Harness connector problems and what are the reasons

Electrical connectors, cable connectors, terminal fittings irregularities inspired by an endless stream of emergencies, the reason is that many electrical construction workers in the laying of wires, often not careful placement quality: should not be installed at the sleeve with insulating tube; should use the junction box Of the premises also did not install the junction box; lead to the connection at the time of power fever, so that the surrounding wood gradually dry, carbonized, and then incinerated, causing a fire

1, the conductor junction oxidation

In humid and air-corrupted ecosystems, an oxide layer is easily formed on the conductor (copper oxide is shown on the copper wire and aluminum oxide is more likely to be formed on the aluminum wire). The conductivity of such oxides is very poor, Plant electroplating workshop, long-term acid corrosion of air conductors, the conductor in the appearance of the oxide layer, resulting in increased contact resistance, high temperature after power has occurred, in severe red and red wire thanks to real-time, and then did not become an accident.

2, dust pollution

On construction sites, threshing plants and other open-air spaces often contain soils and dust that seep into the conductor junctions, interfering with the contact between the conductors, overheating the junctions and causing incineration of flammable objects around them. This is where some of the electrical fires come from

3, to prevent accidents at the joint measures

4, to minimize the wire connector

Often drag the use of wires, it is necessary to use the entire root of the wire, the middle should not leave the connector in the first place, such as the stuffy ceiling, do not have joints.

6, long-term open connector loose

Some joints in the placement of the quality is better, but because of thermal expansion and contraction of the reason, or long-term vibration, will make loose joints such as a bridge bridge electrical circuit, because the vehicle often violent vibration occurs when crossing the bridge, Make the joint of the wire slowly loosen, the contact resistance becomes bigger and bigger, the fever is more and more serious.

7, the joints easily cause accidents

There are always many junctions on the electrical wiring such as wires and wires, wires and switches, wires and appliances, wiring terminations, wires and shelter junctions, etc. These joints are different from the rest of the wire in Joints, the insulation layer is stripped, if the package wrapped poor and produce two-line collision, it may constitute a short circuit, fever or spark.