CN218299408U

CN218299408U - Ageing-resistant flexible fireproof sheath flexible cable

Info

Publication number: CN218299408U
Application number: CN202222603041.2U
Authority: CN
Inventors: 徐玉彬
Original assignee: Zhejiang Topu Technology Co ltd
Current assignee: Zhejiang Topu Technology Co ltd
Priority date: 2022-09-23
Filing date: 2022-09-23
Publication date: 2023-01-13
Anticipated expiration: 2032-09-23

Abstract

The utility model provides an ageing-resistant flexible fire prevention sheath flexible cable includes the oversheath, the inboard of oversheath is provided with the shielding layer, the inboard of shielding layer is provided with the inner sheath, the inboard of inner sheath is provided with glass silk band, the inboard in glass silk band is provided with the fire prevention asbestos. The utility model provides an ageing-resistant flexible fire prevention sheath flexible cable uses through the cooperation of oversheath and inner sheath, effectively improves the ageing resistance and the electrical insulation performance of cable, and double-deck protection can prevent the puncture, and oversheath and inner sheath adopt polyethylene material and polyvinyl chloride material respectively, can effectively improve the compliance of cable, and simple structure is practical, can be with the problem that the easy bending of outer parcel of cable drops in the back of effectively avoiding blowing the sun.

Description

Ageing-resistant flexible fireproof sheath flexible cable

Technical Field

The utility model relates to a cable field especially relates to ageing-resistant flexible fire prevention sheath flexible cable.

Background

Cables are generally rope-like cables made up of several or groups of at least two conductors twisted together, each group being insulated from one another and often twisted around a center, the entire outer surface being covered with a highly insulating coating. The cable has the characteristics of internal electrification and external insulation.

Common faults of cable lines include mechanical damage, insulation moisture, insulation aging deterioration, overvoltage, cable overheating fault and the like. When the fault occurs in the line, the power supply of the fault cable is cut off, a fault point is searched, the fault is checked and analyzed, then the repair and the test are carried out, the cutting of the cutting is carried out, and after the fault is eliminated, the power supply can be recovered.

In the related art, the cable may be bent after being laid due to use requirements. The outer parcel of current partial cable adopts the rubber material, and the rubber material appears ageing phenomenon easily after long-time wind blows the sunshine to lead to at the part of bending of cable, the outer parcel probably drops, and then has certain potential safety hazard, arouses the condition that the circuit is on fire to appear probably.

Therefore, there is a need to provide an aging-resistant flexible fire-proof sheathed flexible cable that solves the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides an ageing-resistant flexible fire prevention sheath flexible cable has solved in the correlation technique, and the outer parcel of current partial cable blows the sun the after-mentioned problem that leads to droing because of the bending.

For solving the technical problem, the utility model provides an ageing-resistant flexible fire prevention sheath flexible cable, including the oversheath, the inboard of oversheath is provided with the shielding layer, the inboard of shielding layer is provided with the inner sheath, the inboard of inner sheath is provided with glass silk band, the inboard in glass silk band is provided with the fire prevention asbestos.

Preferably, the inner side of the fireproof asbestos is provided with three insulating layers, the inner sides of the three insulating layers are provided with fire-resistant layers, and the inner sides of the three fire-resistant layers are provided with copper conductors.

Preferably, the outer sheath is made of polyethylene and is 3MM thick, and the shielding layer is an aluminum foil paper layer and is 1MM thick.

Preferably, the inner sheath is a polyvinyl chloride insulating layer and has a thickness of 3.5MM.

Preferably, the insulating layer is a polyvinyl chloride insulating layer with the thickness of 1MM, and the fire-resistant layer is made of a silicon rubber material with the thickness of 1.2MM.

Preferably, the fireproof asbestos is ultra-thin fireproof asbestos.

Compared with the prior art, the utility model provides an ageing-resistant flexible fire prevention sheath flexible cable has following beneficial effect:

the utility model provides an ageing-resistant flexible fire prevention sheath flexible cable uses through the cooperation of oversheath and inner sheath, effectively improves the ageing resistance and the electrical insulation performance of cable, and double-deck protection can prevent the puncture, and oversheath and inner sheath adopt polyethylene material and polyvinyl chloride material respectively, can effectively improve the compliance of cable, and simple structure is practical, can be with the problem that the easy bending of outer parcel of cable drops in the back of effectively avoiding blowing the sun.

Drawings

Fig. 1 is a schematic structural view of a preferred embodiment of the flexible fire-resistant flexible cable according to the present invention.

Reference numbers in the figures: 1. an outer sheath; 2. a shielding layer; 3. an inner sheath; 4. a glass fiber wrapping tape; 5. fireproof asbestos; 6. an insulating layer; 7. a refractory layer; 8. a copper conductor.

Detailed Description

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

Please refer to fig. 1 in combination, wherein fig. 1 is a schematic structural diagram of a preferred embodiment of the flexible fire-proof sheath flexible cable with aging resistance, which comprises an outer sheath 1, a shielding layer 2 is arranged on the inner side of the outer sheath 1, an inner sheath 3 is arranged on the inner side of the shielding layer 2, a glass fiber tape 4 is arranged on the inner side of the inner sheath 3, and fire-proof asbestos 5 is arranged on the inner side of the glass fiber tape 4.

The inboard of fire prevention asbestos 5 is provided with three insulating layer 6, and the inboard of three insulating layer 6 all is provided with flame retardant coating 7, and the inboard of three flame retardant coating 7 all is provided with copper conductor 8.

The outer sheath 1 is made of polyethylene, the thickness of the outer sheath is 3MM, the shielding layer 2 is an aluminum foil paper layer, the thickness of the outer sheath is 1MM, the polyethylene has excellent environmental stress cracking resistance and electrical insulation, high heat resistance, impact resistance, puncture resistance and the like, and the aging resistance of the cable can be effectively improved.

The inner sheath 3 is a polyvinyl chloride insulating layer with a thickness of 3.5MM, and the polyvinyl chloride insulating layer is soft polyvinyl chloride, and has the advantages of flame retardance (flame retardance value of more than 40), high chemical resistance (resistance to concentrated hydrochloric acid, 90% sulfuric acid, 60% nitric acid and 20% sodium hydroxide), and good mechanical strength and electrical insulation.

The insulating layer 6 is a polyvinyl chloride insulating layer with the thickness of 1MM, and the fire-resistant layer 7 is made of silicon rubber with the thickness of 1.2MM.

The fireproof asbestos 5 is an ultra-thin fireproof asbestos, and the fireproof asbestos 5 has the properties of high tensile strength, high flexibility, chemical and thermal erosion resistance, electrical insulation and the like.

The utility model provides an ageing-resistant flexible fire prevention sheath flexible cable's theory of operation as follows:

when using, use through the cooperation of oversheath 1 and inner sheath 3, effectively improve the ageing resistance and the electrical insulation performance of cable, and oversheath 1 and inner sheath 3 adopt polyethylene material and polyvinyl chloride material respectively, can effectively improve the compliance of cable, and the fire behavior of cable can be improved to glass silk band 4 and fire prevention asbestos 5's cooperation use.

the anti-aging performance and the electric insulation performance of the cable are effectively improved through the cooperation of the outer sheath 1 and the inner sheath 3, the double-layer protection can prevent puncture, the outer sheath 1 and the inner sheath 3 are made of polyethylene materials and polyvinyl chloride materials respectively, the flexibility of the cable can be effectively improved, the structure is simple and practical, and the problem that the cable is easily bent and falls off due to the outer wrapping of the cable after being exposed to the sun by wind can be effectively avoided.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. Ageing-resistant flexible fire prevention sheath flexible cable, including oversheath (1), its characterized in that: the fireproof protective sheath is characterized in that a shielding layer (2) is arranged on the inner side of the outer sheath (1), an inner sheath (3) is arranged on the inner side of the shielding layer (2), a glass fiber wrapping tape (4) is arranged on the inner side of the inner sheath (3), and fireproof asbestos (5) is arranged on the inner side of the glass fiber wrapping tape (4).

2. The flexible fire-resistant sheathed flexible cable according to claim 1, wherein three insulating layers (6) are arranged on the inner side of the fire-resistant asbestos (5), fire-resistant layers (7) are arranged on the inner sides of the three insulating layers (6), and copper conductors (8) are arranged on the inner sides of the three fire-resistant layers (7).

3. The flexible fire-resistant flexible jacketed flexible cable according to claim 1, characterized in that the outer jacket (1) is made of polyethylene and has a thickness of 3MM, and the shielding layer (2) is an aluminum foil paper layer and has a thickness of 1MM.

4. The flexible fire-resistant flexible cable sheath according to claim 1, characterized in that the inner sheath (3) is an insulating layer of polyvinyl chloride with a thickness of 3.5MM.

5. The flexible fire-resistant sheathed flexible cable according to claim 2, wherein the insulating layer (6) is a polyvinyl chloride insulating layer with a thickness of 1MM, and the flame-resistant layer (7) is a silicone rubber material with a thickness of 1.2MM.

6. The flexible fire-resistant sheathed flexible cable according to claim 1, wherein the fire-resistant asbestos (5) is an ultra-thin type fire-resistant asbestos.