Mineral halogen-free low-smoke flame-retardant cable
A low-smoke, flame-retardant, mineral technology, applied in the direction of insulating cables, cables, circuits, etc., can solve problems such as troublesome operation, and achieve the effect of convenient assembly, good flame retardant and compression resistance
Active Publication Date: 2019-11-22
武汉新天地电工科技有限公司
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Problems solved by technology
[0004] The cable core is composed of several insulated wire cores twisted and combined, and polypropylene mesh tear fibers are arranged between adjacent insulated wire cores, and between adjacent insulated wire cores and the PVC inner lining layer. Filling, this method needs to bundle several insulated wire cores first, and the operation is more troublesome
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[0024] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contribution as needed, but as long as the rights of the present invention All requirements are protected by patent law.
[0025] A mineral halogen-free low-smoke flame-retardant cable, such as figure 1 , Including multiple cores 1, a flame-retardant layer 3 located outside the core 1, a filling layer between the core 1 and the flame-retardant layer 3, a steel tape armor located outside the flame-retardant layer 3, 4, a steel Outer sheath 5 with armor 4 outside.
[0026] Such as figure 2 , The core 1 includes a cylindrical base column 11, a plurality of spacers 12 uniformly distributed along the circumferential direction of the cylindrical base column 11, a copper wire 13 located between two adjacent spacers 12, and a copper wire 13...
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The invention discloses a mineral halogen-free low-smoke flame-retardant cable. The cable comprises a plurality of wire cores, a flame-retardant layer located outside the wire cores, a filling layer located between the wire cores and the flame-retardant layer, and an outer sheath located outside the flame-retardant layer, and each wire core comprises a cylindrical base column, a plurality of separation sheets evenly distributed in the circumferential direction of the cylindrical base column, copper wires located between every two adjacent separation sheets, and insulating layer filling gaps formed by the separation sheets and the copper wires; the separation sheets extend along the axial direction of the cylindrical foundation pillar; elastic sheets are fixed to the close faces of every two adjacent separation sheets, the two elastic sheets form an opening allowing a copper wire to enter, and the opening is smaller than the diameter of the copper wire. One end, far away from each separation sheet, of each elastic sheet is bent towards the central axis direction of the cylindrical base column along the radial direction of the cylindrical base column to form a guide part; abutting blocks are fixed on the separation sheets and are arranged at intervals along the axial direction of the cylindrical base column; after a copper wire is placed between every two adjacent separation sheets, the end of the guide part abuts against the outer side of the copper wire, and the inner side of the copper wire makes contact with and abuts against the abutting blocks.
Description
Technical field [0001] The invention relates to the field of cables, in particular to mineral halogen-free low-smoke flame-retardant cables. Background technique [0002] Cable is a general term for optical cables and cables. There are many uses for cables, which are mainly used for multiple functions such as controlling installation, connecting equipment, and transmitting power. It is a common and indispensable thing in daily life. As the cables are live, the installation requires special care. [0003] Existing cables, such as the irrigation cable disclosed by the announcement number CN103606404A, include a central cable core and an outer sheath layer of the outer layer. The cable core is composed of several insulated cores twisted, and the outer sheath layer is made of polyurethane elastomer. The cable core and the outer polyurethane elastomer sheath are extruded with a polyvinyl chloride lining layer and an aluminum-plastic composite tape longitudinal shielding layer from the...
Claims
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IPC IPC(8): H01B7/18H01B7/22H01B7/295H01B7/02H01B7/17H01B7/28H01B7/29
CPCH01B7/0216H01B7/025H01B7/0283H01B7/17H01B7/1805H01B7/181H01B7/1815H01B7/187H01B7/226H01B7/28H01B7/2806H01B7/29H01B7/295Y02A30/14
Inventor 谭斌牛杰段国权韩海涛陈然然
Owner 武汉新天地电工科技有限公司