DATA LAN CABLES
Ocak 21, 2020WHAT IS LOW VOLTAGE?
Ocak 21, 2020Coaxial Cables
Coaxial cables, which are a type of cable used in radio frequencies, are used as distribution cables in indoor CATV and CTV systems and as connection cables in SATV satellite antenna systems where low attenuation is required. This cable consists of 4 cross sections. There is a line with the innermost signal. This conductive end is surrounded by a dielectric constant high insulator. There is also a mesh consisting of conductors around this insulator. The outermost is the last layer that protects them all. It is very important that the braid inside is grounded. In this way, it can pass near the devices that create electromagnetic fields that affect the cable. It carries alternating current in coaxial cables like normal electrical cables.
Cable Structure
The conductor in the middle of the cable is usually made of metal composed of copper or other conductors. The dielectric constant and the size of the insulator around it is very important as it determines the electrical properties of the cable. This insulator is generally produced from Polyethylene (PE) or Teflon (PTFE). The outer conductor is usually in the form of a braid from conductive wires. The physical thickness of the strands affects the electrical values of the cable. In addition, not having too much knitting brings an upper limit to the frequency that can be carried. For this reason, it is preferred to use very thin metal sheets as the outer conductor. However, metal foils are not as suitable as knitting for bending and twisting. In addition, this preference may increase the cable price. The protective outer sheath provides protection of the cable. Generally, a substance such as PVC is used. You can visit www.mekaskablo.com regarding our other products.
