What's the difference between the first working ticket and the second working ticket?

The answer on the first floor is wrong, and the working ticket is divided into the first working ticket for substation (power plant) and the first working ticket for power cable; The second working ticket for substation (power plant) and the second working ticket for power cable; Substation (power plant) live working ticket, accident emergency repair ticket and substation (power plant) switching operation ticket. The biggest difference between one kind of ticket and two kinds of tickets lies in whether it is necessary to carry out power outage operation, one kind of ticket is opened for the operation that needs power outage, and two kinds of tickets are opened for the operation that does not need power outage. Open the "Switching Operation Ticket" for road brake operation. Don't talk nonsense if you don't know what's in the Electricity Safety Regulations, and you can't joke about safety work.