7. The connection of multiple wire ends should be connected with a cold pressed end. Single stranded weak current circuit wires with a cross-sectional area of less than 1m ² should be wired using soldering or other suitable methods.
7. Cold-pressed end connection should be added for multi-guide-root wire connection, and single-strand weak current circuit wires with cross-sectional area less than 1m2 should be connected by soldering or other suitable means.