Porcelain is a ceramic pillars Insulator Insulator, the pillar of porcelain Insulator is a special insulation controls, can play an important role in the overhead transmission lines.Today we take a look at the main features and characteristics of the pillars of porcelain Insulator rupture accident analysis related content.
A pillar of the characteristics of porcelain Insulator
1.Porcelain Insulator pillars are in line with GB8287.1 “pillar of porcelain high-voltage Insulator technology” and GB12744, “Fog type outdoor rod post porcelain Insulator” requirement;
2.Ceramic Insulator high mechanical strength pillar, dispersion is small, safe and reliable operation;
3.Pillars of porcelain Insulator good low-temperature mechanical properties;
4.Excellent stain resistance;
5.High levels of earthquake-resistant;
6.Radio interference is low;
Second, the pillar of porcelain Insulator rupture accident analysis features
(1) Normal low intensity (4kN) occur more Insulator porcelain fracture, fewer high-strength porcelain (8kN and above) in question;
(2) fracture accidents have occurred throughout the country, broken accident area, the North than the South, especially in the most northeastern region, followed by North China;
(3) high-pressure struts porcelain Insulator Rupture mainly in 220kV, 110kV and a 66kV voltage level, among which the most 220kV, accounting for more than half;
(4) high-pressure equipment support strut Insulator main busbar disconnector and fracture accidents involving disconnector about 80% or more;
(5) Rupture on Insulator, in the lower portion have occurred, and wherein the portion up to the fault, followed by the upper, middle (upper or lower section of the lower portion of the upper section) minimum;
(6) fracture accidents are more than 95% occurs between the inner flange opening 3 cm to shed.
(7) Rupture occurs often accompanied by sudden changes of temperature, wind speed or the like larger harsh conditions, and many accidents in the opening and closing operation time.
These are the pillars on the characteristics of porcelain Insulator analysis and fracture characteristics of accidents related content introduced.It summed up the characteristics of high mechanical strength, good stability, stain resistance, earthquake.Pillars of porcelain Insulator breakage characteristics of accidents conclusion is that the reason the region, reason voltage, temperature, and other reasons.I hope this help everyone.
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