CN102314962A - Special composite branch cable used for railway tunnels - Google Patents
Special composite branch cable used for railway tunnels Download PDFInfo
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- CN102314962A CN102314962A CN201110243135A CN201110243135A CN102314962A CN 102314962 A CN102314962 A CN 102314962A CN 201110243135 A CN201110243135 A CN 201110243135A CN 201110243135 A CN201110243135 A CN 201110243135A CN 102314962 A CN102314962 A CN 102314962A
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Abstract
A special composite branch cable used for railway tunnels belongs to the cable manufacturing technology field. The special composite branch cable comprises: a main cable, an extension cable, a copper C-shaped fixture branch connector and a branch connector sheath. The extension cable is connected with the main cable through the copper C-shaped fixture branch connector. The main cable comprises a cable core and a sheath. The extension cable comprises the cable core and the sheath. The cable cores of the main cable and the extension cable are provided with a power cable core and a control cable core, wherein the power cable core contains three to five cores. The control cable core is arranged in an edge gap of the power cable core. Non-alkali glass fiber filling ropes are filled in cable core surroundings of the main cable and the extension cable. The cable core of the main cable is wrapped with a high flame retardant wrapping tape. A low smoke halogen free-flame retardant is extruded on the high flame retardant wrapping tape. The cable can bear control signal transmission of low voltage electricity. Distribution safety is high and costs are low.
Description
Technical field
The invention discloses a kind of railway tunnel with extraordinary compound branch cable, belong to the cables manufacturing technical field.
Background technology
Branch cable uses in China has had 16 years, and security incident did not take place.Because its unique tree structure, help the construction of cable, shortened construction period greatly, branch cable standardization in factory is made, and reasonably mould, reasonably crimping tool and streamlined production has guaranteed the reliability of branch cable joint.Advantage just because of branch cable is outstanding, so brought into use branch cable in a lot of fields.Branch cable is to be used in middle-high building when China's exploitation is used; Be generalized to common buildings, high-rise building at leisure; The staple market of branch cable is the real estate field, and variation has taken place in market now, the also widely-used branch cable of freeway tunnel and subway, light rail.
The branch cable use occasion is generally civil buildings on the middle and senior level and office block, stadium, hospital etc.; General power cable and the control cable of adopting in the railway tunnel, on-the-spot location, the on-the-spot connection; Such job site is more random; Cause construction period long, operating expenses is than higher, and power supply reliability is relatively poor relatively.Therefore, the branch cable that needs a kind of railway tunnel simple in structure, that distribution is safe, cost is low to use.
Summary of the invention
The objective of the invention is prior art is improved, provide a kind of railway tunnel with extraordinary compound branch cable, this cable can carry simultaneously that transmission, the distribution of the control signal of low-voltage power is safe, cost is low.
The objective of the invention is to realize through following technical scheme; Railway tunnel is with extraordinary compound branch cable; Comprise main cable, branch cable, copper C clamp tool branch connector, branch's connector sheath; Branch cable connects main cable through copper C clamp tool branch connector, and said main cable comprises cable core and sheath, and said branch cable comprises cable core and sheath; The cable core of said main cable and branch cable is equipped with power cable core and control cable core; The power cable core is 3～5 cores, and the control cable core is arranged in the slit, edge of power cable core, fills the alkali-free glass wool gasket for packing around the cable core of said main cable and branch cable; The outer wrapped high flame retardant twining package tape of the cable core of said main cable extrudes low-smoke halogen-free flame-retardant sheath on the high flame retardant twining package tape; Said power cable core is an overlapping wrapped synthetic mica tape on conductor; Extruding crosslinked polyethylene or polyvinyl chloride insulation layer on the synthetic mica tape constitutes; Said conductor is by stranded the forming of TR type copper single line that meets the GB/T3953 regulation, and the rate of putting up of said mica tape is 40-50%.
The outer wrapped nonwoven fabrics of the cable core of described power cable core and the stranded stranding of control cable core.
Described branch connector sheath is low smoke and zero halogen injection moulding sheath or polyvinyl chloride injection molding material.
Said control cable core is to set gradually insulating barrier, screen and sheath on the conductor to constitute; Described conductor is zinc-plated or not zinc-plated annealed copper wire; Described insulating barrier is PVC insulating barrier or low smoke and zero halogen cross-linking radiation insulating barrier; Described screen is copper strips screen or copper wire woven shield, and said sheath is PVC sheath or low smoke and zero halogen sheath.
Said control cable core is 2～4 cores.
Said control cable core constitutes the control core by 2～4 core insulation core strandings that insulating barrier is set on the conductor together; Put total screen at control core peripheral hardware again; Outside total screen, extrude sheath and constitute, described conductor is zinc-plated or not zinc-plated annealed copper wire, and described insulating barrier is PVC insulating barrier or low smoke and zero halogen cross-linking radiation insulating barrier; Described screen is copper strips screen or copper wire woven shield, and said sheath is PVC sheath or low smoke and zero halogen sheath.
The new structure that the present invention adopts power cable to combine with control cable, the power cable transferring electric power is used for illumination and socket electricity consumption, control cable transmission of control signals, control interlocking equipment.Disturb for fear of the signal of power cable control cable, wrapped copper strips or establishment copper wire outside the control cable core, for many control cable cores, can be individually shielded, also can always shield.This combining structure helps simplifying laying-out, makes cable that clear route, simple is installed, and practices thrift purchase cost and construction cost.
The power cable core conductor adopts stranded the forming of copper single line that meets the GB/T3953 regulation, guarantees conductor purity, and product has excellent conducting performance and mechanical performance.
The annealing single line that control cable core conductor adopts can be zinc-plated or not zinc-plated, adopts the 1st kind of circular solids conductor or the 2nd kind of circular stranded conductor of meeting GB/T 3956.
The power cable core insulation adopts crosslinked polyethylene or polyvinyl chloride as insulating material; Behind warm water crosslinking or vapor crosslinking, have good insulation performance performance, heat-resistant stability and cross heat aging performance; And the thermal shock in the time of standing high-temperature injection and not being destroyed; And polyvinyl chloride insulation is soft, but temperature resistant grade is low a little; The control cable core adopts polychloroethylene insulation material, increases the core pliability.
In order to increase the roundness of cable, filling inserts in the slit around the cable core, the inserts of cable core adopts non-absorbent material; If high flame retardant type product can adopt the alkali-free glass wool rope, the alkali-free glass wool rope is an incombustible, can not catch fire, and when playing the cable filling, increases fire resistance.
The sheath material of control cable core has adopted the low-smoke halogen-free polyolefin protective cover material or the pvc sheathing compound of environment-protecting clean, according to the required selection of user, dual mode can be arranged.During the low smoke and zero halogen material combustion amount of being fuming little, do not produce the hydrogen halide that is pernicious to people, environment is not caused direct pollution and secondary pollution, be green material; And pvc sheathing compound intensity is high, and environmental resistance is better than low smoke and zero halogen protective cover material, and two kinds of materials are each has something to recommend him.
The material of branch's connector is high-purity copper or copper alloy, and " C " type structural design that its thick middle both sides are thin helps solving cable conductor and expands with heat and contract with cold and change cause loosening, reaches and improves the product purpose of shelf life.
Branch's union body sheath adopts low-smoke non-halogen flame-retardant clean type injection molding material; This material flowability is good, the connected body smooth surface of injection moulding, and also material is not halogen-containing; Do not produce harmful gas and material during burning; Printing opacity power is high, helps withdrawing of personnel and object, and environment does not cause secondary harm yet.Branch's union body sheath also can adopt the polyvinyl chloride injection molding material, and environmental resistance is good.Adopt which kind of material to depend on the oversheath of cable, select the injection molding material of base-material of the same race according to jacket material.
Railway tunnel has been widened the application of branch cable with the application of extraordinary compound branch cable, has also improved site operation efficient.The structure of this product and common branch cable have essential distinction; The backbone of common branch cable and branch line core are the power cable core, are generally 1～5 core, and backbone of this product and branch line are the electric power core and the control core combines; Two kinds of cores are stranding together; Laying up pitch is identical, and the power cable core is 3～5 cores, and the control cable core is 2～4 cores.Several control cable cores can singlely be filled in several gaps between the power cable core respectively, and at this moment every control cable insulated wire cores is individually shielded.Another kind of structure be many control cable core strandings together;, control cable always shields outside becoming cable core again; Control cable after total shielding becomes cable core as the single line core, and is with other power cable insulation core stranding, loose in order to prevent into cable core; Wrapped one deck band during stranding becomes cable core to extrude plastic sheath outward.This product combines power cable and control cable in one, and the factory normalization preparation joint has improved power supply reliability greatly, has simplified the installation circuit.
Railway tunnel is taken all factors into consideration from cable transmission and control signal transmission with the design of extraordinary compound branch cable, in order to simplify the installation circuit, improves confession distribution reliability.When the major function of this compound branch cable just provides illumination and device power supply (DPS); Can carry the transmission of control signal; Let a plurality of distribution system combined operations, also can control the equipment that cable connects and control the power cable connected equipment, reduce operating personnel's security risk.
The present invention has the following advantages:
1, control cable and power cable combining structure, it is little to take up room, easy for installation;
2, control cable has good shielding, and the signal transmission is interference-free;
3, branch's connector change in resistance is little, Heat stability is good;
4, connector, long product lifecycle are made in standardization;
5, connector good airproof performance, moistureproof, waterproof;
6, good bending property is convenient to complex environment and is installed;
7, anti-seismic performance is good, and shake does not influence use;
8, prefabrication shortens the engineering construction cycle;
9, comprehensive structure helps cost savings.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of vertical view of the present invention;
Among the figure: 1 power cable core conductor, 2 power cable core insulation layers, 3 gasket for packings, 4 flame-retardant layers, 5 sheaths, 6 control cable core conductors, 7 control cable core insulating barriers, 8 control cable core screens, 9 control cable core sheaths, 10C shape jockey, 11 branch's connector sheaths.
Embodiment
Overlapping wrapped synthetic mica tape on the stranded conductor that forms of TR type copper single line that meets the GB/T3953 regulation, extruded insulation layer on the synthetic mica tape constitutes the power cable core.
Conductor meets the requirement of 2 types of conductors among the GB/3956.
The rate of putting up of synthetic mica tape is 40-50%, and the mica tape heatproof can reach 1000 ℃.
Insulating barrier can be crosslinked polyetylene insulated layer or polyvinyl chloride insulation layer.Adopt crosslinked polyethylene or polyvinyl chloride as insulating material; Behind warm water crosslinking or vapor crosslinking, have good insulation performance performance, heat-resistant stability and cross heat aging performance; And the thermal shock in the time of standing high-temperature injection and not being destroyed; And polyvinyl chloride insulation is soft, but temperature resistant grade is low a little.
Set gradually insulating barrier, screen and sheath on the conductor, constitute the control cable core: conductor is zinc-plated or not zinc-plated annealed copper wire, and conductor adopts the 1st kind of circular solids conductor or the 2nd kind of circular stranded conductor that meets GB/T 3956; Insulating barrier is PVC insulating barrier or low smoke and zero halogen cross-linking radiation insulating barrier, and PVC insulating barrier performance meets GB/T 9330.2 requirements; Screen is the copper strips screen, and screen also can adopt the copper wire woven shield; Sheath is PVC sheath or low smoke and zero halogen sheath.
Sheath material adopts the low-smoke halogen-free polyolefin protective cover material or polyvinyl chloride (PVC) protective cover material of environment-protecting clean, according to the required selection of user, dual mode can be arranged.During the low smoke and zero halogen material combustion amount of being fuming little, do not produce the hydrogen halide that is pernicious to people, environment is not caused direct pollution and secondary pollution, be green material; And pvc sheathing compound intensity is high, and environmental resistance is better than low smoke and zero halogen protective cover material, increases the core pliability, and two kinds of materials are each has something to recommend him.
With electric-cable core and the stranded stranding of control cable cable core; Fill the non-hygroscopic packed layer in the slit of the cable core of stranding and guarantee cable outward appearance rounding; The outer wrapped high flame retardant twining package tape of the cable core of stranding extrudes low-smoke halogen-free flame-retardant sheath on the high flame retardant twining package tape, constitutes main cable.Inserts can adopt the alkali-free glass wool rope, and the alkali-free glass wool rope is an incombustible, can not catch fire, and when playing the cable filling, increases fire resistance.Loose in order to prevent into cable core, the outer wrapped layer of non-woven fabric band of the cable core of stranding.
The stranded mode of power cable core and control cable core: the control cable core is placed in the slit of power cable core: as shown in Figure 1; With the main cable is example; 4 power cable cores are placed with concentrically ringed mode; 1 control cable core is placed on the center of 4 power cable cores, 4 control cable cores is separately positioned in 4 slits of periphery of 4 power cable cores, with the stranded stranding of cabler; With the branch cable is example, and 3 power cable cores are placed to three-legged structure, 2 control cable cores is placed in any two spaces in 3 peripheral spaces of 3 power cable cores, with the stranded stranding of cabler; Adopt the control cable core of this stranding mode stranding to adopt individually shielded mode, promptly all be provided with screen on every control cable core.
Branch cable connects main cable through copper C clamp tool branch connector, and copper C clamp tool is provided with branch's connector sheath outward, constitutes railway tunnel with extraordinary compound branch cable.
The material of copper C clamp tool branch connector is high-purity copper or copper alloy, and " C " type structural design that its thick middle both sides are thin helps solving cable conductor and expands with heat and contract with cold and change cause loosening, reaches and improves the product purpose of shelf life.
Branch's connector sheath adopts low-smoke non-halogen flame-retardant clean type injection molding material; This material flowability is good, the connected body smooth surface of injection moulding, and also material is not halogen-containing; Do not produce harmful gas and material during burning; Printing opacity power is high, helps withdrawing of personnel and object, and environment does not cause secondary harm yet.Branch's connector sheath also can adopt the polyvinyl chloride injection molding material, and environmental resistance is good.Adopt which kind of material to depend on the oversheath of cable, select the injection molding material of base-material of the same race according to jacket material.
The distinctive points of the structure of the structure of embodiment 2 and embodiment 1 is:
PVC insulating barrier or low smoke and zero halogen cross-linking radiation insulating barrier are set on zinc-plated or not zinc-plated annealed copper wire conductor, constitute the control cable insulated wire cores.Conductor adopts the 1st kind of circular solids conductor or the 2nd kind of circular stranded conductor that meets GB/T 3956.
Earlier 2-4 root control cable insulated wire cores is twisted into the control core with cabler, adds worker's copper strips screen or copper wire woven shield, outside screen, extrude PVC sheath or low smoke and zero halogen sheath, constitute the control cable core at the control core; Again the control cable core is placed in the slit, 3-5 root power cable core edge, is twisted into cable core with cabler afterwards.
Combine accompanying drawing that execution mode of the present invention has been done detailed description above; But the present invention is not limited to above-mentioned execution mode; In the ken that affiliated technical field those of ordinary skill is possessed, can also under the prerequisite that does not break away from aim of the present invention, make various variations.
Claims (6)
1. railway tunnel is with extraordinary compound branch cable; Comprise main cable, branch cable, copper C clamp tool branch connector, branch's connector sheath, branch cable connects main cable through copper C clamp tool branch connector, and described main cable comprises cable core and sheath; Described branch cable comprises cable core and sheath; It is characterized in that the cable core of said main cable and branch cable is equipped with power cable core and control cable core, the power cable core is 3～5 cores; The control cable core is arranged in the slit, edge of power cable core, fills the alkali-free glass wool gasket for packing around the cable core of said main cable and branch cable; The outer wrapped high flame retardant twining package tape of the cable core of said main cable extrudes low-smoke halogen-free flame-retardant sheath on the high flame retardant twining package tape; Said power cable core is an overlapping wrapped synthetic mica tape on conductor; Extruding crosslinked polyethylene or polyvinyl chloride insulation layer on the synthetic mica tape constitutes; Said conductor is by stranded the forming of TR type copper single line that meets the GB/T3953 regulation, and the rate of putting up of said mica tape is 40-50%.
2. railway tunnel according to claim 1 is characterized in that with extraordinary compound branch cable, the outer wrapped nonwoven fabrics of the cable core of described power cable core and the stranded stranding of control cable core.
3. railway tunnel according to claim 1 is characterized in that with extraordinary compound branch cable described branch connector sheath is low smoke and zero halogen injection moulding sheath or polyvinyl chloride injection molding material.
4. railway tunnel according to claim 1 is with extraordinary compound branch cable; It is characterized in that; Said control cable core is to set gradually insulating barrier, screen and sheath on the conductor to constitute, and described conductor is zinc-plated or not zinc-plated annealed copper wire, and described insulating barrier is PVC insulating barrier or low smoke and zero halogen cross-linking radiation insulating barrier; Described screen is copper strips screen or copper wire woven shield, and said sheath is PVC sheath or low smoke and zero halogen sheath.
5. railway tunnel according to claim 1 is characterized in that with extraordinary compound branch cable said control cable core is 2～4 cores.
6. railway tunnel according to claim 1 is with extraordinary compound branch cable; It is characterized in that; Said control cable core constitutes the control core by 2～4 core insulation core strandings that insulating barrier is set on the conductor together, puts total screen at control core peripheral hardware again, outside total screen, extrudes sheath and constitutes; Described conductor is zinc-plated or not zinc-plated annealed copper wire; Described insulating barrier is PVC insulating barrier or low smoke and zero halogen cross-linking radiation insulating barrier, and described screen is copper strips screen or copper wire woven shield, and said sheath is PVC sheath or low smoke and zero halogen sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110243135A CN102314962A (en) | 2011-08-24 | 2011-08-24 | Special composite branch cable used for railway tunnels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110243135A CN102314962A (en) | 2011-08-24 | 2011-08-24 | Special composite branch cable used for railway tunnels |
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| CN102314962A true CN102314962A (en) | 2012-01-11 |
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| CN201110243135A Pending CN102314962A (en) | 2011-08-24 | 2011-08-24 | Special composite branch cable used for railway tunnels |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102831970A (en) * | 2012-08-15 | 2012-12-19 | 无锡市东田电缆有限公司 | Novel insulation shield cable |
| CN103871559A (en) * | 2014-02-24 | 2014-06-18 | 安徽华联电缆集团有限公司 | Cable used for aerospace |
| CN104505164A (en) * | 2014-12-23 | 2015-04-08 | 张家港金海港电线电缆有限公司 | Composite branch cable |
| CN105186237A (en) * | 2015-08-03 | 2015-12-23 | 深圳市金达照明有限公司 | DMX control device tree-shaped branch cable |
| CN107305801A (en) * | 2016-04-20 | 2017-10-31 | 无锡市苏南电缆有限公司 | A kind of new branch cable |
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| JP2000003624A (en) * | 1998-06-16 | 2000-01-07 | Yazaki Corp | Nonhalogen fire-resistant branch cable |
| CN2773962Y (en) * | 2004-10-29 | 2006-04-19 | 宝胜科技创新股份有限公司 | Dynamic-distributing branched electric cable |
| CN2919635Y (en) * | 2006-01-10 | 2007-07-04 | 宝胜科技创新股份有限公司 | Branch line protecting type branch cable |
| CN201000776Y (en) * | 2006-12-28 | 2008-01-02 | 宝胜科技创新股份有限公司 | Radiation crosslinked branch cable |
| CN101521052A (en) * | 2009-04-20 | 2009-09-02 | 宝胜科技创新股份有限公司 | Multi-core integrated branch cable and production method thereof |
| CN201477943U (en) * | 2009-07-28 | 2010-05-19 | 无锡市沪安电线电缆有限公司 | Special cable for tunnel lighting |
| CN201910285U (en) * | 2010-10-25 | 2011-07-27 | 宝胜科技创新股份有限公司 | Branch cable used in high-security place |
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2011
- 2011-08-24 CN CN201110243135A patent/CN102314962A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2000003624A (en) * | 1998-06-16 | 2000-01-07 | Yazaki Corp | Nonhalogen fire-resistant branch cable |
| CN2773962Y (en) * | 2004-10-29 | 2006-04-19 | 宝胜科技创新股份有限公司 | Dynamic-distributing branched electric cable |
| CN2919635Y (en) * | 2006-01-10 | 2007-07-04 | 宝胜科技创新股份有限公司 | Branch line protecting type branch cable |
| CN201000776Y (en) * | 2006-12-28 | 2008-01-02 | 宝胜科技创新股份有限公司 | Radiation crosslinked branch cable |
| CN101521052A (en) * | 2009-04-20 | 2009-09-02 | 宝胜科技创新股份有限公司 | Multi-core integrated branch cable and production method thereof |
| CN201477943U (en) * | 2009-07-28 | 2010-05-19 | 无锡市沪安电线电缆有限公司 | Special cable for tunnel lighting |
| CN201910285U (en) * | 2010-10-25 | 2011-07-27 | 宝胜科技创新股份有限公司 | Branch cable used in high-security place |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102831970A (en) * | 2012-08-15 | 2012-12-19 | 无锡市东田电缆有限公司 | Novel insulation shield cable |
| CN103871559A (en) * | 2014-02-24 | 2014-06-18 | 安徽华联电缆集团有限公司 | Cable used for aerospace |
| CN103871559B (en) * | 2014-02-24 | 2015-12-30 | 安徽华联电缆集团有限公司 | A kind of aerospace line cable |
| CN104505164A (en) * | 2014-12-23 | 2015-04-08 | 张家港金海港电线电缆有限公司 | Composite branch cable |
| CN105186237A (en) * | 2015-08-03 | 2015-12-23 | 深圳市金达照明有限公司 | DMX control device tree-shaped branch cable |
| CN107305801A (en) * | 2016-04-20 | 2017-10-31 | 无锡市苏南电缆有限公司 | A kind of new branch cable |
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Application publication date: 20120111 |