CN201622871U

CN201622871U - Halogen-free, low-smoke, flame-retardant and fire-proof cable

Info

Publication number: CN201622871U
Application number: CN2010290920145U
Authority: CN
Inventors: 王迪国; 王建华; 罗君健; 李玮; 罗玉立
Original assignee: XIANGTAN WIRE AND CABLE CO Ltd
Current assignee: XIANGTAN WIRE AND CABLE CO Ltd
Priority date: 2010-02-08
Filing date: 2010-02-08
Publication date: 2010-11-03
Anticipated expiration: 2020-02-08

Abstract

The utility model provides a halogen-free, low-smoke, flame-retardant and fire-proof cable, which consists of an inner core and a sheath, wherein the inner core comprises three strands of power wire cores, a strand of ground wire core and a filling material extruded on the power wire cores and the ground wire core; both the power wire cores and the ground wire core consist of three layers comprising a wire core conductor, a wire core conductor fireproof layer and a wire core insulating layer; and the sheath consists of four layers comprising a belting layer, a lining layer, an armor layer and an outer sheath layer. The cable has good flame-retardant property, produces basically non-toxic smoke during burning, can meet the harsh comprehensive requirements of the fireproof cable for flame-retardant, fire-proof, halogen-free and low-smoke properties and the like, and is suitable for popularization and use in important public places.

Description

The LSOH anti-flaming fire-resisting cable

Technical field

The utility model belongs to the cables manufacturing technical field, is specifically related to a kind of LSOH anti-flaming fire-resisting cable of excellent performance.

Background technology

Low smoke, zero halogen resistance fireproof power cable has the good fire performance of anti-the burning, the flue gas that cable body discharges during burning is nontoxic or toxicity is very little, light transmittance is high, and can in certain burning time, keep supply line unimpeded, flee from for fire fighting and rescue and evacuating personnel, avoid suffocate injures and deaths and alleviate property loss advantage is provided of too much personnel.Fast development along with the development of the national economy, people's fire prevention mitigation safety responsibility consciousness is more and more higher, the LSOH anti-flaming fireproof power cable increases day by day in the application in important places such as industry, electric power, subway city rail, railway station, style entertainment, commercial supermarket, public civil buildings, and market prospects are wide.

Summary of the invention

The nontoxic substantially high-strength fireproof cable of flue gas when the purpose of this utility model is to provide a kind of fire protecting performance excellence, burning.

To achieve these goals, technical solutions of the utility model are as follows:

The LSOH anti-flaming fire-resisting cable is made up of inner core and sheath, described inner core comprises three strands of power cores, one ground core and is extruded in the power core and the packing material of ground on the core that wherein the power core is followed successively by power line core conductor, power line core conductor flame retardant coating and power line core insulation layer from the inside to the outside; Ground core be followed successively by from the inside to the outside the ground wire core conductor, core flame retardant coating and ground wire core insulation layer; Described sheath comprises four layers, is followed successively by belting layer, inner covering, armour and external sheath layer from the inside to the outside.

Described power line core conductor and ground wire core conductor material are copper stranded conductor.

Described power line core conductor flame retardant coating and ground core flame retardant coating all adopt double-deck phlogopite band overlapping wrapped, and the internal layer of double-deck phlogopite and outer wrapped Duplication are not less than 50% and 35% respectively.

Described power line core insulation layer and ground wire core insulation layer material are the LSOH anti-flaming crosslinked polyethylene.

Described packing material is a LSOH anti-flaming glass fiber rope.

Described belting layer, inner covering and external sheath layer material are halogen-free and low-smoke flame-retardant polyolefin.

Described armor material is a galvanized steel strip.

Advantage of the present utility model is:

1, because power line core conductor flame retardant coating adopts double-deck phlogopite, the electric insulating quality height of phlogopite band under burning condition, and the basic Halogen of flue gas is nontoxic, so fire-resisting cable has good insulation performance and nontoxic; Double-deck phlogopite band adopts overlapping wrapped structure, can effectively avoid occurring bottom pour ladle slit, loose fold, scrape phenomenon such as abrasion wound, has guaranteed the reliability of fire-resistant mica insulation layer;

2,, can satisfy composite characteristic requirements such as the flame-retardant of LSOH anti-flaming fire-resisting cable harshness and low smoke, zero halogen because core insulating barrier, belting layer, inner covering, external sheath layer and packing material are all selected the LSOH anti-flaming material for use.

3, the armour between inner covering and the external sheath layer is a galvanized steel strip, can effectively improve the fire resistance of cable when increasing cable intensity.

Description of drawings

Fig. 1: the utility model cross sectional representation

1, power line core conductor; 2, power line core conductor flame retardant coating; 3, power line core insulation layer; 4, packing material; 5, belting layer; 6, inner covering; 7, armour; 8, external sheath layer; 9, ground wire core conductor; 10, core flame retardant coating; 11, ground wire core insulation layer

Embodiment

Below be preferred embodiment of the present utility model, the utility model can the described content of by specification elect any mode to implement.

Specify below in conjunction with accompanying drawing:

See accompanying drawing 1, the LSOH anti-flaming fire-resisting cable is made up of inner core and sheath, inner core comprises three strands of power cores, one ground core and is extruded in the power core and the packing material (4) of ground on the core that wherein the power core is followed successively by power line core conductor (1), power line core conductor flame retardant coating (2) and power line core insulation layer (3) from the inside to the outside; Ground core be followed successively by from the inside to the outside ground wire core conductor (9), core flame retardant coating (10) and ground wire core insulation layer (11); Described sheath comprises four layers, is followed successively by belting layer (5), inner covering (6), armour (7) and external sheath layer (8) from the inside to the outside.

Concrete manufacture craft: power line core conductor (1) and ground wire core conductor (9) material are copper stranded conductor; Power line core conductor flame retardant coating (2) and ground core flame retardant coating (10) all adopt double-deck phlogopite band overlapping wrapped, the internal layer and the outer wrapped Duplication of double-deck phlogopite are not less than 50% and 35% respectively, difference according to conductor diameter, shape, suitably select the mica tape width and adjust the band tension, make mica tape wrapped smooth, tight, seamless; Power line core insulation layer (3) and ground wire core insulation layer (11) material are the LSOH anti-flaming crosslinked polyethylene; And packing material (4) adopts LSOH anti-flaming glass fiber rope; Belting layer (5), inner covering (6) and external sheath layer (8) material are halogen-free and low-smoke flame-retardant polyolefin; Armour (7) material is a galvanized steel strip.

The cable performance parameter is: in the time of 20 ℃, specific insulation is not less than 1010 Ω m, and frequency breakdown voltage is not less than 16MV/m; Power-frequency voltage 1kv/90min does not puncture under 800 ℃ of high temperature, and insulation resistance is not less than 1M Ω; Power-frequency voltage 1kv/90min does not puncture under the 950-1000 ℃ of high temperature, and insulation resistance is not less than 0.4M Ω.

Claims

1. LSOH anti-flaming fire-resisting cable, form by inner core and sheath, it is characterized in that: described inner core comprises three strands of power cores, one ground core and is extruded in the power core and the packing material (4) of ground on the core that wherein the power core is followed successively by power line core conductor (1), power line core conductor flame retardant coating (2) and power line core insulation layer (3) from the inside to the outside; Ground core be followed successively by from the inside to the outside ground wire core conductor (9), core flame retardant coating (10) and ground wire core insulation layer (11); Described sheath comprises four layers, is followed successively by belting layer (5), inner covering (6), armour (7) and external sheath layer (8) from the inside to the outside.

2. LSOH anti-flaming fire-resisting cable according to claim 1 is characterized in that: described power line core conductor (1) and ground wire core conductor (9) material are copper stranded conductor.

3. LSOH anti-flaming fire-resisting cable according to claim 1 is characterized in that: described power line core conductor flame retardant coating (2) and ground core flame retardant coating (10) all adopt double-deck phlogopite band overlapping wrapped.

4. LSOH anti-flaming fire-resisting cable according to claim 3 is characterized in that: the internal layer of described double-deck phlogopite and outer wrapped Duplication are not less than 50% and 35% respectively.

5. LSOH anti-flaming fire-resisting cable according to claim 1 is characterized in that: described power line core insulation layer (3) and ground wire core insulation layer (11) material are the LSOH anti-flaming crosslinked polyethylene.

6. LSOH anti-flaming fire-resisting cable according to claim 1 is characterized in that: described packing material (4) is a LSOH anti-flaming glass fiber rope.

7. LSOH anti-flaming fire-resisting cable according to claim 1 is characterized in that: described belting layer (5), inner covering (6) and external sheath layer (8) material are halogen-free and low-smoke flame-retardant polyolefin.

8. LSOH anti-flaming fire-resisting cable according to claim 1 is characterized in that: described armour (7) material is a galvanized steel strip.