Lightning arrester insulation sleeve

The lightning arrester insulation sleeve is made of uninterrupted fiber wet winding, which is specially developed for the structural parts of high-voltage electrical equipment such as reactors, arresters, fuses, transformers, on-load tap-changers, and transformers. The product performance parameters meet the requirements of IEC standards.

Basic parameters of lightning arrester insulation sleeve:

1: Winding angle, 45～65 (the winding angle can be adjusted according to different requirements to achieve better mechanical performance requirements);

2: Fiber content (weight ratio), 70～75%;

3: Density, 2.00 g/cm3;

4: Water absorption rate, less than 0.03%;

5: Axial thermal expansion coefficient, 1.8 E-05 1/K;

6: Glass transition temperature, 110～120 ℃;

7: Chemical resistance. Mineral oil: excellent;

8: Solvent and dilute acid: excellent;

9: Tensile modulus of elasticity, axial 14000 MPa;

10: Tensile strength; axial 280 MPa; circumferential 600 MPa;

11: Shear strength: 150 MPa;

12: Flexural strength: 350 MPa in axial direction;

13: Compressive strength: axial 240 MPa;