IEEE standards for cables

how can I obtain the IEEE standards or IEC or NEC standards for cables?
I need for my graduation project

 

Here is a list of cable related standards:
http://caledonian-cables.com/product/Technical Lib/IEC cable standards.htm

To get the actual standards, you will need to buy them. Or check with your learning institution if they have the relevant standards or some kind of subscription that allows you to download the standards free of charge.