As a reputed porcelain insulator manufacturer, Orient Power does all set of porcelain shackle type insulators testing in independent laboratory. Porcelain shackle type insulator is one main of porcelain insulators.

According to IEC standard, the classification of porcelain shackle type insulators testings have
◆    Design tests
◆    Type tests
◆    Sample tests
◆    Routine tests

Each classification of tests has some criterion, such as design tests have 
◆    Test specimens for IEC 62217
◆    Product specific pre-stressing for IEC 62217
◆    Assembled core load-time tests

If you want to learn more about insulator information, can visit Orient Power website.