塑料老化，我倒是知道点
HPN 检验规范
STYLE ： HPN300V90℃OR 105℃FLEXIBLE CORD
Standard：UL 62 UL 1581
Applications：Use in household colocks,fans,radios and similar appliances
Construction Details:
Test Item Style & Size18AWG/2C
Conductor：Construction AS41/0.16±0.003 max. lay. lengthS 25mm ↓ 絞合外徑 Cond. Dia.1.18mm
Separator: No
Core Insulation:Material: CPE 氯化聚乙烯/EP 乙丙橡胶 Avg. thickness : 1.14mmMin. thickness: 1.02mm
导体间距min acceptable distance 无地线 withoutgroundingconductor : 2.03mm有地线 with conductor : 1.02mm
外形尺寸 Over Diameter長mm:3.5±0.10 寬mm6.9±0.20
外觀 Surface:平滑 顏色Colors: OPTIONAL
烘箱老化 After ageing in heating cabinet: 抗張強度Tensile Strength 斷裂伸長率 Elongation 136±2℃ 7 DAYS 老化前50%↑
火花電壓試驗 Spark TestAC 5KV
冷挠試驗 cold bend -20±2℃Mandreldimameter 12.7mm,6 turns of specimen around mandrel
電弧試驗 ArcingResistance48~62Hz 120V 2~30A,20 Cycle/2min
燃燒試驗 FlameTest : VW-1FT1 FT2 -F-
