Basic knowledge of electricity safety: the training should include basic knowledge of electricity safety, such as the basic concepts of voltage, current, resistance, electricity and electromagnetic field, the basic composition and operation principle of power system.
Electrical equipment and operating specifications of the sentry box: The electrical equipment training of the sentry box should also include specific electrical equipment and operating specifications. This includes the operation and maintenance specifications of switchgear, protective devices, measuring instruments, control systems and other equipment in the power system.