Why is the earth pin larger in a three pin plug?

This video will show you how to replace, wire,re-wire, or repair the South African standard 3 pin plug. The video has step by step instructions on how to change your own plug, presented by Centurion Micro Electronics. The video also introduces the new standard SA Plug, Adapter and cables: Video: https://www.youtube.com/watch?v=HbDjBfuwIAQ IONN released a rewireable plug that conforms to the new South African SANS 164-2 standard. The plug has a slim design and a straight cable exit direction. It