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The phenomenon of wire joint heating is generally first manifested as a peculiar smell around the wire joint, which can be smelled, which is due to the heating of the wire connector so that the outer insulation layer produces odor; Secondly, there is smoke, redness at the wire joint, blackening of the outer insulation, fire, and even disconnection
.
Wire joint heating will not only cause a large amount of electrical energy loss, but also seriously affect the normal operation of electrical equipment, light line working current increased, electrical equipment life shortened, heavy will suddenly interrupt the ongoing production, scientific research, medical surgery and other activities, but also cause fire and electric shock accidents, etc.
, resulting in incalculable losses
.
Some electrical installation construction personnel often do not pay attention to the installation quality when laying wires: do not install casings where they should use insulating bushings; There is no junction box where the junction box should be used; Even at the wire joint, the twisting method is not used, but the illegal bent hook connection method
.
The contact resistance of this bent hook connection method is very large, and it continues to heat up when the power is on, which will gradually dry and carbonize the nearby wooden board, and finally burn, causing fire
.
The phenomenon of wire joint heating is generally first manifested as a peculiar smell around the wire joint, which can be smelled, which is due to the heating of the wire connector so that the outer insulation layer produces odor; Secondly, there is smoke, redness at the wire joint, blackening of the outer insulation, fire, and even disconnection
.
Wire joint heating will not only cause a large amount of electrical energy loss, but also seriously affect the normal operation of electrical equipment, light line working current increased, electrical equipment life shortened, heavy will suddenly interrupt the ongoing production, scientific research, medical surgery and other activities, but also cause fire and electric shock accidents, etc.
, resulting in incalculable losses
.
Some electrical installation construction personnel often do not pay attention to the installation quality when laying wires: do not install casings where they should use insulating bushings; There is no junction box where the junction box should be used; Even at the wire joint, the twisting method is not used, but the illegal bent hook connection method
.
The contact resistance of this bent hook connection method is very large, and it continues to heat up when the power is on, which will gradually dry and carbonize the nearby wooden board, and finally burn, causing fire
.