电气装置——布线系统元件的火灾和机械性能分类

Australian/New Zealand Standard^TM

Electrical installations—Classification of the fire and mechanical performance of wiring system elements

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AS/NZS 3013:2005

This Joint Australian/New Zealand Standard was prepared by Joint Technical Committee EL-037, Special Wiring Systems. It was approved on behalf of the Council of Standards Australia on 13 July 2005 and on behalf of the Council of Standards New Zealand on 29 July 2005. This Standard was published on 22 August 2005.

The following are represented on Committee EL-037:

• Australian Building Codes Board
• Australian Chamber of Commerce and Industry
• Australian Electrical and Electronic Manufacturers Association
• Australian Industry Group
• CSIRO Manufacturing & Infrastructure Technology
• Canterbury Manufacturers Association New Zealand
• Engineers Australia
• Ministry of Economic Development (New Zealand)
• National Electrical and Communications Association
• Property Council of Australia
• Testing Interests (Australia)

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This Standard was issued in draft form for comment as DR 02517.

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Australian/New Zealand Standard^TM

Electrical installations—Classification of the fire and mechanical performance of wiring system elements

Originated as AS 3013—1990.

Previous edition AS/NZS 3013:1995.

Third edition 2005.

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 Standards Australia, GPO Box 476, Sydney, NSW 2001 and Standards New Zealand, Private Bag 2439, Wellington 6020

ISBN 0 7337 6828 8

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PREFACE

This Standard was prepared by the Standards Australia/Standards New Zealand Committee EL-037 on Special Wiring Systems to supersede AS/NZS 3013:1995, Electrical installations—Classification of the fire and mechanical performance of wiring systems one year from publication. During this period, it is anticipated that regulatory authorities and others will accept wiring systems to either publication.

This Standard will be referenced in the Building Code of Australia by way of BCA Amendment thereby superseding AS/NZS 3013:1995 which will be withdrawn 12 months from the date of publication of this Standard.

This revision was undertaken to make the following changes to the testing regime:

(a) Allow individually tested elements to be combined to construct a wiring system. This removes the situation in the previous edition whereby it was inferred that the total system must be tested, and that installations must be configured as tested. Previously the onus of testing had fallen on cable companies and the contractor had to make a judgement as to the effect on installations that have deviated from the ‘as tested’ wiring system.

(b) Define a test installation that is more repeatable between tests and test houses, and that is more representative of installation practice. This is a result of the extensive testing conducted since the introduction of the first edition in 1990.

(c) Define the cables to be tested so that they are more representative of those most commonly used.

(d) Remove ambiguity regarding different cable types.

The need to maintain circuit integrity in buildings, oil rigs, ships, and other structures under fire conditions may be required by regulations and codes for wiring systems associated with firefighting, evacuation, emergency equipment, essential services and other safety functions.

While there are some Standards available for fire testing of cables (e.g. IEC 60331, Fire-resisting characteristics of electric cables; IEC 60332, Tests on electric cables under fire conditions; and BS 6387, Specification for performance requirements for cables required to maintain circuit integrity under fire conditions), it was considered that these did not form an adequate basis for a system of classification. For this reason, AS 1530.4, Fire-resistance test of elements of building construction has been used as the basis of fire protection classification of wiring system elements in this Standard. Testing in a horizontal furnace has been prescribed since it was considered that this represents the most onerous condition.

This Standard provides a system of classification of the degree of protection inherent in wiring system elements against accidental mechanical damage. It does not consider protection against deliberate tampering. The levels of mechanical protection are specified in terms of impact energies and cutting forces.

Appendices designated as ‘normative’ are essential to the understanding or implementation of this Standard. Appendices designated as ‘informative’ give additional information, recommendations, guidelines or other non-mandatory statements.

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CONTENTS

Page

SECTION 1 SCOPE AND APPLICATION

1.1 SCOPE 4

1.2 APPLICATION 4

1.3 REFERENCED DOCUMENTS 5

1.4 DEFINITIONS 5

SECTION 2 TESTING OF WIRING SYSTEM ELEMENTS 8

SECTION 3 CLASSIFICATION SYSTEM

3.1 DESIGNATION 8

3.2 FIRST CHARACTERISTIC NUMERAL 8

3.3 SECOND CHARACTERISTIC NUMERAL 9

3.4 EXAMPLES OF CLASSIFICATIONS 11

APPENDICES

A FIRE TEST METHOD—CABLES AND BUSWAYS 13

B WATER TEST METHOD—CABLES AND BUSWAYS 25

C FIRE TEST METHOD—SUPPORTS AND FIXINGS 29

D MECHANICAL TEST METHOD—IMPACT TEST 32

E MECHANICAL TEST METHOD—CUTTING TEST 38

F GUIDE TO USE OF THE CLASSIFICATION SYSTEM 42

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