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1、 AS 1154.32009 Australian Standard Insulator and conductor fittings for overhead power lines Part 3: Performance and general requirements for helical fittings AS 1154.32009 This Australian Standard was prepared by Committee EL-010, Overhead Lines. It was approved on behalf of the Council of Standard
2、s Australia on 4 November 2008. This Standard was published on 12 February 2009. The following are represented on Committee EL-010: Australasian Railway Association Australian Chamber of Commerce and Industry Australian Electrical and Electronic Manufacturers Association Australian Porcelain Insulat
3、ors Association Electricity Engineers Association, New Zealand Energy Networks Association This Standard was issued in draft form for comment as DR 07132. Standards Australia wishes to acknowledge the participation of the expert individuals that contributed to the development of this Standard throug
4、h their representation on the Committee and through the public comment period. Keeping Standards up-to-date Keeping Standards up-to-date Australian Standards are living documents that reflect progress in science, technology and systems. To maintain their currency, all Standards are periodically revi
5、ewed, and new editions are published. Between editions, amendments may be issued. Standards may also be withdrawn. It is important that readers assure themselves they are using a current Standard, which should include any amendments that may have been published since the Standard was published. Deta
6、iled information about Australian Standards, drafts, amendments and new projects can be found by visiting www.standards.org.auwww.standards.org.au Standards Australia welcomes suggestions for improvements, and encourages readers to notify us immediately of any apparent inaccuracies or ambiguities. C
7、ontact us via email at mailstandards.org.aumailstandards.org.au, or write to Standards Australia, GPO Box 476, Sydney, NSW 2001. The Standard is downloaded from Standard Sharing AS 1154.32009 Australian Standard Insulator and conductor fittings for overhead power lines Part 3: Performance and gener
8、al requirements for helical fittings Originated as AS 1154.31982. Previous edition 1985. Third edition 2009. COPYRIGHT Standards Australia 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
9、the written permission of the publisher. Published by Standards Australia GPO Box 476, Sydney, NSW 2001, Australia ISBN 0 7337 9008 9 AS 1154.32009 2 PREFACE This Standard was prepared by the Standards Australia Committee EL-010, Overhead Lines, to supersede AS 1154.31985. This Standard is one of a
10、two-part series covering insulator and conductor fittings for overhead lines as follows: Part 1: Performance, material, general requirements and dimensions, which combines the former Part 1 and Part 2. Part 3: Performance and general requirements for helical fittings (this Standard). The nature of h
11、elical fittings is such that they may be used for applications other than those for which they were specifically designed. In this Standard, only the primary function is considered and tests appropriate to that function are stipulated. The use of fittings for purposes other than those for which they
12、 were designed is a matter for negotiation between the purchaser and supplier. For the purpose of this Standard, helical fittings are separated into two main groups, those for bare conductors and those for insulated conductors. Helical fittings for bare conductors are further subdivided into three c
13、lasses as follows: (a) Fittings that act as anchors to attach conductors under tension to structures and fittings used for joining two conductors that will be used under tension. (b) Fittings that grip a conductor and resist longitudinal slip and attach the conductor to an insulator set or other sup
14、port device. (c) Fittings intended to protect a conductor from the electrical and/or mechanical stresses to which it may be subjected in service. This class also includes fittings intended for the repair of damaged conductors, to restore full electrical and mechanical integrity. The Standard is down
15、loaded from Standard Sharing 3 AS 1154.32009 CONTENTS Page SECTION 1 SCOPE AND GENERAL 1.1 SCOPE 4 1.2 REFERENCED AND RELATED DOCUMENTS 4 1.3 DEFINITIONS 5 1.4 GENERAL REQUIREMENTS .6 1.5 GENERAL REQUIREMENTS FOR TESTS.6 1.6 VERIFICATION OF DIMENSIONS 7 1.7 COLOUR CODES FOR HELICAL FITTINGS.7 SECTI
16、ON 2 ANCHOR AND TENSION FITTINGS 2.1 ITEMS TO BE SPECIFIED BY THE PURCHASER OR DECLARED BY THE MANUFACTURER 9 2.2 TYPE TEST FOR GLUE. 10 2.3 MECHANICAL STRENGTH TYPE TESTS 10 2.4 ELECTRICAL TYPE TESTS . 12 2.5 BATCH TESTS. 14 SECTION 3 SUSPENSION AND SUPPORT FITTINGS 3.1 SPECIFICATION DETAILSITEMS T
17、O BE SPECIFIED BY THE PURCHASER OR DECLARED BY THE MANUFACTURER 15 3.2 MECHANICAL STRENGTH TYPE TESTS . 16 3.3 MECHANICAL STRENGTH AND OPTICAL TYPE TESTS FOR FITTINGS FOR OPGW CABLES. 20 3.4 ELECTRICAL TYPE TESTSHORT-TIME CURRENT TEST. 20 3.5 BATCH TESTS. 21 SECTION 4 REPAIR AND PROTECTIVE FITTINGS
18、4.1 ITEMS TO BE SPECIFIED BY THE PURCHASER OR DECLARED BY THE MANUFACTURER 22 4.2 REPAIR FITTINGS 23 4.3 PROTECTIVE FITTINGS. 23 4.4 BATCH TESTS. 24 AS 1154.32009 4 Standards Australia www.standards.org.au STANDARDS AUSTRALIA Australian Standard Insulator and conductor fittings for overhead power li
19、nes Part 3: Performance and general requirements for helical fittings 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 performance and general requirements for helical fittings for use on overhead electric power lines. Helical fittings for overhead lines, including OPG
20、W and ADSS and stays, consist of sets of rods, each of which has been formed into an open helix having normally the same direction of lay as the outer strands of the conductor to which it is applied. In installation, the rods are wrapped in accordance with the manufacturers recommendations around a
21、conductor, cable or stay having a diameter somewhat greater than the internal diameter of the fitting. 1.2 REFERENCED AND RELATED DOCUMENTS 1.2.1 Referenced documents The following documents are referred to in this Standard: AS 1154 Insulator and conductor fittings for overhead power lines 1154.1 Pa
22、rt 1: Performance, material, general requirements and dimensions 1214 Hot-dip galvanized coatings on threaded fasteners (ISO metric coarse thread series) 1852 International electrotechnical vocabulary AS/NZS 2947 InsulatorsPorcelain and glass for overhead power linesVoltages greater than 1000 V a.c.
23、 2947.1 Part 1: Test methodsInsulator units 4534 Zinc and zinc/aluminium-alloy coatings on steel wire 1.2.2 Related documents This Standard may also require reference to the following documents: AS 1111 ISO metric hexagon commercial bolts and screwsProduct grade C (all parts) 1112 ISO metric hexagon
24、 nuts (all parts) 1222 Steel conductors and staysBare overhead 1222.1 Part 1: Galvanized (SC/GZ) 1531 ConductorsBare overheadAluminium and aluminium alloy 1997 Plain limit gauges (metric series) 3607 ConductorsBare overhead, aluminium and aluminium alloySteel reinforced The Standard is downloaded fr
25、om Standard Sharing 5 AS 1154.32009 www.standards.org.au Standards Australia 1.3 DEFINITIONS For the purpose of this Standard, the definitions given in AS/NZS 2947.1, AS 1852 and those below apply. 1.3.1 All dielectric self-supporting (ADSS) cable A non-metallic, all dielectric optical fibre cable
26、that is physically and operationally separate from the power conductors and that can generally support itself. 1.3.2 Anchor fittings Fittings capable of anchoring or terminating conductors or cables. 1.3.3 Batch tests Tests intended to verify the materials and workmanship of fittings that are perfor
27、med on fittings taken at random from batches offered for inspection. 1.3.4 Failing load The load at which a fitting fails during the prescribed test conditions. 1.3.5 Nominated holding tension (NHT) The test load that a support fitting is required to withstand without slip of the conductor. (These v
28、alues are stated by the manufacturer or specified by the purchaser). 1.3.6 Optical ground wire (OPGW) A stranded metallic conductor incorporating optical fibres that has the dual performance function of a conventional earth wire with telecommunication capabilities. 1.3.7 Repair and protective fittin
29、gs Fittings attached to a conductor to repair or protect it. 1.3.8 Slip 1.3.8.1 Suspension fittings Any continuous movement of the conductor relative to the fitting in excess of 3 mm. The elongation of the cable due to the test itself, or due to the movement of the fitting rods as they tighten, or d
30、ue to unequal bending of some of the rods, is not regarded as slippage. 1.3.8.2 Tension fittings Any movement of the conductor relative to the fitting in excess of 3 mm with a corresponding decrease of force. The elongation of the cable due to the test itself, or due to the movement of the fitting r
31、ods as they tighten, or due to unequal bending of some of the rods, is not regarded as slippage. 1.3.9 Specified minimum failing load (MFL) The minimum failing load specified by the purchaser or declared by the supplier at which mechanical failure will not take place. 1.3.10 Support fittings Conduct
32、or fittings other than tension or non-tension fittings that grip a conductor and attach to a string insulator unit, an insulator fitting or another support. 1.3.11 Tension fittings Fittings capable of joining or splicing conductors. AS 1154.32009 6 Standards Australia www.standards.org.au 1.3.12 Typ
33、e tests Tests intended to validate design characteristics. They are normally performed once only and repeated only when the design or the material of the fitting is changed. 1.4 GENERAL REQUIREMENTS 1.4.1 Defects The fittings shall be free from defects that would be likely to cause them to be unsati
34、sfactory in service. 1.4.2 Design Fittings shall be designed so that they comply with the test requirements of the relevant Section of this Standard and so that the effects of vibration are minimized, both on the conductor and the fitting. 1.4.3 Materials Fittings may be made from any material or co
35、mbination of materials acceptable to the purchaser that enables the fitting to reach its design strength capability. Components shall be compatible with other components and the conductor with which they will be in contact. NOTE: The purchasers attention is drawn to any relevant statutory regulation
36、s governing the nominated holding tension, failing load and nominated conductor tension. Plastic materials shall be adequately protected from the effects of exposure to solar radiation. 1.4.4 Surface finish The fittings shall be designed, manufactured and finished to avoid sharp radii of curvature,
37、ridges and protrusions that might cause damage to the conductor in service. 1.4.5 Protection against corrosion All parts of helical fittings shall either be inherently resistant to atmospheric corrosion or be suitably protected against corrosion, both during storage and in service. All ferrous metal
38、 parts that may be exposed to the atmosphere in service, except those made of stainless steel, shall be protected by hot-dip galvanizing in accordance with AS 1214, or AS/NZS 4534 Class W10, or by other agreed means. 1.5 GENERAL REQUIREMENTS FOR TESTS 1.5.1 Type tests Test certificates giving the re
39、sults of the appropriate type tests, performed on no fewer than three fittings identical in all essential details with those to be supplied, shall be regarded as evidence of compliance with this Standard. These tests shall be repeated only if specified by the purchaser. Type test certificates shall
40、specify the overall dimensional details of the fittings. Full details of the conductor used in the test shall be given, including whether it was ungreased, partly greased or wholly greased. NOTE: Other evidence of compliance may be agreed upon by negotiation between the purchaser and the supplier. 1
41、.5.2 Batch tests 1.5.2.1 Sampling Samples for batch tests shall be selected in accordance with Table 1.1. The Standard is downloaded from Standard Sharing 7 AS 1154.32009 www.standards.org.au Standards Australia TABLE 1.1 SAMPLING FOR BATCH TESTS Number in the lot (N)* Number of samples 1 100 To be
42、 specified by the purchaser 100 300 5 300 1200 10 1200 3000 14 3000 10 000 20 10 000 0.002 N rounded up to the nearest whole number * N is the number of fittings or devices offered for inspection. 1.5.2.2 Acceptance If only one fitting fails to comply with any of the batch tests as prescribed, a new
43、 quantity equal to twice the first quantity shall be tested. The testing shall comprise the test in which failure occurred. If two or more fittings fail to comply with the prescribed batch tests, the complete batch shall be deemed not to comply with this Standard. 1.6 VERIFICATION OF DIMENSIONS It s
44、hall be verified that the test samples are in accordance with the relevant drawings and requirements agreed between the purchaser and the supplier. 1.7 COLOUR CODES FOR HELICAL FITTINGS 1.7.1 Colour codes for conductors The centre/crossover marks should be made in the identifying colour listed in Ta
45、ble 1.2. The colour is determined by the conductor wire diameter only, and should be applied to all strandings and all conductor types. However, all fittings for SC/AC conductors shall have an additional single green band placed midway along one leg of the fitting. 1.7.2 Colour codes for insulator n
46、eck diameters Where a fitting is designed to fit on or around an insulator, a colour code denoting the insulator neck diameter for which the fitting is suitable shall be placed approximately 50 mm from the end of one leg of the fitting. The identification colour shall be as listed in Table 1.3. AS 1
47、154.32009 8 Standards Australia www.standards.org.au TABLE 1.2 COLOUR CODES FOR CONDUCTORS Conductor wire diameter mm Colour 1.00 Black 1.25 Green 1.75 Purple 2.00 Yellow 2.25 Brown 2.50 Blue 2.75 White 3.00 Red 3.25 Orange 3.50 Purple 3.75 Black 4.25 Brown 4.50 Green 4.75 Blue NOTES: 1 For ACSR, wh
48、ere the diameter of the steel wire is smaller than the diameter of the aluminium wire, the colour code should refer to the diameter of the aluminium wire. 2 Where a fitting is suitable for two conductor sizes, it bears both colours. 3 Refer to the manufacturer for other details not covered above. TA
49、BLE 1.3 COLOUR CODES FOR INSULATOR NECK DIAMETERS Insulator neck diameter mm Colour 54 Red 76 Yellow 112 Blue The Standard is downloaded from Standard Sharing 9 AS 1154.32009 www.standards.org.au Standards Australia S E C T I O N 2 A N C H O R A N D T E N S I O N F I T T I N G S 2.1 ITEMS TO BE SPECIFIED BY THE PURCHASER OR DECLARED BY THE MANUFACTURER 2.1.1 Conductors For each anchor and