A cross-linked polyethylene insulated flame-retardant PVC sheathed fire-resistant power cable
A flame-retardant polyvinyl chloride and cross-linked polyethylene technology, which is used in insulated cables, power cables with shielding/conductive layers, insulators, etc. problems such as the accuracy of the root transmission line, to achieve the effect of ensuring balance and accurate relative position
Active Publication Date: 2021-08-31
ANHUI HANGTIAN CABLE GROUP
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Problems solved by technology
[0004] Aiming at the deficiencies of the prior art, the present invention provides a cross-linked polyethylene insulated flame-retardant PVC sheathed fire-resistant power cable, which solves the problem of positioning multiple transmission lines of the cable by wrapping the sheath, which is not effective and difficult to use. Guarantee the accuracy of the winding of multiple transmission lines, prone to local bulges, inconvenient for post-processing, and common external protective materials used in common cables are not effective in terms of insulation and flame retardancy
Method used
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[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0028] see Figure 1-5 , the present invention provides a technical solution: a cross-linked polyethylene insulated flame-retardant polyvinyl chloride sheathed fire-resistant power cable, including a cable body 1, the cable body 1 includes an inner core 101, a wrapping layer 102 and an outer skin 103, and the wrapping layer 102 Wrapped outside the inner core 101, the inner core 101 includes a cable 1011, a heat pipe 1012 and a reinforcing wire 1013, and the he...
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The invention discloses a cross-linked polyethylene insulated flame-retardant polyvinyl chloride sheathed fire-resistant power cable, which includes a cable body, the cable body includes an inner core, a wrapping layer and an outer skin, and the wrapping layer wraps the outside of the inner core. The invention relates to the technical field of power cables. In the cross-linked polyethylene insulated flame-retardant PVC sheathed fire-resistant power cable, the central hole positions the heat pipe, multiple cables are positioned through the corresponding multiple first positioning holes, and multiple reinforcing wires are positioned through the corresponding multiple first positioning holes. The second positioning hole is positioned to ensure the positioning of the heat pipe, multiple cables and multiple reinforcing wires, and to ensure the accuracy of the relative position when they are intertwined. Balance of parts.
Description
technical field [0001] The invention relates to the technical field of power cables, in particular to a cross-linked polyethylene insulated flame-retardant polyvinyl chloride sheathed fire-resistant power cable. Background technique [0002] Power cables are cables used to transmit and distribute electric energy. Power cables are often used in urban underground power grids, power station lead lines, internal power supply in industrial and mining enterprises, and underwater transmission lines across rivers and seas. In power lines, the proportion of cables is gradually increasing. Power cables are cable products used to transmit and distribute high-power electric energy in the main line of the power system, including 1-500KV and above various voltage levels and various insulated power cables. [0003] There are multiple transmission lines inside the cable. When preparing the cable, in order to facilitate the operation and prevent the leakage of the transmission lines, it is n...
Claims
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IPC IPC(8): H01B7/02H01B7/295H01B3/44H01B7/18H01B7/17H01B7/28H01B7/282H01B9/02H01B13/012H01B13/16H01B13/22
CPCH01B3/441H01B7/02H01B7/17H01B7/18H01B7/28H01B7/2825H01B7/295H01B9/02H01B13/01281H01B13/16H01B13/22Y02A30/14
Inventor 张本寿昌加兵钱家贵张敏后学铸汪国明
Owner ANHUI HANGTIAN CABLE GROUP