CN208834761U

CN208834761U - A kind of fireproof cable

Info

Publication number: CN208834761U
Application number: CN201821031359.5U
Authority: CN
Inventors: 梁明春
Original assignee: GUANGDONG TIANHONG CABLE CO Ltd
Current assignee: GUANGDONG TIANHONG CABLE CO Ltd
Priority date: 2018-06-29
Filing date: 2018-06-29
Publication date: 2019-05-07
Anticipated expiration: 2028-06-29

Abstract

The utility model discloses a kind of fireproof cables, belong to field of cable technology.It includes at least four leader cable cores, there is a wrapping layer being wound in by multiple layer refractory mica tape on the leader cable core, an inorganic mineral layer is filled with outside the wrapping layer between each leader cable core, it successively include a mica layer and an external sheath layer outside the inorganic mineral layer, the external sheath layer is copper sheath or aluminium sheath.It is insulated using mica layer with magnesia inorganic mineral layer, fusing point height and copper sheath or aluminium sheath, which have, does not allow oxidizable, burn into performance to stablize with dystectic performance, copper sheath or aluminium sheath and magnesia inorganic mineral layer can play good flame retardant effect when a fire, guarantee the normal use of cable when fire.

Description

A kind of fireproof cable

Technical field

The utility model relates to arrive field of cable technology, more particularly, to a kind of fireproof cable (building, fire-fighting equipment and electricity The cable such as ladder).

Background technique

Currently, China is the annual maximum country of new building amount in the world, the skyscraper in flourishing city is more next more, builds The fire protecting performance built increasingly is concerned, and building cable fire-proof is one of the key link of building fire protection performance boost, to protect More conduction times are provided for floor when card fire occurs, guarantee effective development of rescue work, building fireproof cable Design with regard to most important, however the design of existing part building fire protection cable fire-proof structure is single on the market at present, quality ginseng Difference is uneven, and fire protecting performance is insufficient.

Utility model content

For the deficiency for making up fireproof cable performance on existing market, the utility model provides a kind of with preferable flexibility And bending property, it being capable of multistage fire-retardant fireproof cable.

Technical solutions of the utility model are as follows: a kind of fireproof cable comprising at least four leader cable cores, the leader cable core There is a wrapping layer being wound in by multiple layer refractory mica tape outside, it is inorganic filled with one between each leader cable core outside the wrapping layer Mineral layer, successively includes a mica layer and an external sheath layer outside the inorganic mineral layer, the external sheath layer be copper sheath or Person's aluminium sheath.

It is spaced from each other a preset distance between the every leader cable core, is symmetrically arranged.

The every leader cable in-core is equipped with seven real copper conductors.

The every leader cable core has seven real copper conductors to be twisted.

The inorganic mineral layer is magnesium oxide layer, and is powder filled layer, and powder fills the consolidation that ensure that filling Property, guarantee that four internal main push-towing rope cores are evenly arranged and the flexible and bendability of cable.

The utility model beneficial effect is: the inorganic mineral layer and mica layer of magnesia are equipped with outside leader cable core, Mica layer and magnesia inorganic mineral layer all have excellent insulating properties and fire protecting performance, play double shield to fire prevention, External sheath layer is copper sheath or aluminium sheath, utilizes its fusing point height, it is not easy to which the characteristic for being oxidized and corroding greatly improves The fire protecting performance of the level-one of cable, guaranteeing cable, the service life is longer.

Detailed description of the invention

Fig. 1 is the utility model structure diagram.

Fig. 2 is leader cable cored structure schematic diagram.

In figure, 1- external sheath layer, 2- mica layer, 3- inorganic mineral layer, 4- wrapping layer, 5- leader cable core, 501- reality copper led Body.

Specific embodiment

The utility model is described further with reference to the accompanying drawings and embodiments.

As shown, a kind of fireproof cable comprising at least four leader cable cores 5, on the every leader cable core 5 There is a wrapping layer 4 being wound in by multiple layer refractory mica tape, wherein being filled with one outside the wrapping layer 4 between each leader cable core 5 Inorganic mineral layer 3, the inorganic mineral layer 3 are magnesia inorganic mineral layer and are powder filled layer, outside inorganic mineral layer 3 It successively include a mica layer 2 and an external sheath layer 1, the external sheath layer 1 is copper sheath or aluminium sheath.Mica layer 2 and oxidation Magnesium inorganic mineral layer 3 all has excellent insulating properties and fire protecting performance, plays double shield, and external sheath layer 1 is copper sheath Or aluminium sheath, fusing point are high, it is not easy to be oxidized and corrodes and greatly improve the fire protecting performance of the level-one of cable, guarantee fiery The service life of the energization of cable longer time and cable when calamity.

It is spaced from each other a preset distance between the every leader cable core 5, is symmetrically arranged.

Seven real copper conductors 501 are equipped in the every leader cable core 5.

The every leader cable core 5 has seven real copper conductors 501 to be twisted.

The inorganic mineral layer 3 is magnesium oxide layer, and is powder filled layer, and powder fills the consolidation that ensure that filling Property, guarantee that four internal main push-towing rope cores 5 are evenly arranged and guarantee the flexible and bendability of whole cable.

Above description is only a kind of preferable embodiment of the utility model, but those skilled in the art should manage Solution, is merely illustrative, the protection scope of the utility model is as defined in appended claims here.Therefore this is practical Change on an equal basis made by novel claim, still falls within the range that the utility model is covered.

Claims

1. a kind of fireproof cable comprising at least four leader cable cores, it is characterised in that: have outside the leader cable core one by more The wrapping layer that is wound in of layer fire-resistant isinglass belt is filled with an inorganic mineral layer, institute between each leader cable core outside the wrapping layer Stating inorganic mineral layer is magnesium oxide layer, successively includes a mica layer and an external sheath layer, the outer shield outside the magnesium oxide layer Jacket layer is copper sheath or aluminium sheath.

2. a kind of fireproof cable according to claim 1, which is characterized in that it is pre- to be spaced from each other one between every leader cable core Set a distance is symmetrically arranged.

3. a kind of fireproof cable according to claim 2, which is characterized in that every leader cable in-core is equipped with seven real copper and leads Body.

4. a kind of fireproof cable according to claim 3, which is characterized in that every leader cable core is by seven real copper conductors It is twisted.

5. a kind of fireproof cable according to claim 1, which is characterized in that the magnesium oxide layer is powder filled layer.