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1、AS/NZS 3008.1.1:1998 Australian/New Zealand Standard Electrical installations Selection of cables Part 1.1: Cables for alternating voltages up to and including 0.6/1 kVTypical Australian installation conditions Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 14 Apr 2008 AS/NZS 3008.1.1:1998 This Joint
2、Australian/New Zealand Standard was prepared by Joint Technical Committee EL/1, Wiring Rules. It was approved on behalf of the Council of Standards Australia on 17 November1997 and on behalf of the Council of StandardsNewZealandon14 November1997.Itwaspublishedon 5 February 1998. The following intere
3、sts are represented on Committee EL/1: The Association of Consulting Engineers, Australia Australian Building Codes Board Australian Electrical and Electronic Manufacturers Association Canterbury Manufacturers Association New Zealand Communications Electrical Plumbing Union, Australia DAS Interiors
4、Australia Electrical Contractors Association, Qld Electrical Contractors Association of New Zealand Electricity Supply Association of Australia Institute of Electrical Inspectors, Australia Institution of Engineers, Australia Insurance Council of Australia Ministry of Commerce, New Zealand National
5、Electrical Contractors Association of Australia Regulatory authorities (electrical), Australia Telstra Corporation, Australia Review of Standards. To keep abreast of progress in industry, Joint Australian/ New Zealand Standards are subject to periodic review and are kept up to date by the issue of a
6、mendments or new editions as necessary. It is important therefore that Standards users ensure that they are in possession of the latest edition, and any amendments thereto. Full details of all Joint Standards and related publications will be found in the Standards Australia and Standards New Zealand
7、 Catalogue of Publications; this information is supplemented each month by the magazines The Australian Standard and Standards New Zealand, which subscribing members receive, and which give details of new publications, new editions and amendments, and of withdrawn Standards. Suggestions for improvem
8、ents to Joint Standards, addressed to the head office of either Standards Australia or Standards New Zealand, are welcomed. Notification of any inaccuracy or ambiguity found in a Joint Australian/New Zealand Standard should be made without delay in order that the matter may be investigated and appro
9、priate action taken. This Standard was issued in draft form for comment as DR 96408. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 14 Apr 2008 AS/NZS 3008.1.1:1998 Australian/New Zealand Standard Electrical installations Selection of cables Part 1.1: Cables for alternating voltages up to and includin
10、g 0.6/1 kVTypical Australian installation conditions Originated in Australia as AS 3008.1.1 1984. Final Australian edition AS 3008.1 1989. Jointly revised and redesignated AS/NZS 3008.1.1:1998. PUBLISHED JOINTLY BY: STANDARDS AUSTRALIA 1 The Crescent, Homebush NSW 2140 Australia STANDARDS NEW ZEALAN
11、D Level 10, Radio New ZealandHouse, 155 The Terrace, Wellington 6001 New Zealand ISBN 0 7337 1709 8 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 14 Apr 2008 AS/NZS 3008.1.1:19982 PREFACE This Standard was prepared by the Joint Standards Australia/Standards New Zealand CommitteeEL/1,WiringRules,tosup
12、ersedeAS3008.11989,Electrical installationsSelectionof cables, Part 1: Cables for alternatingvoltages up to and including0.6/1 kV. This Standard(Part 1.1) is applicableto Australian installation conditions where the nominal ambient air and soil temperatures are 40C and 25C, respectively. Part 1.2 is
13、 applicableto New Zealand installationconditionswhere the nominal air and soil temperatures are 30C and 15C respectively. Each Part is a complete Standard and requires no reference to the other. Part 2 will deal with cables for use with alternating voltages over 1 kV. The objective of the Standard i
14、s to specify current-carrying capacity, voltage drop and short-circuit temperature rise of cables, to provide a method of selection for those types of electric cables and methods of installation which are in common use at working voltages up to and including 0.6/1 kV at 50 Hz a.c. This Standard diff
15、ers from the 1989 edition as follows: (a)Cables with a conductor operating temperature of 110C have been added. (b)Aluminium sheathed MIMS cables have been deleted, tables for copper sheathed MIMS cables have been revised and their sheath operating temperature has been changed to 100C. (c)Paper insu
16、lated cables have been deleted. (d)Voltage drop tables for tinned copper conductors have been deleted. (e)References have been added for aerial bundled cables. (f)The tables apply to Australian installation conditions. (g)Tables have been recalculated to IEC 287, Electric cablesCalculationof the cur
17、rent rating (all Parts), based on conductor, insulation and sheath dimensions in the relevant Australian/New Zealand Standards and Australian ambient temperatures, except as detailed in Clause 3.1.2. The current ratings for insulated aerial cables are generally based on IEC 287 and on methods propos
18、ed by Dr V.T. Morgan of the CSIRO. The work carried out by Dr V.T. Morgan was sponsored by ESAA and AEEMA. In the preparation of this Standard, reference was made to IEC 287 and acknowledgment is made of the assistance received from that source. Statements expressed in mandatory terms in notes to ta
19、bles and figures are deemed to be requirements of this Standard. 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. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 14 Apr 2008 3
20、AS/NZS 3008.1.1:1998 CONTENTS Page FOREWORD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 SECTION 1 SCOPE AND GENERAL 1.1SCOPE AND APPLICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 1.2ALTERNATIVE SPECIFICATIONS . . . .
21、. . . . . . . . . . . . . . . . . . . . . . .9 1.3REFERENCED AND RELATED DOCUMENTS . . . . . . . . . . . . . . . . . . .10 1.4DEFINITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 SECTION 2 CABLE SELECTION PROCEDURE 2.1GENERAL. . . . . . . . . . . . . .
22、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 2.2SELECTION PROCESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 2.3DETERMINATIONOFMINIMUMCABLESIZEBASEDON CURRENT-CARRYING CAPACITY CONSIDERATIONS . . . . . . . . . . .12 2.4DETERMINATIONOFMINIMUMCABLESIZE
23、BASEDON VOLTAGE DROP CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . .13 2.5DETERMINATION OF MINIMUM CABLE SIZE BASED ON THE SHORT-CIRCUIT TEMPERATURE CONSIDERATIONS . . . . . . . . . . . .14 SECTION 3 CURRENT-CARRYING CAPACITY 3.1RATINGS . . . . . . . . . . . . . . . . . . . . . . .
24、. . . . . . . . . . . . . . . . . . . . . . .15 3.2TYPES OF CONDUCTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 3.3TYPES OF CABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 3.4INSTALLATION CONDITIONS . . . . . . . . . . . . . . . . . .
25、. . . . . . . . . . . .18 3.5EXTERNAL INFLUENCES ON CABLES . . . . . . . . . . . . . . . . . . . . . . .21 SECTION 4 VOLTAGE DROP 4.1GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65 4.2DETERMINATION OF VOLTAGE DROP FROM MILLIVOLTS PER AMPERE METRE .
26、. . . . . . . . . . . . . . . . . . . . . . . . .65 4.3DETERMINATION OF VOLTAGE DROP FROM CIRCUIT IMPEDANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66 4.4DETERMINATION OF VOLTAGE DROP FROM CABLE OPERATING TEMPERATURE . . . . . . . . . . . . . . . . . . . .
27、 . . . . . . . . . . .67 4.5DETERMINATION OF VOLTAGE DROP FROM LOAD POWER FACTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68 4.6DETERMINATION OF VOLTAGE DROP IN UNBALANCED MULTIPHASE CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70
28、SECTION 5 SHORT-CIRCUIT PERFORMANCE 5.1GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90 5.2FACTORS GOVERNING THE APPLICATION OF THE TEMPERATURE LIMITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90 5.3CALCULATION OF PERMISSIB
29、LE SHORT-CIRCUIT CURRENTS . . . .91 5.4INFLUENCE OF METHOD OF INSTALLATION . . . . . . . . . . . . . . . . . .91 5.5MAXIMUM PERMISSIBLE SHORT-CIRCUIT TEMPERATURES. . . . .92 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 14 Apr 2008 AS/NZS 3008.1.1:19984 Page APPENDICES AEXAMPLES ON THE SELECTION OF C
30、ABLES TO SATISFY CURRENT-CARRYING CAPACITY, VOLTAGE DROP AND SHORT-CIRCUIT PERFORMANCE REQUIREMENTS . . . . . . . . . . . . . . .94 BRECOMMENDED CIRCUIT CONFIGURATIONSFOR THE INSTALLATION OF SINGLE-CORE CABLES IN PARALLEL . . . . . . . . .103 LIST OF TABLES 1LIMITING TEMPERATURES FOR INSULATED CABLE
31、S . . . . . . . . . . . .16 2(1)SCHEDULE OF INSTALLATION METHODS FOR CABLES DEEMED TO HAVE THE SAME CURRENT-CARRYING CAPACITY AND CROSS-REFERENCES TO APPLICABLE DERATING TABLESUNENCLOSED IN AIR . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28 2(2)SCHEDULE OF INSTALLATION METHODS FOR CABLE
32、S DEEMED TO HAVE THE SAME CURRENT-CARRYING CAPACITY AND CROSS-REFERENCES TO APPLICABLE DERATING TABLES ENCLOSED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 2(3)SCHEDULE OF INSTALLATION METHODS FOR CABLES DEEMED TO HAVE THE SAME CURRENT-CARRYING CAPAC
33、ITY AND CROSS-REFERENCES TO APPLICABLE DERATING TABLESBURIED DIRECT IN THE GROUND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31 2(4)SCHEDULE OF INSTALLATION METHODS FOR CABLES DEEMED TO HAVE THE SAME CURRENT-CARRYING CAPACITY AND CROSS-REFERENCES TO APPLICABLE DERATING TABL
34、ES ENCLOSED IN UNDERGROUND PIPES AND DUCTS. . . . . . . . . . . . . .32 3CURRENT-CARRYING CAPACITIES OF TWO SINGLE-CORE 0.6/1 kV SHEATHED AND UNSHEATHED NON-ARMOURED CABLES WITH V-75, V-90, V-90HT, HFI-75-TP OR HFI-90-TP INSULATION . . . .33 4CURRENT-CARRYING CAPACITIES OF TWO SINGLE-CORE 0.6/1 kV S
35、HEATHED AND UNSHEATHED NON-ARMOURED CABLES WITH X-90, X-HF-90, R-EP-90, R-CPE-90, R-HF-90 OR R-CSP-90 INSULATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35 5CURRENT-CARRYING CAPACITIES OF TWO SINGLE-CORE 0.6/1 kV SHEATHED AND UNSHEATHED NON-ARMOURED CABL
36、ES WITH R-HF-110, R-E-110 OR X-HF-110 INSULATION . . . . . . . . . . . . . .36 6CURRENT-CARRYING CAPACITIES OF THREE SINGLE-CORE 0.6/1 kV SHEATHED AND UNSHEATHED NON-ARMOURED CABLES WITH V-75, V-90, V-90HT, HFI-75-TP OR HFI-90-TP INSULATION . . . .37 7CURRENT-CARRYING CAPACITIES OF THREE SINGLE-CORE
37、 0.6/1 kV SHEATHED AND UNSHEATHED NON-ARMOURED CABLES WITH X-90, X-HF-90, R-EP-90, R-CPE-90, R-HF-90 OR R-CSP-90 INSULATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38 8CURRENT-CARRYING CAPACITIES OF THREE SINGLE-CORE 0.6/1 kV SHEATHED AND UNSHEATHED NON-
38、ARMOURED CABLES WITH R-HF-110, R-E-110 OR X-HF-110 INSULATION . . . . . . . . . . . . . .39 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 14 Apr 2008 5AS/NZS 3008.1.1:1998 Page 9CURRENT-CARRYING CAPACITIES OF TWO-CORE 0.6/1 kV INSULATED AND SHEATHED (INCLUDING NEUTRAL SCREENED) CABLES WITH OR WITHOUT
39、 EARTH CONDUCTOR, ARMOURED OR NON-ARMOURED CABLES WITH V-75, V-90, HFI-75-TP OR HFI-90-TP INSULATION . . . . . . . . . . . . . . . . . . . . . . . . .40 10CURRENT-CARRYING CAPACITIES OF TWO-CORE 0.6/1 kV INSULATED AND SHEATHED (INCLUDING NEUTRAL SCREENED) CABLES WITH OR WITHOUT EARTH CONDUCTOR, ARMO
40、URED OR NON-ARMOURED CABLES WITH X-90, X-HF-90, R-EP-90, R-CPE-90, R-HF-90 OR R-CSP-90 INSULATION . . . . . . . . . . . . . . . . . . . . . . . . . . .41 11CURRENT-CARRYING CAPACITIES OF TWO-CORE 0.6/1 kV INSULATED AND SHEATHED (INCLUDING NEUTRAL SCREENED) CABLES WITH OR WITHOUT EARTH CONDUCTOR, ARM
41、OURED OR NON-ARMOURED CABLES WITH R-HF-110, R-E-110 OR X-HF-110 INSULATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42 12CURRENT-CARRYING CAPACITIES OF THREE-CORE AND FOUR-CORE 0.6/1 kV INSULATED AND SHEATHED (INCLUDING NEUTRAL SCREENED) CABLES WITH OR WI
42、THOUT EARTH CONDUCTOR, ARMOURED OR NON-ARMOURED CABLES WITH V-75, V-90, HFI-75-TP OR HFI-90-TP INSULATION . . . . . . . . . . . . . . . .43 13CURRENT-CARRYING CAPACITIES OF THREE-CORE AND FOUR-CORE 0.6/1 kV INSULATED AND SHEATHED (INCLUDING NEUTRAL SCREENED) CABLES WITH OR WITHOUT EARTH CONDUCTOR, A
43、RMOURED OR NON-ARMOURED CABLES WITH X-90, X-HF-90, R-EP-90, R-CPE-90, R-HF-90 OR R-CSP-90 INSULATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44 14CURRENT-CARRYING CAPACITIES OF THREE-CORE AND FOUR-CORE 0.6/1 kV INSULATED AND SHEATHED (INCLUDING NEUTRAL S
44、CREENED) CABLES WITH OR WITHOUT EARTH CONDUCTOR, ARMOURED OR NON-ARMOURED CABLES WITH R-HF-110, R-E-110 OR X-HF-110 INSULATION . . . . . . . . . . . . . . . . . . .45 15CURRENT-CARRYING CAPACITIES OF 0.6/1 kV FLEXIBLE CABLES . .46 16CURRENT-CARRYING CAPACITIES OF FLEXIBLE CORDS . . . . . . . . .47 1
45、7CURRENT-CARRYING CAPACITIES OF CABLES AND FLEXIBLE CORDS WITH R-S-150, TYPE 150 FIBROUS OR 150 TYPE PTFE INSULATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48 18CURRENT-CARRYING CAPACITIES OF BARE SINGLE-CORE MINERAL-INSULATED COPPER-SHEATHED CABLES WIT
46、H COPPER CONDUCTORSSHEATH TEMPERATURE: 100C . . . . . . . . . . . . . . . .49 19CURRENT-CARRYING CAPACITIES OF BARE MULTICORE MINERAL-INSULATED COPPER-SHEATHED CABLES WITH COPPER CONDUCTORSSHEATH TEMPERATURE: 100C . . . . . . . . .50 20CURRENT-CARRYING CAPACITIES OF AERIAL CABLES WITH COPPER CONDUCT
47、ORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51 21CURRENT-CARRYING CAPACITIES OF AERIAL AND ABC CABLES WITH ALUMINIUM CONDUCTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . .53 22DERATING FACTORS FOR BUNCHED CIRCUITS OF SINGLE-CORE OR MULTICORE CABLES IN AIR O
48、R IN WIRING ENCLOSURES . . . . .55 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 14 Apr 2008 AS/NZS 3008.1.1:19986 Page 23DERATING FACTORS FOR CIRCUITS OF SINGLE-CORE CABLES INSTALLED IN TRAYS, RACKS, CLEATS, OR OTHER SUPPORTS IN AIR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
49、. . . . . . . . . . . . . . .56 24DERATING FACTORS FOR CIRCUITS OF MULTICORE CABLES INSTALLED IN TRAYS, RACKS, CLEATS OR OTHER SUPPORTS IN AIR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58 25(1)DERATING FACTORS FOR GROUPS OF CIRCUITS OF SINGLE-CORE OR MULTICORE CABLES BURIED DIRECT IN THE GROUND SINGLE-CORE CABLES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60 25(2)DERATING FACTORS FOR GROUPS OF CIRCUITS OF SINGLE-CORE OR MULTICORE CABLES BURIED DIRECT IN THE GROUND MULTICORE CABLE