Electrical Insulating 380 Phenolic Cotton Cloth Tube

Electrical Insulating 380 Phenolic Cotton Cloth Tube

Introduction: Basic Materials: specialized cotton cloth phenolic resin Specifications: Performance: higher mechanical strength properties, wear resistance, low water absorption rate Application: It has higher radial tensile strength,  and can be u……

Introduction:

Basic Materials: specialized cotton cloth phenolic resin

Specifications:

Performance: higher mechanical strength properties, wear resistance, low water absorption rate

Application:

It has higher radial tensile strength,  and can be used as support structure and wear-resistance parts in seals or bears.

Technical Data:   

Basic info Standard
Chinese name 380 380A 3640/3641 355
IEC PFCC21 PFCC24 EPGC21/22
NEMA
Base material Cloth Fiberglass cloth
Resin Epoxy diphenyl ether
Color  Yellow dark brown
NO. Item Unit
1 Density g/m³ 1.2-1.3 1.7-1.8
2 Vertical layer bending strength (normal) MPa ≥138 ≥150 ≥70
3 Axial compressive strength MPa ≥118 ≥118 ≥60
4 Parallel layer breakdown voltage (90 ℃ transformer oil) KV ≥35
5 Vertical layer electrical strength (90 ℃ transformer oil) KV/mm ≥3.5 ≥3.5 ≥6-14(1)
6 Dielectric loss factor(50Hz) ≤0.03
7 Water absorption % ≤5(3mm) ≤4(3mm) ≤1
8 Temperature index 120 120 130/155
(1)Range values are measured for different thicknesses

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