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3641 Epoxy Resin Fiberglass Laminated Tube

3641 Epoxy resin Fiberglass Laminated tube description:

The glass cloth is impregnated with different resins (epoxy / diphenyl ether / polyesterimide / silicone / bismaleimide) and partially curing, then formed by hot roll baking and curing in a roll coater. Glass cloth laminated pipe has good dielectric properties and machinability. It can be used as insulation structural components for electrical equipment. Can be made into a dry-type transformer coil insulation tube and transformer insulation end.

Heat resistance is different according tot he raw material (B/F/H)GB/T 5132.1-2009 IEC61212-1:2006

3641 Epoxy resin Fiberglass Laminated tube technic data:

No.

Project

Unit

Index

3640/3641

355

356

3652

364

1

Density

g/m³

1.7-1.8

2

Vertical layer bending strength  (normality)

MPa

≥70 ≥80 ≥80 ≥80 ≥80

3

Axial compression strength

MPa

≥60 ≥70 ≥70 ≥70 ≥70

4

Parallel layer break down voltage(in 90℃ transformer oil)

Kv

≥35 ≥25 ≥25 ≥25 ≥25

5

Vertical layer electrical strength(in 90℃ transformer oil)

Kv/mm

≥6-14 ≥6-14 ≥6-14 ≥6-14 ≥6-14

6

dielectric loss factor (50Hz)

≤0.03 ≤0.03 ≤0.03 ≤0.03 ≤0.03

7

Water absorbing

%

≤1 ≤1 ≤1 ≤1 ≤1

8

Temperature index

130/155 180 180 180 180
Test data is different according to the tube thickness
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