CN209729553U - A kind of fire-fighting route flexible mineral insulation fireproof cable - Google Patents

Abstract

The utility model discloses a kind of fire-fighting route flexible mineral insulation fireproof cables of field of cable technology; including copper conductor; the outer wall of copper conductor is socketed with insulating layer, and the outer wall of insulating layer is socketed with shielded layer, and the outer wall of shielded layer is socketed with flame-retardant layer; the outer wall of flame-retardant layer is socketed with mineral insulation; the outer wall of mineral insulation is socketed with outer jointing jacket, and present apparatus structure is simple, and anti-electromagnetic interference capability is strong; easy bending can effectively extend the normal power-up time of relative alarm and safety instruction equipment.

Description

A kind of fire-fighting route flexible mineral insulation fireproof cable

Technical field

The utility model discloses a kind of fire-fighting route flexible mineral insulation fireproof cable, specially cable technology is led Domain.

Background technique

In recent years with the continuous improvement of people's material and cultural life, gradually attention of the country to fireproofing, people Awareness of safety step up.In order to improve the security level of communication line, the generation and damage of electrical fire accident are reduced It loses, Minstry of Housing and Urban-Rural Development of People Republic of China (MOHURD), the Ministry of Public Security and some local governments have promulgated some electrical design specifications in succession, and clear stipulaties are one A little important power circuits or place preferably use fireproof cable, it is being summarized from scene of fire experience have shown that, in the case of fire, if The normal power-up time of relative alarm and safety instruction equipment can be extended, it will greatly increase escape probability, strive for more Rescue time, simultaneously because the otherness of regional climate, the complexity of vehicle operation, the otherness between compartment, which is needed It can be realized the connection of power supply circuit for train, the connection, the connection of network signal that control signal etc., it is also necessary to which there is anti-electromagnetism Interference performance is strong, easy bending.

Utility model content

It is above-mentioned to solve the purpose of this utility model is to provide a kind of fire-fighting route flexible mineral insulation fireproof cable The problem of being proposed in background technique.

To achieve the above object, the utility model provides the following technical solutions: a kind of fire-fighting route flexible mineral insulation Fireproof cable, including copper conductor, the outer wall of the copper conductor are socketed with insulating layer, and the outer wall of the insulating layer is socketed with shielding Layer, the outer wall of the shielded layer are socketed with flame-retardant layer, and the outer wall of the flame-retardant layer is socketed with mineral insulation, the mineral insulation The outer wall of layer is socketed with outer jointing jacket.

Preferably, the antetheca of the outer jointing jacket is provided with flexible hole.

Preferably, the cross section of the flexible hole is circle.

Preferably, the insulating layer and outer jointing jacket are crosslinked polyethylene structure.

Preferably, the shielded layer is soft copper silk woven shield.

Preferably, the flame-retardant layer is one kind of magnesia or magnesium hydroxide flame retardant layer.

Preferably, the mineral insulation is calcining Mica tape insulating layer.

Compared with prior art, the utility model has the beneficial effects that

1) present apparatus is provided with shielded layer in the outer wall of copper conductor, avoids copper conductor from influencing each other between each other, simultaneously It ensure that the anti-electromagnetic interference capability of cable entirety；

2) present apparatus is provided with the insulating layer and outer jointing jacket of crosslinked polyethylene, and the shock resistance of cable entirety has been effectively ensured With the characteristics such as antidetonation, while it being provided with flexible hole in the antetheca of outer jointing jacket, improves the buckling performance of cable entirety；

3) present apparatus is provided with mineral insulation in the outer wall of flame-retardant layer, and mineral insulation is effectively reduced flame and enters cable Internal speed, flame-retardant layer are effectively reduced high temperature and enter speed inside cable, and present apparatus structure is simple, anti-electromagnetic interference capability By force, easy bending can effectively extend the normal power-up time of relative alarm and safety instruction equipment.

Detailed description of the invention

Fig. 1 is the utility model flexible mineral insulation fireproof cable structural schematic diagram.

In figure: 100 copper conductors, 110 insulating layers, 120 shielded layers, 200 flame-retardant layers, 300 mineral insulations, 400 are protected outside Set, 410 flexible holes.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

The utility model provides a kind of fire-fighting route flexible mineral insulation fireproof cable, and anti-electromagnetic interference capability is strong, easily Bending can effectively extend the normal power-up time of relative alarm and safety instruction equipment, referring to Fig. 1, include copper conductor 100, The outer wall of copper conductor 100 is socketed with insulating layer 110, and the outer wall of insulating layer 110 is socketed with shielded layer 120, and 110 material of insulating layer is Crosslinked polyethylene is extruded in the outer wall of copper conductor 100 by crosslinked polyethylene, for improving the insulating properties of copper conductor 100, shields Layer 120 is soft copper silk, dry for avoiding copper conductor 100 from receiving electromagnetism by the way that soft copper silk to be stranded in the outer wall of insulating layer 110 It disturbs；

Referring to Fig. 1, the outer wall of shielded layer 120 is socketed with flame-retardant layer 200, and the material of flame-retardant layer 200 is magnesia, Enter cable by filling magnesia, flame-retardant layer 200 enters inside cable for reducing external high temperature and flame；

Referring to Fig. 1, the outer wall of flame-retardant layer 200 is socketed with mineral insulation 300, and mineral insulation 300 is calcining Mica tape, by the way that calcining mica tape to be wrapped in the outer wall of flame-retardant layer 200 by wrapped form, calcining mica tape can be born 1000 degrees Celsius of high temperature, is effectively reduced high temperature and flame enters speed inside cable；

Referring to Fig. 1, the outer wall of mineral insulation 300 is socketed with outer jointing jacket 400, and 400 material of outer jointing jacket is Crosslinked polyethylene, for fire-retardant and cable bending, the antetheca of outer jointing jacket 400 is provided with flexible hole 410, is convenient for outer jointing jacket 400 bending, the cross section of flexible hole 410 are round or triangle one kind, improve the anti-pressure ability of outer jointing jacket 400.

Although hereinbefore having been made with reference to some embodiments the utility model is described, this reality is not being departed from In the case where with novel range, various improvement can be carried out to it and can be with equivalent without replacement component therein.Especially It is that, as long as structural conflict is not present, the various features in each embodiment disclosed by the utility model can pass through any side Formula be combined with each other use, and not carrying out the description of exhaustion to the case where these combinations in the present specification is only to be in omission Length and the considerations of economizing on resources.Therefore, the utility model is not limited to specific embodiment disclosed herein, and including falling Enter all technical solutions in the scope of the claims.

Claims (7)

1. a kind of fire-fighting route flexible mineral insulation fireproof cable, it is characterised in that: including copper conductor (100), the copper is led The outer wall of body (100) is socketed with insulating layer (110), and the outer wall of the insulating layer (110) is socketed with shielded layer (120), the screen The outer wall for covering layer (120) is socketed with flame-retardant layer (200), and the outer wall of the flame-retardant layer (200) is socketed with mineral insulation (300), The outer wall of the mineral insulation (300) is socketed with outer jointing jacket (400).

2. a kind of fire-fighting route flexible mineral insulation fireproof cable according to claim 1, it is characterised in that: described outer The antetheca of protective case (400) is provided with flexible hole (410).

3. a kind of fire-fighting route flexible mineral insulation fireproof cable according to claim 2, it is characterised in that: described soft Property hole (410) cross section be round or triangle one kind.

4. a kind of fire-fighting route flexible mineral insulation fireproof cable according to claim 1, it is characterised in that: described exhausted Edge layer (110) and outer jointing jacket (400) are crosslinked polyethylene structure.

5. a kind of fire-fighting route flexible mineral insulation fireproof cable according to claim 1, it is characterised in that: the screen Covering layer (120) is soft copper silk woven shield.

6. a kind of fire-fighting route flexible mineral insulation fireproof cable according to claim 1, it is characterised in that: the resistance Fire one kind that layer (200) are magnesia or magnesium hydroxide flame retardant layer.

7. a kind of fire-fighting route flexible mineral insulation fireproof cable according to claim 1, it is characterised in that: the mine Object insulating layer (300) is calcining Mica tape insulating layer.