Electrical transformer paper board
USD $1 - $5 /Kilogram
Min.Order:1000 Kilograms
New Light (Xuchang) Electrical Insulation Materials Limited
Uses and character of the product:
Electrical transformer paper board
Made with 100% unbleached sulphate wood pulp,with characteristics of high tensile strength,high elongation,low compressibility.
Transformer Press Paperboard
Product accord IEC60641-3-1:1992 quality standard
Technical Data
Properties | Unit | Min/max or range | Index | |||||
≤1.6mm | >1.6mm-3.0mm | >3.0mm-6.0mm | ||||||
Thickness Deviation | % | Max | ±7.5 | ±5.0 | ||||
Apparent density | g/cm3 | Range | 1.00-1.20 | 1.10-1.25 | 1.15-1.30 | |||
Tensile Strength | MD | Mpa | Min | 100 | 105 | 110 | ||
CMD | 75 | 80 | 85 | |||||
Shrinkage | MD | % | Max | 0.5 | ||||
CMD | 0.7 | |||||||
Thickness | 5.0 | |||||||
Moisture content | % | Max | 6.0 | |||||
Ash content | % | Max | 1.0 | |||||
Conductivity of Aqueous extract | mS/m | Max | 5.0 | 6.0 | 8.0 | |||
Electrical strength in oil | kV/mm | Min | 40 | 35 | 3.0 | |||
StandardSize | 1100x2200 1000×2000mm 1000×1000mm |
High Density Transformer Press Paperboard
Type | B3.1 | |||||||
Apparent Density | 1.0-1.30g/cm3 | |||||||
Thickness | 0.8-8.0mm | |||||||
Moisture content | 6% | |||||||
Special | Free of strains,very flat,hightest mechanical and electrical strength,little shrinkage | |||||||
standard size | 2200x4400mm |