• No.

    Item

    Unit

    Reference standard

    Value

    1

    Nominal thickness

    μm

    GB/T 13542.2-2009

    317

    2

    Thickness deviation

    /

    ±10%

    3

    Nominal Weight

    g/m2

    GB/T 13542.2-2009

    435

    4

    Weight deviation

    /

    -5%,+10%

    5

    Width deviation

    mm

    GB/T 13542.2-2009

    -0+5

    6

    Tensile strength

    MD

    MPa



    GB/T 13542.2-2009


    ≥100

    TD

    MPa

    ≥100

    7

    Elongation at break

    MD

    %

    ≥100

    TD

    %

    ≥80

    8

    Heat shrinkage

    MD

    %


    GB/T 13542.2-2009

    ≤0.8

    TD

    %

    ≤0.6

    9

    Coating adhesion

    EVA Side

    GB/T 9286-1998

    0

    10

    Boiling

    watertreatment (boil for 24h)

    Appearance

    /

    GB/T 17748-2008

    No delamination 

    no bubble ,no peeling

    Coating adhesion

    - GB/T 9286-1998

    0 Grade


    Grade

    GB/T 9286-1998

    0

    11

    Peeling strength with EVA(Initial)

    Transparent EVA

    N/cm

    GB/T 2790-1995

    ≥50

    12

    Peeling strength with silica gel

    N/cm


    GB/T 1040-2006

    ≥20

    13

     400-1000nm 

    transmittance

    %


    GB/T 2410-2008

    85

    14

    Breakdown voltage

    KV


    GB/T 13542.2-2009

    ≥17

    15

    Partial Discharge

    VDC


    IEC 60664-1-2007

    ≥1500

    16

    DTI

    μm


    IEC TS 62788-2:2017

    ≥300

    17

    Moisture vapor transmission rate

    38℃*90RH%

    g/m2•d

    GB/T 21529-2008

    ≤2.0

    18

    PCT aging treatment(121℃, 2 ato,

    48h)

    b


    GB/T 13542.2-2009

    b≤2.0

    ≥30%

    19


    Damp Heat (1000h)


    UV Aging (120kwh)


    Thermalcycle(200)


    Humidity-freeze (10)

    b

    IEC 61215-2005



    No brittle fracture, blistering, delamination

    b≤2.0



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