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BS IEC 61156-11:2023 – TC

BS IEC 61156-11:2023 – TC

$186.33

Tracked Changes. Multicore and symmetrical pair/quad cables for digital communications – Symmetrical single pair cables with transmission characteristics up to 1,25 GHz. Horizontal floor wiring. Sectional specification

Published By Publication Date Number of Pages
BSI 2023 76
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PDF Catalog

PDF Pages PDF Title
1 30474446
47 A-30431293
48 undefined
50 CONTENTS
53 FOREWORD
55 1 Scope
2 Normative references
56 3 Terms and definitions
4 Installation considerations
4.1 General remarks
4.2 Bending radius of installed cable
4.3 Climatic conditions
5 Materials and cable construction
5.1 General remarks
5.2 Cable construction
57 5.3 Conductor
5.4 Insulation
5.5 Cable element
5.6 Screening of the cable element
5.7 Cable make-up
5.8 Screening of the cable core
5.9 Sheath
58 5.10 Identification
5.11 Finished cable
6 Characteristics and requirements
6.1 General remarks
6.2 Electrical characteristics and tests
6.2.1 Conductor resistance
6.2.2 Resistance unbalance
59 6.2.3 Dielectric strength
6.2.4 Insulation resistance
6.2.5 Mutual capacitance
6.2.6 Capacitance unbalance
6.2.7 Transfer impedance
6.2.8 Coupling attenuation and low frequency coupling attenuation
Tables
Table 1 ā€“ Transfer impedance
60 6.2.9 Current-carrying capacity
6.3 Transmission characteristics
6.3.1 Velocity of propagation (phase velocity)
6.3.2 Phase delay and differential delay (delay skew)
Table 2 ā€“ Coupling attenuation
Table 3 ā€“ Low frequency coupling attenuation
61 6.3.3 Attenuation (Ī±)
Table 4 ā€“ Attenuation equation constants
62 6.3.4 Unbalance attenuation (TCL and EL TCTL)
6.3.5 Alien (exogenous) near-end crosstalk (PS ANEXT)
Table 5 ā€“ TCL requirements
Table 6 ā€“ EL TCTL requirements
63 6.3.6 Alien (exogenous) far-end crosstalk (PS AACR-F)
6.3.7 Alien (exogenous) crosstalk of bundled cables
6.3.8 Impedance
Table 7 ā€“ PS ANEXT requirements
Table 8 ā€“ PS AACR-F requirements
64 6.3.9 Return loss (RL)
6.4 Mechanical and dimensional characteristics and requirements
6.4.1 Dimensional requirements
6.4.2 Elongation at break of the conductor
6.4.3 Tensile strength of the insulation
6.4.4 Elongation at break of the insulation
6.4.5 Adhesion of the insulation to the conductor
6.4.6 Elongation at break of the sheath
6.4.7 Tensile strength of the sheath
Table 9 ā€“ RL requirements
65 6.4.8 Crush test of the cable
6.4.9 Impact test of the cable
6.4.10 Bending under tension
6.4.11 Repeated bending of the cable
6.4.12 Tensile performance of the cable
6.4.13 Shock-test requirements of the cable
6.4.14 Bump-test requirements of the cable
6.4.15 Vibration-test requirements of a cable
6.5 Environmental characteristics
6.5.1 Shrinkage of the insulation
6.5.2 Wrapping test of the insulation after thermal ageing
6.5.3 Bending test of insulation at low temperature
6.5.4 Elongation at break of the sheath after ageing
66 6.5.5 Tensile strength of the sheath after ageing
6.5.6 Sheath pressure test at high temperature
6.5.7 Cold bend test of the cable
6.5.8 Heat shock test
6.5.9 Damp heat steady state
6.5.10 Solar radiation
6.5.11 Solvents and contaminating fluids
6.5.12 Salt mist and sulphur dioxide
6.5.13 Water immersion
6.5.14 Hygroscopicity
6.5.15 Wicking
6.5.16 Flame propagation characteristics of a single cable
6.5.17 Flame propagation characteristics of bunched cables
67 6.5.18 Halogen gas evolution
6.5.19 Smoke generation
6.5.20 Toxic gas emission
6.5.21 Integrated fire test method for cables in environmental air handling spaces
7 Bundled cable requirements
7.1 General
7.2 Single pairs sharing one sheath
7.2.1 General
7.2.2 Near-end crosstalk (NEXT)
Table 10 ā€“ NEXT and PS NEXT requirements
68 7.2.3 Attenuation to crosstalk ratio far-end (PS ACR-F)
Table 11 ā€“ ACR-F and PS ACR-F requirements
69 Annex A (informative) Blank detail specification
74 Annex B (informative) Background information for coupling attenuation and low frequency coupling attenuation requirements
75 Bibliography

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BS IEC 61156-11:2023 - TC
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