Australian Standard. Stand-alone power systems. Part 1: Safety requirements AS

Transcription

1 AS Australian Standard Stand-alone power systems Part 1: Safety requirements

2 This Australian Standard was prepared by Committee EL/42, Renewable Energy Power Supply Systems and Equipment. It was approved on behalf of the Council of Standards Australia on 23 November 1998 and published on 5 February The following interests are represented on Committee EL/42: Alternative Technology Association Australian Electrical and Electronic Manufacturers Association Department of Energy N.S.W. Department of Industry Science and Tourism (Commonwealth) Department of Mines and Energy, South Australia Department of Primary Industries and Energy (Commonwealth) Electricity Supply Association of Australia Ministry of Commerce, New Zealand National Electrical Contractors Association of Australia Office of the Chief Electrical Inspector Victoria Solar Energy Industries Association of Australia University of New South Wales Review of Australian Standards. To keep abreast of progress in industry, Australian Standards are subject to periodic review and are kept up to date by the issue of amendments 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 Australian Standards and related publications will be found in the Standards Australia Catalogue of Publications; this information is supplemented each month by the magazine The Australian Standard, which subscribing members receive, and which gives details of new publications, new editions and amendments, and of withdrawn Standards. Suggestions for improvements to Australian Standards, addressed to the head office of Standards Australia, are welcomed. Notification of any inaccuracy or ambiguity found in an Australian Standard should be made without delay in order that the matter may be investigated and appropriate action taken. This Standard was issued in draft form for comment as DR

3 AS Australian Standard Stand-alone power systems Part 1: Safety requirements First published as AS Incorporating: Amdt Published by Standards Australia (Standards Association of Australia) 1 The Crescent, Homebush, NSW 2140 ISBN

4 AS PREFACE This Standard was prepared by the Joint Standards Australia/Standards New Zealand Committee EL/42, Renewable Energy Power Supply Systems and Equipment. The Standard is the result of a consensus among the representatives on the Joint Committee that it be produced as an Australian Standard. The objective of this Standard is to specify essential safety requirements for stand-alone power systems used for the supply of extra-low and low voltage electric power. This Standard was prepared following requests from interests involved in the solar energy industry who considered the need for a Standard for safety, design, installation and maintenance procedures appropriate to the industry. This Standard was developed with the assistance of the following organizations: NSW Department of Energy Australian CRC for Renewable Energy. This Standard is Part 1 of a series which consists of the following: AS 4509 Stand-alone power systems Part 1: Safety requirements Part 3: Installation and maintenance Any comments on the Standard that users wish to submit will be considered by Committee EL/42 when the Standard is next reviewed. Submissions should be forwarded to Projects Manager, EL/42 Standards Australia PO Box 1055 Strathfield NSW 2135 Copyright STANDARDS AUSTRALIA Users of Standards are reminded that copyright subsists in all Standards Australia publications and software. Except where the Copyright Act allows and except where provided for below no publications or software produced by Standards Australia may be reproduced, stored in a retrieval system in any form or transmitted by any means without prior permission in writing from Standards Australia. Permission may be conditional on an appropriate royalty payment. Requests for permission and information on commercial software royalties should be directed to the head office of Standards Australia. Standards Australia will permit up to 10 percent of the technical content pages of a Standard to be copied for use exclusively in-house by purchasers of the Standard without payment of a royalty or advice to Standards Australia. Standards Australia will also permit the inclusion of its copyright material in computer software programs for no royalty payment provided such programs are used exclusively in-house by the creators of the programs. Care should be taken to ensure that material used is from the current edition of the Standard and that it is updated whenever the Standard is amended or revised. The number and date of the Standard should therefore be clearly identified. The use of material in print form or in computer software programs to be used commercially, with or without payment, or in commercial contracts is subject to the payment of a royalty. This policy may be varied by Standards Australia at any time.

5 3 AS CONTENTS Page SECTION 1 SCOPE AND GENERAL 1.1 SCOPE REFERENCED DOCUMENTS DEFINITIONS INFORMATION FOR EMERGENCY SERVICES SIGNS... 5 SECTION 2 WIRING AND CIRCUIT PROTECTION 2.1 WIRING PROTECTION EARTHING... 6 SECTION 3 EQUIPMENT 3.1 GENERATING SETS FUEL TOWERS, STRUCTURES AND GUY WIRES ISOLATION BATTERIES MECHANICAL AND THERMAL PROTECTION MULTIPLE LV SOURCES... 8 SECTION 4 SHUTDOWN PROCEDURE... 10

6 AS STANDARDS AUSTRALIA Australian Standard Stand-alone power systems Part 1: Safety requirements SECTION 1 SCOPE AND GENERAL 1.1 SCOPE This Standard sets out safety requirements for stand-alone power systems used for the supply of extra-low and low voltage electric power to a single residence or a small group of residences or buildings and associated items, with energy storage at extralow voltage. Equipment up to, and including, the system output terminals is covered by this Standard. 1.2 REFERENCED DOCUMENTS The following documents are referred to in this Standard: AS 1170 Minimum design loads on structures (known as the SAA Loading Code) Part 2: Wind loads 1319 Safety signs for the occupational environment 1530 Methods for fire tests on building materials, components and structures Part 4: Fire-resistance tests of elements of building construction 1768 Lightning protection 1940 The storage and handling of flammable and combustible liquids 3000 Electrical installations Buildings, structures and premises (known as the SAA Wiring Rules) 4086 Secondary batteries for use with stand-alone power systems Part 2: Installation and maintenance AS/NZS 3131 Approval and test specification Plugs and socket-outlets for use in installation wiring systems 1.3 DEFINITIONS For the purposes of this Standard, the definitions below apply Alternating current (a.c.) electric current that reverses its direction of flow at regular intervals. This type of current flow is generally produced by rotating electromagnetic alternators or inverters Authorized person the person in charge of the premises, or the licensed electrical contractor or electrician or other person appointed or selected by the person in charge of the premises to perform certain duties associated with the electrical installation on the premises Competent person a person who has acquired through training, qualifications, experience, or a combination of these, knowledge and skill enabling that person to correctly perform the task required. COPYRIGHT

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