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The insulation are made of polymer, plastic layer that cover the conductor it from external contacts. These cables consist of a conduction core which is surrounded by the some other conducting layer. These cables are made of highly conducting material such as copper and aluminum which are easily available in nature. These cables are made of aluminum or steel which are installed for risk of mechanical aggression. 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. Shielding or Armor : It is the external protection of the conductor against the temperature, sun, rain etc. These are generally made of polymeric material. The complete setup is given an outer protection. Protection or Outer Sheath : In current time every cable have an outer sheath is used of protecting the cable. Experience about this time had established that a cable from the commencement of its manufacture to the time of its being laid should be tested under water and under pressure, and kept as much as possible under all the conditions in which it was meant to continue.

The special experts have selected cities on a basis of an estimate of population made at the time the compilation of the tables was begun. 67 cents. It will surprise many to learn that in operation both cable and electric railways show a greater economy than railways operated by animal power; but in the full tables given in the bulletins it is noticeable that electric railways which have the least expense per car mile have the greatest expense per passenger carried. The relative economy of cable, electric, and animal motive power has been brought out by the census officers, but the superintendent remarks, in issuing the bulletins on this subject, that it is still too early to form a final judgment regarding the value of electric motive power for street railways; yet he feels that the statistics presented, being, as they are, a record of actual experience, throw considerable light upon the matter of economy.

Blue : Phase 3 or distribution of power wire. These are perfectly used for transportation and distribution of energy. These cables works on the principal of total internal refection (TIR) for transmitting light due to this it have almost zero energy dissipation. Coax are used for transmitting very high frequency signals with very less loss of energy like for appliances like radio, antennas, what is electric cable transmitters. These are used in making heavy structures like where rodents are present. The question of rapid transit in cities, therefore, becomes one not only of great interest in the study of the movement of population at the present time, but one of prime necessity for the consideration of municipal governments. It is probably true that by a slight reduction from a five-cent fare the head of a family engaged in mechanical labor, earning perhaps five or six hundred dollars per annum, might save enough to pay taxes, or to offset church and society assessments, or to furnish his family with boots and shoes, in any event extending his power pro tanto for the elevation of his family; but he does more than this when speed is taken into consideration. Overall the electrical cables are important for efficiently transportation of electrical power in every sectors.

Internet Cables:- These cables are ethernet cables. Ethernet cables are used for connecting a device or any game console to a modem. They are used in ethernet networking system. 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. Tinning was used to help removal of rubber insulation. 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 basic and fundamental ratings that are assigned to an electrical cables is voltage rating. It is also a medium voltage category cable which is also halogen and non-flammable. This is a medium voltage cable with XLPE insulation, halogen free and non flammable. It a medium voltage carrying cables designed for special applications. 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.