GB/T 17737.1-2013Coaxial communication cables -- Part 1: Generic specification -- General, definitions and requirements (English PDF)

National Standard of the People's Republic of China

ICS

33.120.10

Contents

• 1 Scope
• 2 Normative references
• 3 Terms and definitions
• 3.1 Media type dielectrictypes
• 3.1.1 Air dielectric cable airspaceddielectriccables
• 3.1.2 Semi-air media cable semi-airspaceddielectriccables
• 3.1.3 Solid media cable soliddielectriccables
• 3.2 Braided braiding
• 3.2.1 Braided angle braidedangle
• 3.2.2 Weaving coefficient layfactor
• 3.2.3 Fill factor factoringfactor
• 3.2.4 Weaving density coveragefactor
• 3.3 Media eccentricityofdielectric
• 3.4 Ellipticality of media or cable ovalityofdielectricorcable
• 3.5 Impedance impedance
• 3.5.1 Characteristic impedance characteristicimpedance
• 3.5.2 Average characteristic impedance meancharacteristicimpedance
• 3.5.3 Impedance non-uniformity
• 3.5.3.1 Random impedance non-uniformity randomimpedanceirregularities
• 3.5.3.2 Periodic impedance non-uniformity periodicimpedanceirregularities
• 3.5.3.3 Local impedance non-uniformity localimpedanceirregularities
• 3.6 Speed ratio (relative propagation speed) velocityratio(relativepropagationvelocity)
• 3.7 Rated power
• 3.8 Shielding efficiency screeningeffectiveness
• 3.8.1 Transfer impedance transferimpedance
• 3.8.2 Capacitive coupling capacitivecoupling
• 3.8.3 Shielding attenuation screeningattenuation
• 3.9 Self-supporting cable messengeredcable
• 3.10 Overhead cable aerialcable
• 3.11 Suspension line messenger
• 4 Materials and cable construction
• 4.1 General
• 4.2 Visual inspection
• 4.3 Dimensional measurement
• 4.4 Cable Structure - Inner Conductor
• 4.4.1 Conductor material
• 4.4.2 Inner conductor metal coating
• 4.4.3 Thickness of conductor cladding
• 4.4.4 Structure of inner conductor
• 4.4.5 Solderability
• 4.5 Media
• 4.5.1 Type
• 4.5.2 Tensile strength and elongation at break
• 4.5.3 Eccentricity
• 4.5.4 Ellipticity
• 4.6.1 General
• 4.6.2 Intermediate jacket/intermediate layer
• 4.6.3 Semi-conductive layer
• 4.7 Jacket or sheath
• 4.7.1 General
• 4.7.2 Jacket thickness and outer diameter
• 4.7.3 Moisture barrier
• 4.7.4 Ellipticity
• 4.7.5 Flammability
• 4.7.6 Corrosive products during combustion
• 4.8 Armored
• 5 Standard ratings and characteristics
• 6.1 Identification
• 6.1.1 Cable sign
• 6.2 IEC mark
• 6.3 Label
• 7 Test and test methods
• 9 Delivery and storage