Brief instruction:

Which material is mostly preferred for transformer bushing?

Bushings are typically made from porcelain, though other insulating materials are also used.

What is porcelain bushing?

A simple non-condenser bushing for low voltage and medium voltage applications may be 

a rod of conducting material inserted into a porcelain tube. This has a central current-carrying bolt,

 usually of copper, and the insulation is provided by a combination of the porcelain shell and the transformer oil.

What is bushing used to avoid?

Bushings, (sometimes called plain bearings, plain bushings, or sleeve bearings) reduce friction 

between two surfaces sliding against each other.

What is bushing(e.g.our porcelain bushing) thickness?

Thick-walled bronze bushings feature a standard wall thickness between 0.0625 and 0.156 inches.

 In comparison, the wall thickness of a plastic bushing is much thinner, typically anywhere from 0.0468 to 0.0625 inches.

Technical parameters:

What is meant by ANSI standards?

ANSI (American National Standards Institute) is the main organization supporting the development of 

technology standards in the United States. ANSI works with industry groups, 

and it is the U.S. member of the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC).