1.Good electrical parameters; when the cable moves with the elevator, a section of the cable is bent and deformed under the action of gravity, causing changes in electrical parameters such as cable impedance and distributed capacitance. When the quality of the cable is deformed under stress, the parameters change greatly, which will cause impedance mismatch, an increase of video attenuation, and signal reflection, which will cause the signal-to-noise ratio of the video signal to decrease and cause video interference. Shielded video cable with thick wire diameter.

2.Satisfy the tensile strength; half of the elevator cables are used for the extension. High-rise elevators can reach up to more than 100 meters. The weight of a 100-meter cable is nearly 100 kilograms, so the cable must have sufficient tensile strength. Now there is self-supporting flat composite elevator monitoring special cables on the market. This kind of cable combines the video coaxial cable, power cable, data cable, and steel stranded wire together to make a flat ribbon cable. The tensile force of the cable is borne by the steel wire rope, and the tensile strength is very good, and the signal cable will not be broken due to gravity during the operation of the elevator.