Special-shaped conductor polypropylene insulated power cable and processing method thereof
A power cable and processing method technology, applied in the field of special-shaped conductor polypropylene insulated power cable and its processing, can solve the problems of people's health hazards, groundwater pollution, and toxic substances, and achieve copper resource saving, large carrying capacity, and low toxicity Effect
Pending Publication Date: 2021-03-12
四川新蓉电缆有限责任公司
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Problems solved by technology
More importantly, this type of product has a very fatal defect, that is, toxic substances will be produced during the cross-linking process. This defect has caused a certain amount of trouble and confusion in both the production process and the later recovery process. Cables laid underground are also likely to cause local groundwater pollution, causing hidden dangers to people's health
Method used
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Embodiment 1
[0022] Such as figure 1 As shown, a special-shaped conductor polypropylene insulated power cable includes several copper conductors 1, the copper conductors 1 are coated with a polypropylene insulating layer 2 and form a cable core, and the outer periphery of the several cable cores is covered with a tape layer 4 , and by filling the space around the cable core so that the inner space of the tape layer 4 is kept round and forms the filling layer 3, the tape layer 4 is covered with an inner liner 5, and the inner liner 5 is covered with a layer for protecting the cable The armor layer 6 with structural integrity and electrical performance, the inner lining layer 5 is used to prevent the internal structure from being damaged by the armor layer 6, and the armor layer 6 is covered with an outer sheath layer 7 for preventing the armor layer 6 from being corroded.
[0023] Such as figure 2 Shown, a kind of processing method of polypropylene insulated power cable comprises the foll...
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The invention relates to a special-shaped conductor polypropylene insulated power cable and a processing method thereof. The processing method comprises the following steps of twisting and compressinga copper conductor (1); preparing a polypropylene insulating layer (2) by adopting an environment-friendly polypropylene insulating material in an extrusion manner; filling a cable core to form a cable and wrapping the cable with a wrapping tape; wrapping and tightening the cable by using a polypropylene wrapping tape to obtain an inner lining layer (5) of the cable; adopting a double-layer galvanized steel belt to armor the cable in a spiral gap manner; and extruding an outer sheath layer (7) on the cable by adopting a low-smoke halogen-free polyolefin material. The beneficial effects of thepresent invention are that the environment-friendly polypropylene insulated power cable is high in temperature resistance grade (105-110 DEG C) and high in current-carrying capacity; the electrical and mechanical properties are excellent, crosslinking is not needed, and energy consumption is saved; harmful gas influencing the environment is not generated in the production process, the productionspeed is higher, the efficiency is higher, and the cable and the method are suitable for large-length production; the polypropylene material is a thermoplastic material, can be recycled for the secondtime, and meets the energy-saving and environment-friendly requirements of national cyclic utilization; and the cable is a development direction of future application of the cable industry.
Description
technical field [0001] The invention relates to the technical field of power cable processing, in particular to a special-shaped conductor polypropylene insulated power cable and a processing method thereof. Background technique [0002] Power cables are cables used to transmit and distribute electric energy. Power cables are often used in urban underground power grids, outgoing lines of power stations, internal power supply of 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] The traditional insulating material is wound and wrapped by multiple layers of the earliest insulating paper, soaked in cable insulating oil, and then adopts a lead pressin...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01B9/00H01B7/02H01B7/17H01B7/29H01B7/295H01B3/44H01B13/00
CPCH01B3/44H01B7/02H01B7/17H01B7/29H01B7/295H01B9/006H01B13/00
Inventor 李红燕吕刚乔恩戴燕琳蒋桂贤李建成霍帅营凌强
Owner 四川新蓉电缆有限责任公司