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1、AS/NZS 4026:2001 Australian/New Zealand Standard Electric cablesFor underground residential distribution systems AS/NZS 4026 Licensed to UEA Electrical Pty Ltd on 06 Mar 2007. 1 user personal user licence only. Storage, distribution or use on network prohibited. AS/NZS 4026:2001 This Joint Australia
2、n/New Zealand Standard was prepared by Joint Technical Committee EL-003, Electric Wires and Cables. It was approved on behalf of the Council of Standards Australia on 18 April 2001 and on behalf of the Council of Standards New Zealand on 27 April 2001. It was published on 28 May 2001. The following
3、interests are represented on Committee EL-003: Australasian Railway Association Australian Electrical and Electronic Manufacturers Association Australian Industry Group Department of Defence, Australia Department of Mineral Resources, N.S.W. Electrical Contractors Association of New Zealand Electric
4、ity Supply Association of Australia Institution of Engineers, Australia Ministry of Commerce, New Zealand National Electrical & Communications Association New Zealand Manufacturers Federation Regulatory Authorities (Electrical) Testing Interests (Australia) Keeping Standards up-to-date Standards are
5、 living documents which reflect progress in science, technology and systems. To maintain their currency, all Standards are periodically reviewed, and new editions are published. Between editions, amendments may be issued. Standards may also be withdrawn. It is important that readers assure themselve
6、s they are using a current Standard, which should include any amendments which may have been published since the Standard was purchased. Detailed information about joint Australian/New Zealand Standards can be found by visiting the Standards Australia web site at .au or Standards New Zealand web sit
7、e at www.standards.co.nz and looking up the relevant Standard in the on-line catalogue. Alternatively, both organizations publish an annual printed Catalogue with full details of all current Standards. For more frequent listings or notification of revisions, amendments and withdrawals, Standards Aus
8、tralia and Standards New Zealand offer a number of update options. For information about these services, users should contact their respective national Standards organization. We also welcome suggestions for improvement in our Standards, and especially encourage readers to notify us immediately of a
9、ny apparent inaccuracies or ambiguities. Please address your comments to the Chief Executive of either Standards Australia International or Standards New Zealand at the address shown on the back cover. This Standard was issued in draft form for comment as DR 98043. Licensed to UEA Electrical Pty Ltd
10、 on 06 Mar 2007. 1 user personal user licence only. Storage, distribution or use on network prohibited. AS/NZS 4026:2001 Australian/New Zealand Standard Electric cablesFor underground residential distribution systems First published as AS 40261992. Jointly revised and designated AS/NZS 4026:2001. CO
11、PYRIGHT Standards Australia/Standards New Zealand All rights are reserved. No part of this work may be reproduced or copied in any form or by any means, electronic or mechanical, including photocopying, without the written permission of the publisher. Jointly published by Standards Australia Interna
12、tional Ltd, GPO Box 5420, Sydney, NSW 2001 and Standards New Zealand, Private Bag 2439, Wellington 6020 ISBN 0 7337 3900 8 Licensed to UEA Electrical Pty Ltd on 06 Mar 2007. 1 user personal user licence only. Storage, distribution or use on network prohibited. AS/NZS 4026:20012 PREFACE This Standard
13、 was prepared by the Joint Standards Australia/Standards New Zealand Committee EL-003, Electric Wires and Cables, to supersede AS 40261992 and NZS/AS 4026-1992, Electric cablesFor underground residential distribution systems. The Standard applies to a range of cables recommended for use by electrici
14、ty distributors in underground residential distribution (URD) systems at working voltages of 0.6/1 (1.2) kV, 6.35/11 (12) kV and 12.7/22 (24) kV. For reasons of standardization and rationalization, this Standard provides for the construction, dimensions and test requirements of only a limited range
15、of cables. The requirements of this Standard are compatible with and complementary to those for the range of cables covered in AS/NZS 1429.1, AS 1026 and AS/NZS 5000.1. This Standard differs from the previous edition in the following significant ways: (a) This Standard has been published as a Joint
16、Australian/New Zealand Standard. (b) For 6.35/11 (12) kV distribution network cables an additional 300 mm2 conductor size has been included in the rationalized range. (c) The terms light duty and heavy duty in reference to metallic screens for cables complying with AS/NZS 1429.1 have been replaced b
17、y nominal short circuit ratings of 3 kA and 10 kA respectively. (d) For XLPE insulated 0.6/1 (1.2) kV distribution cables, separate rationalized ranges of conductor sizes have been included for Australia and New Zealand. (e) For XLPE insulated 0.6/1 (1.2) kV service cables, an additional 50 mm2 cond
18、uctor size has been included in the rationalized range. (f) An additional high voltage Type Test on the XLPE insulated cores of the 0.6/1 (1.2) kV service cables has been introduced. (g) Additional maximum continuous current rating data has been included to provide for installation at different soil
19、 temperatures. The term informative has been used in this Standard to define the application of the appendix to which it applies. An informative appendix is only for information and guidance. Licensed to UEA Electrical Pty Ltd on 06 Mar 2007. 1 user personal user licence only. Storage, distribution
20、or use on network prohibited. AS/NZS 4026:20013 CONTENTS Page SECTION 1SCOPE AND GENERAL 1.1SCOPE.5 1.2APPLICATION .5 1.3REFERENCED DOCUMENTS.5 SECTION 2XLPE INSULATED 6.35/11(12)kV AND 12.7/22(24)kV DISTRIBUTION NETWORK CABLES 2.1SCOPE OF SECTION .7 2.2CONSTRUCTION.7 2.3CONDUCTORS 7 2.4CONDUCTOR SC
21、REEN.7 2.5INSULATION.7 2.6INSULATION SCREEN .7 2.7METALLIC SCREEN.7 2.8FILLERS AND BINDER TAPES8 2.9NON-METALLIC SHEATH.8 2.10 MARKING OF CABLE.9 2.11 PREPARATION FOR DELIVERY.9 2.12 TESTS.9 SECTION 3PAPER INSULATED 6.35/11(12)kV AND 12.7/22(24)kV DISTRIBUTION NETWORK CABLES 3.1SCOPE OF SECTION .10
22、3.2CONSTRUCTION.10 3.3CONDUCTORS 10 3.4IMPREGNATION.10 3.5METAL SHEATH.10 3.6NON-METALLIC SHEATH.11 3.7MARKING OF CABLE.11 3.8MARKING OF DRUMS .11 3.9PREPARATION FOR DELIVERY.12 3.10 TESTS.12 SECTION 4XLPE INSULATED 0.6/1(1.2)kV DISTRIBUTION CABLES 4.1SCOPE OF SECTION .13 4.2CONSTRUCTION.13 4.3CONDU
23、CTORS 13 4.4INSULATION.13 4.5LAY-UP OF CORES.13 4.6FILLERS AND BINDER TAPES13 4.7NON-METALLIC SHEATH.14 4.8MARKING OF CABLE.14 4.9PREPARATION FOR DELIVERY.14 4.10 TESTS.14 Licensed to UEA Electrical Pty Ltd on 06 Mar 2007. 1 user personal user licence only. Storage, distribution or use on network pr
24、ohibited. AS/NZS 4026:20014 Page SECTION 5XLPE INSULATED 0.6/1(1.2)kV SERVICE CABLES 5.1SCOPE OF SECTION .15 5.2CONSTRUCTION.15 5.3CONDUCTORS 15 5.4INSULATION.15 5.5LAY-UP OF CORES.16 5.6FILLERS AND BINDER TAPES16 5.7NON-METALLIC COVERING 16 5.8CABLE CROSS-SECTION.16 5.9MARKING OF CABLE.16 5.10 PREP
25、ARATION FOR DELIVERY.17 5.11 TESTS.17 APPENDICES ACABLE DATA18 BPURCHASING GUIDELINES25 CSCREEN DETAILS FOR XLPE INSULATED 6.35/11 (12) kV AND 12.7/22 (24) kV DISTRIBUTION NETWORK CABLES26 Licensed to UEA Electrical Pty Ltd on 06 Mar 2007. 1 user personal user licence only. Storage, distribution or
26、use on network prohibited. AS/NZS 4026:2001 COPYRIGHT 5 STANDARDS AUSTRALIA/STANDARDS NEW ZEALAND Australian/New Zealand Standard Electric cablesFor underground residential distribution systems S E C T I O N 1 S C O P E A N D G E N E R A L 1.1 SCOPE This Standard specifies the construction of a rati
27、onalized range of cables used by electricity supply authorities in underground residential distribution (URD) systems. NOTES: 1 Cable data and recommendations to assist in the selection of the appropriate cables are provided in Appendix A. 2 Guidelines on information that should be supplied with enq
28、uiries or orders are provided in Appendix B. 1.2 APPLICATION For the purposes of this Standard, the cables shall comply with the requirements of the following Sections, as appropriate: Section 2XLPE insulated 6.35/11 (12) kV and 12.7/22 (24) kV cables for use in high voltage distribution networks Se
29、ction 3Paper insulated 6.35/11 (12) kV and 12.7/22 (24) kV cables for use in high voltage distribution networks Section 4XLPE insulated 0.6/1 (1.2) kV cables for use in low voltage distribution networks Section 5XLPE insulated 0.6/1 (1.2) kV cables for use as low voltage service cables In addition t
30、o complying with the requirements of the particular Section of this Standard, cables shall comply with the relevant requirements of the following Standards: Section 2AS/NZS 1429.1, AS 1125 Section 3AS 1026, AS 1125 Section 4AS/NZS 5000.1, AS 1125 Section 5AS/NZS 5000.1, AS 1125 1.3 REFERENCED DOCUME
31、NTS The following documents are referred to in this Standard: AS 1026Electric cablesImpregnated paper insulatedWorking voltages up to and including 33 kV 1125Conductors in insulated electric cables and flexible cords Licensed to UEA Electrical Pty Ltd on 06 Mar 2007. 1 user personal user licence onl
32、y. Storage, distribution or use on network prohibited. AS/NZS 4026:2001 COPYRIGHT 6 AS/NZS 1429Electric cablesPolymeric insulated 1429.1Part 1:For working voltages 1.9/3.3 (3.6) kV up to and including 19/33 (36) kV 1477PVC pipes and fittings for pressure applications 1660Test methods for electric ca
33、bles, cords and conductors 3008.1Electrical installationsSelection of cablesCables for alternating voltages up to and including 0.6/1 kV 3100Approval and test specificationGeneral requirements for electrical equipment 5000Electric cablesPolymeric insulated 5000.1Part 1:For working voltages up to and
34、 including 0.6/1 kV IEC 60287Electric cablesCalculation of the current rating 60986Short-circuit temperature limits of electric cables with rated voltages from 6 kV (Um = 7.2 kV) up to 30 kV (Um = 36 kV) ERA Report F/T 195 A basis for short-circuit ratings for paper-insulated lead- sheathed cables u
35、p to 11 kV Licensed to UEA Electrical Pty Ltd on 06 Mar 2007. 1 user personal user licence only. Storage, distribution or use on network prohibited. AS/NZS 4026:2001 COPYRIGHT 7 S E C T I O N 2 X L P E I N S U L A T E D 6 . 3 5 / 1 1 ( 1 2 ) k V A N D 1 2 . 7 / 2 2 ( 2 4 ) k V D I S T R I B U T I O
36、N N E T W O R K C A B L E S 2.1 SCOPE OF SECTION This Section specifies the construction, dimensions and tests for a selected range of unarmoured XLPE insulated three-core high voltage distribution network cables. Except where otherwise specified, the cables shall comply with the requirements of AS/
37、NZS 1429.1. 2.2 CONSTRUCTION The cable shall comprise three XLPE insulated, individually screened cores. The laid-up core assembly shall be composite PVC/HDPE sheathed. Refer to cable cross-section illustrated in Figure 1. 2.3 CONDUCTORS The conductors shall be stranded circular compacted aluminium.
38、 The conductor shall be selected from the rationalized range of sizes, namely 35 mm2, 95 mm2, 185 mm2 and 240 mm2. For 6.35/11 (12) kV cables an additional 300 mm2 size has been included in the range. 2.4 CONDUCTOR SCREEN The cable shall have an extruded crosslinked semi-conductive conductor screen.
39、 2.5 INSULATION The insulation shall be XLPE. 2.6 INSULATION SCREEN 2.6.1 Material The cores shall have an extruded crosslinked semi-conductive insulation screen only. 2.6.2 Requirements for stripping insulation screen The extruded semi-conductive insulation screen shall be suitable for hand-strippi
40、ng without preconditioning. 2.7 METALLIC SCREEN 2.7.1 Material and application The cores shall be individually screened with plain annealed copper wires. The nominal diameter of screen wires shall be not less than 0.85 mm. The screen wires of each core shall be continuously in contact with the scree
41、n wires of the other two cores throughout the length of the cable. 2.7.2 Electrical requirements The metallic screen shall be selected from the rationalized range of nominal one second short circuit ratings, namely 3 kA and 10 kA. NOTE: Screen details are provided in Appendix C. Licensed to UEA Elec
42、trical Pty Ltd on 06 Mar 2007. 1 user personal user licence only. Storage, distribution or use on network prohibited. AS/NZS 4026:2001 COPYRIGHT 8 2.8 FILLERS AND BINDER TAPES To ensure continuous contact between the screen wires of the individual cores throughout the length of the cable, there shal
43、l be no central filler. A binder tape shall be helically applied over the laid-up cores. FIGURE 1 XLPE INSULATED 6.35/11 (12) kV AND 12.7/22 (24) kV DISTRIBUTION NETWORK CABLES 2.9 NON-METALLIC SHEATH 2.9.1 Material The sheath shall be a composite sheath consisting of a combination of an inner layer
44、 of 5V-90 PVC and an outer layer of high density polyethylene (HDPE). The outer layer shall be UV stabilized by the addition of a minimum of 2% carbon black. 2.9.2 Colour The inner layer shall be orange and the outer layer shall be black. 2.9.3 Thickness The average thickness of each layer of the co
45、mposite sheath, determined by the method specified in AS/NZS 1660, shall be not less than the thickness specified in Table 2.1, and the minimum thickness of each layer at any point shall not fall below the specified thickness by more than 15 percent of the specified thickness (ts) plus 0.1 mm, i.e.
46、minimum thickness = 0.85ts - 0.10 mm. Licensed to UEA Electrical Pty Ltd on 06 Mar 2007. 1 user personal user licence only. Storage, distribution or use on network prohibited. AS/NZS 4026:2001 COPYRIGHT 9 TABLE 2.1 COMPOSITE SHEATH DIMENSIONS Average thickness of non-metallic sheath 6.35/11 (12) kV
47、cables12.7/22 (24) kV cables PVCHDPEPVCHDPE Nominal area of core conductor mm2 mmmmmmmm 35 95 185 1.1 1.3 1.5 1.2 1.4 1.5 1.3 1.5 1.6 1.4 1.5 1.7 240 300 1.6 1.6 1.6 1.7 1.7 1.8 2.10 MARKING OF CABLE 2.10.1 Cable identification The cable sheath shall have identification and metre marking in accordan
48、ce with AS/NZS 1429.1. 2.11 PREPARATION FOR DELIVERY Both ends of each drum length of cable shall be sealed to prevent the ingress of moisture. This may be achieved by the use of adhesive-lined heat-shrink caps or other means specified by the purchaser. 2.12 TESTS Cables shall be tested in accordanc
49、e with the requirements specified in AS/NZS 1429.1. Licensed to UEA Electrical Pty Ltd on 06 Mar 2007. 1 user personal user licence only. Storage, distribution or use on network prohibited. AS/NZS 4026:2001 COPYRIGHT 10 S E C T I O N 3 P A P E R I N S U L A T E D 6 . 3 5 / 1 1 ( 1 2 ) k V A N D 1 2 . 7 / 2 2 ( 2 4 ) k V D I S T R I B U T I O N N E T W O R K C A B L E S 3.1 SCOPE OF SECTION This Section specifies the construction, dimensions and tests for a selected range of unarmoured paper insulated, three-core, scre