3640 epoxy-phenolic glass cloth laminated tube

Tihs product have good mechanical and electrical properties, and suitable for manufacture of insulation structural parts in class B-F electrical machines and appliances, and can be used in transformer oil and moist environment. Specification: Item Uint Value Density g/cm ≥1.4 Compression Strength Mpa ≥70 Shearing Strength Mpa ≥15 Bending Strength Mpa ≥180 Parallel to laminate Resistivity Normal state Mega Ohm 1.0x10¹º After Immersed in water 1.0x10 Surface breakdown voltage KV ≥12 Parallel to laminate breakdown voltage ( in transformer oil of 90±2ºC) KV ≥25 Perpendicular to laminate breakdown voltage (in transformer oil of 90±2ºC) Wall thickness KV ID(mm) 6-25 ≥26 1.5mm ≥7 ≥12 2.0mm ≥10 ≥14 2.5mm ≥13 ≥16 3.0mm ≥15 ≥18 Water absorbtion rate % ≤0.10