H41 Insulation Pressboard-made from  Arauco Pulp

Production Description:

1) Pre-compressed Pressboard, with Quality Standard: IEC60641-3-1:1992/GB/T 19264.3-2003

2) Thickness: 1.0mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm, 4.0mm, 5.0mm, 6.0mm, 7.0mm, 8.0mm

3) Material: 100% unbleached sulfate pulp imported from Canada, Russia.

4) High density, high mechanical strength, high electric strength and low compression index.

5) 4400mm*2200, 6400mm*3200mm and customized size Transformer pressboard

Large Size:4400*1600mm,4200*2100mm,4000*2000mm; Medium Size: 2200*1600mm,2200*1470mm,2200*1400mm; Small Size: 2200*1100mm, 2200*1000mm,2000*1000mm.

Usage:

Mainly used in oil-immersed transformer as insulation material, also used in reactor mutual inductance ware, electric device and etc.

Package:

Wrapped with vinyl film for waterproof, weaved material, then core paper packed, and wooden pallets.

H41 Transformer Board Technical Specifications:

No	Item		Unit	Specification	Standard
1	Thickness		mm	≤1.6mm	±7.0%
				>1.6mm-8.0mm	±5.0%
2	Density		g/cm3	≤1.6mm	1.00-1.20
				>1.6mm-3.0mm	1.00-1.25
				>3.0mm-6.0mm	1.15-1.30
				>6.0mm-8.0mm	1.20-1.30
3	Tensile strength	MD	MPa	≥90
		CD	MPa	≥50
4	Elongation	MD	%	≥3.0
		CD		≥4.0
5	Shrinkage	MD	%	≤1.0
		CD		≤1.4
		TD		≤6.0
6	Moisture		%	4.0—9.0
7	Ash Content		%	≤1.0
8	Conductivity of Aqueous Extract		Ms/m	≤10
9	PH of Aqueous Extract		/	6.0-9.0
10	Oil Absorbency		%	≥9.0
11	Electrical Strength (In Oil)		Kv/mm	1.0mm	≥35
				1.5mm	≥30
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