Supplier Homepage Electrical & Electronics Insulation China Transformer Pressbord Insulation Pressboard

China Transformer Pressbord Insulation Pressboard

Min. Order / Reference FOB Price
500 kg	US $3.00/ kg

Local Area:	Beijing, China
R&D Capacity:	OEM, ODM, Other
Payment Terms:	LC, T/T, PayPal

Application:	Electrical Winding Insulation, Winding Wire Coating Insulation, Insulating Varnish
Type:	Insulation Paper
Chemistry:	Organic Insulation

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Product Description

Insulation pressboard
Introduction:
It is made of 100% sulfate wood pulp and has high density (similar to T4). It has excellent properties of very flat, highest mechanical and electrical strength and little shrinkage. It is used in oil-immersed power transformer.
Pressboard standard: IEC 641-3-1
Thickness: 1.0-8.0mm
Size (mm): 6300*3200, 6300*1600, 4200*3200, 4200*1600, 3200*3150, 3200*2100, 2000x1000 1000x1000

Index.UnitValues≤1.6>1.6~3.0>3.01Nominal thickness tolerance%≤10(±)2Nominal Grammageg/cm31.00~1.201.00~1.251.15~1.303Shear strength ,M.D.Mpa≥100≥105≥1104Shear strength, C.M.D.Mpa≥75≥80≥855Elongation (M.D.)%≥3.06Elongation (C.M.D.)%≥4.07Shrinkage%≤10.0≤7.5≤5.08Shrinkage which would resume%≥45≥50≥5011Shrinkage:M.D.%≤0.5C.M.D.≤0.7Thickness direction≤4.012Moisture content%≤6.013Ash content%≤1.014Electrical conductivity of aqueous extractms/m≤1.6>1.6~3.0>3.015Aquesous extract (PH)-6~916Oil absorption%≥11.0≥9.0≥7.017Voltage resistant strength(In air)MV/m≥12≥11≥1018Voltage resistant strength(In oil)MV/m≥40≥35≥30