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6641 DMD class F insulation paper consists of two layers of polyester fiber non-woven fabric and one layer of polyester film in the center, the used adhensive is F CLASS ,acid-free and temperature resistant.
Property:With high dielectric, heat resistance, mechanical strength and impregnated property, as slot ,
interurn and liner insualtion in transformers.
Availability:
-Thickness of DMD insulation paper: 0.15mm-0.45mm
- Form: rolls(width 1000mm), sheets, strips(width >5mm)
- Colour: white, pink and blue. Other colours can be provided on request
Heat-resistance: F class 155°C
The specification available:
Thickness: 0.15, 0.18, 0.20, 0.25, 0.30, 0.35, 0.40, 0.45mm
Width: 1000m Color: Pink, watermelon, Blue and White
Form: in rolls.
Pacage: Plastic Bags or Carton Storage life---1 year
Test report as follow:
No | Technical Speclification | Unit | Values | ||||||||||||||||||||
1 | Thickness | mm | 0.15 | 0.18 | 0.20 | 0.23 | 0.25 | 0.30 | 0.35 | 0.40 | 0.45 | ||||||||||||
2 | Thickness tolerance | mm | ±0.02 | ±0.025 | ±0.03 | ±0.03 | ±0.03 | ±0.03 | ±0.035 | ±0.040 | ±0.045 | ||||||||||||
3 | Nominal Grammage and Tolerance | g/ | 140±20 | 190±28 | 220±33 | 260±39 | 300±45 | 350±52 | 425±63 | 500±75 | 560±84 | ||||||||||||
4 | Thickness of polyester film | mm | 0.05 | 0.075 | 0.10 | 0.125 | 0.15 | 0.19 | 0.25 | 0.30 | 0.35 | ||||||||||||
5 | Tensile Strength | MD | No Bending | N/10 | ≥80 | ≥120 | ≥140 | ≥180 | ≥190 | ≥140 | ≥270 | ≥140 | ≥140 | ||||||||||
After Bending | ≥80 | ≥105 | ≥120 | ≥150 | ≥170 | ≥140 | ≥200 | ≥140 | ≥140 | ||||||||||||||
TD | No Bending | ≥80 | ≥105 | ≥120 | ≥150 | ≥170 | ≥140 | ≥200 | ≥140 | ≥140 | |||||||||||||
After Bending | ≥70 | ≥90 | ≥100 | ≥120 | ≥130 | ≥140 | ≥150 | ≥140 | ≥140 | ||||||||||||||
6 | Elongation | MD | No Bending | Mm/width | ≥15 |
|
|
| |||||||||||||||
After Bending | ≥10 | ≥5 | ≥3 |
| |||||||||||||||||||
TD | No Bending | ≥20 |
|
|
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After Bending | ≥10 | ≥5 | ≥2 |
| |||||||||||||||||||
7 | Breakdown voltage | KV | ≥6 | ≥7 | ≥9 | ≥10 | ≥12 | ≥15 | ≥18 | ≥20 | ≥22 | ||||||||||||
8 | Bond strength at 25 degree C |
| No delamination | ||||||||||||||||||||
9 | Bond strength at 180 degree C |
| No delamination ,no blister,no adhesive flow | ||||||||||||||||||||
10 | Temperature |
| 155 | ||||||||||||||||||||
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