China Duct Spacing for Oil Transformer Insulation Material / Strips Factory Price, Find details about China Oil Duct Strips, Insulation Material from Duct Spacing for Oil Transformer Insulation Material / Strips Factory Price
ITEM | TYPICAL VALUES | MATTER OF FACT |
Thickness: mm | 4mm±7.5% | 4.1-4.3mm≤7.5% |
Width | 5±0.5mm | 4.95-5.38mm≤0.4mm |
Length of 1000mm: | ±5mm | 1000±3 mm |
Pitch of stick centre: | ±3mm | 23±2 mm |
Apparent density: g/cm3 | 1.1-1.2 | 1.18 |
Moisture content ,% | 4.0 to 9.0% | 5.7 |
PH water extract: | 6.0 to 9.0 | 6.8 |
Ash content,% maximum | 1% | 0.51 |
Tensile strength Mpa Machine direction: Cross machine direction: | ≥90 ≥50 | 107.4 101.3 |
Oil absorption | ≥7.0% | 12.29 |
Shrinkage rate% MD CMD Thickness D | ≤1.0 ≤1.4 ≤6.0 | 0.16 0.25 ≤5 |
Elongation rate MD CMD | ≥3 ≥4 | ≥4.4 ≥4.4 |
Conductivity of aqueous extract Ms/m | ≤10.0 | 5.03 |
Dielectric breakdown:(Kv/mm )In Air In Oil | 10 24 | 16.7 35.7 |