Quick Detail
Place of Origin
HS-CODE
S12-
Package & Delivery Lead Time
Detailed Description
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
2.0mm ≥30
2.5mm ≥27
≥3.0mm ≥24
12 Cutting Size Tolerance mm 1.0mm-8.0mm ±10
13 Inclination Tolerance mm 1.0mm-8.0mm ±10
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