The common problem of the metal cable gland

Causes of joint heating(metal cable gland)

Some electrical installation workers(metal cable gland) often do not pay attention to the installation quality when laying wires: do not install sleeves where insulating sleeves should be used; There is no junction box where the junction box should be used; Even at the wire joint, the illegal hook connection method is not adopted. The contact resistance of this hook connection method is very large, and the continuous heating during power on will gradually dry and carbonize the nearby wood plates, and finally burn and cause fire.

Hot wire connection(metal cable gland) will not only cause a lot of power loss, but also seriously affect the normal operation of electrical equipment. At least, the working current in the line will increase and the service life of electrical equipment will be shortened. At worst, it will suddenly interrupt the ongoing production, scientific research, medical surgery and other activities, but also lead to fire and electric shock accidents, resulting in incalculable losses