Termination edited

Termination,
Plug Top 5 Amp/240 Volt,
Socket Outlet 5 Amp / 240 Volt,
Straight Joint of 7/20 Cable,
Tee Joint of 7/20 Cable,
Straight Joint of 1/18 Cable,
Pig tail Joint of 1/18 Cable,
Soldering on Joints of Cable ,
SWG,
Micrometer / Screwgauge,
Crimping tool to crimp lug,
Joints of Bare Conductors,
Britannia Straight Joint of Bare Conductor ,
Western union Joint Bare Conductors,
What is the reason of thick and Long Earth Pin of plug top and socket outlet