CN200993895Y

CN200993895Y - Indoor-outdoor high performance data cable

Info

Publication number: CN200993895Y
Application number: CN 200620165405
Authority: CN
Inventors: 黄建锋
Original assignee: JIANGSU JIANGYANG CABLE CO Ltd
Current assignee: JIANGSU JIANGYANG CABLE CO Ltd
Priority date: 2006-12-06
Filing date: 2006-12-06
Publication date: 2007-12-19
Anticipated expiration: 2016-12-06

Abstract

An indoors and outdoors high performance data cable belongs to the cable technical field. The utility model is characterized in that the utility model is provided with a line pair composed of a twisted conductor 1 with an insulation 2, a strengthening cross framework 3, a waterproofing filling 4, a shielding earth wire 5, a aluminum plastic composite belt shielding layer 6, a polyester belt heat shield 7, and a outer sheath 9. The four grooves of the strengthening cross framework 3 are respectively provided with the line pair, the waterproofing filling 4 and the shielding earth wire 5. The strengthening cross framework 3 is covered with the aluminum plastic composite belt shielding layer 6, which is covered by the polyester belt heat shield 7 and provided with and the outer sheath 9. Being provided with rational and simple structure, easy manufacturing, good functional performance, light product weight, good tensile property and plasticity, moisture proof, good shielding effect, and stable and rapid data transmission, the utility model is applicable to the indoors, outdoors and industrial control, in particular to be used under such conditions as damp environment, direct sunlight, and serious oil stain etc.

Description

The indoor and outdoor high-performance data cable

Technical field

The utility model relates to the structure of cable, belongs to the cable technology field.

Background technology

Along with development of human society, people present explosive growth for the demand of information, network has obtained tremendous development, meanwhile network security, data security, transmission rate, transmission bandwidth and circuit reliability etc. are also proposed higher requirement, particularly commercial office, control and automatic field are more urgent for the requirement of reliability.And existing 5 classes, surpass 5 classes and 6 class cable constructions install in owing to elongate cable with excessive tensile force, cause the too much loss of signal (decay) and signal delay.Carrying is during cable, and twisted-pair feeder may scatter, and changes line in the heart spacing in the lead, causes imbalance.Line to have more coupling (crosstalking), signal echo transmits (return loss), does not reach designing requirement originally.After installing, because the high temperature of external environment condition, solar radiation, ultraviolet radiation, electromagnetism, radio frequency interference etc. all can cause certain influence to cable performance.More than 20 ℃ the time, 1 ℃ of every increase, the decay of 5e class cable can increase by 0.4%.In the time of 60 ℃, decay can increase by 16%; When cable is exposed to ultraviolet following time in the sunlight, the plastic sheath of cable will accelerated decomposition, and mechanical strength begins to reduce, and shortens the useful life of cable.The threat of water in addition, except being affected by the cable sheath water inlet, water-immersed possibility of cable beginning is also arranged, the twisted-pair feeder of data cable inner tight can promote the capillary reaction, can suck the water outside the great distances in the cable, destroy the electrical characteristic of cable.Above-mentioned factor all might cause cable transmission to lose, and will no longer be cable itself in case change loss.

The utility model content

The purpose of this utility model is in view of existing 5 classes, surpasses the many deficiencies in 5 classes and the different occasions uses of 6 class cables, by a large amount of investigations and research work, provide a kind of mechanical strength good, good bending property is arranged, high-low temperature resistant, anti-interference, message transmission rate height, the reliable indoor and outdoor of safety and stability high-performance data cable.

The purpose of this utility model is to realize like this; indoor; outer high-performance data cable; it is characterized in that being provided with two has the conductor 1 of insulating barrier 2 right through the group line that twisting constitutes; reinforced crossing skeleton 3; block water and fill 4; bonding line 5; aluminium-plastic tape screen 6; polyester belt thermal-protective coating 7 and oversheath 9; it is right that the group line is set respectively in four grooves of reinforced crossing skeleton 3; filling 4 and bonding line 5 block water; aluminium-plastic tape screen 6 is wrapped on reinforced crossing skeleton 3, wrapped polyester belt thermal-protective coating 7 and oversheath 9 is set on aluminium-plastic tape screen 6.

Be provided with aramid fiber layer 8 between described thermal-protective coating 7 and the oversheath 9.

The cross that described reinforced crossing skeleton extrudes for the halogen-free flame-retardant polyolefine material, the cross center is provided with the aramid fiber bundle, and the surface is coated with the coat of metal.

Described blocking water fills 4 for mixing the polyester yarn fiber (the bloated yarn of splashing promptly blocks water) of water-proofing powder.

The utility model is rational in infrastructure simple, manufactures easily, and serviceability is good.Product weight is light, and tensile property, flexibility are good, and moistureproof damp proof, shield effectiveness is good, and transfer of data is fast stable.Be suitable for using in indoor and outdoor and the Industry Control, be specially adapted to use under the conditions such as humid environment, sunlight direct projection, greasy dirt be serious.Its structure design characteristic comprises the following aspects:

1, adopts the reinforced crossing skeleton of bittern-free flame-proof material, the surface is coated with the coat of metal, the center is provided with the aramid fiber bundle, aramid fiber is a kind of high-modulus (190GPa), the nonmetallic materials of extremely low linear expansion coefficient when guaranteeing that each line is to relative position, can also effectively improve the tensile property of crossing skeleton, avoid the elongation of data cable in laid processes, flexibility is splendid.

2, adopt the yarn dry type water blocking layer structure that expands of splashing that blocks water, self in light weight, the water blocking-up steam that expands of splashing is rapidly met in the space that interstitial wire is right, plays good buffer action, also avoids the reduction of wet type factice for filling to electric property simultaneously.

3, adopt the aluminium-plastic tape screen, aluminium forms four separate closing zones towards interior coating crossing skeleton, and each distinct area has the bonding line, makes respectively to organize line to the operational environment basically identical, improves the effect of its shielding greatly.

4, it is wrapped that thermal-protective coating adopts polyester belt, and heat-blocking action is good, effectively stops outside heat to be invaded, and prevents that effectively internal temperature rise from causing decay to increase.

5, aramid fiber layer 8 is set, can effectively improves the tensile property of cable, avoiding built on stilts the laying of data cable is because of bearing from weight creep elongation to take place.

Construction of cable element is according to requirement on environmental protection, selects halogens such as not chloride, bromine for use, the insulation and the sheath material of heavy metal such as not leaded, chromium, mercury.Cable can not discharge gas and the dense smoke that the human body respiration organ is had intense stimulus when flame condition.Meet Ministry of Public Security's standard smoke density by minimum light transmittance 〉=80%, sheath adopts low smoke and zero halogen cross-linked polyolefin material, and excellent hydroscopicity, environmental resistance are arranged.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Among the figure: conductor 1, insulating barrier 2, reinforced crossing skeleton 3, block water fill 4, bonding line 5, aluminium-plastic tape screen 6, thermal-protective coating 7, aramid fiber layer 8, oversheath 9.

Embodiment

Conductor 1 adopts the real core copper cash or the stranded copper wire stranded conductor of GB/T3956 regulation, and conductive surface is bright and clean, no burr, cut.Insulating barrier 2 adopts high pure cross-linking polyethylene materials, is extruded in conductor 1 outer surface, guarantees electrical insulation properties, the tensile strength of reinforced insulation layer and the anti-extrusion performance of cable.Two have the conductor 1 of insulating barrier 2 right through the group line that twisting constitutes.Enhancement mode crossing skeleton 3 adopts the fire-retardant polyolefine material to extrude and forms, and places the aramid fiber bundle at the center when extruding, and becomes an integral body after the cooling, skeleton plating metal on surface coating.Block water and fill the polyester yarn fiber (the bloated yarn of splashing promptly blocks water) that water-proofing powder is mixed in 4 employings.Bonding line 5 adopts the stranded wire of band shielding, makes things convenient for ground protection and is difficult for broken string.

In four grooves of reinforced crossing skeleton 3, be provided with respectively the group line to, block water fill 4 and bonding line 5 after; wrapped aluminium-plastic tape screen 6 on reinforced crossing skeleton 3; wrapped polyester belt thermal-protective coating 7 on aluminium-plastic tape screen 6; aramid fiber layer 8 is set on thermal-protective coating 7, extrudes low smoke and zero halogen cross-linked polyolefin material oversheath 9 at aramid fiber layer 8 outer surface.

Claims

1; a kind of indoor; outer high-performance data cable; it is characterized in that being provided with two has the conductor (1) of insulating barrier (2) right through the group line that twisting constitutes; reinforced crossing skeleton (3); filling (4) blocks water; bonding line (5); aluminium-plastic tape screen (6); polyester belt thermal-protective coating (7) and oversheath (9); it is right that the group line is set respectively in four grooves of reinforced crossing skeleton (3); filling (4) and bonding line (5) block water; aluminium-plastic tape screen (6) is wrapped on reinforced crossing skeleton (3), goes up wrapped polyester belt thermal-protective coating (7) and oversheath (9) is set at aluminium-plastic tape screen (6).

2, indoor and outdoor according to claim 1 high-performance data cable is characterized in that being provided with aramid fiber layer (8) between described thermal-protective coating (7) and the oversheath (9).

3, indoor and outdoor according to claim 1 high-performance data cable is characterized in that the cross that described reinforced crossing skeleton extrudes for the halogen-free flame-retardant polyolefine material, and the cross center is provided with the aramid fiber bundle, and the surface is coated with the coat of metal.

4, indoor and outdoor according to claim 1 high-performance data cable is characterized in that the described filling (4) that blocks water is for mixing the polyester yarn fiber of water-proofing powder.