Monitoring line MHYVP1 * 8 * 7/0.52 signal shielded cable

This cable is designed for signal transmission in environments such as coal mines. In the model,“MHYV”Representing polyethylene insulated polyvinyl chloride sheathed communication cables for coal mines, suitable for fixed installation, and“MHYVRP”Then it is in“MHYV”On the basis of this, a copper wire braided shielding layer has been added, providing better shielding effect and suitable for places with electric fields. For the model

Communication cables for coal minesMHYVcable structure

Usage conditions for mining communication cables

Environmental temperature for mining communication cables:-40～50℃Monitoring line MHYVP1 * 8 * 7/0.52 signal shielded cable
Monthly average relative temperature of mining communication cables:95%（+25℃）
Installation and laying environment temperature for mining communication cables: ≥-10℃Monitoring line MHYVP1 * 8 * 7/0.52 signal shielded cable
Bending radius during installation of mining communication cables:MHYVTheMHJYVFor the outer diameter of the cable10Multiple, other models are cable outer diameters15times

Coaxial cables can be divided into baseband coaxial cables and broadband coaxial cables (i.e. network coaxial cables and video coaxial cables) based on their applications. Coaxial cable division50ΩBaseband cable and75ΩThere are two types of broadband cables. The baseband cable is divided into thin coaxial cable and thick coaxial cable. The baseband cable is only used for digital transmission, and the data rate can reach10Mbps.

Coaxial cables are made of hard copper wire as the core and wrapped with a layer of insulation material. This layer of insulation material is surrounded by tightly woven mesh conductors, with a protective layer covering the outside of the mesh. There are two widely used coaxial cables. one is50Ohmic cable, used for digital transmission, also known as baseband coaxial cable due to its high usage in baseband transmission; Another one is75Ohmic cable, used for analog transmission, namely broadband coaxial cable. This difference is caused by historical reasons, not by technical reasons or manufacturers.

The structure of coaxial cable gives it high bandwidth and noise suppression characteristics. The bandwidth of coaxial cables depends on the length of the cable.1kmThe cable can reach1Gb/s~2Gb/sThe data transmission rate. Longer cables can also be used, but the transmission rate needs to be reduced or intermediate amplifiers can be used. At present, coaxial cables have been largely replaced by fiber optics, but they are still widely used in wired and wireless television and certain local area networks.