Beijing Red Sun Composite Material Co., Ltd.

Electrical Insulating Paperboard, Electrical Material, Insulating Material manufacturer / supplier in China, offering Electrical Insulating Paperboard B, Phenolic Cotton Cloth Rod, 6640 (NMN) Polyaramid Fiber Paper Flexible Laminates and so on.

Supplier Homepage Product List Wood and Paper Laminate Electrical Insulating Paperboard B

Electrical Insulating Paperboard B

FOB Price: Get Latest Price
Transport Package: Cartoon & Pallet
Payment Terms: L/C, T/T or Others

Request a custom order and have something just for you!

Send Customized Request

Basic Info.

Trademark:Redsun
Origin:China

Product Description

Transformer pressboards are made with pre-compressed grade unbleached sulphate wood pulp, with characteristics of high mechanical, electrical strength, tensile strength, high elongation, low compressibility and proper bending resistance.The excellent properties realized wide-spread application in electrical transmission and distribution equipments like power transformers, shunt Reactors, instrument transformers.etc.
NO. Items Unit Standard Data Test Result
1 Thickness Tolerance                   % ±7.5 2
2 Elongation Lengthwise % ≥3.0 5.75
Widthwise ≥4.0 5.45
3 Tensile Strength           Lengthwise N/m 2 ≥ 100 105.8
Widthwise ≥75 82.5
4 Shrinkage Lengthwise % ≤0.5 0.48
Widthwise ≤0.7 0.6
Thickness  ≤5.0 4.7
5 Electric strength (in Oil),     Kv/mm ≥40 41.5
6 Ash Content   % ≤ 1.0 0.53
7 Oil absorption % ≥11.0 23.52
8 PH value of aqueous extract    - 6-9 7.23
9 Conductivity of aqueous extract    Ms/m ≤5.0 4.8
10 Moisture Content   % ≤6.0 5.8
11 Density              g/cm 3 1.00-1.25 1.08
12 Reference Standard - IEC60641-3-1:1992 -
13 Test Sample Thickness mm - 1.0
 
Send your message to this supplier
Avatar
Ms. Liu Hui
Marketing Manager
*From
To Ms. Liu Hui
*Message
Enter between 20 to 4,000 characters.
This is not what you are looking for? Post a Sourcing Request Now
Find Similar Products By Category:

Beijing Red Sun Composite Material Co., Ltd.

- Beijing, China
- Manufacturer/Factory

Gold Member Since 2011
Audited Supplier
  • Sample Available
  • OEM/ODM Service