Insulating Paperboard

Model:	Paperboard
Brand:	Laminated Paperboard
Origin:	Made In China
Category:	Electronics & Electricity / Insulation Material
Label:	Insulated paperboard , insulating material , Laminated paperboard
Price:	-
Min. Order:	10000 pc

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Product Description

Laminated paperboard

1. COMPOSITION AND PRESENTATION
Laminated paperboard is made of High-quality transformer board with casein, polyester resin or phenolic resin impregnated sheet by hot pressing process.

2. PROPERTIES & APPLICATIONS
It has obviously good properties in machenical strength and insulation strength than laminated wood. Large square laminated board is now available. It widely applied in strips, cylinders, spacers, plates, supports etc. as the insulating parts for oil transformer.

3. MAIN TECHNICAL CHARACTERISTICS
Table-01

Properties		Unit	Value
Properties		Unit	A	B	C
Density		g/cm³	1.15-1.35	1.15-1.35	1.15-1.35
Water content		%	< 8.0	< 6.0	≤ 6.0
Shrinkage	MD	%	< 0.5	< 0.5	≤ 0.5
Shrinkage	CMD	%	< 0.7	< 0.7	≤ 0.7
Ash content		%	< 0.8	< 0.8	< 0.8
Ration of absorption oil		%	> 11	> 8.0	≥ 9.0
Tensile strength	Lengthwise	Mpa	≥ 100	≥ 100	≥ 100
Tensile strength	Widthwise	Mpa	≥ 85	≥ 85	≥ 85
Compression strength	Lengthwise	Mpa	≥ 125	≥ 145	≥ 120
Compression strength	Widthwise	Mpa	≥ 90	≥ 100	≥ 70
Moisture content		%	≤ 6	≤ 6	≤ 6
Conductivity of aqueous extract		ms/m	< 11	< 8.4	< 8.0

Table-02 Size and Tolerance

T/Thickness		Length		Width
Size	Tolerance	Size	Tolerance	Size	Tolerance
T≤10	±0.5	2000	±10	1000	±10
10<T≤20	±1.0	2500	±10	1350	±15
20<T≤30	±1.5	--	--	--	--
30<T≤50	+1.75 / -1.5	--	--	--	--
200≥T>50	±2	--	--	--	--