AS/NZS 1026:2004 Electric cablesŠImpregnated paper insulatedŠFor working voltages up to and including 19/33 (36) kV
PREFACE
CONTENTS
1 SCOPE
2 REFERENCED DOCUMENTS
3 DEFINITIONS
3.1 Approximate value
3.2 Belted cable
3.3 Breaking joint
3.4 Conductor screen
3.5 Core (of a cable)
3.6 Direction of lay
3.7 Maximum continuous conductor temperature
3.8 Multicore cable
3.9 Nominal values
3.10 Non-hygroscopic
3.11 Registration
3.12 Screened cable
3.13 Separately leaded (SL) cable
3.14 Voltage designation
4 OPERATING VOLTAGES
5 MAXIMUM CONDUCTOR TEMPERATURES
6 CONDUCTORS
7 CONDUCTOR SCREEN
8 INSULATION
8.1 General
8.2 Material
8.3 Method of application
8.4 Paper thickness
8.5 Insulation thickness
9 CORE IDENTIFICATION
10 INSULATION SCREEN
10.1 General
10.2 Screen
10.3 Additional screening
11 LAYING UP
11.1 Belted cables
11.2 Screened cables
11.3 Screened SL cables
11.4 Direction of lay
12 IMPREGNATION
12.1 General
12.2 Compound test
12.3 Breaking load and elongation at break of impregnated paper
13 LEAD ALLOY SHEATH
13.1 General
13.2 Composition
13.3 Thickness
13.4 External coating
14 BEDDING (OPTIONAL)
14.1 General
14.2 Lapped bedding
14.3 Extruded bedding
14.3.1 Material
14.3.2 Thickness
15 ARMOUR (OPTIONAL)
15.1 General
15.2 Single-wire armour
15.3 Double-wire armour
16 NON-METALLIC SHEATH OR SERVING
16.1 Non-metallic sheath
16.1.1 Material
16.1.2 Thickness
16.2 Serving for armoured cables
17 COMPOUNDS FOR LAPPED BEDDING AND SERVING
18 CABLE MARKINGS
18.1 End markings
18.2 Identification of cables
18.3 Marking of non-metallic sheath
18.4 Metre marking on non-metallic sheath
19 SEALING AND PREPARATION FOR DELIVERY
19.1 General
20 TESTS
20.1 General
20.2 Test categories
20.3 Measurement of conductor resistance
20.4 Voltage tests
20.4.1 Test
20.4.2 Requirement
20.5 Dielectric dissipation factor (DDF)
20.5.1 Test
20.5.2 Requirements
20.6 Electrical tests on non-metallic sheaths
20.6.1 Spark test
20.6.2 Voltage test, d.c.
20.7 Measurement of insulation thickness
20.7.1 Test
20.7.2 Micrometer
20.8 Bending test
20.8.1 Sample
20.8.2 Test
20.8.3 Requirements after bending
20.9 Drainage test
20.10 Residual compound congealing point test
20.11 Breaking load and elongation at break of impregnated paper
APPENDIX A - RECOMMENDATIONS FOR SELECTION AND OPERATION
A1 VOLTAGE RATINGS
A1.1 Categories
A1.2 Category 1
A1.3 Category 2
A2 PROTECTIVE COVERINGS
A2.1 Non-metallic sheath
A2.2 Flame-retardant coverings
A3 PROTECTION AGAINST TERMITE OR ANT ATTACK
A4 CURRENT RATINGS
A5 SHORT CIRCUIT RATINGS
APPENDIX B - RECOMMENDATIONS FOR INSTALLATION
B1 MINIMUM TEMPERATURE DURING INSTALLATION
B2 MINIMUM INSTALLATION RADIUS
B3 TESTS AFTER INSTALLATION
APPENDIX C - PURCHASING GUIDELINES
APPENDIX D - SAMPLE TEST SAMPLE SELECTION AND RETEST PROCEDURE
D1 SELECTION OF SAMPLES
D2 RE-TEST PROCEDURE
APPENDIX E - DETERMINATION OF THICKNESS OF LEAD ALLOY SHEATH AND EXTRUDED BEDDING
E1 GENERAL
E2 METHOD OF MEASURING THICKNESS
E2.1 Lead alloy sheath
E2.2 Extruded bedding
APPENDIX F - METHOD OF TEST FOR WATER-SOLUBLE IMPURITIES IN INSULATING PAPER
APPENDIX G - TYPE TESTS FOR 19/33 (36) kV CABLES
0 G1 PRELIMINARY PROCEDURE
0 G2 LOADING CYCLE TEST
0 G2.1 Test installation
0 G2.2 Procedure
0 G3 IMPULSE VOLTAGE TEST
0 G3.1 Test installation
0 G3.2 Principle
0 G3.3 Detailed test method
APPENDIX H - INTERNAL PRESSURE TEST METHOD
0 H1 SCOPE
0 H2 APPLICATION AND RANGE OF QUALIFICATION
0 H3 PRINCIPLE
0 H4 TEST SPECIMENS AND TEST CONFIGURATION
0 H5 APPARATUS
0 H6 HEATING/COOLING CYCLE
0 H7 SET-UP AND TEST PROCEDURES
0 H8 CRITERIA OF FAILURE
0 H9 REPORTING OF RESULTS
