CN203338868U - Lightning protection cable for communication base station - Google Patents
Lightning protection cable for communication base station Download PDFInfo
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- CN203338868U CN203338868U CN2013203828109U CN201320382810U CN203338868U CN 203338868 U CN203338868 U CN 203338868U CN 2013203828109 U CN2013203828109 U CN 2013203828109U CN 201320382810 U CN201320382810 U CN 201320382810U CN 203338868 U CN203338868 U CN 203338868U
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- base station
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Abstract
The utility model, which belongs to the field of the cable technology, especially relates to a lightning protection cable for a communication base station. The lightning protection cable consists of a cable core, an inner sheath, an armored layer, an outer sheath, and a ground layer. To be specific, the cable core is formed by an optical unit and eclectic units; the optical unit includes a loose tube and a plurality of optical fibers arranged in the loose tube; and the electric units include conductors and insulated layers coating the conductors. The lightning protection cable is characterized in that a first protection layer coats the outside of the cable core; the inner sheath extrudes and coats the outside of the first protection layer; a second protection layer coats the outside of the inner sheath; the ground layer is arranged outside the second protection layer; the armored layer coats the outside of the ground layer; and the outer sheath extrudes and coats the outside of the armored layer. Besides, the armored layer is a single-surface film-coated steel belt; the surface of contact of the armored layer with the ground layer is a non film-coated surface; and the first protection layer and the second protection layer are mica tapes. The provided lightning protection cable has the following beneficial effects: the manufacturing is simple; the production speed is fast; the ground layer has the low electrical resistivity, and the maintenance cost is low.
Description
Technical field
The utility model belongs to technical field of cables, especially relates to the communication base station lightning retardant cable.
Background technology
Over nearly 20 years, China's information industry, with average annual 25% speed increase, is led over the development of other industries, has become the first pillar industry in industry.Expectation is in coming 10 years, and information industry will be turned over again.In the communication industry product, there is the communication that security performance is higher, with extraordinary lightning-proof optical cable product, good market prospects will be arranged.Along with the 3G network communication network development, also will consider the lightning protection measures of communication base station room, avoid catching fire because thunder and lightning causes communication base station and electric power interruption, machine room, to bring large-area communication disruption, equipment the major accident such as is burnt by thunderbolt, just need on the electric power between communication base station and steel tower, signal transmission product, consider safer product.Develop rapidly along with the 3G business, the construction scale of communication base station enlarges gradually, and the 3G communication network technology is built, and at least the whole nation needs the base station of 300,000 3G communication networks, if each base station needs the cable that length is 100 meters left and right, this will be a larger market.
Carried out effective research and obtained achievement preferably for the lightning protection of cable both at home and abroad.The applicant has also done a large amount of research and development aspect lightning protected cable, as: the utility model name is called: self-supporting lightning-proof power cable, the patent No. are: 200920150584.5; The utility model name is called: lightning-proof power cable, the patent No. are: 200920150583.0; The utility model name is called: lightning-proof optical cable, the patent No. are: 200920150582.6; The utility model name is called: have the lightning-proof power cable of reinforced layer, the patent No. to be: 200910140719.4; The utility model name is called: multigroup lightning protection optical cable, the patent No. are: 200910140717.5; The utility model name is called: self-supporting lightning-proof optical cable, the patent No. are: the patents such as 200910140715.6 have all formed product and have used in operator's communication base station.But they also have the following disadvantages: (1) ground plane adopts the tiltedly mode of bag, and speed of production is slower; (2) armour has only played the effect of armouring, and, after standing thunderbolt, the partial earthing layer in cable blows, and sheath is melted in the cable core interval insulated wire cores is combined together (3), makes insulated wire cores be difficult to separate; Can only make waste product processes.
Above-mentioned deficiency has strengthened the maintenance cost after the cable thunderbolt.
Summary of the invention
In order to address the above problem, the purpose of this utility model is to disclose a kind of communication base station lightning retardant cable of new construction, and it is realized by the following technical solutions.
The communication base station lightning retardant cable, include cable core, inner sheath 6, armour 9, oversheath 10, ground plane 8, cable core consists of light unit and electric unit, the light unit is by loose sleeve pipe 4 and be positioned at that the many optical fibers 3 of loose sleeve pipe form, and electric unit consists of conductor 1 and the insulating barrier 2 that envelopes conductor; It is characterized in that cable core is coated with the first protective layer 5, the inner sheath extrusion molding is coated on outside the first protective layer, inner sheath is coated with the second protective layer 7, ground plane is positioned at outside the second protective layer, and armour is coated on outside ground plane, and the oversheath extrusion molding is coated on outside armour; Armour is the one side film steel band, and the face that armour contacts with ground plane is non-overlay film face; The first protective layer, the second protective layer are all mica tape.
In embodiment 2 of the present utility model, the communication base station lightning retardant cable, include cable core, inner sheath 6, armour 9, oversheath 10, ground plane 8, dowel 11, messenger wire 13, messenger wire sheath 12, cable core consists of light unit and electric unit, the light unit is by loose sleeve pipe 4 and be positioned at that the many optical fibers 3 of loose sleeve pipe form, and electric unit consists of conductor 1 and the insulating barrier 2 that envelopes conductor; It is characterized in that cable core is coated with the first protective layer 5, the inner sheath extrusion molding is coated on outside the first protective layer, inner sheath is coated with the second protective layer 7, ground plane is positioned at outside the second protective layer, and armour is coated on outside ground plane, and the oversheath extrusion molding is coated on outside armour; Armour is the one side film steel band, and the face that armour contacts with ground plane is non-overlay film face; The first protective layer, the second protective layer are all mica tape; The messenger wire sheath is coated on outside messenger wire, and dowel one end connects the messenger wire sheath, the other end connects oversheath.
Communication base station lightning retardant cable described above, is characterized in that described ground plane consists of many copper bars or aluminium bar.
Communication base station lightning retardant cable described above, is characterized in that described ground plane is that the direction that favours the direction of cable core axis or be parallel to the cable core axis is coated on outside the second protective layer.
Communication base station lightning retardant cable described above, while it is characterized in that described ground plane is coated on outside the second protective layer with the direction that favours the cable core axis, the pitch of coating is 15-30 times of the second protective layer diameter.
Communication base station lightning retardant cable described above, is characterized in that described smooth unit and electric unit are that parallel mode is distributed in cable core or stranded mode is distributed in cable core with the one direction spiral.
Communication base station lightning retardant cable described above, it is characterized in that described the first protective layer be vertically or the mode of spiral be coated on outside cable core; While vertically coating, the overlapping width of overlap joint is 2-4mm; During helical coated, the overlap joint Duplication is 15%-30%.
Communication base station lightning retardant cable described above, the material that it is characterized in that described insulating barrier is polyvinyl chloride or high density polyethylene (HDPE) or medium density polyethylene or low smoke and zero halogen polyethylene.
Communication base station lightning retardant cable described above, the material that it is characterized in that described oversheath is high density polyethylene (HDPE) or medium density polyethylene or low smoke and zero halogen polyethylene.
Communication base station lightning retardant cable described above, the material that it is characterized in that described inner sheath is high density polyethylene (HDPE) or medium density polyethylene or low smoke and zero halogen polyethylene.
Communication base station lightning retardant cable described above, it is characterized in that described the first protective layer, the second protective layer are all synthetic mica tapes, and the thickness of mica tape is 0.1mm-2mm.
In the utility model, ground plane is metal, and the inner face of armour is non-coating layer with the ground plane contact-making surface, therefore be also metal level, makes not only adjacent contact of ground plane, and armour carried out parallel connection by it, ground plane is reached less resistance value; Standing thunderstorm hour, the caloric value in short-term of ground plane adds little, and the probability that therefore thunderbolt is blown reduces greatly; In addition, steel dress layer has also played armouring, against pressure, anti-effect of hitting.
In the utility model, the existence of the first protective layer, the second protective layer, isolated heat widely, in the thunderbolt situation, although may produce a large amount of heats, this heat, under the isolation of the first protective layer, the second protective layer, makes the work of the interior light unit of cable core, electric unit unaffected; In addition, thunderbolt high temperature can not enter the cable core gap after inner sheath is melted, and therefore, after thunderbolt, when temperature descends, sheath still can solidify, and does not substantially affect cable performance, and it is quite convenient to safeguard.
Adopt cable of the present utility model and the cable that does not improve structure jointly to use, used 2 years on 516 communication base stations, can not normally use for a long time after the cable that does not improve structure has 3 to be struck by lightning and to be struck by lightning; And cable of the present utility model has been subject to 3 thunderbolts equally, but do any replacing, as usual do not use.The applicant dissects for 3 cables that are struck by lightning; finding not improve in the cable core gap of cable of structure is all the inner sheath material melted; inseparable electric unit, the light unit of leaving; and cable of the present utility model; although inner sheath is because thawing has occurred that the part of thickness is inhomogeneous; but do not find the inner sheath melted and the inner sheath that melts after coagulation in cable core; electric unit, light unit are still separable; a bit do not have influenced; after strip off the first protective layer, cable core still can be used in other cable.
Cable of the present utility model when ground plane is parallel with the cable core axis, can be produced together in the oversheath extrusion process, does not need other stranded operation, and therefore, speed of production is faster, cost is lower.
Therefore, the utlity model has following main beneficial effect: making is simple, speed of production is fast, and ground plane resistivity is lower, maintenance cost is lower.
The accompanying drawing explanation
The perspective view that Fig. 1 is the utility model embodiment 1.
Fig. 2 is the cross-sectional structure schematic diagram that Fig. 1 amplifies.
The cross-sectional structure schematic diagram that Fig. 3 is the utility model embodiment 2.
Embodiment
Ask for an interview Fig. 1 and Fig. 2, the communication base station lightning retardant cable, include cable core, inner sheath 6, armour 9, oversheath 10, ground plane 8, cable core consists of light unit and electric unit, the light unit is by loose sleeve pipe 4 and be positioned at that the many optical fibers 3 of loose sleeve pipe form, and electric unit consists of conductor 1 and the insulating barrier 2 that envelopes conductor; It is characterized in that cable core is coated with the first protective layer 5, the inner sheath extrusion molding is coated on outside the first protective layer, inner sheath is coated with the second protective layer 7, ground plane is positioned at outside the second protective layer, and armour is coated on outside ground plane, and the oversheath extrusion molding is coated on outside armour; Armour is the one side film steel band, and the face that armour contacts with ground plane is non-overlay film face; The first protective layer, the second protective layer are all mica tape.
Ask for an interview Fig. 3, and with reference to figure 1 and Fig. 2, the communication base station lightning retardant cable, include cable core, inner sheath 6, armour 9, oversheath 10, ground plane 8, dowel 11, messenger wire 13, messenger wire sheath 12, cable core consists of light unit and electric unit, the light unit is by loose sleeve pipe 4 and be positioned at that the many optical fibers 3 of loose sleeve pipe form, and electric unit consists of conductor 1 and the insulating barrier 2 that envelopes conductor; It is characterized in that cable core is coated with the first protective layer 5, the inner sheath extrusion molding is coated on outside the first protective layer, inner sheath is coated with the second protective layer 7, ground plane is positioned at outside the second protective layer, and armour is coated on outside ground plane, and the oversheath extrusion molding is coated on outside armour; Armour is the one side film steel band, and the face that armour contacts with ground plane is non-overlay film face; The first protective layer, the second protective layer are all mica tape; The messenger wire sheath is coated on outside messenger wire, and dowel one end connects the messenger wire sheath, the other end connects oversheath.
The described communication base station lightning retardant cable of above-mentioned arbitrary embodiment, is characterized in that described ground plane consists of many copper bars or aluminium bar.
The described communication base station lightning retardant cable of above-mentioned arbitrary embodiment, is characterized in that described ground plane is that the direction that favours the direction of cable core axis or be parallel to the cable core axis is coated on outside the second protective layer.
Communication base station lightning retardant cable described above, while it is characterized in that described ground plane is coated on outside the second protective layer with the direction that favours the cable core axis, the pitch of coating is 15-30 times of the second protective layer diameter.
The described communication base station lightning retardant cable of above-mentioned arbitrary embodiment, is characterized in that described smooth unit and electric unit are that parallel mode is distributed in cable core or stranded mode is distributed in cable core with the one direction spiral.
The described communication base station lightning retardant cable of above-mentioned arbitrary embodiment, it is characterized in that described the first protective layer be vertically or the mode of spiral be coated on outside cable core; While vertically coating, the overlapping width of overlap joint is 2-4mm; During helical coated, the overlap joint Duplication is 15%-30%.
The described communication base station lightning retardant cable of above-mentioned arbitrary embodiment, the material that it is characterized in that described insulating barrier is polyvinyl chloride or high density polyethylene (HDPE) or medium density polyethylene or low smoke and zero halogen polyethylene.
The described communication base station lightning retardant cable of above-mentioned arbitrary embodiment, the material that it is characterized in that described oversheath is high density polyethylene (HDPE) or medium density polyethylene or low smoke and zero halogen polyethylene.
The described communication base station lightning retardant cable of above-mentioned arbitrary embodiment, the material that it is characterized in that described inner sheath is high density polyethylene (HDPE) or medium density polyethylene or low smoke and zero halogen polyethylene.
The described communication base station lightning retardant cable of above-mentioned arbitrary embodiment, it is characterized in that described the first protective layer, the second protective layer are all synthetic mica tapes, and the thickness of mica tape is 0.1mm-2mm.
In the utility model, ground plane is metal, and the inner face of armour is non-coating layer with the ground plane contact-making surface, therefore be also metal level, makes not only adjacent contact of ground plane, and armour carried out parallel connection by it, ground plane is reached less resistance value; Standing thunderstorm hour, the caloric value in short-term of ground plane adds little, and the probability that therefore thunderbolt is blown reduces greatly; In addition, steel dress layer has also played armouring, against pressure, anti-effect of hitting.
In the utility model, the existence of the first protective layer, the second protective layer, isolated heat widely, in the thunderbolt situation, although may produce a large amount of heats, this heat, under the isolation of the first protective layer, the second protective layer, makes the work of the interior light unit of cable core, electric unit unaffected; In addition, thunderbolt high temperature can not enter the cable core gap after inner sheath is melted, and therefore, after thunderbolt, when temperature descends, sheath still can solidify, and does not substantially affect cable performance, and it is quite convenient to safeguard.
Adopt cable of the present utility model and the cable that does not improve structure jointly to use, used 2 years on 516 communication base stations, can not normally use for a long time after the cable that does not improve structure has 3 to be struck by lightning and to be struck by lightning; And cable of the present utility model has been subject to 3 thunderbolts equally, but do any replacing, as usual do not use.The applicant dissects for 3 cables that are struck by lightning; finding not improve in the cable core gap of cable of structure is all the inner sheath material melted; inseparable electric unit, the light unit of leaving; and cable of the present utility model; although inner sheath is because thawing has occurred that the part of thickness is inhomogeneous; but do not find the inner sheath melted and the inner sheath that melts after coagulation in cable core; electric unit, light unit are still separable; a bit do not have influenced; after strip off the first protective layer, cable core still can be used in other cable.
Cable of the present utility model when ground plane is parallel with the cable core axis, can be produced together in the oversheath extrusion process, does not need other stranded operation, and therefore, speed of production is faster, cost is lower.
Therefore, the utlity model has following main beneficial effect: making is simple, speed of production is fast, and ground plane resistivity is lower, maintenance cost is lower.
The utility model is not limited to above-mentioned preferred forms, should be appreciated that design of the present utility model can be by other various forms enforcement utilizations, and they drop in protection range of the present utility model equally.
Claims (10)
1. communication base station lightning retardant cable, include cable core, inner sheath, armour, oversheath, ground plane, cable core consists of light unit and electric unit, the light unit is by loose sleeve pipe and be positioned at that many optical fibers of loose sleeve pipe form, and electric unit consists of conductor and the insulating barrier that envelopes conductor; It is characterized in that cable core is coated with the first protective layer, the inner sheath extrusion molding is coated on outside the first protective layer, inner sheath is coated with the second protective layer, ground plane is positioned at outside the second protective layer, and armour is coated on outside ground plane, and the oversheath extrusion molding is coated on outside armour; Armour is the one side film steel band, and the face that armour contacts with ground plane is non-overlay film face; The first protective layer, the second protective layer are all mica tape.
2. communication base station lightning retardant cable, include cable core, inner sheath, armour, oversheath, ground plane, dowel, messenger wire, messenger wire sheath, cable core consists of light unit and electric unit, the light unit is by loose sleeve pipe and be positioned at that many optical fibers of loose sleeve pipe form, and electric unit consists of conductor and the insulating barrier that envelopes conductor; It is characterized in that cable core is coated with the first protective layer, the inner sheath extrusion molding is coated on outside the first protective layer, inner sheath is coated with the second protective layer, ground plane is positioned at outside the second protective layer, and armour is coated on outside ground plane, and the oversheath extrusion molding is coated on outside armour; Armour is the one side film steel band, and the face that armour contacts with ground plane is non-overlay film face; The first protective layer, the second protective layer are all mica tape; The messenger wire sheath is coated on outside messenger wire, and dowel one end connects the messenger wire sheath, the other end connects oversheath.
3. according to claim 1 or communication base station lightning retardant cable claimed in claim 2, it is characterized in that described ground plane consists of many copper bars or aluminium bar.
4. according to claim 1 or communication base station lightning retardant cable claimed in claim 2, it is characterized in that described ground plane is that the direction that favours the direction of cable core axis or be parallel to the cable core axis is coated on outside the second protective layer.
5. communication base station lightning retardant cable according to claim 4, while it is characterized in that described ground plane is coated on outside the second protective layer with the direction that favours the cable core axis, the pitch of coating be the second protective layer diameter 15-30 doubly.
6. according to claim 1 or communication base station lightning retardant cable claimed in claim 2, it is characterized in that described smooth unit and electric unit are that parallel mode is distributed in cable core or stranded mode is distributed in cable core with the one direction spiral.
7. according to claim 1 or communication base station lightning retardant cable claimed in claim 2, it is characterized in that described the first protective layer be vertically or the mode of spiral be coated on outside cable core; While vertically coating, the overlapping width of overlap joint is 2-4mm; During helical coated, the overlap joint Duplication is 15%-30%.
8. according to claim 1 or communication base station lightning retardant cable claimed in claim 2, the material that it is characterized in that described insulating barrier is polyvinyl chloride or high density polyethylene (HDPE) or medium density polyethylene or low smoke and zero halogen polyethylene.
9. according to claim 1 or communication base station lightning retardant cable claimed in claim 2, the material that it is characterized in that described oversheath is high density polyethylene (HDPE) or medium density polyethylene or low smoke and zero halogen polyethylene; The material of described inner sheath is high density polyethylene (HDPE) or medium density polyethylene or low smoke and zero halogen polyethylene.
10. according to claim 1 or communication base station lightning retardant cable claimed in claim 2, it is characterized in that described the first protective layer, the second protective layer are all synthetic mica tapes, and the thickness of mica tape is 0.1mm-2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203828109U CN203338868U (en) | 2013-07-01 | 2013-07-01 | Lightning protection cable for communication base station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203828109U CN203338868U (en) | 2013-07-01 | 2013-07-01 | Lightning protection cable for communication base station |
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| Publication Number | Publication Date |
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| CN203338868U true CN203338868U (en) | 2013-12-11 |
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| CN2013203828109U Expired - Fee Related CN203338868U (en) | 2013-07-01 | 2013-07-01 | Lightning protection cable for communication base station |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103794288A (en) * | 2014-01-16 | 2014-05-14 | 安徽国华电缆集团有限公司 | Anti-lightning power cable |
| CN103985445A (en) * | 2014-06-07 | 2014-08-13 | 吴俊� | Separation-type lightning protection cable |
| CN103985446A (en) * | 2014-06-07 | 2014-08-13 | 吴俊� | Lightning protection composite cable |
| CN104167243A (en) * | 2014-09-03 | 2014-11-26 | 吴俊� | Lightning-proof optical and electric compound cable for communication base station and manufacturing method of lightning-proof optical and electric compound cable |
-
2013
- 2013-07-01 CN CN2013203828109U patent/CN203338868U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103794288A (en) * | 2014-01-16 | 2014-05-14 | 安徽国华电缆集团有限公司 | Anti-lightning power cable |
| CN103794288B (en) * | 2014-01-16 | 2016-06-01 | 安徽国华电缆集团有限公司 | A kind of lightning-proof power cable |
| CN103985445A (en) * | 2014-06-07 | 2014-08-13 | 吴俊� | Separation-type lightning protection cable |
| CN103985446A (en) * | 2014-06-07 | 2014-08-13 | 吴俊� | Lightning protection composite cable |
| CN103985446B (en) * | 2014-06-07 | 2016-09-07 | 国网山东省电力公司沂水县供电公司 | Anti-lightning strike composite cable |
| CN104167243A (en) * | 2014-09-03 | 2014-11-26 | 吴俊� | Lightning-proof optical and electric compound cable for communication base station and manufacturing method of lightning-proof optical and electric compound cable |
| CN105609170A (en) * | 2014-09-03 | 2016-05-25 | 吴俊� | Lightning protection photoelectric composite cable, grounding layer, armoured layer and manufacturing methods for grounding layer and armoured layer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 Termination date: 20150701 |
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| EXPY | Termination of patent right or utility model |