CN215118412U - Fireproof and waterproof branch cable - Google Patents

Abstract

The utility model relates to a fire prevention waterproof type branch cable, it includes main cable and branch cable the conductor I of main cable and II junctions of conductor of branch cable are equipped with copper C clamp outside around the double-deck mica tape of package wrap the self-adhesion insulating tape is wrapped to double-deck mica tape outside the self-adhesion insulating tape outside is equipped with the mineral filling layer outside is equipped with the fine fibrous zone of alkali-free glass the fine fibrous zone outside of alkali-free glass is equipped with the waterproofing area main cable, waterproofing area, the branch cable outside is equipped with the connector of moulding plastics. The utility model discloses have safe and reliable, fire prevention, green, waterproof fire-retardant, low cigarette, no halogen, low toxicity and anti mechanical load characteristic, have good electrical transmission performance.

Description

Fireproof and waterproof branch cable

Technical Field

The utility model relates to a cable, concretely relates to branch cable.

Background

Branch cables are a new generation of medium and low voltage power supply line systems successfully developed in the middle and late 90 s in a few industrially advanced countries. The novel power supply device has the advantages of safe and reliable power supply, low use cost, simple installation, low environmental requirement, no maintenance and the like, thereby being widely popularized and applied. The method can be widely applied to power distribution systems of high-rise residences, high-rise office buildings, tunnels, hotels, hospitals, markets and the like, and can also be applied to lighting systems (roads, bridges, tunnels and airport runways) with branch line requirements on trunk lines.

Like common cables, branch cables are generally installed in electrical shafts, high-rise buildings or cable trenches, and fire protection requirements are often required for laying places. Gaps are also easily formed between the branch joint and the main cable and between the branch cables during the processing of the branch cables and during the subsequent installation and use, so that the penetration of flame or moisture is caused. Such as: the connector connecting piece is dislocated due to the action of crimping force in the pressing forming process, poor adhesion force is caused by the fact that insulating materials for injection molding are different from outer layer sheath materials of the main cable and the branch cable, and the connector is loosened due to the fact that the main cable and the branch cable are pulled in the installation process.

Main cables and branch cables of existing branch cable products possibly have a fireproof function, and branch joints are not subjected to any fireproof and moistureproof treatment, so that potential safety hazards exist.

Disclosure of Invention

The purpose of the invention is as follows: the utility model aims at overcoming the not enough among the prior art, provide one kind and have safe and reliable, fire prevention, green, waterproof fire-retardant, low cigarette, no halogen, low toxicity and anti mechanical load characteristic, have the waterproof type branch cable of fire prevention of good electrical transmission performance.

The technical scheme is as follows: in order to solve the technical problem, the fireproof and waterproof branch cable comprises a main cable and a branch cable, wherein a copper C-shaped clamp is arranged at the joint of a conductor I of the main cable and a conductor II of the branch cable, a double-layer mica tape is wrapped outside the copper C-shaped clamp, a self-adhesive insulating tape is wrapped outside the double-layer mica tape, a mineral filling layer is arranged outside the self-adhesive insulating tape, an alkali-free glass fiber tape is arranged outside the mineral filling layer, a water blocking tape is arranged outside the alkali-free glass fiber tape, an injection molding connector is arranged outside the main cable, the water blocking tape and the branch cable, the main cable comprises a conductor I, a fireproof mica tape is arranged outside the conductor I, a ceramic silicon rubber insulating layer is arranged outside the fireproof mica tape, an oxygen-isolating inner sheath is arranged outside the ceramic silicon rubber insulating layer, an aluminum alloy interlocking armor layer is arranged outside the oxygen-isolating inner jacket, and a halogen-free low-smoke flame-retardant polyolefin jacket is arranged outside the aluminum alloy interlocking armor layer.

Further, the structure of the branch cable is the same as that of the main cable.

Furthermore, the conductor I and the conductor II both adopt annealed soft copper conductors.

Furthermore, the cross section area of the conductor I and the conductor II is 2.5-240mm²。

Further, the injection molding connector is a halogen-free low-smoke flame-retardant polyolefin connector.

Has the advantages that: compared with the prior art, the utility model, it is showing the advantage and is: the utility model has the advantages of reasonable overall structure, adopt copper C clamp crimping, the reinforcing stretching resistance, adopt double-deck mica tape, the coefficient of expansion is little, dielectric strength is big, the resistivity is high and dielectric constant is even, adopt the mineral filling layer, have the fire prevention, it is fire-resistant, high temperature resistant, separate the temperature, advantages such as thermal-insulated, and better fire-retardant heat absorption performance, adopt alkali-free glass fiber tape and water-blocking tape, alkali-free glass fiber tape insulating properties is good, the pulling force is very strong, can not wrinkle the rupture, it is resistant to vulcanize, smokeless halogen-free nontoxic, the pure oxygen is noninflammable, the water-blocking tape can absorb steam, reach water-blocking performance, two kinds of belts play the tight effect of cable core simultaneously, adopt around package fire prevention mica tape and crowded ceramic silicon rubber composite insulation layer, have characteristics such as splendid fire prevention, fire-retardant, low cigarette, nontoxic, and can play the dampproofing, adopt the oxygen-insulated inner sheath, not only have good mechanical physical properties, The cable has the advantages of being oil-resistant, electric, flame-retardant and low-smoke, and having the characteristics of no halogen, low smoke emission and the like, the aluminum alloy interlocking armor layer is adopted, the cable inside the armor layer has a good protection effect, is easy to bend, resistant to compression and impact, convenient to install, capable of being directly buried and free of pipeline laying, the flame-retardant fire-resistant level of the cable is effectively improved, and the aluminum alloy interlocking armor layer has a considerable water-blocking performance, a halogen-free low-smoke flame-retardant polyolefin sheath and a halogen-free low-smoke flame-retardant polyolefin connector are adopted, the cable has excellent rat and ant prevention, flame retardance, zero halogen, low smoke and other performances, moisture is generated during high-temperature combustion, and the effects of cooling and fire insulation are achieved.

Drawings

Fig. 1 is a schematic view of the internal structure of the present invention;

fig. 2 is a schematic cross-sectional structure diagram of the main cable of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

As shown in figures 1 and 2, a fireproof and waterproof branch cable, it includes leader cable 1 and branch cable 2 the conductor I3 of leader cable 1 and the conductor II 4 junction of branch cable 2 are equipped with copper C clamp 5 outside is around package pairThe double-layer mica tape comprises a mica tape layer 6, a self-adhesive insulating tape 7 is bound and arranged outside the double-layer mica tape 6, a mineral filling layer 8 is arranged outside the self-adhesive insulating tape 7, an alkali-free glass fiber tape 9 is arranged outside the mineral filling layer 8, a water blocking tape 10 is arranged outside the alkali-free glass fiber tape 9, an injection molding connector 11 is arranged outside a main cable 1, the water blocking tape 10 and a branch cable 2, the injection molding connector 11 is a halogen-free low-smoke flame-retardant polyolefin connector, the main cable 1 comprises a conductor I3, a fireproof mica tape 12 is arranged outside the conductor I3, a ceramic silicon rubber insulating layer 13 is arranged outside the fireproof mica tape 12, an oxygen-insulating inner jacket 14 is arranged outside the ceramic silicon rubber insulating layer 13, an aluminum alloy interlocking armor layer 15 is arranged outside the oxygen-insulating inner jacket 14, a halogen-free low-smoke flame-retardant polyolefin jacket 16 is arranged outside the aluminum alloy interlocking armor layer 15, the structure of the branch cable 2 is the same as that of the main cable 1, the conductor I3 and the conductor II 4 both adopt annealed soft copper conductors, and the sectional areas of the conductors are 2.5-240mm². The utility model has the advantages of reasonable overall structure, adopt copper C clamp crimping, the reinforcing stretching resistance, adopt double-deck mica tape, the coefficient of expansion is little, dielectric strength is big, the resistivity is high and dielectric constant is even, adopt the mineral filling layer, have the fire prevention, it is fire-resistant, high temperature resistant, separate the temperature, advantages such as thermal-insulated, and better fire-retardant heat absorption performance, adopt alkali-free glass fiber tape and water-blocking tape, alkali-free glass fiber tape insulating properties is good, the pulling force is very strong, can not wrinkle the rupture, it is resistant to vulcanize, smokeless halogen-free nontoxic, the pure oxygen is noninflammable, the water-blocking tape can absorb steam, reach water-blocking performance, two kinds of belts play the tight effect of cable core simultaneously, adopt around package fire prevention mica tape and crowded ceramic silicon rubber composite insulation layer, have characteristics such as splendid fire prevention, fire-retardant, low cigarette, nontoxic, and can play the dampproofing, adopt the oxygen-insulated inner sheath, not only have good mechanical physical properties, The cable has the characteristics of oil resistance, electrical property, flame retardant property, low smoke generation and the like, does not contain halogen, adopts the aluminum alloy interlocking armor layer, has better protection effect on the cable inside, is easy to bend, resists compression and impact, is convenient to install, can be directly buried without laying a pipeline, effectively improves the flame retardant and fire resistant level of the cable, and has the advantages of high flame retardant property, low smoke generation and the likeThe halogen-free low-smoke flame-retardant polyolefin sheath and the halogen-free low-smoke flame-retardant polyolefin connector have the advantages of excellent rat and ant prevention, flame retardance, no halogen, low smoke and the like, generate moisture during high-temperature combustion, and play roles in cooling and fire insulation.

The utility model provides a thinking and method, the method and the way of specifically realizing this technical scheme are many, above only the utility model discloses a preferred embodiment should point out, to the ordinary technical personnel in this technical field, not deviating from the utility model discloses under the prerequisite of principle, can also make a plurality of improvements and moist decorations, these improvements should also be regarded as the utility model discloses a protection range, each component that does not make clear and definite in this embodiment all can be realized with prior art.

Claims (5)

1. The utility model provides a fire prevention waterproof type branch cable which characterized in that: the cable comprises a main cable (1) and a branch cable (2), wherein a copper C-shaped clamp (5) is arranged at the joint of a conductor I (3) of the main cable (1) and a conductor II (4) of the branch cable (2), a double-layer mica tape (6) is wrapped outside the copper C-shaped clamp (5), a self-adhesive insulating tape (7) is wrapped outside the double-layer mica tape (6), a mineral filling layer (8) is arranged outside the self-adhesive insulating tape (7), an alkali-free glass fiber tape (9) is arranged outside the mineral filling layer (8), a water blocking tape (10) is arranged outside the alkali-free glass fiber tape (9), an injection molding connector (11) is arranged outside the main cable (1), the water blocking tape (10) and the branch cable (2), the main cable (1) comprises a conductor I (3), and a fireproof tape (12) is arranged outside the conductor I (3), fireproof mica tape (12) outside is equipped with ceramic silicon rubber insulating layer (13) outside is equipped with and separates oxygen inner sheath (14) separate oxygen inner sheath (14) outside is equipped with aluminum alloy interlocking armor (15) outside is equipped with zero halogen low fire-retardant polyolefin sheath (16).

2. The fire and water resistant branch cable according to claim 1, wherein: the structure of the branch cable (2) is the same as that of the main cable (1).

3. The fire and water resistant branch cable according to claim 1, wherein: and the conductor I (3) and the conductor II (4) both adopt annealed soft copper conductors.

4. The fire and water resistant branch cable according to claim 1, wherein: the cross sections of the conductor I (3) and the conductor II (4) are 2.5-240mm²。

5. The fire and water resistant branch cable according to claim 1, wherein: the injection molding connector (11) is a halogen-free low-smoke flame-retardant polyolefin connector.

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