How to read cable specs?

the 17 means the nos number of the cable, and the 0.16 is the square of each nos of the internal copper wire, SBCU is the kind of copper wire. X2 means the core quantity of the cable.

I'm a little confused over here.

17 means the numbers of the copper wire right? So 0.16 is the square of the internal copper wire. So it means the cross sectional area is 0.16 x pie x 17 cables right? For AWG 22, the cross sectional area is 0.326mm square. So which one is correct?

There is a difference between "linear millimetres, squared", and "square millimetres".

1) 17 x 0.16mm² = 2.72mm². Which will carry somewhere north of 25A-ish without getting too excited.

2) (0.326mm)² = 0.11mm². Which is a good size for a 0.5A fuse, maybe smaller.

2.72/0.11 = factor of around 25 between the two numbers. So, without having stated the context in the original post, which area is correct?

Yes, 17/0.16 refers to 17 copper wire with 0.16mm diamer and '2' means 2 number of parallel wires.

Thanking you.