AS 1977-1977

1 - AS 1977-1977 FLEXIBLE INSULATING SLEEVING FOR ELECTRICAL PURPOSES
4 - PREFACE
5 - CONTENTS
6 - 1 SCOPE.
6 - 2 TYPES OF SLEEVING.
6 - 2.1 References.
6 - 2.2 Construction.
7 - 3 COLOUR.
7 - 3.1 Type 1 (Coated Textile) Sleeving.
7 - 3.2 Type 3 (PVC) Sleeving or Type 1 with PVC Coating.
8 - 3.3 Type 5 (Silicone) Sleeving or Type 1 with Silicone Elastomer Coating
8 - 3.4 Type 6 (PTFE) Sleeving.
8 - 3.5 Colour Fastness to Light.
8 - 4 FINISH.
9 - 5 DIMENSIONS AND TOLERANCES.
9 - 5.1 Length.
9 - 5.2 Bore Diameter and Wall Thickness.
10 - 6 TEST SPECIMENS.
10 - 7 TESTS.
10 - 8 TEST CONDITIONS.
10 - 9 MECHANICAL TESTS.
10 - 9.1 Resistance to Splitting.
10 - 9.2 Bending.
13 - 9.3. Flexibility.
13 - 9.4 Elongation at Break.
13 - 9.5 Tensile Strength.
13 - 10 CHEMICAL AND PHYSICAL TESTS.
13 - 10.1 Acidity.
13 - 10.2 Stability of Coating.
13 - 10.3 Shrinkage.
14 - 10.4 Cold Flow.
14 - 10.5 Resistance to Soldering Heat.
14 - 10.6 Rate of Burning.
15 - 10.7 Flame Retardance.
15 - 10.8 Volatile Content.
15 - 11 ELECTRICAL TESTS.
15 - 11.1 Voltage Proof Tests.
15 - 11.2 Insulation Resistance.
16 - 12 MOULD GROWTH.
16 - 13 ACCELERATED DAMP HEAT.
16 - 14 TRANSPARENCY.
18 - APPENDIX A - MEASUREMENT OF BORE DIAMETER AND WALL THICKNESS
18 - A1 INTRODUCTION.
18 - A2 BORE.
18 - A3 WALL THICKNESS.
19 - APPENDIX B - BENDING TESTS
19 - B1 INTRODUCTION.
19 - B2 SLEEVING‘ AS RECEIVED’.
19 - B3 HEAT AGED SLEEVING.
20 - B4 SLEEVING AT LOW TEMPERATURE.
21 - APPENDIX C - FLEXIBILITY TEST
21 - C1 INTRODUCTION.
21 - C2 TEST SPECIMEN.
21 - C3 CONDITIONING.
21 - C4 APPARATUS.
22 - C5 TEST TEMPERATURE.
22 - C6 PROCEDURE.
24 - APPENDIX D - TEST FOR TENSILE STRENGTH AND ELONGATION AT BREAK
24 - D1 INTRODUCTION.
24 - D2 TEST SPECIMENS.
24 - D3 CONDITIONING.
24 - D4 TEST TEMPERATURE.
24 - D5 PROCEDURE.
25 - D6 RESULTS.
26 - APPENDIX E - DETERMINATION OF ACIDITY
26 - E1 INTRODUCTION.
26 - E2 TEST PIECE.
26 - E3 PROCEDURE.
26 - E3.1 General.
26 - E3.2 Preparation of Water Extract.
26 - E3.3 Titration.
27 - E4 RESULTS.
28 - APPENDIX F - TEST FOR STABILITY OF COATING
28 - F1 INTRODUCTION.
28 - F2 PROCEDURE.
29 - APPENDIX G - SHRINKAGE TEST
29 - G1 INTRODUCTION.
29 - G2 PROCEDURE.
30 - APPENDIX H - COLD FLOW TEST
30 - H1 INTRODUCTION.
30 - H2 PROCEDURE.
31 - APPENDIX J - TEST FOR RESISTANCE TO SOLDERING HEAT
31 - J1 INTRODUCTION.
31 - J2 PROCEDURE.
33 - APPENDIX K - RATE OF BURNING TEST
33 - K1 INTRODUCTION.
33 - K2 APPARATUS.
33 - K3 PROCEDURE.
34 - APPENDIX L - FLAME RETARDANCE TEST
34 - L1 INTRODUCTION.
34 - L2 TEST SPECIMEN.
34 - L3 TEST CONDITIONS.
34 - L4 SOURCE OF HEAT.
34 - L5 TEST PROCEDURE.
36 - APPENDIX M - DETERMINATION OF VOLATILE CONTENT
36 - M1 INTRODUCTION.
36 - M2 TEST SPECIMENS.
36 - M3 PROCEDURE.
36 - M4 RESULTS.
37 - APPENDIX N - PROOF TEST FOR ELECTRIC STRENGTH
37 - N1 INTRODUCTION.
37 - N2 TEST SPECIMENS.
37 - N2.1 Bore Not Exceeding 3 mm Nominal Diameter.
37 - N2.2 Bore Exceeding 3 mm Nominal Diameter.
37 - N3 PROCEDURE.
37 - N3.1 Tests at Room Temperature.
38 - N3.2 Tests at Maximum Operating Temperature of Sleeving.
39 - N4 APPLICATION OF PROOF VOLTAGE.
40 - APPENDIX P - INSULATION RESISTANCE TESTS
40 - P1 INTRODUCTION.
40 - P2 TEST SPECIMENS.
40 - P3 PROCEDURE.
40 - P3.1 General.
40 - P3.2 Test in Air Under Normal Conditions.
40 - P3.3 Test on Sleeving After Accelerated Heat Treatment.
41 - P3.4 Determination of Insulation Resistance.
42 - APPENDIX Q - ACCELERATED DAMP HEAT TREATMENT
42 - Q1 INTRODUCTION.
42 - Q2 PROCEDURE.
43 - APPENDIX R - TRANSPARENCY TEST