Electrical and mechanical properties are the basic properties of pillar insulators, which together establish the voltage protection function of pillar insulators.
Electrical performance: Electrical performance in prop insulators is represented by destructive discharge along the insulating surface. Different pillar insulators need to withstand different voltages, so in order to avoid the breakdown of the insulating materials of pillar insulators in high voltage, they need to undergo certain spark experiments before leaving the factory. That is to say, a certain high voltage is applied on the insulation surface to make the insulation surface mode generate sparks in the case of lightning weather. After a certain time of compression, the insulation surface will be broken down.
Mechanical properties: pillar insulators are often affected by various forces during use, such as wind and gravity. If the mechanical performance of the pillar insulator is not up to standard, it may be affected by the force, resulting in a certain displacement or even damage, which greatly affects the safety performance of the pillar insulator. Therefore, there are certain requirements for mechanical properties in the specification of manufacturing pillar insulators.
