玻璃纤维风管道

These Tubeshave a high strength/weight ratio (the relative weight is approx.) - and also important to note is that they have properties which do not deteriorate with age. Physical, mechanical and dielectric Preformens for Epoxy Glass plates with fabrics 1:1 No. IEC 60893-3-2Properties Units EP100 EPGC201 G300-1 (2) EP200 EPGC203 G300-1 (2) EP200 EPGC306 G300-1 (2) EP200 EPGC308 G300-1 (2) Standard Typical Standard Typical Standard Typical Standard Typical 1 Water absorption ( 2mm) mg ≤ 20 12 ≤ 20 15 ≤ 20 15 ≤ 20 15 2 Flexuralstrength, Perpendicular to laminations ( lengthwise) At rom temp. MPa ≥ 340 350 ≥ 340 355 ≥ 340 355 ≥ 340 355 155°C ±2 °C ≥ 170 280 ≥ 170 280 280 3 Impact strength, parallel to laminations, Charpy, notch kJ/m² ≥ 33 55 ≥ 33 42 ≥ 33 42 42 42 4 Electric strength, perpendicular to laminations ( 3mm ) in transformer oil at 90°C ± 2°C kV/mm ≥ 11.8 14 ≥ 11.8 13 ≥ 11.8 13 ≥ 11.8 13 5 Dielectric breakdown voltage, parallel to laminations ( 25 mm ) in transformer oil at 90 °C ±2°C kV ≥ 35 45 ≥ 35 48 ≥ 35 48 ≥ 35 48 6 Dielectric dissipation factor 48 – 62 Hz [ tgδ ]≤ 0.04 0.025 ≤ 0.04 0.03 ≤ 0.04 0.03 ≤ 0.04 0.03 7 Dielectric constant [εr ] ( Dielectric Permittivity )≤ 5.5 4.9 ≤ 5.5 4.9 ≤ 5.5 4.9 ≤ 5.5 4.9 8 Insolator resistivity after immersion GΩ ≤5.0*10² 8*10³ ≤5.0*10² 6*10³ ≤5.0*10² 6*10³ ≤5.0*10² 6*10³ 9 Comparative tracking index ≥ 600 ≥ 600 ≥ 600 ≥ 600 ≥ 600 10 Flammability 11 Temperature Index ≥ 130 130 ≥ 155 200 ≥ 155 200 ≥ 180 200