Video coaxial cable in following integrated cable for elevator

The invention relates to a vide coaxial cable in a travelling comprehensive cable and used for elevators, comprising an internal conductor (1), an insulated layer (2), an external conductor (3) and an external protection layer (4); the internal conductor (1) comprises a plurality of copper-clad stee...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	WANG CHAOFAN, KONG SHANXIANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CABLES CONDUCTORS ELECTRICITY INSULATORS RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES WAVEGUIDES
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Beschreibung
Zusammenfassung:	The invention relates to a vide coaxial cable in a travelling comprehensive cable and used for elevators, comprising an internal conductor (1), an insulated layer (2), an external conductor (3) and an external protection layer (4); the internal conductor (1) comprises a plurality of copper-clad steel conductors which are arranged in regularly-twisted shape (11) with small pitch; the video coaxial cable of the invention has the beneficial effects that according to the flexible testing method specified in the standard of GB5023.2, after 30 thousand times of bending tests, the transmission performance of the cable can still meet the requirement of the GB/T14864-93 and the mechanical flexible performance is better than the requirement on the product in the standard GB5023.6.