Specifications
Size: 2000mm x 1000mm, 4400mm x 2200mm, 3200m x 2200mm
Widely used for power transforer, distributor transformer
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PRESS PAPER
IEC60641-3-1 (P.4.1)standard,and the main index as following
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Index item
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unit
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demand
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1.thickness tolerance(max.)
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%
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±10
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2.density
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g/cm3
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1.0-1.2
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3.tensile strength(mix.)longitudinal
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Mpa
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80
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4. tensile strength(mix.)traverse
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Mpa
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40
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5. tensile strength(mix.) traverse after folding
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Mpa
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A B
35 40
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6. tensile strength(mix.) longitudinal after folding
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Mpa
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60
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7.moisture content(max.)
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%
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8
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8.ash content(max.)
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%
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1
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9.electric break town strength(mix.)
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A B
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In oil 0.1.mm
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9 9
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0.15-0.25mm
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KV/mm
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10 10
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0.30-0.35mm
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10 -
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0.40-0.50mm
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9 -
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10. electric break town strength(mix.)
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In are after folding
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A B
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0.10-0.15mm
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KV/mm
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7 7
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0.20-0.25mm
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8 8
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0.30mm
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8 -
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0.30-0.50mm
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7 -
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11. electricity conductivity(max.)
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8
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12.PH of water extractives
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Ms/m
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6-9
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PRE-COMPRESSED PAPER BOARD (TRANSFORMER PRESS BOARD)
Abide by IEC60641-3-1 (B.3.1)standard,and the main index as following
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Index item
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unit
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data
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1.thickness tolerance(max.)
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less than 1.6MM
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±7.5
±5.0
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more than 1.6MM
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2.density less than1.6MM
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g/cm3
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1.00-1.20
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more than1.6MM-3.1MM
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1.10-1.25
1.15-1.30
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more than 3.0MM-6.0MM
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3.tensile strength(mix.)
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Mpa
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Longitudinal less than1.6MM
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100
105
110
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1.6MM-3.0MM
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3.0MM-6.0MM
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4.tensile strength(mix.)traverse less than1.6MM
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Mpa
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75
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1.6MM-3.0MM
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80
85
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3.0MM-6.0MM
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5.elongation rate(mix.)longitudinal
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%
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3.0
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6.elongation rate(mix.)Traverse
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%
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4.0
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7.thrinkage(max.)longitudinal
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%
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0.5
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Traverse
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0.7
5.0
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Thickness
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8.moisture content(max.)
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%
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6.0
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9.ash content(max.)
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%
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1.0
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10.electricity conductivity(max.)
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Ms/m
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8.0
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11.PH of water extractives
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6.0-9.0
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12.electric breakdown strength(mix)
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Kv/m
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In oil :less than1.6MM
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40
35
30
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1.6MM-3.0MM
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3.0MM-6.0MM
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