1、g44g40g40g40g3g54g87g71g3g20g20g23g21g140g16g21g19g19g28g11g53g72g89g76g86g76g82g81g3g82g73g44g40g40g40g3g54g87g71g3g20g20g23g21g161995g12g3g44g40g40g40g3g42g88g76g71g72g3g73g82g85g3g87g75g72g3g54g72g79g72g70g87g76g82g81g15g3g55g72g86g87g76g81g74g15g36g83g83g79g76g70g68g87g76g82g81g15g3g68g81g71g3g4
2、4g81g86g87g68g79g79g68g87g76g82g81g3g82g73g38g68g69g79g72g86g3g75g68g89g76g81g74g3g53g68g71g76g68g79g16g48g82g76g86g87g88g85g72g37g68g85g85g76g72g85g86g3g68g81g71g18g82g85g3g47g82g81g74g76g87g88g71g76g81g68g79g3g58g68g87g72g85g37g79g82g70g78g76g81g74g44g40g40g40g3g51g82g90g72g85g3g9g3g40g81g72g85g74
3、g92g3g54g82g70g76g72g87g92g3g54g83g82g81g86g82g85g72g71g3g69g92g3g87g75g72g44g81g86g88g79g68g87g72g71g3g38g82g81g71g88g70g87g82g85g86g3g38g82g80g80g76g87g87g72g72g44g40g40g40g22g3g51g68g85g78g3g36g89g72g81g88g72g3g49g72g90g3g60g82g85g78g15g3g49g60g3g20g19g19g20g25g16g24g28g28g26g15g3g56g54g36g3g3g21
4、6g3g48g68g85g70g75g3g21g19g20g19g20g20g23g21g55g48IEEE Std 1142-2009 (Revision of IEEE Std 1142-1995)IEEE Guide for the Selection, Testing, Application, and Installation of Cables having Radial-Moisture Barriers and/or Longitudinal Water BlockingSponsorInsulated Conductors Committee of the IEEE Powe
5、r +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. iv Copyright 2010 IEEE. All rights reserved. IntroductionThis introduction is not part of IEEE Std 1142-2009, IEEE Guide for the S
6、election, Testing, Application, and Installation of Cables having Radial-Moisture Barriers and/or Longitudinal Water Blocking. This guide is an update of previously published IEEE Guide 1142-1995. When that guide was circulated for a renewal ballot it was found that many revisions were needed to ref
7、lect changes in technology and to incorporate additional types of cables along with other means of preventing moisture/chemical ingress into cable cores. The objective still remains to supply complete information for utility and industrial cable users on ways and means to protect cables from the del
8、eterious effects of moisture and chemical ingress to cable insulation as well as protection from unfavorable environmental and installation conditions. Much information has been derived from reported global experience as well as the many technical papers that have been presented in recent years on t
9、hese topics. The bibliography has been updated to cover many new informative references. This guide will be most useful to those users who wish to maximize cable life and minimize cable faults that cause interruptions in critical circuits. Notice to users Laws and regulations Users of these document
10、s should consult all applicable laws and regulations. Compliance with the provisions of this standard does not imply compliance to any applicable regulatory requirements. Implementers of the standard are responsible for observing or referring to the applicable regulatory requirements. IEEE does not,
11、 by the publication of its standards, intend to urge action that is not in compliance with applicable laws, and these documents may not be construed as doing so. Copyrights This document is copyrighted by the IEEE. It is made available for a wide variety of both public and private uses. These includ
12、e both use, by reference, in laws and regulations, and use in private self-regulation, standardization, and the promotion of engineering practices and methods. By making this document available for use and adoption by public authorities and private users, the IEEE does not waive any rights in copyri
13、ght to this document. Updating of IEEE documents Users of IEEE standards should be aware that these documents may be superseded at any time by the issuance of new editions or may be amended from time to time through the issuance of amendments, corrigenda, or errata. An official IEEE document at any
14、point in time consists of the current edition of the document together with any amendments, corrigenda, or errata then in effect. In order to determine whether a given document is the current edition and whether it has been amended through the issuance of amendments, corrigenda, or errata, visit the
15、 IEEE Standards Association web site at http:/ieeexplore.ieee.org/xpl/standards.jsp, or contact the IEEE at the address listed previously. For more information about the IEEE Standards Association or the IEEE standards development process, visit the IEEE-SA web site at http:/standards.ieee.org.Errat
16、a 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
17、:/standards.ieee.org/reading/ieee/interp/ index.html. Patents Attention is called to the possibility that implementation of this guide may require use of subject matter covered by patent rights. By publication of this guide, no position is taken with respect to the existence or validity of any paten
18、t rights in connection therewith. The IEEE is not responsible for identifying Essential Patent Claims for which a license may be required, for conducting inquiries into the legal validity or scope of Patents Claims or determining whether any licensing terms or conditions provided in connection with
19、submission of a Letter of Assurance, if any, or in any licensing agreements are reasonable or non-discriminatory. Users of this guide are expressly advised that determination of the validity of any patent rights, and the risk of infringement of such rights, is entirely their own responsibility. Furt
20、her information may be obtained from the IEEE Standards Association. Participants At the time this guide was submitted to the IEEE-SA Standards Board for approval, the Moisture Impervious Cables Working Group had the following membership: Joseph Snow, Chair Ajit Hiranandani, Vice Chair Kenneth Bow,
21、Technical Editor Michael Bayer Kent Brown Luanne Cantrell Paul Caronia David Cavassa Mo Dawud John Hans Frank Kuchta Daniel Mainstruck Pierre Mirebeau Kenneth Prier Candelario Saldivar Hon Suen Thomas Wilki At the time this draft guide was completed, the following individuals contributed information
22、 of use in the preparation of this guide: Victor Banks Steve Czupryna Donald Voltz Armando Rios v Copyright 2010 IEEE. All rights reserved. The following members of the invidual balloting committee voted on this guide. Balloters may have voted for approval, disapproval, or abstention. John R. Barker
23、 Michael Bayer William Bloethe Kenneth Bow James A. Braun Chris Brooks Kent Brown Thomas Campbell John Cancelosi Weijen Chen Robert Christman F. Denbrock John Densley Gary L. Donner Gary Engmann Todd Goyette Steven Graham Randall Groves Jeffrey Hartenberger Lee Herron Lauri Hiivala A. S. Jones Tanuj
24、 Khandelwal Chad Kiger Robert Konnik Jim Kulchisky Chung-Yiu Lam Benjamin Lenz Gerald Liskom G. Luri Arturo Maldonado John Merando Gary Michel Daleep Mohla Michael S. Newman Serge Pelissou Resuali Robert Michael Roberts Bartien Sayogo Gil Shultz James E. Smith Jerry Smith Joseph Snow Gregory Stano G
25、ary Stoedter David Tepen John Vergis Martin Von Herrmann Waldemar Von Miller Carl Wall Thomas Wilki Dawn Zhao When the IEEE-SA Standards Board approved this guide on 10 December 2009, it had the following membership: Robert M. Grow, Chair Thomas Prevost, Vice Chair Steve M. Mills, Past Chair Judith
26、Gorman, Secretary John Barr Karen Bartleson Victor Berman Ted Burse Richard Deblasio Andy Drozd Mark Epstein Alexander Gelman Jim Hughes Richard H. Hulett Young Kyun Kim Joseph L. Koepfinger* John Kulick David J. Law Ted Olsen Glenn Parsons Ronald C. Petersen Narayanan Ramachandran Jon Walter Rosdah
27、l Sam Sciacca *Member Emeritus Also included are the following nonvoting IEEE-SA Standards Board liaisons: Satish Aggarwal, NRC Representative Richard DeBlasio, DOE Representative Michael Janezic, NIST Representative Michelle Turner IEEE Standards Program Manager, Document Development Soo H. Kim IEE
28、E Standards Program Manager, Technical Program Development vi Copyright 2010 IEEE. All rights reserved. Contents 1. Overview 1 1.1 Scope . 1 1.2 Purpose 2 1.3 Development history 2 1.4 Utilization and trends. 2 2. Normative references 3 3. Definitions 3 4. Description of cable designs utilizing radi
29、al-moisture barriers and longitudinal water blocking. 5 4.1 Description of cables with radial-moisture barriers. 5 4.2 Description of power cables with longitudinal water blocking . 6 5. Materials for moisture barrier and water-blocking functions . 8 5.1 Description 8 5.2 Plastic-coated metals for r
30、adial designs for all voltage classes8 5.3 Adhesives for sealing the overlap 11 5.4 Properties and testing of coated metals 11 5.5 Synthetic water blocking tapes, yarns and powders for longitudinal water blocking for all voltage classes 12 5.6 Selection of jacketing materials. 15 6. Application of r
31、adial-moisture barriers and longitudinal water blocking to low-voltage cables 16 6.1 General 16 6.2 Bonded and metallic sheaths as radial-moisture barriers for low-voltage power, control and instrument cable. 16 6.3 Metallic sheaths as moisture barriers for low-voltage cable 18 6.4 Longitudinal wate
32、r blocking low-voltage cable. 18 6.5 Mechanical tests for low-voltage cables 19 6.6 Developmental tests for low-voltage cable with a bonded sheath . 20 6.7 Life testing of low-voltage cables with a bonded sheath . 21 7. Application of radial-moisture barriers and longitudinal water blocking to mediu
33、m-voltage cables. 21 7.1 General 21 7.2 Bonded sheaths as radial-moisture barriers for medium-voltage cable . 21 7.3 Un-bonded laminate sheath with longitudinally folded metallic tape with sealed overlap 23 7.4 Metallic sheaths as radial-moisture barriers 23 7.5 Water blocking medium-voltage cable 2
34、3 7.6 Methods of controlling thermal expansion of bonded sheath medium-voltage cable 24 7.7 Developmental mechanical tests 25 7.8 Developmental short-circuit test 27 7.9 Developmental test for bonded sheaths on medium-voltage cable 28 7.10 Life testing of medium-voltage cable with a bonded sheath 28
35、 8. Application of radial-moisture barriers and longitudinal water blocking to high and extra-high voltage cables 29 8.1 Bonded sheaths as radial-moisture barriers for high and extra-high voltage cable 29 8.2 Metallic sheaths as radial-moisture barriers in high-voltage cable 31 8.3 Water blocking hi
36、gh-voltage cable 32 8.4 Methods for expansion control of bonded or un-bonded sheaths on high-voltage cable. 34 vii Copyright 2010 IEEE. All rights reserved. 8.5 Tests for high-voltage cables with bonded sheaths 35 8.6 Developmental and sample test for longitudinal moisture transmission 39 8.7 Discus
37、sion of developmental tests for high-voltage cable. 41 8.8 Life testing of high-voltage cables with bonded sheaths . 42 9. Sample tests for measuring the integrity of bonded sheaths for all voltage classes 42 9.1 General 42 9.2 Sample tests common to all voltage classes for measuring the performance
38、 of the bonded sheath . 42 9.3 Developmental tests for radial-water tightness common to all voltage classes . 44 9.4 Special developmental tests for all voltage classes 45 10. Developmental tests common to MV and EHV power cables with radial-moisture barriers and longitudinal water blocking 46 10.1
39、General 46 10.2 Developmental tests for prototype MV, HV, and EHV cables with moisture barrier sheaths. 47 10.3 Developmental electrical tests of the insulation system 48 10.4 Developmental test for thermo-mechanical performance 49 11. Sample tests common to all voltage classes . 50 12. Routine test
40、s common to all voltage classes. 51 13. Installation of moisture impervious cables . 51 13.1 General 51 13.2 Terminating and jointing . 53 13.3 Grounding 54 Annex A (informative) Bibliography . 56 A.1 Technical papers relating to design of moisture barrier cables. 56 A.2 Technical papers relating to
41、 materials and accessories for moisture barrier cables 58 A.3 Technical papers relating to testing of moisture barrier cables. 59 A.4 Technical papers relating to low-voltage moisture barrier cables. 59 A.5 Technical papers relating to medium-voltage moisture barrier cables 59 A.6 Technical papers r
42、elating to high-voltage moisture barrier cables 59 A.7 Specification references for cable with moisture barriers. 60 viii Copyright 2010 IEEE. All rights reserved. IEEE Guide for the Selection, Testing, Application, and Installation of Cables having Radial-Moisture Barriers and/or Longitudinal Water
43、 Blocking IMPORTANT NOTICE: This standard is not intended to ensure safety, security, health, or environmental protection in all circumstances. Implementers of the standard are responsible for determining appropriate safety, security, environmental, and health practices or regulatory requirements. T
44、his IEEE document is made available for use subject to important notices and legal disclaimers. These notices and disclaimers appear in all publications containing this document and may be found under the heading “Important Notice” or “Important Notices and Disclaimers Concerning IEEE Documents.” Th
45、ey can also be obtained on request from IEEE or viewed at http:/standards.ieee.org/IPR/disclaimers.html. 1. Overview 1.1 Scope This guide provides cable manufacturers and users with extensive information on the design, testing, application, and installation of low, medium, and high-voltage power cab
46、les, as well as communication, control and instrument cables that make use of metal-plastic laminates as radial-moisture barriers. This guide addresses additional means of protecting cables from the entrance of moisture through the use of polymeric super absorbent materials for longitudinal water bl
47、ocking of stranded conductors and other spaces within cables. The alternate use of extruded metal sheaths or bare, longitudinally applied, metallic tapes with sealed seams will likewise be addressed. 1 Copyright 2010 IEEE. All rights reserved. IEEE Std 1142-2009 IEEE Guide for the Selection, Testing
48、, Application, and Installation of Cables having Raidal-Moisture Barriers and/or Longitudinal Water Blocking 1.2 Purpose While metallic sheaths, such as lead and aluminum, have been effective in past years as barriers to moisture, their relative cost, environmental concerns along with installation d
49、ifficulties have led to the search for alternatives. Alternatively, thin metal-plastic foils are finding application as moisture barriers in low, medium, high, and extra-high voltage power cables. Aluminum, copper, or lead substrates are coated with polymeric coatings on one or both sides and adhesively bonded to the cable jacket or over sheath. The tapes are usually applied longitudinally, with an overlap, or seam, that is adhesively sealed over the core of the cable and under the jacket. In addition, other measures have been taken to block the longitudinal movement of moi
