CN223665212U - A super flame-retardant and fireproof copper-sheathed cable - Google Patents

Abstract

This utility model proposes an ultra-flame-retardant and fireproof copper-sheathed cable, relating to the field of cable technology. It includes a conductor, a first filler layer, a first insulation layer, a second filler layer, a second insulation layer, an armor layer, a copper sheath, and an outer sheath layer. The first insulation layer wraps around the outside of the conductor; the first filler layer fills the space between the conductor and the first insulation layer; the second insulation layer covers the outside of the first insulation layer; the second filler layer fills the space between the first and second insulation layers; the armor layer covers the outside of the second insulation layer; the copper sheath covers the outside of the armor layer; the waterproof layer covers the outside of the copper sheath; and the outer sheath layer covers the outside of the copper sheath. This application solves the problem that traditional cables cannot maintain electrical and mechanical integrity at high temperatures, cannot meet the continuous power supply needs of critical equipment during fires, and affect the power supply of emergency equipment and personnel safety.

Description

Super fire-retardant fire prevention copper sheath cable

Technical Field

The utility model relates to the technical field of cables, in particular to a super-flame-retardant fireproof copper sheath cable.

Background

In high-rise buildings, public facilities, industrial sites and important facilities, the fire resistance and electrical integrity of the cable is critical. Traditional cable burns easily under the conflagration condition, produces a large amount of poisonous smog, and can't keep electrical and mechanical integrity under the high temperature, can't satisfy the continuous power supply demand of key equipment in the conflagration, influences emergency equipment's power supply and personnel's safety.

Meanwhile, the sheath material of the traditional cable is easy to decompose or burn at high temperature, flame cannot be effectively prevented from spreading, and an effective heat conduction path is lacked, so that the temperature inside the cable is rapidly increased, and the damage of the cable is accelerated. Therefore, it is important to design a cable with super flame retardant effect, which can maintain electrical integrity at high temperature.

Disclosure of utility model

In order to overcome the problems in the background technology, the utility model provides a super-flame-retardant fireproof copper sheath cable, which solves the problems that the traditional cable cannot keep electrical and mechanical integrity at high temperature, cannot meet the continuous power supply requirement of key equipment in fire disaster, and affects the power supply of emergency equipment and personnel safety.

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

The super-flame-retardant fireproof copper-sheathed cable comprises a conductor, 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, wherein the first insulating layer is wrapped outside the conductor, the first filling layer is filled between the conductor and the first insulating layer, the second insulating layer is coated outside the first insulating layer, the second filling layer is filled between the first insulating layer and the second insulating layer, the armor layer is coated outside the insulating layer, the copper sheath is coated outside the armor layer, the waterproof layer is coated outside the copper sheath, and the outer sheath layer is coated outside the copper sheath.

Further, the conductor is a compacted stranded fine grain tin-plated copper conductor.

Further, the first filling layer is formed by ceramic silicon rubber filling materials.

Further, the first insulating layer is a fire-resistant mica tape insulating layer formed by wrapping a plurality of layers of synthetic mica tapes.

Further, the second filling layer is a second filling layer made of ceramic fibers.

Further, the second insulating layer and the outer sheath layer are made of low-smoke halogen-free flame-retardant polyolefin.

Further, the armor is formed by braiding metal strips or wires.

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

The utility model has the beneficial effects that:

The cable adopts multilayer flame retardant and refractory materials, the first filling layer, the first insulating layer, the second filling layer, the refractory mica tape of the second insulating layer, the low smoke halogen-free flame retardant material and the like to cooperate, flame spread can be effectively prevented, the copper sheath enhances fireproof and heat dissipation performance, the copper sheath formed by longitudinally wrapping and welding copper strips is not combusted at high temperature to form a fireproof barrier, meanwhile, the excellent heat conduction performance of copper enables the copper sheath to rapidly conduct and emit heat in the cable, the temperature is reduced, material decomposition or combustion is prevented, the conductor is made of compressed stranded fine crystal tinned copper, the high temperature oxidation resistance is achieved, the electrical integrity at high temperature is guaranteed, the insulating layer is round and compact in wrapping and structure due to the filling layer outside the conductor, flame and heat spread are prevented, and the cable can still maintain the electrical integrity for a period of time under the high temperature condition is ensured.

Drawings

For the purpose of clearly illustrating the technical solutions in the embodiments of the present utility model, the drawings that are required to be used in the description of the embodiments will be described.

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

Fig. 2 is a schematic cross-sectional structure of the present utility model.

1-Conductor, 2-filling layer I, 3-insulating layer I, 4-filling layer II, 5-insulating layer II, 6-armor layer, 7-copper sheath, 8-oversheath layer.

Detailed Description

In order to make the objects, technical solutions and advantageous effects of the present utility model more apparent, preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate understanding of the skilled person.

The utility model discloses a super-flame-retardant fireproof copper sheath cable, referring to fig. 1-2, which comprises 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, wherein the first insulating layer 3 is wrapped on the outer side 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 wrapped on the outer side 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 wrapped on the outer side of the second insulating layer 5, the copper sheath 7 is wrapped on the outer side of the armor layer 6, the waterproof layer 8 is wrapped on the outer side of the copper sheath 7, and the outer sheath layer 8 is wrapped on the outer side of the copper sheath 7.

The outer sheath layer 8 can provide protection and flame retardant properties, the copper sheath 7 can provide fireproof shielding and further mechanical protection, the armor layer 6 can provide mechanical protection, shielding and heat conducting properties, the insulating layer two 5 can improve electrical insulation, flame retardance and mechanical properties, the filling layer two 4 can ensure that the insulating layer two 5 is round in coating, the flame retardance and mechanical properties of the cable are improved, the insulating layer one 3 can provide excellent flame retardant properties, the insulating properties can be kept at high temperature, the filling layer one 2 can ensure that the insulating layer one 3 is round in coating, the flame retardance and mechanical stability of the cable are improved, and the conductor 1 provides conductive properties.

Referring to fig. 1-2, the conductor 1 is a tightly-pressed and stranded fine-grain tinned copper conductor 1, and the tightly-pressed and stranded fine-grain tinned copper conductor is adopted to enhance the conductivity and the oxidation resistance, so that the conductor is suitable for high-temperature and severe environments.

Referring to fig. 1-2, the first filling layer 2 is a first filling layer 2 formed by a ceramic silicon rubber filling material, the ceramic silicon rubber can undergo a ceramic reaction under a high temperature condition to form a hard ceramic protection layer, the common filling material is easy to soften or decompose, the ceramic silicon rubber can be rapidly ceramic, the shape and the integrity of the filling layer are maintained, the collapse or damage of the internal structure of the cable is prevented, and the mechanical property of the cable is improved.

Referring to fig. 1-2, the insulating layer one 3 is a fire-resistant mica tape insulating layer one 3 formed by wrapping a plurality of layers of synthetic mica tapes, provides excellent fire resistance, can maintain the insulating performance at high temperature, can still maintain the electrical integrity of the cable in fire, and continuously supplies power to key equipment.

Referring to fig. 1-2, the second filling layer 4 is a second filling layer 4 made of ceramic fibers, so that the high temperature resistance, flame retardance and mechanical protection capability are further improved, and the structural integrity and electrical safety during a fire condition are improved.

Referring to fig. 1-2, the insulating layer two 5 and the outer sheath layer 8 are made of low-smoke halogen-free flame retardant polyolefin, and the insulating layer two 5 and the outer sheath layer 8 have the advantages of flame retardance, low smoke, no halogen, environmental protection, mechanical stability and the like.

Referring to fig. 1-2, the armor layer 6 is an armor layer formed by braiding metal strips or wires, so as to enhance the overall strength and durability of the cable.

Referring to fig. 1-2, the copper sheath 7 is a copper sheath 7 formed by longitudinally wrapping copper strips, provides fireproof shielding and further mechanical protection, and improves the fireproof and heat dissipation performance of the cable.

The working process comprises the following steps:

When a fire disaster occurs, the outer sheath layer 8 firstly plays a role of flame retardance and smoke suppression, the fire is prevented from spreading, the copper sheath 7 and the armor layer 6 are not burnt at high temperature, fireproof shielding, mechanical protection and heat conduction performance are provided, heat is rapidly dissipated, the edge layer two 5 and the insulating layer one 3 jointly ensure the electrical insulation performance of the cable, the filling layer two 4 and the filling layer one 2 fill gaps, flame and heat are prevented from spreading inside the cable, and the cable has an excellent flame retardance and fireproof effect.

The foregoing description is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical solution of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (8)

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 insulation layer (3), a second filling layer (4), a second insulation layer (5), an armor layer (6), a copper sheath (7), and an outer sheath layer (8); the first insulation 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 insulation layer (3), the second insulation layer (5) is covered on the outside of the first insulation layer (3), the second filling layer (4) is filled between the first insulation layer (3) and the second insulation layer (5), the armor layer (6) is covered on the outside of the second insulation 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 fireproof 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 fireproof copper sheathed cable according to claim 1, characterized in that: the first filling layer (2) is a first filling layer (2) formed of ceramicized silicone rubber filler. 4. The ultra-flame-retardant fireproof copper sheathed cable according to claim 1, characterized in that: the insulation layer one (3) is a fire-resistant mica tape insulation layer one (3) formed by wrapping multiple layers of synthetic mica tape. 5. The ultra-flame-retardant fireproof copper sheathed cable according to claim 1, characterized in that: the second filling layer (4) is a second filling layer (4) made of ceramic fiber filling. 6. The ultra-flame-retardant fireproof 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 fireproof copper sheathed cable according to claim 1, wherein the armor layer (6) is an armor layer formed by braiding metal strips or metal wires. 8. The ultra-flame-retardant and fireproof 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.