Stainless steel electric heating tube electrical strength test

- May 14, 2019-

The electric strength test of stainless steel electric heating pipe, the stainless steel electric heating pipe is made of stainless steel as the sheath, the magnesium oxide rod is used as the inner core, and the magnesium oxide powder is used as the filler, and the nickel-chromium wire is used as the heating wire. It can be roughly divided into a single-head electric heating tube and a double-head electric heating tube.

 

a. Electric strength in cold state: It should be able to withstand 50Hz, 1min withstand voltage, cut off current 5mA, no breakdown, flashover phenomenon.

 

Rated voltage (250V) Test voltage (1250V)

 

b. Electrical strength at working temperature: withstand 50Hz, 1min withstand voltage, cut off current 5mA, no breakdown, flashover phenomenon.