This device provides for simple and inexpensive connection and switching to transformers and other equipment used in underground distribution. When separable insulated connectors became available, the Institute of Electrical and Electronics Engineers (IEEE) and the National Electrical Manufacturers Association (NEMA) worked cooperatively to develop a document that defined the interfaces, ratings, and test conditions for the device. The success of that cooperative effort is apparent from both the vast number of these devices now in interchangeable use in the field and their enviable safety record. This cooperative effort continues due to the ongoing upgrading and changing nature of these underground systems and products. The recent cooperative effort has been provided by the ANSI C119.2 Subcommittee and the IEEE Working Group on Separable Connectors under the auspices of the Insulated Conductors Committee of the IEEE Power Engineering Society. This revision reflects the following major additions: Definitions of new and previously omitted connector components Overload current ratings for deadbreak connectors Optional color coding for 200 A loadbreak connectors Clarification of interchangeability requirements Bushing well stud torque withstand requirement Thermal cycle withstand test for non-elastomeric components Stacking dimensions for 200 A deadbreak and 600 A deadbreak connectors Test table reviewed to indicate sequence of tests Operating procedures for switching test expanded Trial-use guide for testing separable connector lubricants Operating interface ac withstand test for 200 A loadbreak connectors For information on the application of separable connectors, refer to IEEE Std 1215-2001 B9.a _ a The numbers in brackets correspond to those of the bibliography in Annex C. iv Copyright © 2007 IEEE. All rights reserved. -,-,- Notice to users Errata Errata, if any, for this and all other standards can be accessed at the following URL: http:/ standards.ieee.org/reading/ieee/updates/errata/index.html. Users are encouraged to check this URL for errata periodically. Interpretations Current interpretations can be accessed at the following URL: http:/standards.ieee.org/reading/ieee/interp/ index.html. Patents Attention is called to the possibility that implementation of this standard may require use of subject matter covered by patent rights. By publication of this standard, no position is taken with respect to the existence or validity of any patent rights in connection therewith. The IEEE shall not be responsible for identifying patents or patent applications for which a license may be required to implement an IEEE standard or for conducting inquiries into the legal validity or scope of those patents that are brought to its attention. Participants At the time this standard was completed, the NEMA Primary Connector Committee, 8CC-IV, had the following membership: Frank M. Stepniak, Chair Vince A. Baclawski, Secretariat Roy Jazowski John Makal Carl Wentzel Tiebin Zhao At the time this standard was completed, the joint IEEE Power Engineering Society, Insulated Conductors Committee, B16WRevision of IEEE Std 386 Working Group and ANSI C119.2 Subcommittee on Separable Insulated Connectors had the following membership: Frank M. Stepniak, Chair Harry Hayes, Vice Chair Vince A. Baclawski, Secretariat Darren Barnett Ed Bradley Dave Britton Thomas Champion Jack Cherry Russ Dantzler Robert Gear Stan Heyer Trung Hiu Stan Howell Roy Jazowski Gael Kennedy Albert Kong Glenn Luzzi John Makal Greg Mastoras Rachel Mosier Denis Pratt Ewell (Tim) Robeson Roger Schoneman Bruce Shattuck John Spence Wes Spencer Greg Stano Tim Wall Dennis Wedam Carl Wentzel Sanford Yoder Tiebin Zhao v Copyright © 2007 IEEE. All rights reserved. -,-,- vi Copyright © 2007 IEEE. All rights reserved. The following members of the individual balloting committee voted on this standard. Balloters may have voted for approval, disapproval, or abstention. Marcos Andrade Kenneth Bow Harvey Bowles Vern Buchholz William Byrd Thomas Callsen Mary Capelli-Schellpfeffer Michael Clodfeder R. Daubert Larry Davis Frank Denbrock John Densley Mark Drabkin John DuPont Dana Dufield Guru Dutt Dhingra Stephen Early Marcia Eblen Gary Engmann Michael Faulkenberry Jorge Fernandez-Daher Marcel Fortin Robert Fulcomer Robert Gear David Gilmer Ron Greenthaler Randall Groves Richie Harp Jeffrey Hartenberger Steven Hensley Dennis Horwitz David Jackson Edward Jankowich Robert Keefe Gael R. Kennedy Yuri Khersonsky Hermann Koch Edwin Kramer Gregory Luri Glenn Luzzi John Makal James Medek Steven Meiners John Merando G. Michel Shantanu Nandi Gary L. Nissen Neal Parker Michael Pehosh Dave Singleton Michael Smalley James Smith Gregory Stano Brian Steinbrecher Frank M. Stepniak John Teixeira William Thue Carl Wall Daniel Ward Lee Welch Carl Wentzel James Wilson Jan Zawadzki Tiebin Zhao Donald W. Zipse When the IEEE-SA Standards Board approved this standard on 15 September 2006, it had the following membership: Steve M. Mills, Chair Richard H. Hulett, Vice Chair Don Wright, Past Chair Judith Gorman, Secretary Mark D. Bowman Dennis B. Brophy William R. Goldbach Arnold M. Greenspan Robert M. Grow Joanna N. Guenin Julian Forster* Mark S. Halpin Kenneth S. Hanus William B. Hopf Joseph L. Koepfinger* David J. Law Daleep C. Mohla T. W. Olsen Glenn Parsons Ronald C. Petersen Tom A. Prevost Greg Ratta Robby Robson Anne-Marie Sahazizian Virginia Sulzberger Malcolm V. Thaden Richard L. Townsend Walter Weigel Howard L. Wolfman *Member Emeritus Also included are the following nonvoting IEEE-SA Standards Board liaisons: Satish K. Aggarwal, NRC Representative Richard DeBlasio, DOE Representative Alan H. Cookson, NIST Representative Catherine Berger IEEE Standards Editor William Ash IEEE Standards Program Manager, Technical Program Development vi Copyright © 2007 IEEE. All rights reserved. Contents 1. Scope 1 2. Normative references 1 3. Definitions 2 4. Service conditions 6 4.1 Usual service conditions 6 4.2 Unusual service conditions 6 5. Ratings and characteristics. 7 5.1 Voltage ratings and characteristics 7 5.2 Current ratings and characteristics. 7 6. Construction . 8 6.1 Identification 8 6.2 Operating means 9 6.3 Shielding 9 6.4 Interchangeability 9 6.5 Test point. 10 6.6 Hold-down bails 10 6.7 Bushing well stud torque withstand. 10 6.8 Thermal cycle withstand 10 7. Testing 27 7.1 Production tests 27 7.2 Design tests 27 7.3 Test conditions. 27 7.4 Partial discharge test 27 7.5 Dielectric tests. 28 7.6 Short-time current test. 29 7.7 Switching test 29 7.8 Fault-closure test 32 7.9 Current-cycling test for uninsulated components of 600 A connectors. 32 7.10 Current-cycling test for 200 A insulated connectors . 33 7.11 Current-cycling test for 600 A insulated connectors . 36 7.12 Accelerated sealing life test. 37 7.13 Cable pull-out test (tensile strength) 37 7.14 Operating-force test. 37 7.15 Operating-eye test 38 7.16 Test point cap test 38 7.17 Test point tests. 38 7.18 Shielding test. 39 7.19 Bushing well stud torque test. 39 7.20 Thermal cycle withstand test. 39 -,-,- vii Copyright © 2007 IEEE. All rights reserved. Annex A (informative) Trial use guide for testing of separable connector lubricants 41 A.1 Test for lubricants used on separable insulated connector interfaces . 41 A.2 Operating force test. 41 A.3 Accelerated aging test. 41 A.4 Dielectric tests 42 A.5 Switching test 42 A.6 Compatibility 42 A.7 Physical properties 42 Annex B (informative) Operating interface ac withstand test 44 Annex C (informative) Bibliography 46 1 Copyright © 2007 IEEE. All rights reserved. IEEE Standard for Separable Insulated Connector Systems for Power Distribution Systems Above 600 V 1. Scope This standard establishes definitions, service conditions, ratings, interchangeable construction features, and tests for loadbreak and deadbreak separable insulated connector systems rated above 600 V, 600 A or less, for use on power distribution systems. 2. Normative references The following referenced documents are indispensable for the application of this document. For undated references, the latest edition of the referenced document (including any amendments or corrigenda) applies. ANSI C119.4, Electrical Connectors-Connectors for Use between Aluminum-to-Aluminum or Aluminum- to-Copper Bare Overhead Connectors.1 ANSI/ASQC Z1.4, Sampling Procedures and Tables for Inspection by Attributes. ASTM F467, Standard Specification for Nonferrous Nuts for General Use.2 IEEE Std 4, IEEE Standard Techniques for High-Voltage Testing.3, 4 IEEE Std 592, IEEE Standard for Exposed Semiconducting Shields on High-Voltage Cable Joints and Separable Insulated Connectors. 1 ANSI publications are available from the Sales Department, American National Standards Institute, 25 West 43rd Street, 4th Floor, New York, NY 10036, USA (http:/www.ansi.org/). 2 ASTM publications are available from the American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, USA (http:/www.astm.org/). 3 IEEE publications are available from the Institute of Electrical and Electronics Engineers, 445 Hoes Lane, Piscataway, NJ 08855- 1331, USA (http:/standards.ieee.org/). 4 The IEEE standards or products referred to in this clause are trademarks of the Institute of Electrical and Electronics Engineers, Inc. -,-,- IEEE Std 386-2006 IEEE Standard for Separable Insulated Connector Systems for Power Distribution Systems Above 600 V 2 Copyright © 2007 IEEE. All rights reserved. 3. Definitions For the purposes of this standard, the following terms and definitions apply. The Authoritative Dictionary of IEEE Standards Terms B75 should be referenced for terms not defined in this clause. The following definitions are the intended meanings of terms used in this standard or associated with separable insulated connector systems. Figure 1, Figure 2, Figure 16, Figure 17, and Figure 18 show typical components of separable insulated connectors. The term connector as used in this standard means separable insulated connector. 3.1 arc quenching rod: An ablative material added to the end of a probe that serves to pressurize and cool the arc and help deionize the arc by products while approaching current zero, assisting in the arc interruption process. 3.2 arc ring: Material inserted between the metal contact area of a loadbreak probe and the arc quenching rod for the purpose of limiting arc damage to the probe metal. NOTESee Figure 8 and Figure 9.6 3.3 bushing extender: A connector that provides two in-line elbow interfaces. 3.4 bushing insert: A connector component intended for insertion into a bushing well designed for use with another connector component, such as an elbow. NOTESee Figure 1. 3.5 bushing well: An apparatus bushing having a cavity for insertion of connector component, such as a bushing insert. NOTESee Figure 1. 3.6 bushing well plug: An accessory device designed to electrically insulate, electrically shield, and mechanically seal a bushing well. 3.7 cable adapter: A connector component that fits over the insulation of the cable increasing its diameter to properly mate with the cable accessory. 3.8 compression lug: The internal current carrying part of an elbow designed for the transition of the current path from the cable conductor to the connector. 3.9 connecting plug: A connector that provides two in-line bushing interfaces. 3.10 continuous current rating: The designated rms alternating or direct current that the connector can carry continuously under specified conditions. 5 The numbers in brackets correspond to those of the bibliography in Annex C. 6 Notes in text, tables, and figures of a standard are given for information only and do not contain requirements needed to implement this standard. -,-,- IEEE Std 386-2006 IEEE Standard for Separable Insulated Connector Systems for Power Distribution Systems Above 600 V 3 Copyright © 2007 IEEE. All rights reserved. 3.11 dead-front bushing arrester: An insulated and shielded surge protective device with a bushing operating interface. 3.12 dead-front elbow arrester: An insulated and shielded surge protective device with an elbow operating interface. 3.13 elbow: A connector component for connecting a power cable to a bushing, so designed that when assembled with the bushing, the axes of the cable and bushing are perpendicular. NOTESee Figure 1 and Figure 2. 3.14 feed-thru bushing insert: An accessory device with two electrically interconnected bushing interfaces that can be installed into a bushing well. 3.15 feed-thru parking bushing: An accessory device with two electrically interconnected bushing interfaces that can be installed into a parking stand. 3.16 grounding parking bushing: An accessory device de
