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Wire connection is a basic process of electrical work, but also an important process. The quality of wire connection is directly related to whether the whole line can run safely and reliably for a long time. The basic requirements for wire connection are: solid and reliable connection, small joint resistance, high mechanical strength, corrosion resistance and oxidation resistance, good electrical insulation performance.

1, the first connection. Note: there should be no joint in the home improvement, especially in the inline tube, there should be no joint, if there is a joint should also be in the cable box. The usual wire joint is such a connection, in order to ensure that the wire joint does not occur spark, short circuit, and poor contact. The core wires to be connected are twisted together tightly. Copper wire is commonly twisted connection. Then, wrap each wire closely on the other core wire for 5 to 6 times and cut off the excess wire.

2. The second connection method, fireproof tape isolation method, is mostly used in the hanging item, or relatively high energy projects, the main line can not be broken, the line around the main line 6-8 weeks, the spotlights in the ceiling, there must be many lights along the way is such a connection method, with fireproof tape wrapped in it, its role is to prevent the electric spark from burning things, which is very important in the ceiling. Wrap the outside with insulating tape.

3. The third connection method is the pressure wire wiring method, this method is the most standardized and most practical, but it needs special tools to do, the pressure wire clamp to press the wire, the special pliers used to press the wire, set on the pressure wire, and press firmly on the line. The size of the wire riser according to the size of the wire and the number of roots commonly used is T4, that is, the diameter of millimeter, can press four four square millimeters of wire.