Each and every cable LT or HT comes with a Construction code which denotes the various types of materials used in it.
This coding is according to Indian standards.
Take an example A2XWY is the code for L.T cable shown in below Fig.
1.1KV L.T CABLE
A2XWY is depicted as
A = Aluminium Conductor
2X= Cross-linked Polyethylene
W = Steel Round Wire Armour
Y = PVC Outer Sheath
Take an example A2XCEWY is the code for H.T cable shown in below Fig.
11 KV H.T Cable
A2XCEWY is depicted as
A = Aluminium Conductor
2X= Cross-linked Polyethylene
CE= Copper Metallic Screening over each individual core
W = Steel Round Wire Armour
Y = PVC Outer Sheath