Security wire types (7.02, 14.02, etc)

[cezar_oz]

Has anyone come across these types of security wire:

7.02 4core,
14.02 4 core,
etc:

http://eshop.ctccommunications.com.au/Cable-c-326.html


How does this relate to 18/4, 22/4 etc types that are commonly being discussed?

thanks