Specifications Transformer Insulation electro-cardboard:

1. Thickness: 0.8mm-4mm

2. sheet size: 1000*2000

3.Good mechanical

  Transformer Insulation electro-cardboard is manufactured from 100% high quality sulfated insulating wood pulp.   1.Specification of Transformer Insulation electro-cardboard: 1). nominal thicknesses:0.8-4.0mm   2). standard size:1000mmX2000mm. 3). Density:1.0-1.3g/cm3   2.color:  Natural brown ,red   3. Features and applications of Transformer Insulation electro-cardboard:       -high chemical purity, excellent elongation, good mechanical and dielectric strength.     -for oil-immersed transformers,capacitors,reactors and switches.        

No.	Properties		Unit	Values
				Transformer insulation Pressboard
1	Thickness		mm	≤1.6		1.6-3.0			>3.0-6.0
2	Thickness Tolerance ≤		%	±7.5		±5.0
3	Density		g /cm3	1.0-1.2		1.1-1.25		1.15-1.3
4	Tensile Strength ≥	MD	Mpa	100		105		110
		CD		75		80		85
5	Dielectric Strength ≥	In Air No Bending	Kv /mm	—
		In Air After Bending		—
		In Oil		40	35		30
6	Shrinkage ≤	MD	%	0.5
		CD		0.7
7	Elongation ≥	MD	%	3.0
		CD		4.0
8	Conductivity of aqueous extract ≤		Ms /m	8.0
9	PH Value of Aqueous Extract		—	6.0-9.0
10	Ash Content ≤		%	1
11	Moisture Content ≤		%	6

            For more information, please feel free to contact Chrystal Zhai: