物理性能HDMI 规格书上都有的，
HDMI绕线弯曲最小半径标准：
Cable Flex 100 cycles in each of 2 planes Dimension .
X = 3.7 x Cable Diameter.
(ANSI/EIA-364-41C, Condition I)
Discontinuity ：Dielectric Withstanding Voltage and Insulation Resistance
1 μsec maximum ：Conform to item of dielectric withstanding voltage and insulation resistance