pipe

Specifications

pipe is  Epoxy glass fiber reinforced entwined tube with complete specification is developed for 110kV~1,000kV composite hollow insulators, reactors, arresters, fuses, mutual inductors, on load tap changers, transformers and other high-voltage electrical equipment structures, with performance parameters reaching IEC standards, and nationally advanced level. It is entwined by uninterrupted fiber wet method;

Twining angle, ±50~55 (we can adjust twining angle to reach your mechanical performance requirement);

Fiber content (weight ratio), 70~75%; density, 2.00 g/cm3;

Water absorption, 0.01 %; axial thermal expansion coefficient, 1.8 E-05 1/K;

Glass transition temperature, 110~120 °C; chemical resisting mineral oil: excellent;

Solvent and dilute acid: good; tensile elastic modulus, axially 14,000 MPa;

Tensile strength: axially 280 MPa;

Tensile strength: annularly 600 MPa;

Compressive strength: axially 240 MPa;

Bending strength: axially 350 MPa;

Shearing strength: 150 MPa;

Relative dielectric constant: 2-3.2;

Dielectric dissipation factor: 0.003-0.015;

Partial discharge capacity≤5; insulation strength: axially 3~6 kV/mm;

 Insulation strength: radially 10~12 kV/mm;

 lightning impact: 110 KVP;

 Power frequency impact: 50 KV;

 Thermal rating: B, F and H;

 I/D: ≥5mm ;  Max O/D<500mm; length<1,500mm. The above data is only for reference, our sleeve parameters are customized according to customer demands.