Professional Factory Electrical Insulation Cardboard Wood Pulp Insulation Presspape for High Voltage

• Customization: Available
• Thickness: 0.10mm-0.60mm
• Coating Side: Single Side
• Model NO.: 3055
• Paper Type: Specialty Paper
• Keywords: Cardboard Paper Sheets,Insulation Cardboard Sheet
• Pulp Material: Wood Pulp
• Use: Insulation
• Pulp Style: Recycled
• Feature: Anti-Curl
• Pulping Type: Mechanical Pulp
• Industrial Use: High Voltage
• Compatible Printing: Digital Printing
• Coating: Uncoated
• Width: 500mm-1250mm
• Transport Package: Wooden Cases or Wooden Pallet10 Ply Plywood
• Trademark: Powerwell
• Origin: Hunan, China
• Production Capacity: 50 Ton/Tons Per Month

Product Description

Item	Test standard	Measured	Standard value
		value
Thickness tolerance	IEC 641-2	±10 %	±10 %
Apparent density	IEC 641-2	1.1 g/cm³	1.0 - 1.2 g/ccm³
Min. tensile strength M.D, unfolded	IEC 641-2	90 N/mm²	80 N/mm²
Min. tensile strength C.M.D, unfolded	IEC 641-2	50 N/mm²	40 N/mm²
Min. elongation M.D, unfolded	IEC 641-2	6.50%	6%
Min. elongation C.M.D, unfolded	IEC 641-2	13%	12%
Max. moisture content	IEC 641-2	8%	8%
Max. ash content	IEC 641-2	0.50%	1%
pH of aqueous extract	IEC 641-2	7~9	6~9
Max. shrinkage M.D	IEC 641-2	0.70%	1%
Max. shrinkage C.M.D	IEC 641-2	1.20%	1.50%
Max. thickness shrinkage	IEC 641-2	5%	7%
Min. oil absorption	IEC 641-2	25%	12%
Min. breakdown voltage in air, unfolded, normalized	IEC 641-2	10 kV/mm	9 kV/mm
Min. breakdown voltage in oil	IEC 641-2	60 kV/mm	40 kV/mm
Measured values determined at 0.2 mm thickness.