AS/NZS 1660.5.2:2006

1 - AS/NZS 1660.5.2:2006 TEST METHODS FOR ELECTRIC CABLES, CORDS AND CONDUCTORS - FIRE TESTS-MEASUREMENT OF SMOKE DENSITY OF...
4 - PREFACE
5 - CONTENTS
7 - SECTION 1 SCOPE AND GENERAL
7 - 1.1 SCOPE
7 - 1.2 REFERENCES
7 - 1.3 DEFINITIONS
8 - SECTION 2 TEST APPARATUS
8 - 2.1 DETAILS OF TEST ENCLOSURE
8 - 2.2 PHOTOMETRIC SYSTEM
8 - 2.2.1 Configuration
8 - 2.2.2 Light source
9 - 2.2.3 Photocell
9 - 2.2.4 Adjustment
9 - 2.3 STANDARD FIRE SOURCE
10 - 2.4 SMOKE MIXING
10 - 2.5 BLANK TEST
10 - 2.5.1 Purpose
10 - 2.5.2 Procedure
10 - 2.6 QUALIFICATION OF TEST APPARATUS
10 - 2.7 QUALIFICATION BURNING TEST
10 - 2.7.1 Purpose
10 - 2.7.2 Preparation of cube
11 - 2.7.3 Qualification fire sources
11 - 2.7.4 Test procedure
11 - 2.7.5 Calculation
11 - 2.7.6 Requirements
12 - SECTION 3 TEST PROCEDURE AND REQUIREMENTS
12 - 3.1 TEST APPARATUS
12 - 3.2 TEST ASSEMBLY
12 - 3.2.1 Test sample
12 - 3.2.2 Cable test piece selection and test sample assembly
13 - 3.2.3 Positioning of test sample
13 - 3.3 TEST PROCEDURE
13 - 3.3.1 Temperature within cube
13 - 3.3.2 Blank test
13 - 3.3.3 Fire source
13 - 3.3.4 Alcohol ignition
13 - 3.3.5 Conclusion of test
14 - 3.3.6 Recording
14 - 3.3.7 Extraction of combustion products
14 - 3.4 EVALUATION OF TEST RESULTS
14 - 3.5 RETEST PROCEDURE
14 - 3.6 TEST REPORT
18 - APPENDIX A - GUIDANCE NOTES
18 - A1 THE CHAMBER ENVIRONMENT AND IGNITION SOURCE
18 - A2 OPTICAL SYSTEM
20 - APPENDIX B - GUIDANCE ON THE PRINCIPLES AND USE OF SMOKE MEASUREMENTS
20 - B1 BACKGROUND
20 - B1.1 Bouguer's Law
21 - B1.2 Extinction area
21 - B1.3 Visibility
21 - B2 USE OF PARAMETERS MEASURED IN THE STANDARD
22 - APPENDIX C - RECOMMENDED PERFORMANCE REQUIREMENTS

Specifies the test procedure for the measurement of the density of the smoke emitted from electric or optical fibre cables burning under defined conditions.

This Standard provides details of the test procedure to be employed for the measurement of the density of the smoke emitted from electric or optical fibre cables burning under defined conditions, for example, a few cables burnt horizontally.It describes the test apparatus to be used, the means of preparing and assembling cables for test, the method of burning the cables and gives recommended requirements for evaluating test results.The light transmittance (lt) under flaming combustion and smouldering conditions can be used as a means of comparing different cables or complying with specific requirements.NOTE: For the purposes of this Standard, the term 'electric cable' covers all insulated metallic conductor cables used for the conveyance of energy or signals.

Originated as AS 1660.5.2-1992.
Jointly revised and designated as AS/NZS 1660.5.2:1998.
Third edition 2006.