CN217690574U

CN217690574U - Plateau climate type high weather-resistant irradiation photovoltaic power station cable

Info

Publication number: CN217690574U
Application number: CN202220376457.2U
Authority: CN
Inventors: 郑文彬; 许翔; 郑晓城; 郑晓彬; 赵明祥; 孟琨; 蒋陆肄; 许磊; 冯年瑞
Original assignee: Yunnan Duobao Cable Group Co ltd
Current assignee: Yunnan Duobao Cable Group Co ltd
Priority date: 2022-02-23
Filing date: 2022-02-23
Publication date: 2022-10-28
Anticipated expiration: 2032-02-23

Abstract

The utility model provides a plateau climate type high weather-resistant irradiation photovoltaic power station cable, which comprises a cable core and a shielding layer, an inner sheath, an outer insulating layer, a glass fiber layer, an armor layer and an outer sheath which are sequentially arranged outside the cable core; the cable core comprises a conductor, reinforcing ribs and an inner insulating layer, wherein the conductor and the reinforcing ribs are stranded into a bundle, and the inner insulating layer is an irradiation cross-linked flame-retardant polyolefin insulating material extruded outside the conductor and the reinforcing ribs. The utility model discloses an increase the strengthening rib, can promote solar photovoltaic cable's tensile ability by a wide margin. The cable has higher mechanical strength and tensile strength besides the performances of water resistance, radiation protection, aging resistance, weather resistance, high and low temperature resistance, interference resistance, moisture resistance, flame retardance, no toxicity, corrosion resistance and the like, so that the photovoltaic cable cannot be easily damaged and broken when being capable of enduring severe environment.

Description

Plateau climate type high weather-resistant irradiation photovoltaic power station cable

Technical Field

The utility model relates to a photovoltaic cable field especially indicates a plateau climate type high resistant type irradiation photovoltaic power plant cable of waiting.

Background

Solar photovoltaic power generation is a clean, environment-friendly, green and safe renewable energy source. At present, the development and utilization of solar energy for power generation become an important strategic decision for sustainable development in many countries of the world. As a key transmission component of a solar photovoltaic power generation system, a photovoltaic cable plays a crucial role in the utilization of solar energy, the technical performance of the photovoltaic cable in the solar photovoltaic system is strict because the photovoltaic cable is located outdoors for a long time, and the photovoltaic cables in the current market are not good and good, and are difficult to adapt to outdoor severe environments such as sun and rain, severe cold, high temperature and the like. China is the country with the largest electricity consumption in the world, and in order to solve the contradiction of shortage of electric energy, the country increases the development of renewable green low-carbon new electric energy year by year, and particularly focuses on accelerating the development of clean renewable new electric energy of solar photovoltaic power generation. In order to prevent the control circuit of the electrical equipment of the solar power station from being influenced by various external adverse factors, improve the electrical automation control efficiency and protect the ecological environment,

in addition, outdoor solar photovoltaic cable generally has longer transmission distance, further improves the tensile strength and the bearing capacity requirement of cable, avoids leading to cable performance impaired because the bearing capacity is not enough.

SUMMERY OF THE UTILITY MODEL

The utility model provides a plateau climate type high resistant type irradiation photovoltaic power plant cable of waiting can promote solar photovoltaic cable's tensile strength by a wide margin.

The technical scheme of the utility model is realized like this: a plateau climate type high weather resistance type irradiation photovoltaic power station cable comprises a cable core and a shielding layer, an inner sheath, an outer insulating layer, a glass fiber layer, an armor layer and an outer sheath which are sequentially arranged outside the cable core; the cable core comprises a conductor, reinforcing ribs and an inner insulating layer, wherein the conductor and the reinforcing ribs are stranded into a bundle, and the inner insulating layer is an irradiation cross-linked flame-retardant polyolefin insulating material extruded outside the conductor and the reinforcing ribs.

Preferably, the conductors are tinned copper wire bundles, the reinforcing ribs are aramid fiber bundles, the conductors and the reinforcing ribs are uniformly mixed, arranged and twisted together, and an inner insulating layer made of radiation cross-linked flame-retardant polyolefin insulating material is extruded outside to form the cable core.

Preferably, the diameter of the conductors of the tinned copper wire bundle is equal to that of the reinforcing ribs of the aramid fiber bundle, the number of the conductors is thirteen, the conductors are concentrated in the middle, and the number of the reinforcing ribs is six, and the reinforcing ribs are uniformly distributed on the periphery.

Preferably, the inner sheath is formed by extruding a cross-linked polyolefin material, and the armor layer is formed by wrapping a thin stainless steel band outside the outer insulating layer.

Preferably, the glass fiber layer is arranged between the armor layer and the outer sheath, and the outer sheath is formed by extruding and wrapping irradiation cross-linked flame-retardant polyolefin outside the glass fiber layer.

Compared with the prior art, the utility model has the advantages of: and the reinforcing ribs are added, so that the tensile capacity of the cable can be greatly improved. The glass fiber has good insulativity, strong heat resistance, good corrosion resistance and high mechanical strength, can fully play the advantages of the glass fiber when being arranged between the outer protective layer and the armor layer, and plays a good role in protection. The cable has higher mechanical strength and tensile strength besides the performances of water resistance, radiation protection, aging resistance, weather resistance, high and low temperature resistance, interference resistance, moisture resistance, flame retardance, no toxicity, corrosion resistance and the like, so that the photovoltaic cable cannot be easily damaged and broken when being capable of enduring severe environment. The service life of the solar photovoltaic power generation system reaches 30 years, and the solar photovoltaic power generation system can meet the requirements of a solar power station and a photovoltaic power system.

Drawings

Fig. 1 is a schematic cross-sectional structure diagram of the present invention.

In the figure: 1. a conductor; 2. reinforcing ribs; 3. an inner insulating layer; 4. a shielding layer; 5. an inner sheath; 6. an outer insulating layer; 7. an armor layer; 8. a glass fiber layer; 9. an outer sheath.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example (b): referring to fig. 1, the plateau climate type high weather resistance type irradiation photovoltaic power station cable comprises a cable core and a shielding layer 4, an inner sheath 5, an outer insulating layer 6, a glass fiber layer 8, an armor layer 7 and an outer sheath 9 which are sequentially arranged on the outer side of the cable core; the cable core comprises a conductor 1, reinforcing ribs 2 and an inner insulating layer 3, wherein the conductor 1 and the reinforcing ribs 2 are multiple and are twisted into a bundle, and the inner insulating layer 3 is an irradiation cross-linked flame-retardant polyolefin insulating material extruded outside the conductor 1 and the reinforcing ribs 2.

Preferably, the conductor 1 is a tinned copper wire bundle, the reinforcing rib 2 is a aramid fiber bundle, the conductors 1 and the reinforcing rib 2 are uniformly mixed, arranged and twisted together, and an inner insulating layer 3 of irradiation cross-linked flame-retardant polyolefin insulating material is extruded outside to form the cable core.

Preferably, the diameter of the conductors 1 of the tinned copper wire bundle is equal to that of the reinforcing ribs 2 of the aramid fiber bundle, the number of the conductors 1 is thirteen, the conductors are concentrated in the middle, and the number of the reinforcing ribs 2 is six, and the conductors are uniformly distributed around.

The reinforcing ribs 2 are added in the cable core and are mixed with the conductor 1 for stranding, so that the tensile capacity of the cable core can be greatly improved, and the conductor 1 is prevented from being broken due to self weight and external force. And the external armor layer 7 also has certain tensile property and double tensile property.

Preferably, the inner sheath 5 is formed by extruding a cross-linked polyolefin material, and the armor layer 7 is formed by wrapping a thin stainless steel belt outside the outer insulating layer 6.

Preferably, the glass fiber layer 8 is arranged between the armor layer 7 and the outer sheath 9, and the outer sheath 9 is formed by extruding irradiation cross-linked flame-retardant polyolefin outside the glass fiber layer 8.

The glass fiber has good insulativity, strong heat resistance, good corrosion resistance and high mechanical strength, but has the defects of brittle property and poor wear resistance, and can fully play the advantages of the glass fiber by being arranged between the outer protective layer and the armor layer 7 to play a good protection role.

In order to enhance the radiation-resistant and weather-resistant performance of the cable in a complex environment, the outer insulating layer 6, the inner sheath 5 and the outer sheath 9 of the cable are sequentially subjected to irradiation cross-linking treatment by an electron accelerator, so that the molecular structures of the outer insulating layer 6, the inner sheath and the outer sheath are formed by changing a linear structure into a net structure, and the electrical performance, the mechanical and physical performance, the radiation-resistant performance, the weather-resistant performance and the corrosion-resistant performance of the core wire insulating layer, the inner sheath 5 and the outer sheath 9 of the cable are enhanced.

The utility model discloses increase strengthening rib 2, can promote solar photovoltaic cable's tensile ability by a wide margin. The glass fiber has good insulation property, strong heat resistance, good corrosion resistance and high mechanical strength, and the glass fiber layer 8 is arranged between the outer protective layer and the armor layer 7, so that the advantages of the glass fiber layer can be fully exerted, and a good protection effect is achieved. The cable has higher mechanical strength and tensile strength besides the performances of water resistance, radiation protection, aging resistance, weather resistance, high and low temperature resistance, interference resistance, moisture resistance, flame retardance, no toxicity, corrosion resistance and the like, so that the photovoltaic cable cannot be easily damaged and broken when being capable of enduring severe environment. The service life of the solar photovoltaic power generation system reaches 30 years, and the solar photovoltaic power generation system can meet the requirements of a solar power station and a photovoltaic power system.

Photovoltaic cable in this application still has higher mechanical strength and tensile strength outside possessing properties such as water-fast, radiation protection, anti-aging, resistant high low temperature of waiting, anti-interference, dampproofing, fire-retardant nontoxic, anticorrosion for photovoltaic cable still can not damage easily and fracture outside can tolerating adverse circumstances. The service life of the solar photovoltaic power station can reach 30 years, and the requirements of the solar power station and the photovoltaic power system can be met.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a plateau climate type high resistant type irradiation photovoltaic power plant cable that waits which characterized in that: the cable comprises a cable core and a shielding layer, an inner sheath, an outer insulating layer, a glass fiber layer, an armor layer and an outer sheath which are sequentially arranged outside the cable core; the cable core comprises a conductor, reinforcing ribs and an inner insulating layer, wherein the conductor and the reinforcing ribs are stranded into a bundle, and the inner insulating layer is an irradiation cross-linked flame-retardant polyolefin insulating material extruded outside the conductor and the reinforcing ribs.

2. The plateau climate type high weather resistance type irradiation photovoltaic power station cable according to claim 1, characterized in that: the conductors are tinned copper wire bundles, the reinforcing ribs are aramid fiber bundles, the conductors and the reinforcing ribs are uniformly mixed, arranged and twisted together, and an inner insulating layer of irradiation cross-linked flame-retardant polyolefin insulating material is extruded outside to form the cable core.

3. The plateau climate type high weather resistance type irradiation photovoltaic power station cable according to claim 2, characterized in that: the diameter of the conductors of the tinned copper wire bundle is equal to that of the reinforcing ribs of the aramid fiber bundles, the number of the conductors is thirteen, the conductors are concentrated in the middle, the number of the reinforcing ribs is six, and the reinforcing ribs are uniformly distributed on the periphery.

4. The plateau climate type high weather resistance type irradiation photovoltaic power station cable according to claim 3, characterized in that: the inner sheath is formed by extruding cross-linked polyolefin materials, and the armor layer is formed by wrapping a thin stainless steel band outside the outer insulating layer.

5. The plateau climate type high weather resistance type irradiation photovoltaic power station cable according to claim 4, characterized in that: the glass fiber layer is arranged between the armor layer and the outer sheath, and the outer sheath is formed by extruding irradiation cross-linked flame-retardant polyolefin outside the glass fiber layer.