Haikou Haojinghui Industrial Co., Ltd.  

Product Name: Insulation Pressboard for Oil Transformer Model NO.: 3052 Brand: HJH Color: Brown Certification: ISO9001 Classification: Inorganic Insulation Material Maximum Voltage: 20KV~100KV Thermal Rating: A 105 Material: Paper Chemistry: Inorganic Insulation Type: Insulation Paper Application: Insulators, Electrical base, Shell, Motor Trademark: HJH Transport Package: Bag/Pallet Specification: MT Origin: China HS Code: 4811601000 Product Description 1. FEATURESHot-pressedPressboard,100%sulphatepulpHighhardnessandstiffnessLowshrinkageandcompatibilityHighpurityandmechanicalstrengthGoodcompatibilitywithliquiddielectricsFurtherprocessingisensuredsincethepressboardcanbepunched,folded,cutandformedwithoutdifficulty.2.APPLICATIonSUsed as insulating material in power and distributing transformer.It is suitable for strips, cylinders, spacer, plates and structural supports of oil-liquid of distribution transformers,reactor and bushing current transformer.3.TECHNICAL PARAMETERItemsStandard IEC60641-3-1Thickness Tolerance±7.0%Density1.05 -1.20g/cm3Tensile strength MDCMD≥ 90 N/mm2≥ 50N/mm2Shrinkage MDCMDPerpendicular≤ 1.0 %≤ 1.4 %≤ 6.0 %Elongation MDCMD≥ 3.5 %≥ 4.0 %Ash Content≤ 1.0%PH Value of Aqueous Extract6-9Oil Absorption≥ 9%Conductivity of Aqueous Extract≤ 10mS/mElectrical Strength in Oil0.8mm-1.0mm1.5mm -2.0mm2.5mm3.0mm -4.0mm≥ 35 KV/mm≥ 30KV/mm≥ 27 KV/mm≥ 24KV/mm