Pin type insulator has three types in our company: pin insulator, tie top pin insulator and clamp top pin insulator. The function of pin Insulators used for low-voltage power distribution line and are made from glass, porcelain or composite polymer materials. The essay mainly tells us some applications and properties of porcelain pin insulator.

Porcelain pin insulator:
Porcelain pin insulator is one type of porcelain insulator, which is also called ceramic pin insulator. Porcelain pin insulator is used extensively in electrical apparatus. Porcelain pin insulator has zinc sleeve and steel head spindle in IEC standard. Ceramic pin insulator has lead head spindle and porcelain thread in ANSI thread.

Porcelain pin insulators are made from clay, quartz or alumina and feldspar, and are covered with a smooth glaze to shed water. Pin Insulators made from porcelain rich in alumina are used where high mechanical strength is a criterion. Ceramic pin insulators attract condensation and the thick irregular shapes needed for pin insulators are difficult to cast without internal strains. Some insulator manufacturers stopped making glass pin insulators in the late 1960s, switching to ceramic materials. The glass insulator was used in Russia.