Epoxy Glass Fiber Winding Tube 360 EPCF52 Description: This product adopts fiber glass yarn that is impregnated with insulation jelly made of epoxy resin and other resins by certain proportion, and then it is rolled in wet method, and dried and finally consolidated by baking. Its heat resistance level is up to Class H, and it also has excellent electrical and mechanical properties, chemical resistance (SF6), low dielectrical loss, no deformation or delamination. It can be used as main insulator on H grade dry-type transformer, load tap changer, electricâ??reactor, lightning arrestor, SF6 inductor, etc. Technical Data Standardï¼?GB/T 5132.1-2009 IEC61212-1:2006 No. Properties Unit Value 360/EPCF52 1 Density g/m1.85-2.00 2 Vertical Bending Strength (normal) MPa 400 3 Axial Compressive Strength MPa â?¥150 4 Parallel Breakdown Voltage (90 â?? of transformer oil) Kv â?¥40 5 Vertical Electrical Strength (90 â?? of transformer oil) 1mm Kv/mm â?¥11.6 6 Surface Voltage Resistance after Wetting kv â?¥12 7 Insulating Electrical Resistance after Wetting Ω â?¥1.0*10^9 8 Dielectric Loss Factor (50Hz) - â?¤0.05 9 Water Absorption ï¼? â?¤1 10 Partial Discharge PC â?¤5 11 Temperature Index - 180