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 3.00 % | ± 5.0 % |
| Apparent density | ≤ 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 | ≤ 1.6 mm 75 N/mm² | 70 N/mm² |
| > 1.6 - 4.0 mm 90 N/mm² | 80 N/mm² |
| Min. tensile strength C.M.D, unfolded | ≤ 1.6 mm 60 N/mm² | 50 N/mm² |
| > 1.6 - 4.0 mm 70 N/mm² | 55 N/mm² |
| Min. elongation M.D, unfolded | 6.50% | 6.00% |
| Min. elongation C.M.D, unfolded | 8.10% | 8.00% |
| Max. moisture content | 7.60% | 8.00% |
| Max. ash content | 0.80% | 2.00% |
| pH of aqueous extract | 6.3 | 6.0 - 9.0 |
| Max. shrinkage M.D | 0.40% | 0.50% |
| Max. shrinkage C.M.D | 0.60% | 0.70% |
| Max. thickness shrinkage | 3.90% | 5.00% |
| Min. oil absorption | ≤ 1.6 mm 13.7 % | 11.00% |
| > 1.6 - 4.0 mm 10.6 % | 9.00% |
| Compressibility C | ≤ 1.6 mm 9.4 % | 10.00% |
| > 1.6 - 4.0 mm 5.7 % | 7.50% |
| Revers. part of compressibility Crev | ≤ 1.6 mm 54 % | 45% |
| > 1.6 - 4.0 mm 71 % | 50% |
| Min. breakdown voltage in oil | ≤ 1.6 mm 15 kV/mm | 12 kV/mm |
| > 1.6 - 4.0 mm 13 kV/mm | 10 kV/mm |
| Max. conductivity of aqueous extract | ≤ 1.6 mm 3.3 mS/m | 10 mS/m |
| > 1.6 - 4.0 mm 3.5 mS/m | 10 mS/m
|
Apparent Density:1.0-1.2g/cm3
Thickness:0.8-4.0mm
Raw material:Unbleached sulphate pulp
Dimension:1000mm*2000mm
Special:Material free of strains,very flat,highest machanical and electrical strength
Good mechanical strength, high electric strength resistance ,
excellent flatness are the main strong Strengths of this product.
Sincerely hope have chance to cooperate with you in the coming days
We will offer you the best quantity and price
Welcome to ask the details
Shaoyang Baofeng Electric Equipment Co., Ltd. is a joint stock enterprise specializing in electrical insulation pressboard and components for more than 20 years, whose annual production volume is 10000 tons. The main products are as follows: Transformer insulation pressboard, thin electric insulating paper, red pressboard, fiber paper, cable paper, telephone paper, copy paper, transformer insulation components (positive and negative angle rings, laminated pressboard, end rings, rectangular stay, T stays, pad block, etc).
All our products are produced by 100% high-purity sulphate pulp, strictly according to the International Electro Commission (IEC) standards and Professional standards of the People's Republic of China, which also passed the certification of international quality system ISO9001-2000. They are widely used in transformers, motors, power capacitors, electrical switches, mechanical manufacturing, military industry, household appliances, clothing and footwear, packaging, printing, fruit processing and other industries. Especially the transformer insulating pressboard and transformer insulating forming parts are long-term used in most of transformer factories, due to their great electrical performance, excellent mechanical property and outstanding durability.
Our products are sold in not only China but also many foreign countries and regions, such as Europe, Southeast Asia, and Hongkong, receiving high praises from customers. The company has always adhere to the "good faith, the customer first" for business principle. We will develop with you customers together by high-quality products, competitive price, warm-hearted service and mutually beneficial cooperation!
