Custom Search

All About Electrical Cables and Wires Tutorials

A cable is a length of single conductor, generally with several wires stranded together, or two or more conductors, each provided with its own insulation and laid up together. The insulated conductors may or may not be provided with an over all protective converging. The conductor with its insulation but without mechanical protection is known as the core of the cable.
A cable consist of the following three parts.
1. Conductor: It provides conducting path of electric current.
2. Insulation: An electrical insulating medium that prevents direct contact or unsafe proximity between the conductor and other objects.
3. External protection: Protects against mechanical damage, chemical or electromechanical attact, free or any other deleterious external influences. Copper used on overhead lines is generally hard drawn for providing adequate mechanical  strength. However in case of cables, copper in annealed condition is used. Aluminum being lighter is extensively used in cables, However, joining of aluminum conductors calls for the use of special techniques and expertise.The size of conductor depends on the current rating of the conductor.Classification of Cables based on Insulation:On the basis of insulation, the cables are classified as under: Paper insulated cables:  In these cables paper is wound on the conductor in successive layers to achieve the needed dielectric strength. Such cables are manufactured in various sizes from 5 mm squared to 500 mm squared cross-section of conductor and voltage ratings up to 33kv.The cable are provided with steel armour made up of galvanised steel wires or shielding tap. The outer sheath on the cable provides protection against external forces on the cable. The metallic shielding around the conductor is used to control the electrostatic voltage stress, reduce corona effect and to decrease the thermal resistance. Metallic shielding in only 3 to 5 mm thick. Lesser thickness reduces circulating currents and power loss.

5 comments:

Adam Thomas said...

i am thaks to this business site who provide the best solutions and ideas ,if are you interested to the cables business like as - TFOCA Connector ,fiber cables ,fiber tools ,military fiber optics ,military connectors ,Tactical TFOCA Connectors ,military fiber optics assemblies so click here.....
fiber cables

Jeff Hardy said...

nice post. Now you can use this indian suppliers directory to promote cables & wires import & export business.

Gkon Electricals & Electronics Pvt. Ltd. said...

Hi there. Nice blog. You have shared useful information. Keep up the good work! This blog is really interesting and gives good details. Switchgears, Aluminium cable.

Gkon Electricals & Electronics Pvt. Ltd. said...

Hello, I love reading through your blog, I wanted to leave a little comment to support you and wish you a good continuation. Wish you best of luck for all your best efforts. aluminium cable manufacturers, aluminium cable manufacturers in India.

Lewis falkner said...

Electric cables contains three parts. one is conductor it provides way for electric current. Most peoples will use copper wires.

Philatron Cable Manufacturer

Search This Blog

Related Posts Plugin for WordPress, Blogger...
Custom Search

Latest post

There was an error in this gadget
Christian Song and Lyrics By Alphabetical : A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
The author did not upload any of them or hosting file to the server. The author is not responsible for any kind of copyright violation. Its all free to download but it is highly recommended to buy the product from the original owner or publisher. Thank and God Bless you all.