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  • Polyester Sheet


    H class. Features: high temperature resistant, good mechanical and electrical performance. Applicable to H class motors and electrical equipment as an insulation part.

     

     Form I: Nominal Thickness and Allowable Tolerance
    Nominal Thickness
    mm
    Allowable Tolerance
    mm
    Nominal Thickness
    mm
    Allowable Tolerance
    mm
    0.2
    ±0.07
    5.0
    ±0.48
    0.3
    ±0.07
    5.5
    ±0.48
    0.4
    6.0
    ±0.58
    0.5
    ±0.14
    6.5
    ±0.58
    0.6
    8.0
    ±0.68
    0.8
    ±0.14
    10.0
    ±0.80
    1.0
    ±0.22
    12.0
    ±1.00
    1.2
    ±0.22
    14.0
    ±1.00
    1.5
    ±0.22
    16.0
    ±1.30
    1.6
    20.0
    ±1.30
    1.8
    ±0.28
    25.0
    ±1.50
    2.0
    ±0.28
    30.0
    ±1.50
    2.5
    ±0.33
    35.0
    ±2.00
    3.0
    ±0.33
    40.0
    ±2.00
    3.5
    ±0.33
    45.0
    ±2.20
    4.0
    ±0.38
    50.0
    ±2.20
    4.5
    ±0.38

      Form II: Properties

    No.
    Property
    Unit
    Value
    1
    Bending strength across layers
    Normal Condition
    MPa
    ≥400
    150±2℃
    ≥200
    2
    Impulse strength along layers
    (Beam method)
    kJ/m2
    ≥50(vertical)
    3
    Withstand voltage vertical to layers,(in 90℃±2℃ oil)
    MV/m
    See Form III
    4
    Dielectric loss factor
     below 48Hz~62Hz
    ≤0.05
    below 1MHz
    Density
    g/cm3
    ≥1.70
    5
    Withstand voltage parallet to layers
    kV
    ≥30
    6
    Insulation resistance parallet to layers
    Normal condition
    MW
    ≥1.0×104
    Absorbed in water
    for 24h
    ≥1.0×102
    7
    Volume resistivity
    Normal condition
    MW.m
    ≥1.0×105
    Absorbed in water
    for 24h
    ≥1.0×103
    180±2℃
    ≥1.0×103
    8
    Surface resistivity
    Normal condition
    MW
    ≥1.0×106
    Absorbed in water
    for 24h
    ≥1.0×104
    180±2℃
    ≥1.0×104
    9
    Temperature Index (TI)
    ≥180

     Form III: Electrical strength Vertical to Layers

    Thickness
    mm
    Value
     MV/m
    Thickness
     mm
    Value
    MV/m
    0.5
    ≥22
    1.8
    ≥20
    0.6
    ≥22
    2.0
    ≥20
    0.7
    ≥22
    2.2
    ≥18
    0.8
    ≥22
    2.4
    ≥18
    0.9
    ≥22
    2.5
    ≥18
    1.0
    ≥22
    2.6
    ≥18
    1.2
    ≥20
    2.8
    ≥18
    1.4
    ≥20
    3.0以上
    ≥18
    1.6
    ≥20
    Category:
  • Laminated Sheet (2)