Product Introduction：
Composite post insulators can effectively use narrow corridors to open voltage and transmit electricity. They are suitable for urban network technical transformation, can reduce the height of pole towers, and can save a lot of manpower, material and financial resources. Because of their high bending strength, they can prevent porcelain cross-arms from easily appearing The cascade fracture accident is a product that cannot be replaced by porcelain cross-arms; it is small in size, light in weight, strong in shock resistance and impact resistance, and does not require manual cleaning, providing guarantee for safe operation. This product adopts the overall rod design, compact structure, high quality, and the weight is 1/10 of the same level of porcelain and glass insulators. It is very convenient to transport and install.
Suitable for dirty areas, high mechanical tensile loads, large spans and compact lines. Pollution flashover voltage is 30%-50% higher than that of porcelain and glass insulators of the same level. The performance is stable under the ambient temperature of -60 degrees - +200 degrees; the non-breakdown design is adopted, and there is no need to measure the zero value during operation. Superior electrical performance and high mechanical strength. The tensile and flexural strength of the epoxy glass lead rods carried inside is 2 times higher than that of ordinary steel, and 8~10 times that of high-strength porcelain materials, which effectively improves the reliability of safe operation.
Good pollution resistance, good anti-pollution performance, strong anti-pollution flashover strength, its wet withstand voltage and pollution withstand voltage are 2~2.5 times that of porcelain insulators with the same creepage distance. And it does not need to be cleaned, and it can run safely in heavily polluted places.
Product parameters table:
Fig.34 72.5kv composite post insulator
General dimension and characteristic of 72.5kv composite post insulator
|
No. |
Fig. |
Type |
Rated voltage KV |
Specified mechanical Bending oad KN |
Section height H, mm |
Minimum arcing distance H,mm |
Large shed diameter D, mm |
Small shed diameter D, mm |
Shed spacing B, mm |
Minimum nominal creepage distance L, mm |
Lighting impulse withstand voltage≥ |
Wet power frequency voltage≥ |
Weight kg |
|
1 |
34 |
FZ-72.5/8 |
72.5 |
8 |
750±5 |
620 |
172 |
120 |
51 |
1300 |
400 |
130 |
10.2 |
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