BSI 13/30283302 DC:2013 Edition
$13.70
BS EN 62783-1. Twinax cables for digital communications. Part 1. Generic specification
| Published By | Publication Date | Number of Pages |
| BSI | 2013 | 17 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 8 | 1 Normative references |
| 9 | 2 Definitions 3 Requirements for cables construction 3.1 General remarks 3.2 Cable construction 3.2.1 Conductor 3.2.2 insulation |
| 10 | 3.2.3 Colour code 3.2.4 Drain wire 3.2.5 Shielding of cable assembly element 3.2.6 Cable make-up |
| 11 | 3.2.7 Screening of the cable core 3.2.8 Sheath 3.2.9 Colour of sheath 3.2.10 Identification 3.2.10.1 Cable marking 3.2.10.2 Labelling 3.2.11 Finished cable |
| 12 | 4 Test methods 4.1 General remarks 4.2 Electrical tests 4.2.1 Conductor resistance 4.2.2 Resistance unbalance 4.2.3 Dielectric strength 4.2.4 Insulation resistance 4.2.5 Mutual capacitance 4.2.6 Transfer impedance |
| 13 | 4.3 Transmission tests (ffs) 4.3.1 Group velocity of propagation 4.3.2 Propagation delay 4.3.3 Delay skew; 4.3.3.1 Intra pair delay skew 4.3.3.2 Inter pair delay skew |
| 14 | 4.3.4 Attenuation 4.3.4.1 Equipment 4.3.4.2 Calibration 4.3.4.3 Measurements 4.3.4.4 Cable under test (CUT) |
| 15 | 4.3.5 Near-end crosstalk |
| 16 | 4.3.7 Characteristic impedance 4.3.7.1 Introduction 4.3.7.2 Methods and equipment for obtaining characteristic impedance data 4.3.7.3 Requirements The requirements for the impedance and structural effects are given in the relevant cable specification. 4.4 Mechanical and dimensional measurement tests 4.4.1 Measurement of dimensions 4.4.2 Elongation at break of the conductor 4.4.3 Tensile strength of the insulation 4.4.4 Elongation at break of the sheath 4.4.5 Tensile strength of the sheath 4.4.6 Crush test of the cable 4.4.7 Impact test of the cable 4.4.8 Repeated bending of the cable 4.4.9 Tensile performance of the cable |
| 17 | 4.5 Environmental tests 4.5.1 Shrinkage of the insulation 4.5.2 Wrapping test of the insulation after thermal ageing 4.5.3 Bending test of the insulation at low temperature 4.5.4 Elongation at break of the sheath after ageing 4.5.5 Tensile strength of the sheath after ageing 4.5.6 Sheath pressure test at high temperature 4.5.7 Cold bend test of the cable 4.5.8 Heat shock test 4.5.9 Flame propagation characteristics of a single cable 4.5.10 Flame propagation characteristics of bunched cables 4.5.11 Halogen gas evolution 4.5.12 Smoke generation 4.5.13 Toxic gas emission 4.5.14 Combined flame and smoke test for cables in environmental air handling spaces |
