Aerial Bunched Cables

"midlite" brand Aerial Bunded Cables are manufactured in conformance to IS:14255/1995 or as per customer's specification. Most of the faults in overhead power supply system occur due to failure in transmission lines, resulting in immense loss and inconvenience to consumers. The main weakness of overhead lines are that its power carrying conductors are bare. To overcome, this deficiency, Aerial Bunched Cables Systems have been introduced at many places across the world. Aerial Bunded Cables are basically a compromise construction between power cables and overhead conductors. As far as basic construction goes there are three or four power carrying conductors suitably insulated and laid around a bare or insulated weight - carrying conductor which also serves as earth/neutral conductor. The cable is hanged on tranission poles/towers as per suitabliity. Since, the cores are insulated the chances of faults reduces to a great extent.



Constructional Details:

Power and Neutral Core: The conductoris compared of H2 or H4 grade Aluminium of Class 2 Grade conforming to IS:8130/84. Popular sizes are 16 sq. mm to 95 sq. mm. The insulation is either XLPE or Polythlene as per requirements.
Messenger Conductor: These are made of either galvanized steel or aluminium alloys.
Core Identification: By embossing numbers 1,2,3 on sheath of insulated cores.

Advantages of Aerial Bunch Cables are as follows:
 > These are cheaper than power cables. 
 > Cores being insulated, the chance of power thefts are eliminated. 
 > Cores being insulated, the chance of faults due to falling of trees or birds are eliminated. 
 > These can be laid in places where, due to lack of space, power cables cannot be laid. 
 > Insulation helps to prevent corrosion of conductor. 
 > These cables are safe for crossing of telecommunication lines.
 > As these cables are laid on poles, aluminum conductor with maximum size of 95 sq. mm are normally used.

Due to above mentioned advantages these types of cables are gradually getting widespread acceptance.