Epoxy Resin Fiber Glass Winding Tube

Epoxy Resin Fiber Glass Winding Tube description:

Glass fiber yarn immersed in epoxy resin and other different proportions of insulating glue,through wet process rolling and then heating and curing. This product has high temperatureresistance H-class, with good electrical properties and mechanical Performance, low dielectric loss, non-deforming layered, chemical resistance (SF6) and other characteristics.

Widely used in H-class dry-type transformers, on-load tap switch, reactors, arresters, SF6mutual inductor and other products for the main insulator.

Epoxy Resin Fiber Glass Winding Tube technic data:

Standard:GB/T 5132.1-2009 IEC61212-1:2006

No.

Item

Unit

Value

360/EPCF52

1

density

g/m³

1.8-1.95

2

Vertical layer bending strenght(In normal)

MPa

400

3

Axial compressive strength

MPa

≥150

4

Parallel layer breakdown voltage (90℃ transformer oil)

Kv

≥40

5

Vertical layer electrical strength(90℃transformer oil)1mm

Kv/mm

≥11.6

6

After moisture surface withstand voltage kv

≥12

7

Insulation resistance after immersion Ω

≥1.0*109

8

Dielectric loss factor(50Hz)

≤0.05

9

Water absorption

%

≤1

10

Partial discharge

PC

≤5

10

Temperature index

180