AS 3178-1991

1 - AS 3178-1991 APPROVAL AND TEST SPECIFICATION - ELECTRIC CABLES - SILICONE RUBBER INSULATED - FOR WORKING VOLTAGES UP TO AND I
4 - PREFACE
5 - CONTENTS
6 - 1 SCOPE
6 - 2 REFERENCED DOCUMENTS
6 - 3 DEFINITIONS
6 - 3.1 Core
6 - 3.2 Multicore cable
6 - 3.3 Fixed cable
6 - 3.4 Flexible cable
6 - 3.5 Maximum continuous conductor temperature
6 - 3.6 Voltage designation
6 - 3.7 Direction of lay
7 - 3.8 Wavelength or length of lay
7 - 3.9 Pitch circle diameter
7 - 3.10 Approximate value
7 - 3.11 Fictitious values
7 - 3.12 Routine tests
7 - 3.13 Special tests
7 - 3.14 Type tests
7 - 3.15 Sample tests
7 - 4 VOLTAGE DESIGNATION
7 - 5 MAXIMUM CONTINUOUS CONDUCTOR TEMPERATURE
7 - 6 CONDUCTORS
7 - 7 INSULATION
7 - 7.1 Material
7 - 7.2 Application
7 - 7.3 Thickness
8 - 7.4 Tests
8 - 7.5 Criteria
8 - 7.6 Core Identification
8 - 8 LAY UP OF CORES
8 - 8.1 Multicore cables
8 - 8.2 Length of lay of cores in flexible multicore cables
8 - 9 FILLERS, BARRIER TAPES AND BINDERS
9 - 10 BEDDING
9 - 10.1 General
10 - 10.2 Bedding under a metallic layer other than armour
10 - 10.3 Bedding under the armour
10 - 11 METALLIC LAYERS
11 - 12 SEPARATION SHEATH
11 - 12.1 Provision of sheath
11 - 12.2 Material and application
11 - 12.3 Thickness
11 - 12.4 Tests
11 - 12.5 Criteria
11 - 13 ARMOUR
11 - 13.1 Material
11 - 13.2 Dimensions of wire and tape
11 - 13.3 Application
12 - 14 METAL SHEATH
12 - 14.1 Material
12 - 14.2 Application
12 - 14.3 Thickness
12 - 15 NON-METALLIC SHEATH
12 - 15.1 Material
13 - 15.2 Application
13 - 15.3 Thickness
13 - 15.4 Tests
13 - 15.5 Criteria
14 - 16 NON-METALLIC BRAID
14 - 16.1 Material andapplication
14 - 16.2 Thickness
15 - 17 SERVING
15 - 18 MARKING
15 - 18.1 Information to be marked
15 - 18.2 Means of marking
15 - 18.3 Marking of coils or reels
15 - 19 CONSTRUCTION AND DIMENSIONS
15 - 20 TESTS
16 - 21 ACCEPTANCE CRITERIA
29 - APPENDIX A - THE FICTITIOUS CALCULATION METHOD FOR THE DETERMINATION OF THE DIMENSIONS OF PROTECTIVE COVERINGS
29 - INTRODUCTION
29 - A1 GENERAL
29 - A2 METHOD
29 - A2.1 Conductors
30 - A2.2 Cores
30 - A2.3 Diameter over laid-up cores
30 - A2.4 Bedding
31 - A2.5 Metallic screen or concentric conductor
32 - A2.6 Metal sheath
32 - A2.7 Separation sheath
32 - A2.8 Armour
33 - APPENDIX B - ROUNDING OF NUMBERS
33 - B1 ROUNDING OF NUMBERS FOR THE PURPOSE OF THE ‘FICTITIOUS CALCULATION METHOD
33 - B2 ROUNDING OF NUMBERS FOR OTHER PURPOSES
34 - APPENDIX C - INFORMATION TO BE SUPPLIED WITH ENQUIRY AND ORDER
35 - APPENDIX D - NOTES ON CALCULATION OF DIMENSIONS OF CABLE
35 - D1 APPROXIMATE OVERALL DIMENSIONS
35 - D2 TOLERANCES

Specifies the construction, dimensions and tests for cables insulated with silicone rubber, intended for use in electrical installations at working voltages up to and including 0.6/1 kV. The Standard does not apply to heavy duty flexible cable applications, which are included in other cable Standards.

This Standard specifies construction, dimensions and tests for cables and flexible cables insulated with silicone rubber, and intended for use in electrical installations at working voltages up to and including 0.6/1 kV.Flexible cables complying with this Standard are restricted to applications where flexible connections are required or to facilitate installation in restricted spaces and are not recommended for heavy duty flexible cable applications that are covered by cables manufactured in accordance with AS 3116. Cables without metallic sheath are not recommended for underground installations.NOTES:1. Purchasing guidelines are contained in Appendix C.2. In addition to providing detailed requirements for cables of the types and sizes in the tables of construction and dimensions, this Standard provides the basis of requirements for other types and sizes, including flexible cables, in the range of materials covered by this Standard.