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Insulation : It is the cover to the conductor to prevent it from outside environment and also prevent it from flowing the outside it. These are generally made of polymeric material and these are used according the the environment conditions. The cables are highly flexible which are used in fixed industrial installation as well in mobile services. Different types of cables are used at different requirement like Coaxial cables, twisted cable pair cables, etc. The color codes on the electrical cables help to identify their purpose of usage and helps in proper operation and installation. Different synthetic polymers are used for insulation. The insulation are made of polymer, plastic layer that cover the conductor it from external contacts. This arrangement removes frequency irregularities and other external interferences in devices. These are applied to isolate the signals that pass through the inner side of the cable and prevent it from external interference.

These conductor in form of a stranded wire which are insulated with a polymer (non-conductive) coating is a wire while a cable is combination of two or more shielded wired with a single cover which is used for generation, distribution and transmission of electrical power. Blue : Phase 3 or distribution of power wire. Red : Phase 2 or transmission wires. Black : Phase 1 lines are black used for power generation. They are used in ethernet networking system. There were some independent organizations that promulgated telephone standards (such as the railroads which had their own extensive telephone plants), but they were almost always completely deferential to the Bell System. In Germany, France and Belgium, another system was en vogue: chain towing. Coax are used for transmitting very high frequency signals with very less loss of energy like for appliances like radio, antennas, transmitters. Optical Pairs:- The optical file cables are made of glass surrounded by the the protective layers. These both layers in cables are separated by the insulator. These are made of insulation conductors. Usually the former refers to a single, solid metallic conductor, with or without insulation, while the latter refers to a stranded conductor or to an assembly of insulated conductors.

The most commonly used conductors are copper and aluminum. It is generally made of copper as it is easily available in nature with low cost. Cost Effective : Cables are used every where and backbone of electrical circuits. These are very important for various application like power generation, distribution and transmission. We use shielded cables used when there is some unwanted electrical noise or some electromagnetic interference that the transmission of power. These have very less probability of interference. I have a gigabit switch and I am connecting my laptop to it using a cat6 ethernet cable. To prevent the tractors from being pulled into the water by the barges, they were made very heavy, sometimes by using reinforced concrete. Make sure that each time you wind the cord around the reel, it is pulled in as tightly as possible. Otherwise in your garage, you could make use of an electric cord planner in all various other locations where you have a bunch of cables to handle. These cables are made of copper and aluminum.

The most generally use metals are copper and aluminum which are good conductor of electricity. It is specially designed for the area where risk of oils and chemical agents are present. These are used in making heavy structures like where rodents are present. The cables are generally color coded. Twisted Pairs Cables :- In this cable the two cables are twisted together and are color coded. These cables are made of aluminum or steel which are installed for risk of mechanical aggression. The cables which are used in welding should be covered with rubber sheath, which helps in flow of high current to be transmitted between the welding generator and electrode. Patch Cables :- These cables are used for connection or "Patch" with different devices. There, the F1 cable is spliced onto multiple smaller F2 cables that run along neighborhood streets. The cable is encased for its entire length in foil or wire mesh. The first solution to these problems is to keep cable lengths in buildings short since pick up and transmission are essentially proportional to the length of the cable. For historic reasons, telephone switches are mostly frame-positive.

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