CN201218862Y - Indoor optical cable - Google Patents
Indoor optical cable Download PDFInfo
- Publication number
- CN201218862Y CN201218862Y CNU2008200955652U CN200820095565U CN201218862Y CN 201218862 Y CN201218862 Y CN 201218862Y CN U2008200955652 U CNU2008200955652 U CN U2008200955652U CN 200820095565 U CN200820095565 U CN 200820095565U CN 201218862 Y CN201218862 Y CN 201218862Y
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- cable
- optical cable
- optical fiber
- optical
- residence
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Abstract
The utility model discloses a house entrance optical cable, which is suitable for indoor and outdoor wiring. The technical scheme is a house entrance optical cable comprising an outer protection sleeve and a cable core. The outer protection sleeve is coated on external of the cable core, the cable core having longitudinally extending optical fiber shearing rope in the outer protection sleeve. The cable core is indoor wiring optical cable, comprising an inner protection sleeve produced by low smoke halogen-free fire-proof sleeve and optical fiber therein, and optical fiber is slight bending resistant optical fiber. Due to using the indoor wiring optical cable as cable core, consequently, the indoor wiring optical cable is disposed in outdoor tubular optical cable construction as cable core, one-fiber-in-house for indoor and outdoor wiring is implemented, fusion process and use of plug kit is canceled, and existed fault point is eliminated. The optical cable is easy to be opened, and a house entrance optical cable is directly used for house entrance, thus construction time is shortened, and fee is saved.
Description
Technical field
The utility model relates to optical cable manufacturing technology field, and particularly a kind of house wiring that both had been suitable for is suitable for the optical cable of outdoor application again.
Background technology
In the comprehensive optical fiber wiring of sub-district and building, the outdoor optical cable (as GYTA/GYTS/GYXTW etc.) that originally all adopts 4～6 cores is as the light signal leading in cable that inserts section, after outside the building carrying out the welding of an optical fiber, light signal is incorporated into indoor by the special optical cable of registering one's residence; Perhaps directly outdoor optical cable is introduced mode lead-in light signals such as machine room, commercial building.All there is certain deficiency in these two kinds of ways: as the fused fiber splice construction that must have in access procedure in preceding a kind of way, for optical cable is linked into indoor bringing inconvenience, be that the optical cable access causes fault to stay hidden danger when having increased construction cost.In a kind of way in back, because mostly outdoor optical cable is ointment filled type optical cable, use tygon (PE) sheath material, had ointment in the optical cable of vertical wirings because the ointment that action of gravity causes sinks to causing the hidden danger of optical fiber increase external carbuncle in the optical cable to the bottom; Simultaneously the polythene PE sheath is inflammable and release toxic gas, the hidden danger of harm personal safety in fire.Outdoor optical cable is not suitable for laying under the space requirement rigorous environment of deploying troops on garrison duty in addition.
Summary of the invention
In order to overcome the above-mentioned deficiency of optical fiber of the prior art, the utility model provides a kind of optical cable of registering one's residence that not only had been suitable for outdoor application but also had met the house wiring requirement.
The utility model is that the technical scheme that its technical matters of solution is adopted is:
A kind of optical cable of registering one's residence comprises oversheath and cable core, and described oversheath is wrapped in the cable core periphery, and in described oversheath, cable core also has longitudinally extending optical cable to tear rope outward; Described cable core is a house wiring optical fiber cable, comprises the inner sheath made by low-smoke halogen-free flame-retardant sheath material and the optical fiber of Qi Nei, and described optical fiber is anti-microbend fiber.
The beneficial effects of the utility model are owing to utilized house wiring optical fiber cable to do cable core, to have the following advantages:
House wiring optical fiber cable is placed on as cable core in the structure of yard piping optical cable, realizes that of indoor and outdoor wiring is fine to the family, the use of saving fusion process and connector box, the trouble spot that the place to go is potential.
Cable outer sheath is conveniently opened stripping, directly uses the special-purpose optical cable of registering one's residence when registering one's residence, and shortens the engineering time, saves executive cost.
In addition, compared with prior art, what the utility model was filled around optical fiber is inner sheath rather than the fine ointment that low-smoke halogen-free flame-retardant sheath material is made, when in indoor vertical wirings, the ointment that can cause in action of gravity owing to ointment as cable of the prior art does not sink to causing optical fiber in the optical cable to increase the hidden danger of external carbuncle to the bottom.
Optical fiber adopts DRAKA (De Lake)-anti-microbend fiber of BendBrightG.657A/B class, the bending radius of this optical fiber reaches 15mm and 7.5mm, and after in the inlet chamber, utilization is torn rope oversheath is torn, only stay cable core to carry out house wiring, can be suitable for indoor little space wiring.
Description of drawings
Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.
Fig. 1 is the sectional view of the utility model embodiment one.
Fig. 2 is cable core cross-section figure among the utility model embodiment one.
Among the figure: 1, cable core, 11, strengthening core, 12, optical fiber, 13, inner sheath, 2, optical cable tear rope, 3, the moisture barrier that blocks water, 4, moistureproof aluminium strip armor, 5, pe sheath.
Specific embodiment
Embodiment one, as shown in Figure 1, in the present embodiment, be followed successively by from outside to inside: pe sheath 5, moistureproof aluminium strip armor 4, moisture barrier 3 and by " 8 " word rubber-insulated wire cable core 1 that optical cable does of registering one's residence blocks water, moisture barrier 3 inboards block water in cable core 1 outside, have two longitudinally extending optical cables to tear rope 2, its diameter is 0.6mm, and material is a nylon.
Cable core in the present embodiment is " 8 " word rubber-insulated wire optical cable of registering one's residence, as shown in Figure 2: it is made the sheath 13 of the optical cable of registering one's residence by LSZH (Low Smoke Zero Halogen low-smoke halogen-free flame-retardant sheath material), this LSZH/LSOH product has a variety of, can both buy from the market now, meet environmental protection RoHS standard-required.Use the polyamide fire proofing to do inner sheath in the present embodiment, can optical fiber 12 and strengthening core 11 is one-body molded, utilize extrusion die once to be squeezed into " 8 " font, therefore be called as " 8 " word rubber-insulated wire optical cable of registering one's residence, two optical fiber 12 are arranged in the cable core 1, present embodiment adopts the optical fiber G.657A/B that meets the ITU-T standard that is purchased, this optical fiber 12 reaches the anti-microbend fiber of DRAKA-BendBrightG.657A/B class of 15mm and 7.5mm for bending radius, have two strengthening cores 11 to extend longitudinally in the sheath in the LSZH sheath, finer wire that this strengthening core 11 is 0.6mm or aramid fiber strengthen optical cable strengthening core (KFRP).KFRP not only have superelevation pulling strengrth (〉=1700MPa), and shock-resistant, anti-fracture is even still can keep the pulling strengrth of 1300MPa under situation about fractureing.
Following table is the cable configuration parameter list of registering one's residence in the present embodiment:
The optical cable of present embodiment has the following advantages:
1, owing to selected yard piping optical cable aluminium strip armouring polythene PE sheath commonly used and the vertical pack arrangement of waterstop for use, therefore satisfies the protection against the tide that blocks water of duct optical cable, the requirement of anti-ultraviolet ageing, satisfied the requirement of field pipeline wiring.
2, owing to used two nylon to tear rope, tear under rope acts on simultaneously at two nylon, aluminium strip armouring tygon (PE) sheath and waterstop can conveniently be opened stripping into two, make oversheath not need can carry out by specific purpose tool the stripping of opening of longer distance, convenient " 8 " word rubber-insulated wire optical cable of registering one's residence is removed oversheath when registering one's residence.Exempted in the direct inlet chamber of outdoor polythene PE sheath and the potential safety hazard that causes.Meet the requirement of indoor optical fiber wiring, such as softness, what be fit to little space, small curvature radius indoorly lays requirement; Do not produce toxic gas when safety, fire-retardant, fire, the smog transparency reaches the requirement more than 50%; Meet and vertically lay requirement.
3, house wiring optical fiber cable is placed on as cable core in the structure of yard piping optical cable, realizes that of indoor and outdoor wiring is fine to the family, and the use of saving fusion process and connector box reduces potential trouble spot.
4, cable outer sheath is conveniently opened stripping, directly uses the special-purpose optical cable of registering one's residence when registering one's residence, and shortens the engineering time, saves executive cost.
5, optical fiber adopts the anti-microbend fiber of DRAKA-BendBrightG.657A/B class that meets ITU-T G657A technical requirement, has guaranteed the harsh requirement in the space of house wiring, can realize the wiring of 90 degree bent angles, and the cabling requirement of minimum 7.5mm radius.
6, " 8 " word rubber-insulated wire optical cable of registering one's residence has good lateral pressure resistant and flexibility as the house wiring covered wire cable.
7, the diameter of optical cable is less because " 8 " word rubber-insulated wire is registered one's residence, and satisfies the requirement that Metropolitan Area Network (MAN) pipeline microtubule lays and air-sweeping type is constructed.
Embodiment two: use embodiment one routine oversheath, the fiber count in the cable core of optical cable above promptly of registering one's residence is become one, other material is constant.Can satisfy the requirement of most building indoor communications.
Embodiment three: use embodiment one routine oversheath, just its cable size is done greatly, in the moisture barrier that blocks water, use many (more than two) " 8 " word rubber-insulated wires optical cable of registering one's residence to do cable core, can increase the optical cable capacity greatly.
Embodiment four: use as embodiment one routine " 8 " the rubber-insulated wire optical cable of registering one's residence and do cable core, oversheath is followed successively by from inside to outside: the moisture barrier 3 that blocks water, aluminium-plastic tape 4 and low smoke and zero halogen sheath 5.The product of present embodiment is suitable for being laid in the optical cable in the pipeline.In addition, because what present embodiment was filled around optical fiber is inner sheath rather than the fine ointment that a kind of low-smoke halogen-free flame-retardant sheath material (polyolefin fire proofing) is made, when in indoor vertical wirings, the ointment that can cause in action of gravity owing to ointment as cable of the prior art does not sink to causing optical fiber in the optical cable to increase the hidden danger of external carbuncle to the bottom.
Claims (5)
1. the optical cable of registering one's residence comprises oversheath and cable core (1), and described oversheath is wrapped in cable core (1) periphery, and in described oversheath, cable core (1) is outer to also have longitudinally extending optical cable to tear rope (2); It is characterized in that: described cable core (1) is a house wiring optical fiber cable, comprises inner sheath (13) and the optical fiber (12) in it made by low-smoke halogen-free flame-retardant sheath material, and described optical fiber (12) is anti-microbend fiber.
2. the optical cable of registering one's residence as claimed in claim 1 is characterized in that: the optical fiber in the described house wiring optical fiber cable (12) number is the 1-4 root.
3. the optical cable of registering one's residence as claimed in claim 2, it is characterized in that: in described house wiring optical fiber cable, also include longitudinally extending strengthening core (11), described strengthening core (11) and described optical fiber (12) are one-body molded with described inner sheath (13) together, and the cross section is " 8 " font.
4. as the described arbitrary optical cable of registering one's residence of claim 1 to 3, it is characterized in that: described oversheath is followed successively by the moisture barrier that blocks water (3) from inside to outside, moistureproof aluminium strip armor (4) and pe sheath (5).
5. as the described arbitrary optical cable of registering one's residence of claim 1 to 3, it is characterized in that: described oversheath is followed successively by the moisture barrier that blocks water (3) from inside to outside, aluminium-plastic tape (4) and low smoke and zero halogen sheath (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200955652U CN201218862Y (en) | 2008-07-16 | 2008-07-16 | Indoor optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200955652U CN201218862Y (en) | 2008-07-16 | 2008-07-16 | Indoor optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201218862Y true CN201218862Y (en) | 2009-04-08 |
Family
ID=40541697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200955652U Expired - Lifetime CN201218862Y (en) | 2008-07-16 | 2008-07-16 | Indoor optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201218862Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101819305A (en) * | 2010-04-28 | 2010-09-01 | 吴江市胜信光电科技有限公司 | Optical cable leading in house from outdoors |
| CN103383486A (en) * | 2013-08-07 | 2013-11-06 | 江苏中天科技股份有限公司 | Armored pipeline butterfly optical cable and production method thereof |
-
2008
- 2008-07-16 CN CNU2008200955652U patent/CN201218862Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101819305A (en) * | 2010-04-28 | 2010-09-01 | 吴江市胜信光电科技有限公司 | Optical cable leading in house from outdoors |
| CN103383486A (en) * | 2013-08-07 | 2013-11-06 | 江苏中天科技股份有限公司 | Armored pipeline butterfly optical cable and production method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090408 |
|
| CX01 | Expiry of patent term |