How does the electric detonation method work?

The electric detonation method should be carried out as follows:

1. After the detonator is inspected, the wire is short-circuited. It is best to wrap the short-circuit head with industrial tape, put it into a special box, transport it to the blasting site according to the design requirements, and then distribute it to the position of each blasthole according to the site layout. When loading the medicine, it is necessary to prevent the broken foot line and ensure that the foot line extends straight.

2. When connecting to the network, the operator must follow the design wiring. The connected person shall not use the charged lighting. After connecting one unit, immediately detect one unit and proceed to the direction of the blasting station. The wiring personnel should ensure that the line joints are in good contact, the joints are firm, and the exposed joints are separated by a sufficient distance. They are not allowed to contact each other, and the joints are not exposed to mineral rock or water. Wrap the insulating tape.

After the entire network is connected, there should be a special person to review according to the design.

Third, the electrical explosion network resistance check and troubleshooting. Before the main line of the blasting is connected with the detonating power source or the detonator, the total resistance value of the whole line must be measured. The total resistance value should be consistent with the calculated value (error ± 5%). If not, the connection is prohibited.

If there is a fault, the one-half elimination method can be used to divide the whole network into two parts, and the two parts of the resistance are measured separately. Compared with the design calculation resistance, the calculation is for the normal area, and vice versa for the fault area, and then the fault area. Divided into two, so continue to narrow the scope until the point of failure is found and excluded.

Fourth, the selection of the detonation station, using the detonator to detonate, relatively flexible and flexible, when the AC power supply is detonated, the dedicated power supply is fixed, a special detonation box must be set in advance, and the power supply is not used for other purposes when it is detonated. Regardless of the type of detonation, the latching detonation power supply must be strictly enforced, and the key to lock the wooden box should be carried by the person responsible for the blasting and must not be transferred to others.

When detonating, there must be clearly defined instructions and operating procedures and safety signals.