Aging resistant environment-friendly type power cable
An environment-friendly technology for power cables, which is applied in the field of aging-resistant and environment-friendly power cables, can solve problems such as insulation performance degradation, cable qualitative change, and insulation aging, and achieve the effects of improving reliability, increasing service life, and avoiding corrosion
Inactive Publication Date: 2013-12-25
YUANCHENG CABLE CO LTD
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Problems solved by technology
[0005] The purpose of the present invention is to solve the problems of current power cables such as damage to the sheath, water ingress or qualitative change in the inner layer of the cable, aging of the insulation, decline in insulation performance, and potential safety hazards after long-term use of the current power cable, and to provide an anti-aging, environmental protection, Power cables with long service life
Method used
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Embodiment Construction
[0017] Such as figure 1 As shown, an aging-resistant environment-friendly power cable according to the present invention is characterized in that it includes a cable core, and the cable core is formed by twisting a plurality of insulated wire cores; the gap between the cable cores is filled with glass fiber rope 3, and the cable core The outer wrapping of the core adopts the wrapping layer 4 formed by overlapping and wrapping the glass fiber tape tightly. The wrapping layer 4 is extruded and wrapped with an environmentally friendly PVC inner lining layer 5. The inner lining layer 5 is outer braided steel wire armor layer 6. The outermost layer extruded environment-friendly PVC outer sheath 7; the insulated wire core is composed of an oxygen-free copper conductor 1 and an outer insulating layer 2 extruded on the oxygen-free copper conductor 1, and the insulating layer 2 is made of irradiated cross-linked polyethylene insulating material, And irradiated by a high-speed electron ...
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The invention discloses an aging resistant environment-friendly type power cable. The aging resistant environment-friendly type power cable comprises a cable core. The cable core is formed by a plurality of insulating wire cores in a twisting mode; gaps of the cable core are filled with glass fiber ropes; the cable core is wrapped with a wrapping layer, the wrapping layer is wrapped with a liner layer in an extruded mode, the liner layer is wrapped with a steel wire armoring layer in a woven mode, and the outmost layer of the cable core is wrapped with an outer protective sleeve in an extruded mode; the insulating wire core is composed of an oxygen-free copper conductor and an outer insulating layer wrapping the outer side of the oxygen-free copper conductor in an extruded mode. According to the aging resistant environment-friendly type power cable, irradiation cross linked polyethylene is adopted for insulation and the aging resistant performance of the cable is improved; the environment-friendly type PVC protective sleeve is adopted, so that the inflaming retarding and environment-friendly performance is improved, the problems that after an existing power cable is used for a long time, a protective layer is broken, water enters the cable or the inner layer is deteriorated, aging of an insulation layer occurs, the insulation performance declines, and potential safety hazards are caused are solved, and the service life of the cable at the normal operation temperature is no less than 70 years.
Description
[0001] technical field [0002] The invention relates to the field of wires and cables, in particular to an aging-resistant and environment-friendly power cable. Background technique [0003] According to national regulations, the design life of the building is 70 years. At present, most ordinary power cables use silane cross-linked polyethylene as the main insulating material. The insulating layer will gradually age during normal operation. The general service life is about 20 years. If it is used for more than 20 years, it may cause leakage due to the decline in insulation performance. , fire and other safety incidents. The service life of buildings and wires is seriously out of sync, thus burying many destructive safety hazards. [0004] In recent years, domestic building fires have occurred frequently, many of which are caused by the aging and short circuit of building wires and cables. When a fire occurs, ordinary power cables will produce thick black smoke and toxic ...
Claims
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Login to View More IPC IPC(8): H01B3/44H01B7/295H01B7/22
Inventor 俞国平李志强薛元洪章迁平储贤民刘文陈霞
Owner YUANCHENG CABLE CO LTD