CN211376277U - High flame-retardant strong-fire-resistant power cable - Google Patents

Abstract

The utility model discloses a high fire-retardant strong fire-resistant type power cable, the cable core is by a plurality of insulation core transposition forms, the cable core sets gradually filling layer, band layer and oversheath outward, the cable core with be equipped with between the band layer the filling layer. The utility model provides a high fire-retardant, fire-resistant type power cable by force has the fire-resistant characteristics of fire prevention, has characteristics such as ageing-resistant, intensity height, low cigarette nontoxic, high fire-retardant fire-resistant type by force simultaneously, can adapt to specific service environment, and this product property can be excellent, can produce good economy and social.

Description

High flame-retardant strong-fire-resistant power cable

Technical Field

The utility model relates to a special power cable technical field especially relates to a high fire-retardant strong fire-resistant type power cable.

Background

Metallurgy and chemical industry enterprises play an important role in national economy of China, and meanwhile, metallurgy and chemical industry are basic industries and supporting industries of many countries. In the production link of metallurgy and chemical enterprises in reality, the working environment with higher fire fighting requirements greatly shortens the service life of the common electric wire and cable because the common electric wire and cable cannot tolerate a high-temperature environment, influences the normal production operation of the metallurgy and chemical enterprises and brings great problems to the enterprises. Improvements are therefore urgently required.

SUMMERY OF THE UTILITY MODEL

In view of the above prior art's shortcoming, the utility model aims to provide a high fire-retardant strong fire-resistant type power cable for solve the ordinary wire and cable among the prior art and make life shorten greatly because can not endure high temperature environment, influence the normal production moving problem of metallurgy, chemical industry enterprise.

For realizing above-mentioned purpose and other relevant purposes, the utility model provides a high fire-retardant strong fire-resistant type power cable, high fire-retardant strong fire-resistant type power cable includes insulating core and cable core, the cable core is by a plurality of insulating core transposition forms, the cable core sets gradually filling layer, band layer and oversheath outward, the cable core with be equipped with between the band layer the filling layer.

The utility model discloses an in the embodiment, the insulated wire core from interior to exterior has set gradually the conductor, around covering, insulating layer.

In an embodiment of the present invention, the filling layer is a glass fiber rope.

In an embodiment of the present invention, the conductor is formed by twisting a plurality of oxygen-free copper wires.

In an embodiment of the present invention, the mica tape is wrapped around the covering, and the wrapping layer is a ceramic silicone rubber tape.

In an embodiment of the present invention, the covering rate of the mica tape and the ceramic silicone rubber tape is not less than 50%.

In an embodiment of the present invention, the insulating layer is silicon rubber.

In an embodiment of the present invention, the outer sheath is a thermosetting halogen-free low-smoke flame-retardant polyolefin sheath material.

As above, the utility model discloses a high fire-retardant strong fire-resistant type power cable has following beneficial effect:

the utility model discloses a high fire-retardant strong fire-resistant type power cable includes insulation core and cable core, the cable core is by a plurality of insulation core transposition forms, the cable core sets gradually filling layer, band layer and oversheath outward, the cable core with be equipped with between the band layer the filling layer. The utility model provides a high fire-retardant, fire-resistant type power cable by force has the fire-resistant characteristics of fire prevention, has characteristics such as ageing-resistant, intensity height, low cigarette nontoxic, high fire-retardant fire-resistant type by force simultaneously, can adapt to specific service environment, and this product property can be excellent, can produce good economy and social.

Drawings

Fig. 1 is a schematic structural diagram of a power cable with high flame retardancy and strong fire resistance according to an embodiment of the present application.

The element numbers are as follows:

1. conductor

2. Wrapping layer

3. Insulating layer

4. Filling layer

5. Band layer

6. Outer sheath

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

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.

It should be noted that the drawings provided in the following embodiments are only for illustrating the basic concept of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the form, amount and ratio of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a high flame-retardant and strong fire-resistant power cable according to an embodiment of the present disclosure. The utility model provides a high fire-retardant strong fire-resistant type power cable, high fire-retardant strong fire-resistant type power cable includes but not limited to insulation core and cable core. The cable core is formed by stranding a plurality of insulation wire cores, a filling layer 4, a belting layer 5 and an outer sheath 6 are sequentially arranged outside the cable core, and the filling layer 4 is arranged between the cable core and the belting layer 5.

Specifically, the insulated wire core is sequentially provided with a conductor 1, a wrapping layer 2 and an insulating layer 3 from inside to outside. The filling layer 4 is a glass fiber rope. The conductor 1 is formed by stranding a plurality of oxygen-free copper. The wrapping layer 2 is a mica tape, and the wrapping layer 5 is a ceramic silicone rubber tape. The cover overlapping rate of the mica tape and the ceramic silicon rubber tape is not less than 50%. The insulating layer 3 is silicon rubber. The outer sheath 6 is a thermosetting halogen-free low-smoke flame-retardant polyolefin sheath material.

Referring to fig. 1, the utility model discloses a high fire-retardant strong fire-resistant power cable includes insulating core and cable core, and the cable core sets gradually band layer 5, oversheath 6 outward, and the cable core is formed by the transposition of a plurality of insulating core, and insulating core sets gradually conductor 1 from inside to outside, around covering 2, insulating layer 3 is crowded package of silicon rubber and forms, has the waterproof characteristic of corrosion-resistant gas, it is the mica tape to wind covering 2, wherein mica tape overlap the percentage and be not less than 50%, still be equipped with filling layer 4 between cable core and band layer 5, filling layer 4 uses the glass fiber rope, wherein mica tape, glass fiber rope have high fire-retardant high temperature resistant, corrosion-resistant, ageing-resistant, weatherability characteristics, intensity is high and the sound construction, so can effectively protect insulating layer 3 is not harmed; the conductor 1 is formed by stranding a plurality of oxygen-free copper wires and has strong corrosion resistance and oxidation resistance. The wrapping band layer 5 is made of a ceramic silicon rubber band material, has the characteristics of acid resistance, alkali resistance, salt resistance and oil medium corrosion resistance, high mechanical property, cold resistance, high temperature resistance, high flame retardant property, wear resistance, insulation and electrical property and softness, can be fired into ceramic armor under the conditions of 350-3000 ℃ flame or flameless, and has good crusting property and excellent fireproof and fireproof properties; the outer sheath 6 is made of a thermosetting halogen-free low-smoke flame-retardant polyolefin sheath material, does not contain halogen, is low in corrosivity of combustion products, generates less smoke during combustion, namely is high in light transmittance and visibility, and can adapt to specific use environment conditions.

The utility model discloses a high fire-retardant strong fire-resistant type power cable design has double-deck fire-resistant ceramic silicon rubber area, can protect the cable inner structure intact, the effectual unblocked that keeps transmission power line, and the cooperation of fine rope of glass is used and is made the cable reach fire-resistant, high temperature resistant, the effect of gaining in strength, enables the cable safe operation under the high temperature condition, and oxygen-free copper conductor also has corrosion resistance, oxidation resistance, and this design improves the fire-resistant high temperature resistant and the reliability of cable on the whole.

To sum up, the utility model discloses a high fire-retardant strong fire-resistant type power cable includes insulation core and cable core, the cable core is by a plurality of insulation core transposition forms, the cable core sets gradually filling layer 4, band layer 5 and oversheath 6 outward, the cable core with be equipped with between the band layer 5 filling layer 4. The utility model provides a high fire-retardant, fire-resistant type power cable by force has the fire-resistant characteristics of fire prevention, has characteristics such as ageing-resistant, intensity height, low cigarette nontoxic, high fire-retardant fire-resistant type by force simultaneously, can adapt to specific service environment, and this product property can be excellent, can produce good economy and social.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (1)

1. The utility model provides a high fire-retardant strong fire-resistant type power cable which characterized in that: the high-flame-retardant and strong-flame-retardant power cable comprises insulating wire cores and a cable core, wherein the cable core is formed by twisting a plurality of insulating wire cores, a filling layer (4), a belting layer (5) and an outer sheath (6) are sequentially arranged outside the cable core, and the filling layer (4) is arranged between the cable core and the belting layer (5);

the insulated wire core is sequentially provided with a conductor (1), a wrapping layer (2) and an insulating layer (3) from inside to outside;

the filling layer (4) is a glass fiber rope;

the conductor (1) is formed by stranding a plurality of oxygen-free copper wires;

the wrapping layer (2) is a mica tape, and the wrapping layer (5) is a ceramic silicon rubber tape;

the cover overlapping rate of the mica tape and the ceramic silicon rubber tape is not less than 50 percent;

the insulating layer (3) is silicon rubber;

the outer sheath (6) is made of a thermosetting halogen-free low-smoke flame-retardant polyolefin sheath material.

Images