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1、 AS/NZS 3133:2008 (Incorporating Amendment No. 1) Australian/New Zealand Standard Approval and test specification Air-break switches AS/NZS 3133:2008 AS/NZS 3133:2008 This Joint Australian/New Zealand Standard was prepared by Joint Technical Committee EL-004, Electrical Accessories. It was approved
2、on behalf of the Council of Standards Australia on 22 August 2008 and on behalf of the Council of Standards New Zealand on 21 August 2008. This Standard was published on 21 October 2008. The following are represented on Committee EL-004: Australasian Railway Association Australian Chamber of Commerc
3、e and Industry Australian Industry Group Australian Information Industry Association Canterbury Manufacturers Association New Zealand Consumer Electronics Suppliers Association Consumers Federation of Australia Electrical Compliance Testing Association Electrical Regulatory Authorities Council Inter
4、national Accreditation New Zealand Ministry of Consumer Affairs (New Zealand) National Electrical and Communications Association Plastics Industry Pipe Association of Australia Testing Interests (Australia) Keeping Standards up-to-date Standards are living documents which reflect progress in science
5、, 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 Standards may also be withdrawn.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 themselves they are using a current Standard, which should i
6、nclude 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 Web Shop at .au or Standards New Zealand web site at www.standards.co.nz and looking up the relevant Standard
7、 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 Australia and Standards New Zealand offer a number of update opt
8、ions. 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 any apparent inaccuracies or ambiguities. Please address your
9、comments to the Chief Executive of either Standards Australia or Standards New Zealand at the address shown on the back cover. This Standard was issued in draft form for comment as DR 08040. AS/NZS 3133:2008 (Incorporating Amendment No. 1) Australian/New Zealand Standard Approval and test specificat
10、ion Air-break switches COPYRIGHT 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 St
11、andards Australia, GPO Box 476, Sydney, NSW 2001 and Standards New Zealand, Private Bag 2439, Wellington 6020 ISBN 0 7337 8927 7 Originated as in Australia as AS C1331941 and AS C1131947. Previous edition AS/NZS 3133:2003. Sixth edition 2008. Reissued incorporating Amendment No. 1 (April 2009). AS/N
12、ZS 3133:2008 2 2 PREFACE This Standard was prepared by the Joint Standards Australia/Standards New Zealand Committee EL-004, Electrical Accessories, to supersede AS/NZS 3133:2003, Approval and test specificationAir break switches, from the date of publication. This Standard incorporates Amendment No
13、. 1 (April 2009). The changes required by the Amendment are indicated in the text by a marginal bar and amendment number against the clause, note, table, figure or part thereof affected. The objective of this Standard is to provide Australian and New Zealand electrical industries (including manufact
14、urers, test laboratories, installers and regulators) with electrical safety requirements and test methods for air-break switches. This Standard does not apply to cord-line switches within the scope of AS/NZS 3127, Approval and test specificationCord-line switches. This Standard is one of a series of
15、 approval and test specifications to be read in conjunction with AS/NZS 3100, Approval and test specificationGeneral requirements for electrical equipment. The purpose of this series is to outline the conditions that must be met to secure approval for the sale and use of electrical accessories in Au
16、stralia and New Zealand. Only safety matters and related conditions are covered. This Standard was revised to introduce editorial changes and the following technical changes: (a) Requirements for switches for motors. (b) Reference to AS/NZS 61058.1 for switches for appliances. (c) Fluorescent lamp l
17、oading requirements and marking. (d) Instructions and marking for field-installed insulation. (e) Mounting of switches during testing. (f) Insulation resistance test. (g) High voltage test no. 1. (h) IP rating test. (i) The endurance test for fluorescent lamp loads. This Standard does not include al
18、l the necessary provisions of a contract. The terms normative and informative have been used in this Standard to define the application of the appendix to which they apply. A normative appendix is an integral part of a Standard, whereas an informative appendix is only for information and guidance. A
19、S/NZS 3133:20083 CONTENTS Page 1 SCOPE AND REFERENCED DOCUMENTS .4 2 DEFINITIONS4 3 COMPLIANCE WITH STANDARDS .7 4 ENCLOSURE.7 5 INSULATING MATERIALS.7 6 FORM AND ACTION OF CONTACTS 7 7 SEQUENCE OF OPERATION.8 8 ACTUATING MECHANISM.8 9 EARTHING FACILITIES 8 10 PROHIBITED ARRANGEMENTS8 11 FLUORESCENT
20、 LAMP LOAD RATING .8 12 MARKING .8 13 TESTS 10 APPENDICES A VARIATIONS BETWEEN AS/NZS 3133:2003, INCLUDING AMENDMENT 1 AND THIS EDITION 22 B ADDITIONAL REQUIREMENTS FOR ISOLATING SWITCHES. 23 AS/NZS 3133:2008 COPYRIGHT 4 STANDARDS AUSTRALIA/STANDARDS NEW ZEALAND Australian/New Zealand Standard Appro
21、val and test specificationAir-break switches 1 SCOPE AND REFERENCED DOCUMENTS 1.1 Scope This Standard applies to air-break switches having current ratings not exceeding 125 A for use in electrical circuits and equipment operating at low voltage but not exceeding 500 V and intended for household or s
22、imilar use and for use in indoor and outdoor electrical installations. This Standard does not apply to cord-line switches as defined in AS/NZS 3127. NOTES: 1Appendix A lists variations between this edition of AS/NZS 3133 and the 2003 edition (including Amendment 1). 2See Clause 3.3 for other relevan
23、t Standards covering switches that may affect the application of this Standard. 1.2 Referenced documents The following documents are referred to in this Standard: AS 1931 High-voltage test techniques 1931.1 Part 1: General definitions and test requirements 60529 Degrees of protection provided by enc
24、losures (IP Code) AS/NZS 3100 Approval and test specificationGeneral requirements for electrical equipment 3121 Approval and test specificationInsulating mouldings 3127 Approval and test specificationCord-line switches 3947 Low-voltage switchgear and controlgear 3947.3 Part 3: Switches, disconnector
25、s, switch-disconnectors and fuse-combination units 60335 Household and similar electrical appliancesSafety 60335.1 Part 1: General requirements (IEC 60335-1: Ed. 4.2, MOD) 61058 Switches for appliances 61058.1 Part 1: General requirements (IEC 61058-1: Ed. 3.1 (2000), MOD) IEC 60669 Switches for hou
26、sehold and similar fixed-electrical installations (all parts) 2 DEFINITIONS For the purpose of this Standard, the definitions below apply: 2.1 Air-break switch A mechanical device for making and breaking in air a circuit carrying a load current. For the purpose of this Standard, an air-break switch
27、is referred to as a switch. AS/NZS 3133:2008 COPYRIGHT 5 2.2 Flush switch A switch for mounting behind or incorporated with a switch plate, the back of the plate being flush with the surface of the wall or enclosure. 2.3 Intermediate switch A switch for controlling a circuit where more than two posi
28、tions of control are required. Such a switch generally occupies an intermediate position between the other switches it is used in conjunction with. 2.4 Isolating switch A switch that when in the open position complies with the requirements specified for the isolating function. 2.5 Number of ways (of
29、 a switch) The number of conducting paths (outputs) provided for each pole. Ways may also be called throws. 2.6 Operation The transfer of moving contact(s) from one position to an adjacent position. 2.7 Operating cycle A succession of operations from one position to another and back to the first pos
30、ition through all other positions, if any. 2.8 Pole(s) The number of electrically separated inputs. 2.9 Recovery voltage The r.m.s. value of the normal frequency voltage, or d.c. voltage, as appropriate, that exists across the terminals of each pole of the switch after final arc extinction. 2.10 Sur
31、face switch A switch provided with a seating surface so that when mounted it projects wholly above the surface on which it is mounted. 2.11 Switch arrangements Switch arrangements as shown in Figure 1. 2.12 Switch assemblies An assembly of switches that can be configured by the installer into a sing
32、le face plate. 2.13 Wall switch A switch primarily intended for mounting on, or in, a wall or related part of a building structure. AS/NZS 3133:2008 COPYRIGHT 6 FIGURE 1 SOME COMMON SWITCH CIRCUITS AS/NZS 3133:2008 COPYRIGHT 7 3 COMPLIANCE WITH STANDARDS 3.1 General requirements of AS/NZS 3100 This
33、Standard shall be read in conjunction with AS/NZS 3100 and the appropriate provisions of that Standard shall apply to the construction of the switch and the insulation and safeguarding of parts that normally carry current. 3.2 Specific requirements of this Standard A switch shall be deemed to comply
34、 with this Standard only if it complies with all the appropriate requirements of this Standard and passes the tests specified herein. Additional requirements for isolating switches are provided in Appendix B. 3.3 Requirements of other Standards 3.3.1 AS/NZS 3947.3 utilization categories Switches hav
35、ing current ratings greater than 63 A but not exceeding 300 A that comply with AS/NZS 3947.3 for utilization categories AC-21, AC-22, AC-23, DC-21, DC-22 and DC-23 shall be deemed to comply with the requirements of this Standard. 3.3.2 IEC 60669 series Switches complying with the IEC 60669 series ar
36、e deemed to comply with the requirements of this Standard. Switches for motors shall, in addition to the requirements in IEC 60669, pass the motor control test (M-rating) herein (see Clause 13.13). 3.3.3 AS/NZS 61058.1 switches Switches intended to be incorporated in, on or with an appliance may com
37、ply with AS/NZS 61058.1 in lieu of this Standard. 4 ENCLOSURE Any enclosure provided for a switch shall be of robust construction and designed to prevent the emission of arcs, flame, molten metal or hot particles. Any insulating material used in the construction of the enclosure shall be not inferio
38、r to the class of material specified in AS/NZS 3121 in relation to the temperature at which the material is required to operate when the switch is tested in accordance with Clause 13.6. Where an IP rating is claimed for a switch, it shall comply with Clause 13.12. 5 INSULATING MATERIALS Except for c
39、eramic material, all insulating material shall comply with the requirements of Clause 13.10. Any insulating material used as basic insulation shall have adequate mechanical and electrical strength. Ceramic material shall be of a type that does not increase in mass by more than 2% after being immerse
40、d in water for a period of 48 h. This is determined after removal of surface moisture. Other insulating material shall be not inferior to the class of material specified in AS/NZS 3121 in relation to the temperature at which the material is required to operate when the switch is tested in accordance
41、 with Clause 13.6. 6 FORM AND ACTION OF CONTACTS Unless switches are marked a.c., effective means shall be provided to prevent excessive arcing or sustained partial contact that would result in burning of the switch contacts under the conditions of use. The switch shall open with a rapid action that
42、 is independent of the rate of movement of the operating means. AS/NZS 3133:2008 COPYRIGHT 8 7 SEQUENCE OF OPERATION The moving contacts of all poles of a multiple-pole switch, including a switch with a pole that operates in the neutral, shall be mechanically coupled in such a way that all poles mak
43、e and break substantially together. If a switch has a switched neutral pole without the same making and breaking capacity as the active poles, the switched neutral pole shall not open before and shall not close after the other pole(s). 8 ACTUATING MECHANISM The actuating mechanism shall be construct
44、ed so that the switch contacts can only remain in the completely closed or the completely open position when the switch is operated in the normal manner. Operation of the switch to obtain a position of the contact between the completely open and the closed positions shall not be regarded as normal o
45、peration. 9 EARTHING FACILITIES Facilities shall be provided for the earthing of any exposed metal parts. Such facilities shall take the form of a suitable terminal, which, unless its function as an earthing terminal is clearly evident, shall be legibly and durably marked in accordance with the requ
46、irements for the Marking of Earth Connections described in AS/NZS 3100. For switches that are intended to be mounted in equipment, a separate earthing terminal shall not be required if the fixing means of the switch are such that they will provide good electrical continuity between exposed metal par
47、ts of the switch and metal parts of the equipment to which the switch is to be fixed. All exposed metal parts of a switch shall be in effective electrical connection with such facilities. 10 PROHIBITED ARRANGEMENTS A wall switch, or its face plate, shall not incorporate a connecting device for telev
48、ision or radio aerial wiring, telecommunications wiring or similar wiring systems. 11 FLUORESCENT LAMP LOAD RATING* All single-pole, single-way and single-pole, two-way switches (see Figures 1 (a) (i) and (c) (i) with a current rating up to and including 10 A shall have a fluorescent lamp load curre
49、nt rating equal to their current rating. Other switches may have an optional fluorescent lamp load rating of any value in accordance with Clause 13.14. 12 MARKING 12.1 Information required Except as indicated in Clause 12.4, switches shall be marked, in accordance with AS/NZS 3100, with the following information: (a)The name, or registered trade name, or mark, of the manufacturer or responsible vendor. (b)The operating voltage. (c)Current ratings, in amperes, corresponding to the marked voltage.
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