What problems are likely to arise with electronic wire connectors?

Easy to produce touch line: wire are generally insulated shelter, as long as the insulation is not destroyed, although the two lines touch, will not produce difficulties. Wire joints standardized, electrical joints, cable joints, terminal joints do not standardize the accidents caused by endless, the reason is that many electrical placement of construction workers in the laying of wires, often careless placement of quality: should be insulated casing is not installed at the casing; should be used at the junction box is not equipped with a junction box; resulting in power on the interface of the successive fever, so that the surrounding boards are gradually drying, carbonized, and then Produce burning, causing fire.

1, the joints are prone to accidents on the cause of the electrical line is always a lot of joints such as wires and wires, wires and switches, wires and electrical appliances junction stakes, wires and shelters joints and other parts of these joints with the other parts of the wire is not the same as in the joints, the insulation layer is peeled off, if the wrapping of the cloth wrap is not good and the two wires touch each other, which may constitute a short-circuit, fever, or electric sparks 2, Easily due to excessive contact resistance and fever joints real-time use of different types of measures, but also can not do " seamless " if the contact area is less than the cross-sectional area of the conductor, then according to the resistance and the conductive area is inversely proportional to the reason can be seen, the smaller the junction point of the contact area, the greater the resistance; resistance is greater, the more prone to fever, so the joints are always more than the conductor of the other parts of the easy to fever if the joints are of good quality, resulting in the heat. The heat is not large, good heat dissipation prerequisites, the heat is quickly phased out, the joint temperature does not rise too high and cause accidents Conversely, the possibility of causing accidents is very large wire with hooked joints, then the contact area of the wire is equivalent to the cross-sectional area of 1/8 of the wire, so that the resistance of the joint parts are 8 times the amount of other places, the amount of fever is also similar to 8 times the amount of accidents are prone to this part of the other, hooked joints, in the Outside the vibration of the phenomenon, but also shows the situation when broken, that may show sparks, it is easy to cause the surrounding combustible burning because the joint contact resistance is too large, may also produce high temperatures, can make the metal conductor discoloration and even melting, causing the conductor insulation layer on fire and other material burning, into a fire accident, 3, caused by the linkage of the head of the contact resistance of the cause of the large 4, poor placement quality (1) linkage The wire is not stranded according to regulations, and even hook method of coupling, the joints of the joints will not be firm, easy to produce loose a cotton processing plant, the top of the boredom (roof mezzanine air cabinet) of the wire is also the use of crooked hook method of coupling a time, because of the rats in the boredom within the top of the walk, touching the joints of the wires, the joints to loosen the electric sparks, caused by the top of the boredom in the wadding fire, the fire along the wires to rapidly extend the burn, into a serious Fire accident (2) wire and switches, electrical appliances through the line post linkage, due to the construction of sloppy, no washers on the terminal, the gong cap is not tightened, which will also make the contact resistance increases such as a hotel, distribution box because of such reasons, resulting in conductor melting, molten beads fall on the cardboard box below, causing a fire (3) Copper and aluminum wires are not in accordance with the provisions of the implementation of the method of linkage, is often in bed with the same, the contact resistance Is also relatively large, resulting in hidden trouble (4) multi-stranded wire core is not stranded, part of the hairline (core) warped, touch each other constitute a short circuit than a department store in the installation of electrical outlets, did not stranded multi-stranded copper-core wire, the results of some of the copper wire warped exposed to touch the other phase line, the power generated by the short-circuit, resulting in a fire (5) construction of the phase joints are not staggered in a unified cross-section of accidents will be caused by such a Gin factory stack a mobile crane illegal use of joints in the wire truck into the warehouse unloading, the wire joints pull off the joints between the phase short-circuit, resulting in electrical sparks, caused by jute burning, causing a serious accident 5, long-term open joints loose some of the joints in the placement of quality is relatively good, but because of thermal expansion and contraction of the reason, or long-term vibration, will make the joints loose, such as a bridge abutment Fort within the electrical Line, because vehicles across the bridge often produce violent vibration, so that the joints of the wire slowly loosening, contact resistance slowly become larger and larger, more and more serious fever, resulting in a fire 6, the conductor junction oxidation in the wet and corrosive air in the ecology, the conductor is prone to generate a layer of oxidized layer (in the copper conductor on the copper oxide, aluminum conductor on the aluminum oxide is more likely to be generated) the conductivity of such oxides Function is very poor than, a factory plating workshop, conductor long-term acidic air corrosion, conductor in the appearance of the oxide layer, resulting in increased contact resistance, high temperature after power, serious conductor and even red Luckily, feel real-time, and then did not turn into an accident 7, dust contamination in the construction site, threshing plants and other open-air places, there is often soil, dust penetrates into the conductor's junction, interfering with the conductor between contact, making the junction overloaded. So that the joints overheating, caused by the burning of combustible objects around the grain mill on some of the electrical fires is the result of 8, to prevent accidents at the joints measures 9, to minimize the joints often drag the use of wire, should be used as a whole wire, should not be left in the middle of the joints other than in the first place, such as the house of the boredom of the top of the house, do not have the joints.

Beware of the quality of the joints (1) wire coupling to meet the specifications as much as possible to increase the wire coupling at the contact surface, to stop the use of hooked coupling method of implementation of the coupling with the terminal, first of all, multi-stranded wire stranded, no hair exposed, and the need to bend the wire into a ring, set on the terminal, pad washer screws, gong cap should be tightened. (2) Beware of coupling methods large cross-section wire, aluminum core wire coupling easy to use welding method or crimping method (crimping method can be coated with conductive paste) copper and aluminum wires are easy to use at the copper-aluminum transition joints; also in the copper-aluminum junction pad a layer of coated with a thin piece of tin copper, or in the copper nose tin-lined, and then with the aluminum wire coupling, the implementation of such methods to reduce the contact resistance. (3) electronic wire joint position staggering the joints of the various phases of the wire to be staggered, joints outside the package of good black tape large cross-sectional area of the wire, inside the first package on the yellow wax cloth or yellow wax silk, to promote the insulation function, in the electrical construction can not be a fluke, we must take precautionary care of the above links, to prevent the electrical junction of the contact is poor to stimulate the generation of fire accidents.

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