Basic Info.
Tensile Strength
35-110n/M2
Sheet Dimension
1000mm*2000mm,2100mm*4200mm,or as Your Request
OEM,ODM Service
Avaliable
Transport Package
Rolls, Pallets,
Product Description
New arrival pressed cardboard for transformer
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Technical parameter
Accurate specifications ensure that we provide professional products
Item | Test standard | Measured value | Standard value |
Thickness tolerance | IEC 641-2 | ≤ 1.6 mm 6.00 % | ±7.5 % |
> 1.6 - 8.0 mm 4.00 % | ± 5.0 % |
Apparent density | IEC 641-2 | ≤ 1.6 mm 1.09 g/cm³ | 1.00 - 1.20 g/cm³ |
> 1.6 - 4.0 mm 1.15 g/cm³ | 1.10 - 1.25 g/cm³ |
Min. tensile strength M.D. unfolded | IEC 641-2 | ≤ 1.6 mm 107 N/mm² | 100 N/mm² |
> 1.6 - 4.0 mm 128 N/mm² | 105 N/mm² |
Min. tensile strength C.M.D, unfolded | IEC 641-2 | ≤ 1.6 mm 77 N/mm² | 75 N/mm² |
> 1.6 - 4.0 mm 83 N/mm² | 80 N/mm² |
Min. elongation M.D, unfolded | IEC 641-2 | 3.90% | 3.00% |
Min. elongation C.M.D, unfolded | IEC 641-2 | 4.10% | 4.00% |
Max. moisture content | IEC 641-2 | 4.20% | 6.00% |
Max. ash content | IEC 641-2 | 0.30% | 1.00% |
pH of aqueous extract | IEC 641-2 | 6.3 | 6.0 - 9.0 |
Max. shrinkage M.D | IEC 641-2 | 0.40% | 0.50% |
Max. shrinkage C.M.D | IEC 641-2 | 0.60% | 0.70% |
Max. thickness shrinkage | IEC 641-2 | 3.90% | 5.00% |
Min. oil absorption | IEC 641-2 | ≤ 1.6 mm 13.7 % | 11.00% |
> 1.6 - 4.0 mm 10.6 % | 9.00% |
Compressibility C | IEC 641-2 | ≤ 1.6 mm 9.4 % | 10.00% |
> 1.6 - 4.0 mm 5.7 % | 7.50% |
Revers. part of compressibility Crev | IEC 641-2 | ≤ 1.6 mm 54 % | 45% |
> 1.6 - 4.0 mm 71 % | 50% |
Min. breakdown voltage in oil | IEC 641-2 | ≤ 1.6 mm 50 kV/mm | 40 kV/mm |
> 1.6 - 4.0 mm 45 kV/mm | 35 kV/mm |
Max. conductivity of aqueous extract | IEC 641-2 | ≤ 1.6 mm 3.3 mS/m | 5.0 mS/m |
> 1.6 - 4.0 mm 3.5 mS/m | 6.0 mS/m |
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Details&features
Free sample and OEM service please check here!
Product description of pressed cardboard paper sheet
Pressboard PSP3052 (Transformer Board PSP3052) is a special product based on pure cellulose taken from long-fibred coniferous wood. This is structured into a fibrous tissue without additional adhesive and then pressed. Due to its high chemical purity, pressboard is excellently suited as an insulation material in electric machines, capacitors and oil-filled transformers.
Where can we use the product?
Product application will make us a direct impression.
Product Application of pressed cardboard paper sheet To use as insulation material in Power and Distribution Transformers
It is the base material for components like cyclinder, strips, spacers, rings. washers, plates, machine formed and moulded parts, punching and laminates.
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Our Services
1.Response to your inquiries and questions within 24hours.
2.Existing samples provided on free,only charge the freight.
3.High quality products and competitive offer
4.On-time delivery date
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Address:
158 Wu Yi Road, Changsha, Hunan, China
Business Type:
Manufacturer/Factory
Business Range:
Agriculture & Food
Company Introduction:
T′s easy for you to find out all range of quality products you need here
As a leading supplier of insulation products for use in electric motors, transformers and drivers in China, our company has supplied electrical insulation materials for over 25 years.
Numerous well-known customers rely on the high quality of our products, taking advantage of our company′s broad experience, professional knowledge and honest service
Our success is based on proximity to our customers, premium quality of our products and the consistent advancement of our company management
Mission Statement