CN105047294A - Thermal insulation optical cable power transmission hybrid cable - Google Patents
Thermal insulation optical cable power transmission hybrid cable Download PDFInfo
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- CN105047294A CN105047294A CN201510285413.3A CN201510285413A CN105047294A CN 105047294 A CN105047294 A CN 105047294A CN 201510285413 A CN201510285413 A CN 201510285413A CN 105047294 A CN105047294 A CN 105047294A
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- isosceles trapezoid
- optical fiber
- heat insulation
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Abstract
The invention discloses a thermal insulation optical cable power transmission hybrid cable, which comprises a filling layer, wherein the internal part of the filling layer is provided with an optical fiber assembly and isosceles trapezoid modules. The thermal insulation optical cable power transmission hybrid cable is characterized in that the filling layer is externally coated with an isolation layer, the isolation layer is externally coated with a PE outer sheath, the optical fiber assembly comprises a loose tube, the loose tube is internally provided with a fiber paste layer, the fiber paste layer is internally provided with optical fibers, the number of the isosceles trapezoid modules is six, the six isosceles trapezoid modules comprise three electrical conductors with the cross section being in the shape of an isosceles trapezoid and three isolation blocks with the cross section being in the shape of an isosceles trapezoid, the adjacent electrical conductors are arranged in a mode of being isolated by the isolation block, all of the isosceles trapezoid modules form a polygonal ring with the outer diameter being a hexagon and the inner diameter being a hexagon in an enclosing mode, the loose tube is arranged in the polygonal ring, and an axis of the loose tube is overlapped with an axis of the polygonal ring.
Description
Technical field
The present invention relates to cable configuration, specifically heat insulation optical cable transmission of electricity mixing cable.
Background technology
Optical cable is a kind of light conduction instrument reaching the total reflection principle transmission caused in fiber that light makes at glass or plastics.Optical cable is that the optical fiber of some forms the cable heart according to certain way, is surrounded by sheath outward, the also coated outer jacket had, in order to realize a kind of communication line of optical signal transmission.In prior art, optical fiber is arranged in Loose tube, will add fine cream in Loose tube simultaneously, and fine cream is indispensable in producing as central tubular and layer-stranding cable, play sealing, resistance to stress cushioning effect, but it does not possess insulation effect, in the prior art, combine to make optical fiber and transmission line, market has taken up research and development optical fiber transmission of electricity optical cable, optical cable and power transmission cable are combined, but because the electric lead in power transmission cable can bear larger stress, and optical cable is due to the fragility of internal optical fiber, therefore the stress born is less, and traditional structure is only electric lead and optical fiber are simply integrated, therefore the adaptation stress due to optical fiber is little, therefore this can reach the scope limiting it and use, produce amount of heat because the electric lead in power transmission cable needs to overcome self-resistance in the process of transmission current simultaneously, therefore these heats can affect the transmission performance of optical fiber, therefore existing transmission of electricity optical cable needs to overcome above-mentioned major issue.
Summary of the invention
The object of the present invention is to provide heat insulation optical cable to transmit electricity and mix cable; utilize the special shape of electric lead; be built into a protective layer to optical fiber; utilizing the large stress characteristics of electric lead, form the protection to optical fiber, avoiding cable to cause damage to optical fiber when being subject to large stress simultaneously; improve the range of application of mixing cable; and optical fiber surface is coated with coating adhesive, thus play the heat of isolated transmission of electricity electric lead generation, thus overcome the impact of heat on optical fiber.
Object of the present invention is achieved through the following technical solutions: heat insulation optical cable transmission of electricity mixing cable, comprise the packed layer that inside is provided with optical fiber component and isosceles trapezoid module, packed layer is coated with isolation layer, isolation layer is coated with PE oversheath, optical fiber component comprises Loose tube, fine layer of paste is provided with in Loose tube, the optical fiber that outer surface has optical fiber surface coating adhesive is provided with in fine layer of paste, isosceles trapezoid module has 6, 6 isosceles trapezoid modules comprise electric lead that 3 cross sections are isosceles trapezoid and 3 cross sections are the spacing block of isosceles trapezoid, spacing block interval is adopted to arrange between adjacent electrical conductor lines, it is hexagon that all isosceles trapezoid modules enclose formation external diameter, internal diameter is hexagonal polygon ring, Loose tube is arranged in polygon ring, the axis of Loose tube and the dead in line of polygon ring, optical fiber surface coating adhesive is made up of the raw material of following parts by weight: organic silicon rubber: 25 ~ 30 parts, high molecular weight polyisobutylene: 5 ~ 10 parts, middle-molecular-weihydroxyethyl polyisobutene: 5 ~ 10 parts, low-molecular-weight polyisobutylene: 10 ~ 15 parts, inorganic filler: 10 ~ 15 parts, antioxidant: 0.5 ~ 1 part, glass fibre: 5 ~ 10 parts, silicate: 5 ~ 10 parts.
The average relative molecular mass of described organic silicon rubber is 150,000 ~ 500,000.
The viscosity average molecular weigh of described high molecular weight polyisobutylene is 200,000 ~ 2,600,000.
The viscosity average molecular weigh of described middle-molecular-weihydroxyethyl polyisobutene is 40,000 ~ 8.5 ten thousand.
The number-average molecular weight of described low-molecular-weight polyisobutylene is 1000 ~ 3000.
Described inorganic filler is a kind of or several arbitrarily mixture in kaolin, talcum powder, calcium carbonate.
Described antioxidant is a kind of of antioxidant 264, antioxidant 1010 or antioxidant 168 or mixtures several arbitrarily.
The design principle of said structure is: utilize spacing block that 3 cross sections are isosceles trapezoid and the electric lead that 3 cross sections are isosceles trapezoid to carry out interval connection, namely spacing block interval is adopted to arrange between adjacent electrical conductor lines, then will form an external diameter is hexagon, internal diameter is the column structure of hexagonal hexagonal ring, utilize the protective feature of said structure, optical fiber component can be arranged in the cavity of above-mentioned column structure, because this structure is that employing 6 isosceles trapezoid modular structure combinations are formed, therefore when being subject to ambient pressure, adjacent isosceles trapezoid module can extrude mutually, and the optical fiber component in unique cavity can not be subject to the larger impact of external stress, thus protect optical fiber component, said structure can be subject to the extruding force of very strong circumferencial direction, the range of application of mixing cable can be improved, compare the mixing cable of traditional simple combination, stress levels can be improve the intensity of common wiring cable by this structure.The coating adhesive of said components composition, it possesses excellent hot strength, and its hot strength can reach 330Ka, also possesses excellent dielectric strength, can reach 12KV/mm; Also possess good sealing characteristics, have more the insulating characteristics of standby superelevation.
Coating adhesive of the present invention take polyisobutene as raw material, not containing double bond in polyisobutene molecular structure, for saturated linear polymer, therefore excellent thermal stability, resistance to chemical attack, resistance to ozone and weatherable characteristic is possessed, wherein be added with glass fibre and silicate, this coating adhesive can be made to possess superpower insulating characteristics, organic silicon rubber is heated in the present invention simultaneously, the high temperature resistant of coating adhesive and lower temperature resistance can be significantly improved, be applicable to severe cold and extremely hot region, for China cold district provides the feasible scheme of optical fiber erection.
Preferably, described spacing block is electro-insulating rubber block.
Preferably, steel wire reinforcement is provided with in described PE oversheath.
Preferably, the quantity of steel wire reinforcement is the axis of line through Loose tube of the central point of 2,2 steel wire reinforcements.
The preparation method of optical fiber surface coating adhesive, it comprises the following steps:
S1. weigh: take each raw material according to the above ratio, for subsequent use;
S2. mediate: in rubber kneading machine, add high molecular weight polyisobutylene, organic silicon rubber, middle-molecular-weihydroxyethyl polyisobutene, low-molecular-weight polyisobutylene and antioxidant, glass fibre, silicate to mediate, kneading time is 30 ~ 50 minutes, and temperature is 120 ~ 160 DEG C;
S3. be in harmonious proportion: after kneading completes, add inorganic filler again, be in harmonious proportion, wherein time harmonic is 30 ~ 50 minutes, and temperature is 120 ~ 160 DEG C, and mediation rotating speed is 200 ~ 280rpm;
S4. extrude: be squeezed in Rubber Extruder by the sizing material after being in harmonious proportion through discharge screw, Rubber Extruder Extrusion Coating is at optical fiber surface, and wherein the barrel zone temperature of extruder is 100 ~ 150 DEG C, and head temperature is 120 ~ 140 DEG C.
The invention has the advantages that: reach protection optical fiber; utilize the special shape of electric lead; be built into a protective layer to optical fiber; utilizing the large stress characteristics of electric lead, form the protection to optical fiber, avoiding cable to cause damage to optical fiber when being subject to large stress simultaneously; improve the range of application of mixing cable; make the optical fiber surface of transmitting electricity in optical cable apply above-mentioned coating adhesive, thus play the heat of isolated transmission of electricity electric lead generation, thus overcome the impact of heat on optical fiber.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
Reference numeral in figure is expressed as: 1, PE oversheath; 2, isolation layer; 3, steel wire reinforcement; 4, electric lead; 5, Loose tube; 6, fine layer of paste; 7, optical fiber; 8, optical fiber surface coating adhesive; 9, packed layer; 10, spacing block.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment 1:
As shown in Figure 1.
Heat insulation optical cable transmission of electricity mixing cable, comprise the packed layer 9 that inside is provided with optical fiber component and isosceles trapezoid module, packed layer 9 is coated with isolation layer 2, isolation layer is coated with PE oversheath 1, optical fiber component comprises Loose tube 5, fine layer of paste 6 is provided with in Loose tube, the optical fiber 7 that outer surface has optical fiber surface coating adhesive 8 is provided with in fine layer of paste 6, isosceles trapezoid module has 6, 6 isosceles trapezoid modules comprise electric lead that 3 cross sections are isosceles trapezoid and 3 cross sections are the spacing block of isosceles trapezoid, spacing block interval is adopted to arrange between adjacent electrical conductor lines, it is hexagon that all isosceles trapezoid modules enclose formation external diameter, internal diameter is hexagonal polygon ring, Loose tube is arranged in polygon ring, the axis of Loose tube and the dead in line of polygon ring, optical fiber surface coating adhesive is made up of the raw material of following parts by weight: organic silicon rubber: 25 ~ 30 parts, high molecular weight polyisobutylene: 5 ~ 10 parts, middle-molecular-weihydroxyethyl polyisobutene: 5 ~ 10 parts, low-molecular-weight polyisobutylene: 10 ~ 15 parts, inorganic filler: 10 ~ 15 parts, antioxidant: 0.5 ~ 1 part, glass fibre: 5 ~ 10 parts, silicate: 5 ~ 10 parts.
The design principle of said structure is: utilize spacing block that 3 cross sections are isosceles trapezoid and the electric lead that 3 cross sections are isosceles trapezoid to carry out interval connection, namely spacing block interval is adopted to arrange between adjacent electrical conductor lines, then will form an external diameter is hexagon, internal diameter is the column structure of hexagonal hexagonal ring, utilize the protective feature of said structure, optical fiber component can be arranged in the cavity of above-mentioned column structure, because this structure is that employing 6 isosceles trapezoid modular structure combinations are formed, therefore when being subject to ambient pressure, adjacent isosceles trapezoid module can extrude mutually, and the optical fiber component in unique cavity can not be subject to the larger impact of external stress, thus protect optical fiber component, said structure can be subject to the extruding force of very strong circumferencial direction, the range of application of mixing cable can be improved, compare the mixing cable of traditional simple combination, stress levels can be improve the intensity of common wiring cable by this structure.
Preferably, described spacing block is electro-insulating rubber block.
Preferably, steel wire reinforcement 3 is provided with in described PE oversheath 1.
Preferably, the quantity of steel wire reinforcement 3 is the axis of line through Loose tube of the central point of 2,2 steel wire reinforcements 3.
In addition, amount of heat is produced because the electric lead in power transmission cable needs to overcome self-resistance in the process of transmission current, therefore these heats can affect the transmission performance of optical fiber, therefore existing transmission of electricity optical cable needs to overcome above-mentioned major issue, the optical fiber surface of transmitting electricity in optical cable is made to apply above-mentioned coating adhesive, thus play the heat of isolated transmission of electricity electric lead generation, thus overcome the impact of heat on optical fiber, preferably, the optical fiber 7 that outer surface has optical fiber surface coating adhesive 8 is provided with in fine layer of paste 6.
Optical fiber surface coating adhesive is made up of the raw material of following parts by weight: organic silicon rubber: 25 ~ 30 parts; High molecular weight polyisobutylene: 5 ~ 10 parts; Middle-molecular-weihydroxyethyl polyisobutene: 5 ~ 10 parts; Low-molecular-weight polyisobutylene: 10 ~ 15 parts; Inorganic filler: 10 ~ 15 parts; Antioxidant: 0.5 ~ 1 part; Glass fibre: 5 ~ 10 parts; Silicate: 5 ~ 10 parts.
The coating adhesive of said components composition, it possesses excellent hot strength, and its hot strength can reach 330Ka, also possesses excellent dielectric strength, can reach 12KV/mm; Also possess good sealing characteristics, have more the insulating characteristics of standby superelevation.
Coating adhesive of the present invention take polyisobutene as raw material, not containing double bond in polyisobutene molecular structure, for saturated linear polymer, therefore excellent thermal stability, resistance to chemical attack, resistance to ozone and weatherable characteristic is possessed, wherein be added with glass fibre and silicate, this coating adhesive can be made to possess superpower insulating characteristics, organic silicon rubber is heated in the present invention simultaneously, the high temperature resistant of coating adhesive and lower temperature resistance can be significantly improved, be applicable to severe cold and extremely hot region, for China cold district provides the feasible scheme of optical fiber erection.
The average relative molecular mass of described organic silicon rubber is 150,000 ~ 500,000.
The viscosity average molecular weigh of described high molecular weight polyisobutylene is 200,000 ~ 2,600,000.
The viscosity average molecular weigh of described middle-molecular-weihydroxyethyl polyisobutene is 40,000 ~ 8.5 ten thousand.
The number-average molecular weight of described low-molecular-weight polyisobutylene is 1000 ~ 3000.
Described inorganic filler is a kind of or several arbitrarily mixture in kaolin, talcum powder, calcium carbonate.
Described antioxidant is a kind of of antioxidant 264, antioxidant 1010 or antioxidant 168 or mixtures several arbitrarily.
The preparation method of optical fiber surface coating adhesive, it comprises the following steps:
S1. weigh: take each raw material according to the above ratio, for subsequent use;
S2. mediate: in rubber kneading machine, add high molecular weight polyisobutylene, organic silicon rubber, middle-molecular-weihydroxyethyl polyisobutene, low-molecular-weight polyisobutylene and antioxidant, glass fibre, silicate to mediate, kneading time is 30 ~ 50 minutes, and temperature is 120 ~ 160 DEG C;
S3. be in harmonious proportion: after kneading completes, add inorganic filler again, be in harmonious proportion, wherein time harmonic is 30 ~ 50 minutes, and temperature is 120 ~ 160 DEG C, and mediation rotating speed is 200 ~ 280rpm;
S4. extrude: be squeezed in Rubber Extruder by the sizing material after being in harmonious proportion through discharge screw, Rubber Extruder Extrusion Coating is at optical fiber surface, and wherein the barrel zone temperature of extruder is 100 ~ 150 DEG C, and head temperature is 120 ~ 140 DEG C.
As mentioned above, then well the present invention can be realized.
Claims (10)
1. heat insulation optical cable transmission of electricity mixing cable, it is characterized in that: comprise the packed layer (9) that inside is provided with optical fiber component and isosceles trapezoid module, packed layer (9) is coated with isolation layer (2), isolation layer is coated with PE oversheath (1), optical fiber component comprises Loose tube (5), fine layer of paste (6) is provided with in Loose tube, the optical fiber (7) that outer surface has optical fiber surface coating adhesive (8) is provided with in fine layer of paste (6), isosceles trapezoid module has 6, 6 isosceles trapezoid modules comprise electric lead that 3 cross sections are isosceles trapezoid and 3 cross sections are the spacing block of isosceles trapezoid, spacing block interval is adopted to arrange between adjacent electrical conductor lines, it is hexagon that all isosceles trapezoid modules enclose formation external diameter, internal diameter is hexagonal polygon ring, Loose tube is arranged in polygon ring, the axis of Loose tube and the dead in line of polygon ring, optical fiber surface coating adhesive is made up of the raw material of following parts by weight: organic silicon rubber: 25 ~ 30 parts, high molecular weight polyisobutylene: 5 ~ 10 parts, middle-molecular-weihydroxyethyl polyisobutene: 5 ~ 10 parts, low-molecular-weight polyisobutylene: 10 ~ 15 parts, inorganic filler: 10 ~ 15 parts, antioxidant: 0.5 ~ 1 part, glass fibre: 5 ~ 10 parts, silicate: 5 ~ 10 parts.
2. heat insulation optical cable transmission of electricity mixing cable according to claim 1, it is characterized in that, the average relative molecular mass of described organic silicon rubber is 150,000 ~ 500,000.
3. heat insulation optical cable transmission of electricity mixing cable according to claim 1, it is characterized in that, the viscosity average molecular weigh of described high molecular weight polyisobutylene is 200,000 ~ 2,600,000.
4. heat insulation optical cable transmission of electricity mixing cable according to claim 1, it is characterized in that, the viscosity average molecular weigh of described middle-molecular-weihydroxyethyl polyisobutene is 40,000 ~ 8.5 ten thousand.
5. heat insulation optical cable transmission of electricity mixing cable according to claim 1, it is characterized in that, the number-average molecular weight of described low-molecular-weight polyisobutylene is 1000 ~ 3000.
6. heat insulation optical cable transmission of electricity mixing cable according to claim 1, it is characterized in that, described inorganic filler is a kind of or several arbitrarily mixture in kaolin, talcum powder, calcium carbonate.
7. heat insulation optical cable transmission of electricity mixing cable according to claim 1, it is characterized in that, described antioxidant is a kind of of antioxidant 264, antioxidant 1010 or antioxidant 168 or mixtures several arbitrarily.
8. heat insulation optical cable transmission of electricity mixing cable according to claim 1, is characterized in that: described spacing block is electro-insulating rubber block.
9. heat insulation optical cable transmission of electricity mixing cable according to claim 1, is characterized in that: be provided with steel wire reinforcement (3) in described PE oversheath (1).
10. heat insulation optical cable transmission of electricity mixing cable according to claim 9, is characterized in that: the quantity of steel wire reinforcement (3) is the axis of line through Loose tube of the central point of 2,2 steel wire reinforcements (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510285413.3A CN105047294A (en) | 2015-05-29 | 2015-05-29 | Thermal insulation optical cable power transmission hybrid cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510285413.3A CN105047294A (en) | 2015-05-29 | 2015-05-29 | Thermal insulation optical cable power transmission hybrid cable |
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| Publication Number | Publication Date |
|---|---|
| CN105047294A true CN105047294A (en) | 2015-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510285413.3A Pending CN105047294A (en) | 2015-05-29 | 2015-05-29 | Thermal insulation optical cable power transmission hybrid cable |
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- 2015-05-29 CN CN201510285413.3A patent/CN105047294A/en active Pending
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Application publication date: 20151111 |