When the electric detonator is used for detonation, the connection method has three types: series connection, parallel connection and hybrid. The value of the connected line has a great influence on the electrical blasting effect. The connection between the foot line and the wire should meet the blasting requirements. The connection method is shown in Figure 1.

Figure 1 foot line, wire connection method
(α) wires are connected to each other; (b) wires are connected to the electric detonator foot line; (c) right angle connection method
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