CN211628747U

CN211628747U - Waterproof fireproof cable of high elasticity

Info

Publication number: CN211628747U
Application number: CN202020564966.9U
Authority: CN
Inventors: 肖本国; 何立群; 孙磊; 张驰; 单宽宽; 郭守恒; 王影
Original assignee: Anhui Guodian Cable Co ltd
Current assignee: Anhui Guodian Cable Co ltd
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2020-10-02
Anticipated expiration: 2030-04-16

Abstract

The utility model discloses a waterproof fireproof cable of high elasticity, including sinle silk one and many sinle silk two, constitute the cable core with two equipartitions of many sinle silks in the lateral surface department of sinle silk one, the cladding has glass fiber tape to wind covering, the fire-retardant layer of tensile, polyurethane elastic sleeve and the fire-retardant polyolefin oversheath layer of low smoke and zero halogen in proper order in the outside of cable core, and the axial division of inner wall at polyurethane elastic sleeve has a plurality of recesses, is equipped with the rubber stick in every recess respectively. The utility model discloses all wrap the lead alloy sheath in sinle silk one and two outsides of sinle silk, can be waterproof, fire prevention, protection against rodents ant to and resistance to compression and anti-interference, guarantee the permanent normal operating of cable under complicated environmental condition, open at the inner wall axial of polyurethane elastic sleeve has a plurality of recesses, be equipped with the rubber stick in every recess respectively, increase the antitorque distortion tensile properties of cable, elasticity is big, difficult twist-off.

Description

Waterproof fireproof cable of high elasticity

Technical Field

The utility model relates to the technical field of cables, especially, relate to a waterproof fireproof cable of high elasticity.

Background

The application sites for the cables are relatively complex and these complex sites present challenges to the safe operation of the cables. Water leakage and fire are important factors influencing the safe operation of the cable, and how to ensure the normal operation of the cable under the complex environmental conditions is a technical problem to be solved by cable production enterprises.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the purpose is exactly in order to remedy prior art's defect, provides a waterproof fireproof cable of high elasticity.

The utility model discloses a realize through following technical scheme:

the utility model provides a waterproof fireproof cable of high elasticity, is including sinle silk one and many sinle silk two, sinle silk one including conductor one, the outside of conductor one in proper order the cladding have crosslinked polyethylene insulating layer and almag alloy silk to weave the shielding layer, the back cladding has lead alloy sheath one in the outside with three conductors one bunch of twists, sinle silk two including conductor two, the cladding has tin-plated soft copper wire and dacron silk to weave the insulation shielding layer in the outside of conductor two, the cladding has lead alloy sheath two after two conductor pairs twist, constitutes the cable core with two equipartitions of many sinle silks in sinle silk one lateral surface department, the cladding has glass fiber tape to wind cladding, tensile fire-retardant layer, polyurethane elastic housing and low smoke and zero halogen fire-retardant polyolefin oversheath layer in the outside of cable core in proper order, has a plurality of recesses at the axial division of inner wall of polyurethane elastic housing, is equipped with the rubber stick in every.

And the gaps among the first wire core, the second wire core, the first wire core and the second wire core and between the glass fiber tape winding layer and the cable core are filled with water-blocking aramid yarn filling layers.

The tensile flame-retardant layer is formed by arranging a plurality of tensile flame-retardant strips on the outer side of the glass fiber tape winding layer in parallel, each tensile flame-retardant strip comprises a central flame-retardant strip, and a plurality of outer filling ropes are twisted on the outer side of the central flame-retardant strip.

The utility model has the advantages that: the utility model discloses all wrap up the lead alloy sheath in sinle silk one and sinle silk two outsides, can be waterproof, fire prevention, protection against rodents ant to and resistance to compression and anti-interference, guarantee the permanent normal operating of cable under complicated environmental condition, open axially at the inner wall of polyurethane elastic sleeve has a plurality of recesses, be equipped with the rubber stick in each recess respectively, increase the antitorque distortion tensile properties of cable, elasticity is big, difficult twist-off; the central flame-retardant strip can also play a flame-retardant role when the cable is burnt out, is matched with the outer sheath layer for use, has a good effect, and the arrangement of the outer filling rope helps to increase the tensile property of the cable, so that the cable is suitable for occasions where the cable is frequently dragged.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of a tensile flame retardant strip.

Detailed Description

As shown in figure 1, a high-elasticity waterproof and fireproof cable comprises a first conductor core and a second plurality of conductor cores, wherein the first conductor core comprises a first conductor 1, a cross-linked polyethylene insulating layer 2 and an aluminum magnesium alloy wire braided shielding layer 3 are sequentially coated on the outer side of the first conductor 1, a first lead alloy sheath 4 is coated on the outer side of the first three conductors 1 after the first three conductors are twisted, the second conductor core comprises a second conductor 5, a tinned soft copper wire and polyester wire braided insulating shielding layer 6 is coated on the outer side of the second conductor 5, a second lead alloy sheath 7 is coated on the two conductors 5 after the two conductors are twisted in pairs, the second plurality of conductor cores are uniformly distributed on the outer side surface of the first conductor core to form a cable core, a glass fiber tape wrapping layer 8, a tensile flame-retardant layer 9, a polyurethane elastic sleeve 10 and a low-smoke zero-halogen flame-retardant polyolefin outer sheath layer 11 are sequentially coated on the outer side of the cable core, a, a rubber rod 12 is arranged in each groove.

And the gaps among the first wire core, the second wire core, the first wire core and the second wire core and between the glass fiber tape winding layer 8 and the cable core are filled with water-blocking aramid yarn filling layers.

As shown in fig. 2, the tensile flame-retardant layer 9 is formed by arranging a plurality of tensile flame-retardant strips in parallel outside the glass fiber tape wrapping layer 8, the tensile flame-retardant strips include a central flame-retardant strip 13, and a plurality of outer filling ropes 14 are twisted outside the central flame-retardant strip 13.

Claims

1. The utility model provides a waterproof fireproof cable of high elasticity which characterized in that: including sinle silk one and many sinle silks two, sinle silk one including conductor one, the outside of conductor one in proper order the cladding have crosslinked polyethylene insulating layer and almag silk to weave the shielding layer, the back cladding has lead alloy sheath one in the outside after bunching three conductors, sinle silk two including conductor two, the cladding has tin-plated soft copper wire and dacron silk to weave the insulation shielding layer in the outside cladding of conductor two, the cladding has lead alloy sheath two after two conductor pairs of twists, constitutes the cable core with two equipartitions of many sinle silks in the lateral surface department of sinle silk one, the cladding has glass fiber tape to wind the cladding in proper order in the outside of cable core, the fire-retardant layer of tensile, polyurethane elastic cover and the fire-retardant polyolefin oversheath layer of low smoke and zero halogen, axial division of inner wall at polyurethane elastic cover has a plurality of recesses, is equipped with the rubber stick in every.

2. The highly elastic waterproof and fireproof cable according to claim 1, wherein: and the gaps among the first wire core, the second wire core, the first wire core and the second wire core and between the glass fiber tape winding layer and the cable core are filled with water-blocking aramid yarn filling layers.

3. The highly elastic waterproof and fireproof cable according to claim 1, wherein: the tensile flame-retardant layer is formed by arranging a plurality of tensile flame-retardant strips on the outer side of the glass fiber tape winding layer in parallel, each tensile flame-retardant strip comprises a central flame-retardant strip, and a plurality of outer filling ropes are twisted on the outer side of the central flame-retardant strip.