What are the problems that the electronic wire connector can easily produce

source:http://www.ruiliangdianzi.com/news/809.html  Release time : 2018-05-17


1. It is easy to produce a touch line


      the wires are insulated generally, so long as the insulation is not destroyed, though the two wires collide, there will be no difficulty
. Code for connection of wires


      electrical joints, cable joints, terminal joints and non standard accidents arise in an endless stream, because many electrical resettlement workers often do not take care of the quality of placement when laying wires: there should be no casing in the insulation casing; there should be no junction boxes in the premises of the junction box; The interface continued to cause fever, which made the surrounding wood gradually dry and carbonized, and then incinerated, causing fire alarm


1. The cause of an accident at the joint Eight hundred and eighty-eight thousand one hundred and eleven       there are many connections on electrical lines, such as wires and wires, wires and switches, wiring and connection posts of electrical appliances, wires, and asylum fittings, etc. These joint parts are different from other parts of the wire but are stripped off at the joint, if the cloth is bad and produces two. When a line collide, it may cause a short circuit, a fever, or an electrical spark. Eight hundred and eighty-eight thousand one hundred and eleven Two. Fever is easy to be caused by excessive contact resistance Eight hundred and eighty-eight thousand one hundred and eleven       the joint is in real time using differential measures, and it can not do "seamless" if the contact area is less than the conductor section area, then the resistance and the conductive area are inversely proportional to the reason that the contact area of the connection point is smaller, the more resistance is, the more the resistance is, the more easily the joint at the other parts of the conductor. The quality of the joint is good, the heat produced is not very good, the heat of heat is good, the heat is quickly spread out, the connection point is not too high and the temperature is not too high. On the contrary, the possibility of the accident is a big wire connection with the hook, then the highest contact area of the wire is equivalent to the 1/8 of the guide line section area, so the connection position resistance is the other. 8 times the location, the amount of fever is similar to 8 times. This site is easy to produce accident, hook joint, and under the phenomenon of vibration outside, it will show the condition of continuous connection, it may show electric spark, it may cause the burning of the surrounding combustibles because the contact electric resistance of the joint is too large, and it may also produce high temperature, which can make metal conductor. Discoloration and even melting, causing the conductor insulation to burn and other materials to burn, become a fire accident. Eight hundred and eighty-eight thousand one hundred and eleven Three. The reason that the contact resistance of the joint is too large Eight hundred and eighty-eight thousand one hundred and eleven Four. Poor quality of resettlement Eight hundred and eighty-eight thousand one hundred and eleven       (1) the connection wire is not connected according to the regulations, and even with the hook connection, then the connection of the joint will not be strong, easy to produce a loose cotton processing field, the wire of the stuffy top (the roof interlayer empty cabinet) is also used in a curved hook joint method, as the mouse walks in the stuffy top, meets the joint of the wire and loosens the joint. An electric spark caused the ignition of the catapet in the stuffy roof, and the fire rapidly burned along the wire, which turned into a serious fire accident. Eight hundred and eighty-eight thousand one hundred and eleven       (2) wires and switches and electrical appliances are connected through wire and line columns, due to the haste of construction, no gaskets on the wiring column, and no tightening of the gongs and hats, which will also increase the contact resistance, such as a hotel, which causes the conductor to melt, and the bead falls on the cardboard box below, causing the fire alarm. Eight hundred and eighty-eight thousand one hundred and eleven       (3) copper wires and aluminum wires are not connected according to the stipulations, they are often bedfellows, and the contact resistance is relatively large. Eight hundred and eighty-eight thousand one hundred and eleven       (4) the wire core of multiple wires is not twisted well, part of the wire (wire core) is warped, and the short circuit is formed after each other. A department store does not hang a number of copper wires when they are installed in an electrical outlet. Eight hundred and eighty-eight thousand one hundred and eleven  ,  ,   (5) the phase line joint did not break off during the construction, and it would also cause an accident on a unified cross section, such as a mobile crane in a rolling mill, when a mobile crane is unloaded with a wire and truck that has a joint. It will break the joint between the wire and cause the electric spark, causing jute incineration and a serious accident. Eight hundred and eighty-eight thousand one hundred and eleven Five. Open joint loosening for a long time Eight hundred and eighty-eight thousand one hundred and eleven       some joints have good quality in resettlement, but because of heat expansion and shrinkage, or long encounter vibration, it will make the joint loose as the electric circuit in a bridge bridgehead, because it often produces violent vibration when the vehicle passes the bridge, so that the joint of the wire is slowly loosened, the contact resistance gradually becomes larger and the fever gets better. The more serious it was, it led to a fire alarm Eight hundred and eighty-eight thousand one hundred and eleven Six. Oxidizing at the junction of the conductor Eight hundred and eighty-eight thousand one hundred and eleven       in the ecology of moist and corrosive air, it is easy to produce an oxide layer on the conductor (copper wire will show copper oxide, and aluminum oxide is easier to produce alumina). The guide motor of this kind of oxide can be very poor, a factory electroplating workshop, long acid corrosion of the conductor, and the conductor in the appearance of oxidizing layer. The contact resistance is increased, resulting in a high temperature after being energized. When the wire is serious or red, it is lucky to feel the real time, and then does not become an accident. Eight hundred and eighty-eight thousand one hundred and eleven Seven, dust pollution Eight hundred and eighty-eight thousand one hundred and eleven       in the construction site, in the threshing plant and other open places, there are often soil, dust infiltration into the junction of conductors, interference between conductors, overheating the junction, and some of the electrical fire caused by the burning of flammable objects around the plant. Eight hundred and eighty-eight thousand one hundred and eleven Eight. Measures to prevent accidents at the joint Eight hundred and eighty-eight thousand one hundred and eleven Nine. To reduce the connection of the wire as much as possible Eight hundred and eighty-eight thousand one hundred and eleven Often dragging the wires to be used, the whole wire should be used. There should not be any joints in the middle. There should be no joints in the first place, such as the roof of the house. Eight hundred and eighty-eight thousand one hundred and eleven Two. The quality of the beware of the joint Eight hundred and eighty-eight thousand one hundred and eleven       (1) the connection of the wires should be made as far as possible to add the contact surface at the junction of the wires, and to stop the connection between the connection columns of the hook joint execution. First, the multi strand lines must be twisted, no hair can be exposed, and the wires must be bent into a ring, and the wires are placed on the terminals, and the gaskets and gongs should be tightened. Eight hundred and eighty-eight thousand one hundred and eleven       (2) the joint method of connecting method of large section wire and aluminum core is easy to use the welding method or the bonding method. The copper aluminum transition joint is easy to be used in the copper aluminum wire junction of the copper aluminum wire. This kind of execution method can reduce the contact resistance Eight hundred and eighty-eight thousand one hundred and eleven       (3) the joint position of the electronic wire joint should be staggered at the joint of each phase wire. The joint outside the joint should be wrapped with the large section of the black rubber cloth. It must first wrap the yellow wax cloth or the yellow wax silk to promote the insulation function. In the electrical construction, the fluke should not exist. The electrical connection is poor and the fire accident is aroused. Eight hundred and eighty-eight thousand one hundred and eleven


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