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| add time： | 2016-01-29 13:06:36 |
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This product is suitable for rated voltage 500V and below a higher requirement for tamper resistant electronic computer and automation connectivity cable. Ground cable core insulation using K type B type low density polyethylene with antioxidant properties. Polyethylene insulation resistance of a high voltage resistance, good effect, small and medium dielectric constant temperature and variable frequency of loss is small, not only to meet the transmission performance requirements, but also to ensure that the service life of the cable.
In order to reduce the inter loop crosstalk and external interference, shielded cable structure. Cable shielding requirements are based on different occasions were used: combination of shielded twisted pair, twisted cables composed of the total shielding, shielded twisted pair combination after total shielding method.
Shielding materials are round copper wire, copper strip, aluminum strip / plastic composite tape three. The shielding and shielding has good insulation properties of the cable in use if shielding on shielding potential difference between the right, will not affect the signal transmission quality.
technical parameter
The ambient temperature is not lower than the laying: fixed installation -40 C -15 C non fixed installation
Minimum bending radius: no armoring layer should be not less than 6 times of cable diameter, with armoured cable should not less than 12 times of cable diameter
At 20 C with DC 500V voltage test stable charging 1min after the insulation resistance should be not less than 2500M / Km
Between each pair of twisted shields and between the twisted shield and the total shield shall not break open
Between the cable core and the wire core and the shield should withstand the 50HZ, AC 2000V voltage test 5min does not breakdown
