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Showing posts from July, 2018

The Need For Power Cable And Extension Cords

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It is a type of cable which is used for transmission and distribution of the electrical energy. This power cable  consists  of two or more electrical conductors which  are joined  with an over the  sheath . It is also used for the transmission of extra high voltages in place and the overhead lines are  impractical  to use it like a sea or airfield crossing or any other things. These underground cables are said to be more costly when they are compared to any aerial cable which is for the same voltage and helps in drawing back the electrical  power  cable. How Is This Constructed?   This new power cable usually  consists  of 3 main components which are a  conductor ,  dielectric  and sheath. The conductor which is present in the cable provides the conducting path of the current. This insulation or the dielectric have withstands the service voltage and isolates the conductor with the help of other objects. This type of sheath does not allow the moisture to enter and protects the c