BS EN 50117 is a series on Coaxial cables. Coaxial cables are a type of transmission line, used to carry high-frequency electrical signals with low losses. BS EN 50117‑9‑3 is a sectional specification that applies to coaxial indoor drop cables for analogue and digital one and two-way signal transmission, e.g., for cable networks for television signals, sound signals and interactive services. BS EN 50117‑9‑3 also includes the transmission of BCT signals provided by a CATV, MATV or SMATV cable network. These cables are suitable to implement the network type Case D.
The purpose of BS EN 50117‑9‑3 is to specify the applicable test methods and requirements for the electrical, mechanical, and environmental characteristics and for the fire performance of the cables.
BS EN 50117‑9‑3 on coaxial cables is applicable to:
Coaxial cables are a type of electrical cable consisting of an inner conductor surrounded by a concentric conducting shield, with the two separated by a dielectric (insulating material); many coaxial cables also have a protective outer sheath or jacket. BS EN 50117‑9‑3 implementation allows the user to establish a high transfer rate for the appliances working in the frequency range from 5Mhz to 600Mhz.
When designing the cable, consideration is given to the maximum admissible current stated in the detailed specification. It is assumed that the rise of the temperature of the inner conductor when submitted to the maximum current under nominal ambient conditions does not affect the mechanical and electrical properties of the cable. Cables according to BS EN 50117‑9‑3 may be operated at voltages > 50 V AC or >75 V DC according to the detailed specification of the manufacturer. However, these cables are not intended for direct connection to the mains electricity supply or other low impedance sources.
All cables covered by BS EN 50117‑9‑3 do not fall under the scope of the RED or the EMC
directive. Nevertheless, transfer impedance and screening attenuation according to 5.1.3.6
and 5.1.3.7 is specified in the relevant detail specification if the intended application of
the cable is used in combination with equipment under the RED or the EMC Directive. High bandwidth, easy to install, durable and less suspectable to noise and interference makes BS EN 50117‑9‑3 more convenient for indoor applications. Using BS EN 50117‑9‑3 you can understand sectional specification that applies to coaxial indoor drop cables for analogue and digital one and two-way signal transmission, e.g., for cable networks for television signals, sound signals and interactive services.
EN 50117-9-3:2019