* Circular solid conductors (Class 1).
Conductors including 16 Sqmm circular stranded (Class 2).
25 Sqmm and above shaped stranded conductors (Class 2).
Cables upto and including 16 Sqmm conform to IEC 60502 - 1.
From 16 Sqmm upto and including 400 Sqmm conform generally to BS 5467 .
500 Sqmm Cable conform to IEC 60502 - 1.