CN202067605U - Self-supporting overhead fireproof composite optical cable - Google Patents

Abstract

The utility model relates to a self-supporting overhead fireproof composite optical cable, possessing fireproof, heat resistance and flame retardation performances. The self-supporting overhead fireproof composite optical cable comprises a sheath, an aluminum conducting wire, a cable core filling composite, a reinforcement, an optical fiber, a loose sleeve, a humidity blocking layer and a steel strand. The optical fiber is arranged in the loose sleeve, a loose sleeve filling composite is filled in the loose sleeve, and the loose sleeve and the aluminum conducting wire are packed by a belting around the reinforcement; the outside of the aluminum conducting wire is equipped with an aluminum conducting wire cushion layer, and the outside of the belting is sleeved with the humidity blocking layer, so that an eight-shaped flame retardation outer sheath finished product is formed by the above structure and the steel strand. A filling rope surrounds the reinforcement. The self-supporting overhead fireproof composite optical cable of the utility model is fire-resistant, high temperature resistant and possesses the fireproof performance, still can keep a normal power supplying work state on the condition of having been burned more than 4 hours, and can solve a series of problems that only can be solved by utilizing a plurality of cables under normal conditions.

Description

The built on stilts fire prevention of self-bearing type composite cable

Technical field

The utility model relates to the optical cable technology field, and it is a kind of have fire prevention, built on stilts composite cable of preventing fires of self-bearing type heat-resisting, fire resistance in definite saying.

Background technology

At present, in Communication in China, computerized information industrial field, the optoelectronic composite cable with broadband data transmission and function of supplying power is widely used in the communication equipment remote electric power system.And because China's fire disaster constantly takes place, cause great harm for people's productive life recent years.Electricity consumption and security against fire receive much attention during the acceptance of work, if transmit electricity cable not tool fire prevention or fire resistance in the engineering, will become the major hidden danger of fire in actual use, mainly are because the transmission of electricity cable is in use once produce the high heat of high temperature after the overload.The insulating barrier of common cable can produce naked light in this case, and may cause the naked light rapid spread, causes the generation of fire thus.Secondly be exactly when fire takes place, common cable insulating barrier is met naked light can enlarge the fire damage scope with fire spreading.Therefore some important engineering has explicitly called for and must adopt fire-resistant, flame-retardant cable access; The part engineering causes doing over again owing to the electricity consumption fire-fighting is defective and reprocesses, even the shut-down of whole engineering is rectified;

This shows that each engineering must guarantee security against fire when implementing, is prerequisite to guarantee the safety of the people's lies and property; Therefore no matter be in the remote electric power system of communications industry field, still in unification of three nets in the future or four networks one platform network, use the fire prevention optoelectronic composite cable to have higher certainty; Can improve fail safe, the stability of light engineering cable after this technology is used to a great extent, prolong the useful life of optoelectronic composite cable simultaneously, the people's lives and property safety is protected.

This utility model and layer-twisted type fire prevention optoelectronic composite cable performance are basic identical, have increased the self-bearing type steel strand wire on the structure, generally adopt the loose sleeve layer strand type structure, can guarantee the optical cable characteristic, can satisfy electricity needs again, but also have certain drawback in using.At first loose sleeve pipe has ointment and drops onto contaminated environment on the ground in construction, the optical fiber in the loose sleeve pipe needs could use behind the fusion splice, influences the engineering time, and the more relative cost height of raw material; Secondly cable is wide, flat, can take big relatively space.

Summary of the invention

The purpose of this utility model provides a kind of have fire prevention, the built on stilts composite cable of preventing fires of self-bearing type heat-resisting, fire resistance.It has economic, practical, safe characteristics.Technical scheme is as follows: the built on stilts fire prevention of self-bearing type composite cable comprises sheath, aluminum conductor, cable core filled composite, reinforcement, optical fiber, loose sleeve pipe, moisture-proof layer, steel strand wire, optical fiber is in loose sleeve pipe, fill pine cover filled composite in the pine sleeve pipe, it is characterized in that: loose sleeve pipe, aluminum conductor are wrapped up by band around reinforcement, aluminum conductor has the aluminum conductor bed course outward, band is with moisture-proof layer outward, and this structure becomes 8 fonts to protect the fire retardant jacket finished product outward with steel strand wire.Moisture-proof layer is outward a fire retardant jacket, and fire retardant jacket is divided into two sheaths that connect together, and in the sheath of minor diameter steel strand wire is arranged.Around reinforcement gasket for packing is arranged.Yarn, inner cushion layer and the nonmetal auxiliary stiffener of bundle arranged in the band.

The utility model has the advantages that:

1, fire-resistant, high temperature resistant, the tool fire protecting performance; The operating state that still can keep normal power supply with the naked light burning more than 4 hours;

2, have fire resistance, can stop or delay fire spreading with the naked light combustion;

Have more fail safe when 3, burning, smog light transmittance height during burning, and do not contain halogen element in the smog;

4, the serial problem that generally could solve with many cables can replace with a composite rope at this;

5, can satisfy long Distance Transmission, also sectional uses;

6, the physical characteristic that still keeps optical cable is as anti-collapse, stretching etc.;

7, client's purchase cost is low, and operating expenses is low, and the networking expense is low;

8, have superior bending property and good anti-side pressure performance, easy construction;

9, provide multiple transmission technology simultaneously, strong with adaptability height, the extensibility of equipment, product is widely applicable;

10, provide huge bandwidth to insert, guarantee the remote power feeding demand;

11, save cost, optical fiber as the usefulness of reserving to the family, has been avoided the secondary wiring;

12, solve equipment electrical problem (avoiding repeating to lay supply line) in the networking;

13, according to ports such as customer requirement FC/SC/ST.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is the utility model technological process of production figure.

1 is sheath among the figure, the 2nd, and aluminum conductor bed course, the 3rd, aluminum conductor, the 4th, the cable core filled composite, the 5th, reinforcement bed course, the 6th, reinforcement, the 7th, optical fiber, the 8th, pine cover filled composite, the 9th, loose sleeve pipe, the 10th, presumable gasket for packing, the 11st, band and presumable bundle yarn, inner cushion layer and nonmetal auxiliary stiffener, the 12nd, moisture-proof layer, the 13rd, steel strand wire.

Embodiment

The built on stilts fire prevention of self-bearing type composite cable comprises sheath, aluminum conductor, cable core filled composite, reinforcement, optical fiber, loose sleeve pipe, moisture-proof layer, steel strand wire, optical fiber is in loose sleeve pipe, fill pine cover filled composite in the pine sleeve pipe, pine sleeve pipe 9, aluminum conductor 3 are wrapped up by band 11 around reinforcement 6, aluminum conductor bed course 2 is arranged outside the aluminum conductor 3, the band 11 outer moisture-proof layers 12 that are with are 8 font fire retardant jackets 1 outside the moisture-proof layer 12, and steel strand wire 13 are arranged in the sheath of minor diameter.Around reinforcement 6 gasket for packing 10 can also be arranged, be wrapped up by band 11.In the band 11 yarn, inner cushion layer and the nonmetal auxiliary stiffener of bundle can be arranged.

This product selects for use the layer-twisted type structure to produce:

1, optical fiber pine cover lining

For not being subjected to external action, protection optical fiber outside optical fiber coating, do not squeeze into the process of one deck suitable plastic pine cover and filled composite resilient coating.

2, copper cash adds fireprotection layer and flame retardant insulation sheath

Copper cash carries out the flame-proof material sheath after adding fireprotection layer, our employed main insulating material is a low-smoke halogen-free polyolefin, utilizes extruder to finish the copper line surface sheath.

3, stranding

Stranded with loose sleeve pipe, presumable gasket for packing, copper conductor, reinforcement nature to together, excessive for preventing yarn-binding tension, be adjusted to inertial states, purpose be element is closed as a whole.

4, oversheath

The restrictive coating of optical cable is used for protecting cable core, makes cable core avoid the influence of extraneous mechanism and environmental condition, and we carry out oversheath by flame-proof material after utilizing the aluminum plastic composite belt longitudinal bag.

The comprehensive leading in cable of self-bearing type of briefly preventing fires at first with the protection of optical fiber pine cover, is made reinforcement with steel wire and copper conductor is twisted into cable core again, and steel strand surface jacket insulation material becomes finished product behind the 8 font fire retardant jackets with these two kinds of elements.Performance is identical with photoelectricity mixing cable with Access Network, different is structure, and the comprehensive leading in cable of self-bearing type has increased the self-bearing type steel strand wire, and copper conductor has increased fireprotection layer, sheath is a fire retardant jacket, makes the fire prevention composite rope be easy to built on stilts laying and has more fire savety, stability simultaneously.

Claims (3)

1. self-bearing type is maked somebody a mere figurehead the fire prevention composite cable, it comprises sheath, aluminum conductor, cable core filled composite, reinforcement, optical fiber, loose sleeve pipe, moisture-proof layer, steel strand wire, optical fiber is in loose sleeve pipe, fill pine cover filled composite in the pine sleeve pipe, it is characterized in that: loose sleeve pipe (9), aluminum conductor (3) are wrapped up by band (11) around reinforcement (6), aluminum conductor bed course (2) is arranged outside the aluminum conductor (3), band (11) is outer to be with moisture-proof layer (12), and this structure becomes 8 fonts to protect fire retardant jacket (1) finished product outward with steel strand wire (13).

2. the built on stilts fire prevention of self-bearing type according to claim 1 composite cable is characterized in that: around reinforcement (6) gasket for packing (10) is arranged.

3. the built on stilts fire prevention of self-bearing type according to claim 1 composite cable is characterized in that: yarn, inner cushion layer and the nonmetal auxiliary stiffener of bundle arranged in the band (11).

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