IEC 60794-4:2003

FOREWORD
1 Scope
2 Normative references
3 Definitions and abbreviations of cables
   3.1 Definitions
   3.2 Abbreviations of cables
4 Optical fibre
   4.1 General
   4.2 Attenuation
        4.2.1 Attenuation coefficient
        4.2.2 Attenuation uniformity
   4.3 Cut-off wavelength of cabled fibre
   4.4 Fibre colouring
   4.5 Polarization mode dispersion (PMD)
5 Cable element
   5.1 Slotted core
   5.2 Plastic tube
   5.3 Ribbon
   5.4 Metallic tube
        5.4.1 Metallic tube on the optical core
        5.4.2 Fibres directly located in a metallic tube
6 Optical fibre cable construction
   6.1 General
   6.2 Lay-up of the cable elements
   6.3 Cable core filling
   6.4 Strength members
        6.4.1 OPGW, OPPC and MASS
        6.4.2 ADSS and OPAC
   6.5 Inner sheath
   6.6 Outer sheath
   6.7 Sheath marking
7 Main requirements for installation and operating conditions
   7.1 General
   7.2 Characterization of optical units for splicing purpose
8 Design characteristics
9 Optical fibre cable tests
   9.1 Classification of tests
        9.1.1 Type tests
        9.1.2 Sample tests
        9.1.3 Routine tests
   9.2 Tensile performance
   9.3 Stress-strain test on metallic cables
   9.4 Installation capability
        9.4.1 Sheave test
        9.4.2 Repeated bending
        9.4.3 Impact
        9.4.4 Crush
        9.4.5 Kink
        9.4.6 Torsion
   9.5 Temperature cycling
   9.6 Short circuit
   9.7 Lightning test
   9.8 Ageing
        9.8.1 Fibre coating compatibility
        9.8.2 Finished cable
   9.9 Hydrogen gas
   9.10 Aeolian vibration
   9.11 Creep
   9.12 Fitting compatibility
   9.13 Water penetration (for filled cables only)
   9.14 Bleeding (for filled cables only)
   9.15 Grease
   9.16 Attenuation
   9.17 Tracking and erosion resistance test on ADSS and OPAC
   9.18 Weathering resistance test on ADSS and OPAC
   9.19 Shotgun resistance test on ADSS and OPAC
   9.20 Conductor access trolley for OPAC
10 Quality assurance
11 Packaging
Annex A (informative) Recommended methods of calculating
                      rated tensile strength, cross-section of
                      a layer of trapezoidal shaped wires,
                      modulus of elasticity, linear expansion
                      and d.c. resistance

Specifies the electrical, mechanical and optical requirements and test methods for aerial optical cables including OPGW (optical ground wire), OPPC (optical phase conductor), MASS (metalic aerial self-supported cable), ADSS (all-dielectric self-supporting cable) and OPAC (optical attached cable).