Causes of cable joint heating and precautions for device
During the construction of electrical equipment, when laying wires, the construction personnel do not install sleeves where insulating sleeves should be used due to human reasons; Junction boxes should be used
The junction box supplier even adopts the illegal hook connection method instead of the twisted connection method at the wire joint. The contact resistance of this hook connection method is very large, and the continuous heating during power on will gradually dry and carbonize the adjacent wood plates, and Z will eventually burn, causing the heat of fire wire connection, which 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, the service life of electrical equipment will be shortened, and at the same time, the ongoing production, scientific research Medical operations and other activities will also lead to fire and electric shock accidents, resulting in incalculable losses