Hydraulic pipe machine

ac motor Lamination 220v class B/F 

Specifications
1. Lamination of electric motor 
2. IP54 class F 
3. 100% copper 
4. silicon steel stamping 

5. stunning performance 
Withstand voltage test (puncture test) is a test electrical appliances, electrical equipment, electrical equipment, electrical wiring and electrical safety equipment such as one of the main methods of ability to withstand overvoltage. The division of frequency withstand voltage test and two kinds of dc withstand voltage test. Power frequency withstand voltage test the permanent magnet motors for sale test voltage for the participants equipment more than one times to several times the rated voltage, not less than 1000 v. The pressure time: for porcelain and liquid as the main equipment of electric motor low rpm the insulation for 1 minute, for organic solid as the main equipment of the insulation for 5 minutes, for the voltage transformer is three minutes, for oil-immersed power cable for 10 minutes. Dc withstand motor electric voltage test can be passed the test of the different voltage when the value of leakage current and leakage current - voltage characteristic curve drawing. Electrical equipment by the withstand voltage test can find a local insulation defects, be affected with damp be affected with damp and aging.