The outdoor pinning Lightning protection hardware is similar to the (line) pin insulator. The difference is that the former head is glued with a metal cap, and the supported live conductor is fixed by a threaded hole in the cap and a certain fitting, and the latter generally depends on the porcelain head. The top or side slots of the part are directly tied to the wires. Therefore, the needle type Lightning protection hardware is easy to breakdown and age in use, and the operation and maintenance are complicated, the metal material consumption is large, and the volume is heavy. The pinning Lightning protection hardware voltage level is generally up to 40.5kV. At higher voltage levels, several components are connected in series to form an insulator post. Outdoor Lightning protection hardware is divided into two series according to the structure: pin-type pillar porcelain insulator and rod-shaped pillar porcelain insulator.
Outdoor Lightning protection hardware, which started production in the early 1960s in China, has produced a large number of Lightning protection hardware since the 1970s instead of needle Lightning protection hardware. The insulator is similar to the line column insulator and the porcelain cross-arm insulator, and is similar to the A-type insulator. It is not broken down during use, does not age, and is easy to operate and maintain. Rod Lightning protection hardware components generally have a voltage rating of 126kV, and are also connected in series to a higher voltage level. Rod Lightning protection hardware, also known as Solid Lightning protection hardware, is a cylindrical Lightning protection hardware.
