- Nantong Rizhi Electric Power Material Co.,Ltd
- China Manufacturer with main products:Diamond dotted insulation paper(DDP) ,Epoxy resin coated insulation paper ,Electrical insulation crepe paper ,Electrical insulation crepe paper tube ,Oil duct strip ,DMD(Dacron-Mylar-Dacron) ,NMN ,SHS ,Epoxy resin pre-preg DMD ,Electrical composite polyester film ,Electrical composite coaming board ,PMP
Home > Products > Thermal DDP > thermal insulation paper class B for high overload oil immersed transformer
thermal insulation paper class B for high overload oil immersed transformer
- 10000000 Kilogram / Kilograms per Month
- Shanghai
- T/T
- 7 days
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Product Details
Brand Name: | Rizhi | Place of Origin: | China | Model Number: | DPE |
Material: | Other, thermal insulation paper | Type: | Insulation Paper | Application: | High Temperature |
Rated Voltage: | ≥22KV (In oil) | Tensile Strength: | ≥400N/10mm width |
Product Description
Electrical heat-resistant diamond dotted insulating paper(Thermal DDP)
The base paper of thermal DDP is produced from the nitrogenous insulating wood pulp,and diamond coated with special modified epoxy resin on the surface,then cured by phase B.So the thermal DDP has good heat stability,mechanical and electrical properties.It’s ideal material for layer and turn insulation and CTC binding in high overload oil-immersed transformers.
Product Solidification Conditions
Firstly keep 90℃±5℃ for three hours, and then rise temperature to temperature rises to 125℃±5℃,the product will completely solidifies after maintaining for six hours.
Storage
Store in a dry,clean and well-ventilated warehouse, and keep away from fire and heat point, also keep away from the sun. The storage period is one year, qualified products exceeding the storage period can still be used.
Specification
No. | Property | Unit | Requirements | ||||||
1 | Base material thickness and tolerance | mm | 0.08±0.005 | 0.13±0.007 | 0.18±0.015 | 0.25±0.020 | 0.38±0.020 | 0.50±0.030 | |
2 | Base material tightness | g/cm³ | 0.85~1.10 | ||||||
3 | Single-sided adhesive thickness | um | 6~12 | ||||||
4 | Moisture | % | 4.0~8.0 | ||||||
5 | Ash | % | ≤0.60 | ||||||
6 | Conductivity of water extract | mS/m | ≤10 | ||||||
7 | PH value of water extract | - | 6.5~8.5 | ||||||
8 | Oil absorption | % | ≥20 | ||||||
9 | Nitrogen content | % | ≥1.5 | ||||||
10 | Bonding strength | Normal state | kPa | ≥650 | |||||
100℃±2℃ | |||||||||
11 | Pollution of transformer oil | - | No pollution(tanδ<0.001) | ||||||
12 | Tensile strength | MD | N/10mmWidth | ≥60 | ≥120 | ≥160 | ≥230 | ≥250 | ≥300 |
CD | ≥30 | ≥60 | ≥80 | ≥100 | ≥120 | ≥150 | |||
13 | Elongation | MD | % | ≥4.0 | |||||
CD | ≥2.0 | ||||||||
14 | Breakdown Voltage | In air | kV | ≥0.90 | ≥1.40 | ≥2.20 | ≥2.30 | ≥3.00 | ≥4.00 |
In oil | ≥5.50 | ≥8.00 | ≥10.00 | ≥12.00 | ≥15.00 | ≥20.00 |
Contact Us
- Nantong Rizhi Electric Power Material Co.,Ltd
- Contact nameShirly
- AddressHai'an Nantong,Jiangsu
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