Insulating Cardboard Transformer Insulation Electrical Paper Resistant to High Temperature and Voltage

• Customization: Available
• Application: Insulation, High Voltage Resistance, High Temperat
• Color: Brown
• Model NO.: PRESS BOARD
• Material: Wood Pulp
• Maximum Voltage: 20KV~100KV
• Thermal Rating: A 105
• Size: 1000*2000mm
• Package: 500kg or 1000kg
• Type: Insulation Sheet
• Chemistry: Inorganic Insulation
• Classification: Inorganic Insulation Material
• Certification: ISO9001, SGS
• Brand: Newdesen
• Transport Package: Pallet
• Specification: 0.50~6.0MM
• Trademark: NEWDESEN
• Origin: Henan
• HS Code: 48089
• Production Capacity: 60tons/Month

Product Description

Transformer insulating Pressboard
The Insulation Transformer Pressboard is manufactured from 100% high quality sulfated insulating wood pulp. without sizing or used fillers. This paper is highly refinded and cleaned to ensure uniform thickness and formation. It is allowed to exist for little Pinholes, Undispersed fiber bundles and Tiny defects if it doesn't effect to meet the safety requirements in the manufacturing and applications of transformers and cables.
It is suited for making electromagnetic wire of transformers and other electrial insulating equipments
Specification:
nominal thicknesses:1.0-8.0mm  
size:1000mmX2000mm   2000mmX4000mm

Description of Products	Transformer PressboardThickness:l.0mm			Produces time	2025.9
Products Standard	GB/T19264.3-2013B.3.1A			Quality grade	A
Property		unit	NormalValue	Testresult	TestMethod
Tolerance ofThickness Max.		%	±7.5	1.4	IEC60641-2:2004
Apparent density		g/cm3	0.90-1.15	1.01
Tensile strength	MD	N/mm2	≥50	54.5
	CMD	N/mm2	≥30	33.4
Elongation	MD	%	≥3.0	7.0
	CMD	%	≥4.0	5.2
Shrinkage	MD	%	≤0.7	0.53
	CMD	%	≤1.0	0.80
	Thick.D	%	≤5.0	4.1
Ash content		%	≤1.0	0.72
Oil absorption		%	≥15.0	28.2
PH of aqueous extract			6-9	7.56
Conductivity of aqueous extract		mS/m	≤8.0	5.5
Electrical strength(in air)		kV/mm	≥10	10.3
Electrical strength(in oil)		kV/mm	≥35	41.4
Moisture content		%	≤8.0	7.6