What is the difference between suspension insulator and string insulator?

Insulator strings are a common component in the power industry and are used on power transmission lines.

It usually consists of multiple insulators connected together by metal or composite tensile wires or other fixtures. The primary function of insulator strings is to support and secure electrical transmission lines while preventing electrical short circuits or leakage between the power lines and supporting structures, such as electrical transmission towers.

Suspension Insulator is a common electric power transmission line component. It is commonly used to suspend power conductors or optical fiber power lines (OPGW) on electrical transmission towers to support and simultaneously insulate the power lines.

Their application scope is different. Suspension insulators are mainly used in medium and high voltage power transmission systems, such as 110kV, 220kV, 500kV and other voltage level transmission lines.

The application range of insulator strings is wider and can cover various power lines and equipment from medium and low voltage power distribution systems to high voltage transmission systems.

In summary, suspension insulators are a specific type of insulator string whose main function is to suspend and insulate power conductors on power transmission towers, while insulator strings are a more general concept that can include many different types of insulator combinations. Used to support, insulate or isolate the different components and connections in an electrical power transmission system.