High voltage porcelain insulators are often has the large weight for applying for in high voltage lines.

High voltage porcelain insulators in high-voltage systems need to withstand high and widely changing loads. Under extremely a detrimental environmental situation, the electric insulating and mechanical capability must be ensure to operate normally. Different factors will determine the different specific shape,

High voltage porcelain insulators are made to satisfied the requirements:
1.exposed to tensile loading
2.line-post insulators subject to compression and bending moments.

Most electric power transmission and distribution is done via overhead lines, with High voltage porcelain insulators providing mechanical support and electrical protection. The size and specific design of High voltage porcelain insulators will different according to line tension, environmental conditions, materials and producer.

Porcelain has the long history to be the material of High voltage porcelain insulators.

The disadvantages of porcelain designs are well known. However, for one is very important is the High voltage porcelain insulators are so easy to breakage during transportation and installation alone.

High voltage porcelain insulators usually have large volume, compared to the low voltage insulator.

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