High Quality Electrical Transformer Insulation Pressboard

• Application: Insulators, Electrical Winding Insulation, Electrical Base, Shell, Switch Baseplate
• Type: Insulation Sheet
• Chemistry: Inorganic Insulation
• Material: Paper
• Thermal Rating: E 120
• Maximum Voltage: 20KV~100KV
• Model NO.: 0.8-8mm
• Classification: Inorganic Insulation Material
• Certification: ISO9001
• Color: Brown and Red
• Brand: Chr
• Transport Package: Pallet
• Specification: Iec 60641-3-1: 1992
• Trademark: CHR
• Origin: China
• HS Code: 4811601000
• Production Capacity: 20mt/Week

Product Description

insulation pressboard is frequently used for electrical insulation and is commonly die cut to create unique parts for specific applications.

                    0.8-8mm
COLOR:  natural brown color,
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/cm^3	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
Electrical strength in oil		kV/mm	Min	40	35	3.0
Conductivity of Aqueous extract		mS/m	Max	5.0	6.0	8.0
StandardSize		1100x2200 1000×2000mm 1000×1000mm

 

 
High Density Transformer Press Paperboard

Type	B3.1
Apparent Density	1.0-1.30g/cm^3
Thickness	0.8-8.0mm
Moisture content	6%
Special	Free of strains,very flat,hightest mechanical and electrical strength,little shrinkage
standard size	2200x4400mm;  4200x2100mm;  3100x2100mm