Super-flame-retardant fireproof copper sheath cable

Abstract

The utility model provides a super-flame-retardant fireproof copper sheath cable, which relates to the technical field of cables and comprises conductors, a first filling layer, a first insulating layer, a second filling layer, a second insulating layer, an armor layer, a copper sheath and an outer sheath layer. The first insulating layer wraps the outer side of the conductor, the first filling layer is filled between the conductor and the first insulating layer, the second insulating layer wraps the outer side of the first insulating layer, the second filling layer is filled between the first insulating layer and the second insulating layer, the armor layer wraps the outer side of the second insulating layer, the copper sheath wraps the outer side of the armor layer, and the outer side of the copper sheath wraps the outer side of the conductor. The waterproof layer wraps the outer side of the copper sheath, the outer sheath layer wraps the outer side of the copper sheath, and the problems that a traditional cable cannot keep electrical and mechanical integrity at high temperature, cannot meet the continuous power supply requirement of key equipment in a fire disaster, and influences power supply of emergency equipment and personnel safety can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable technical field, concretely relates to a super flame -retardant fireproof copper sheath cable. BACKGROUND

[0002] In high-rise buildings, public facilities, industrial sites and important facilities, the fireproof performance and electrical integrity of cables are crucial. Traditional cables are prone to burning under fire conditions, producing a large amount of toxic smoke, and cannot maintain electrical and mechanical integrity at high temperatures, which cannot meet the continuous power supply needs of key equipment in a fire, affecting the power supply of emergency equipment and personnel safety.

[0003] At the same time, the sheath material of traditional cables is prone to decomposition or burning at high temperatures, which cannot effectively prevent the spread of fire, and lacks an effective heat conduction path, resulting in rapid temperature rise inside the cable and accelerating the damage of the cable. Therefore, it is particularly important to design a cable with super flame-retardant effect that can maintain electrical integrity at high temperatures. SUMMARY

[0004] In order to overcome the problems in the background art, the utility model provides a super flame-retardant fireproof copper sheath cable, which solves the problem that traditional cables cannot maintain electrical and mechanical integrity at high temperatures, cannot meet the continuous power supply needs of key equipment in a fire, and affects the power supply of emergency equipment and personnel safety.

[0005] To achieve the above purpose, the utility model is realized by the following technical scheme:

[0006] A super flame-retardant fireproof copper sheath cable, comprising a conductor, a filler layer one, an insulating layer one, a filler layer two, an insulating layer two, an armored layer, a copper sheath, and an outer sheath layer; the insulating layer one is wrapped outside the conductor, the filler layer one is filled between the conductor and the insulating layer one, the insulating layer two is wrapped outside the insulating layer one, the filler layer two is filled between the insulating layer one and the insulating layer two, the armored layer is wrapped outside the insulating layer two, the copper sheath is wrapped outside the armored layer, the waterproof layer is wrapped outside the copper sheath, and the outer sheath layer is wrapped outside the copper sheath.

[0007] Further, the conductor is a tightly twisted fine-grained tinned copper conductor.

[0008] Further, the filler layer one is a filler layer one formed by ceramicized silicone rubber filler.

[0009] Further, the insulating layer one is a fire-resistant mica tape insulating layer one formed by wrapping a plurality of synthetic mica tapes.

[0010] Further, the filler layer two is a filler layer two made of ceramic fiber.

[0011] Further, the insulation layer two and the outer sheath layer are made of low-smoke halogen-free flame-retardant polyolefin.

[0012] Further, the armor layer is formed by metal strips or metal wires.

[0013] Further, the copper sheath is formed by longitudinally wrapping copper strips.

[0014] The utility model discloses the beneficial effect:

[0015] The cable of the application adopts multi-layer flame-retardant and fire-resistant materials, and the synergistic effect of the fire-resistant mica tape, low-smoke halogen-free flame-retardant material and the like in the filling layer one, the insulation layer one, the filling layer two and the insulation layer two can effectively prevent the spread of flame, the copper sheath enhances the fireproof and heat dissipation performance, the copper sheath formed by longitudinally wrapping and welding copper strips does not burn to form a fireproof barrier under high temperature, meanwhile, the excellent heat conduction performance of copper enables it to rapidly conduct and dissipate the heat inside the cable, thereby reducing the temperature and preventing material decomposition or burning, the conductor selects fine-grain tinned copper by tight pressing and twisting, has high-temperature oxidation resistance, guarantees electrical integrity under high temperature, and the filling layer outside the conductor enables the insulation layer to be round and compact in structure, prevents the spread of flame and heat, and ensures that the cable can still maintain electrical integrity for a period of time under high temperature conditions. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to clearly illustrate the technical solutions of the embodiments of the utility model, the drawings used in the embodiment description are described.

[0017] Fig. 1 It is the whole structure schematic diagram of the utility model;

[0018] Fig. 2 It is the cross section structure schematic diagram of the utility model.

[0019] 1-conductor, 2-filling layer one, 3-insulation layer one, 4-filling layer two, 5-insulation layer two, 6-armor layer, 7-copper sheath, 8-outer sheath layer. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and beneficial effect of the utility model more clear, the preferred embodiment of the utility model will be described in detail below with reference to the drawings, so as to facilitate the understanding of the technical personnel.

[0021] The utility model discloses a kind of super flame-retardant fireproof copper sheath cables, refer to Figs. 1-2The application discloses a super-fire-retardant fireproof copper sheath cable, which comprises a conductor 1, a filling layer one 2, an insulation layer one 3, a filling layer two 4, an insulation layer two 5, an armored layer 6, a copper sheath 7 and an outer sheath layer 8.

[0022] The outer sheath layer 8 can improve the fireproof and retardant performance, the copper sheath 7 can provide fireproof shielding and further mechanical protection, the armored layer 6 can provide mechanical protection, shielding and heat conduction performance, the insulation layer two 5 can improve the electrical insulation, fireproof and mechanical performance, the filling layer two 4 can ensure that the insulation layer two 5 is roundly covered and improve the fireproof and mechanical performance of the cable, the insulation layer one 3 can provide excellent fireproof performance and can maintain the insulation performance under high temperature, and the filling layer one 2 can ensure that the insulation layer one 3 is roundly covered and improve the fireproof and mechanical stability of the cable, and the conductor 1 provides the electrical conductivity.

[0023] Referring to Figs. 1-2 The conductor 1 is a tightly twisted fine-grained tinned copper conductor 1, the tightly twisted fine-grained tinned copper conductor is adopted, the electrical conductivity and the oxidation resistance are enhanced, and the conductor is suitable for high temperature and harsh environment.

[0024] Referring to Figs. 1-2 The filling layer one 2 is a filling layer one 2 formed by ceramicized silicone rubber filling material, the ceramicized silicone rubber can be ceramicized under high temperature, a hard ceramic protection layer is formed, common filling materials are easy to soften or decompose, the ceramicized silicone rubber can be rapidly ceramicized, the shape and integrity of the filling layer are maintained, the internal structure of the cable is prevented from collapsing or being damaged, and the mechanical performance of the cable is improved.

[0025] Referring to Figs. 1-2 The insulation layer one 3 is a fireproof mica tape insulation layer one 3 formed by wrapping a plurality of synthetic mica tapes, excellent fireproof performance is provided, the insulation performance can be maintained under high temperature, and the cable can maintain electrical integrity in a fire and continuously supply power to key equipment.

[0026] Referring to Figs. 1-2 The filling layer two 4 is a filling layer two 4 made of ceramic fiber filling, the high-temperature resistance, fireproof and mechanical protection capability are further improved, and the structural integrity and electrical safety in a fire are improved.

[0027] Referring to Figs. 1-2The second insulation layer 5 and the outer sheath layer 8 are made of low-smoke, halogen-free, flame-retardant polyolefin, which has the advantages of flame retardancy, low smoke, halogen-free, environmental protection and mechanical stability.

[0028] See Figs. 1-2 The armor layer 6 is an armor layer formed by braiding metal strips or wires, which enhances the overall strength and durability of the cable.

[0029] See Figs. 1-2 The copper sheath 7 is formed by longitudinally wrapping copper strips, providing fireproof shielding and further mechanical protection, and improving the fire resistance and heat dissipation performance of the cable.

[0030] Work process:

[0031] When a fire occurs, the outer sheath layer 8 first acts as a flame retardant and smoke suppressant to prevent the fire from spreading. The copper sheath 7 and armor layer 6 do not burn at high temperatures and provide fireproof shielding, mechanical protection and thermal conductivity to quickly dissipate heat. The second insulation layer 5 and the first insulation layer 3 together ensure the electrical insulation performance of the cable. The second filling layer 4 and the first filling layer 2 fill the gaps to prevent the spread of flames and heat inside the cable, giving the cable excellent flame retardant and fireproof effects.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A super flame-retardant and fireproof copper-sheathed cable, characterized in that: It includes a conductor (1), a first filling layer (2), a first insulating layer (3), a second filling layer (4), a second insulating layer (5), an armor layer (6), a copper sheath (7), and an outer sheath layer (8); the first insulating layer (3) is wrapped around the outside of the conductor (1), the first filling layer (2) is filled between the conductor (1) and the first insulating layer (3), the second insulating layer (5) is covered on the outside of the first insulating layer (3), the second filling layer (4) is filled between the first insulating layer (3) and the second insulating layer (5), the armor layer (6) is covered on the outside of the second insulating layer (5), the copper sheath (7) is covered on the outside of the armor layer (6), and the outer sheath layer (8) is covered on the outside of the copper sheath (7).

2. The ultra-flame-retardant and fire-resistant copper-sheathed cable according to claim 1, characterized in that: The conductor (1) is a tightly stranded fine-grained tin-plated copper conductor (1).

3. The ultra-flame-retardant and fire-resistant copper-sheathed cable according to claim 1, characterized in that: The filler layer (2) is a filler layer (2) formed of ceramicized silicone rubber filler.

4. The ultra-flame-retardant and fire-resistant copper-sheathed cable according to claim 1, characterized in that: The insulation layer 1 (3) is a fire-resistant mica tape insulation layer 1 (3) formed by wrapping multiple layers of synthetic mica tape.

5. The ultra-flame-retardant and fire-resistant copper-sheathed cable according to claim 1, characterized in that: The second filling layer (4) is a filling layer (4) made of ceramic fiber filling.

6. The ultra-flame-retardant and fire-resistant copper-sheathed cable according to claim 1, characterized in that: The second insulation layer (5) and the outer sheath layer (8) are made of low-smoke halogen-free flame-retardant polyolefin.

7. The ultra-flame-retardant and fire-resistant copper-sheathed cable according to claim 1, characterized in that: The armor layer (6) is an armor layer formed by weaving metal strips or metal wires.

8. The ultra-flame-retardant and fire-resistant copper-sheathed cable according to claim 1, characterized in that: The copper sheath (7) is a copper sheath (7) formed by longitudinal wrapping of copper strips.

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