The connection methods of PVC pipe mainly include seal rubber ring, bonding and flange connection. Rubber pipes are generally used for pipes with a diameter of 100mm or more; adhesive joints are generally used for pipes with a diameter of less than 100mm, and

The dirty appearance of the PVC insulation sleeve will reduce the flashover voltage (that is, the low voltage of the flashover). If the dirty appearance is wet, the flashover voltage will be lowered. If there is a certain value of overvoltage in the circuit Invasion, causi