Types of Cable

Types of cables

There are following cables as per operating voltages.

( a ) Low Tension cable : Operating voltage up to 1 kV

There are two types of low tension cable

• Single core
• Multi core

( b ) High Tension Cable : Operating voltage up to 11 kV

( c ) Super Tension Cable : Operating voltage up to 33 kV

There are three types of Super tension cables

• H type / Screened type
• SL types
• HSL type ( Combination of H type and SL type )

( d ) Extra High Tension Cable : Operating voltage up to 66 kV

The Extra high tension cable may be Oil filled or Gas filled.

( A ) Oil filled cable : There are three types of oil filled cables.

• Single core
• Single core sheath channel
• Three core filler space channel

( B ) Gas filled cable

The Gas filled cable may be further classified as 

• External pressure cable
• Internal pressure cable 

The internal pressure cable is further classified as

( 1 ) High pressure gas filled cable

( 2 ) Gas cushion cable

( 3 ) Impregnated pressure cable

( e ) Extra Super Voltage Power Cable : Operating voltage of 132 kV and above

You may also like :

Power Distribution Companies In INDIA

ACS – ARR Gap and AT & C Losses

Ultra Mega Power Plant In India

Transmission Line Map of India