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Laminated Insulation Rod

Laminated Insulation Rod

 

Epoxy glass cloth rod: 3840/3841/3841F(FR4)/3842/EPGC308 rod etc; 
Phenolic cotton cloth rod: 3721/3721-1/3722(C)/3723(CE)/3724(L)/3725(LE)
Characteristics & application:
High mechanical strength, good electrical performance, and mechanical electrical purpose.

Epoxy glass cloth rod: 3840/3841/3841F(FR4)/3842/EPGC308 rod etc; 

Phenolic cotton cloth rod: 3721/3721-1/3722(C)/3723(CE)/3724(L)/3725(LE)

Characteristics & application:

High mechanical strength, good electrical performance, and mechanical electrical purpose.

 

 

Properties

Units

Grade

Phenolic cotton-cloth rod

Epoxyglass fabric rod

3721

3721-1

3722

3723

3724

3725

3840

3841

3841F

Density      ≥

1.25

1.25

1.28

1.26

1.28

1.26

1.75

1.70

1.75

Water absorption  ≤

%

1.0

1.0

2.0

Φ13mm

1.3
Φ13mm

1.5
Φ13mm

1.1
Φ13mm

0.5
Φ13mm

0.5
Φ13mm

Flexural strength ≥

MPa

117.6

88.0

110.3

89.6

110.3

82.7

343.0

241.3

241.3

Tensile strength  ≥

MPa

78.4

196.0

Compressive strength      ≥

MPa

131.0

137.9

131.0

137.9

241.3

241.3

Insulation resistance parallel to the lamination
A         ≥
D-24/23      ≥

Ω

1.0×108

1.0×108





1.0×10101.0×107



Breakdown voltage parallel to laminations in transformer oil        ≥

KV

20±5℃
10.0

20±5℃
10.0

20±5℃10.0

20±5℃10.0

90±2℃
15.0

90±2℃15.0

90±2℃15.0

Flammability

FV0

Colour

Natural

Natural

Natural

Natural

natural

or

  black

Natural

Natural

Natural

Natural

Characteristics & Applications

For mechanical & electrical application.

For mechanical application,
but not stronger than 3721.

Similar to NEMA's c grade

Similar to NEMA's CE grade.

Similar to NEMA's L grade.

Similar to NEMA's LE grade.

Good humidity resistance.
for mechanical & electrical application.

Similar to NEMA's G-10 grade.

Similar to 3841,with good flame retardent.