Ac arc welder (welding machine) is one of commonly used equipment, construction site at the same time, it is a high risk of electrical equipment, its operator belongs to the special operations personnel, must go through professional training, the current leakage protector is widely used to control the welding machine to get an electric shock accident have played a role, practicable "brand electric welding machine, Guangzhou Golden Elephant Industrial Group Corporation welding machine factory strictly implement relevant safety requirements production in strict accordance with the ministry of construction JGJ46-2005 construction site temporary electricity safety technical regulations, standards, ensure people's life and property safety.