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COPYRIGHT © 2019 Nantong Shirui Power Technology Co., Ltd.
Compound pad
Visual Check |
Dark red, No impurities.
Single defective area on skirt surface should be less than 5mm2 and depth should be less than 1 mm.
Bulging height should be less than 0.8m. Seaming bulging height should be less than 1.2mm. Total defective area should be less than 0.2% of total skirt area.
|
Hardness(ShA) |
≥50 |
Tensile Strength(MPa) |
≥40 |
Elongation at break(%) |
≥300 |
Tearing Strength(kN/m) |
≥15 |
Volume Resistivity(Ω·cm) |
≥1×1012 |
Surface Resistivity(Ω) |
≥1×1013 |
Dielectric Loss Factor (tan) |
≤0.03 |
Dielectric Strength(kV/mm) |
≥20 |
UV Resistance |
Samples after 300h UV test should be compared with original condition. There should be no chalking,cracking and obvious changes of color. |
Hydrophobicity |
According to DL/810-2002 standard, static contact angle should be over 100°, Hydrophobicity Level: HC1 |
Corrosion Resistance |
Should be over 4.5KV according to GB/T 6553-2003 standard. |