CN203288329U

CN203288329U - Fireproof cable

Info

Publication number: CN203288329U
Application number: CN201320354408XU
Authority: CN
Inventors: 张旭明; 于洪才
Original assignee: LIAONING YUDA ELECTRICAL APPLIANCE CO Ltd
Current assignee: LIAONING YUDA ELECTRICAL APPLIANCE CO Ltd
Priority date: 2013-06-20
Filing date: 2013-06-20
Publication date: 2013-11-13
Anticipated expiration: 2023-06-20

Abstract

The utility model relates to a fireproof cable. The fireproof cable is designed mainly for solving the problems that the conventional fireproof cable is high in manufacture cost, trouble in installation, etc., and comprises a plurality of insulating wire cores. Each insulating wire core comprises a copper conductor formed by twisting copper wires, a high temperature resistant mica tape is wrapped on the outside of the copper conductor, a halogen free low-smoke flame retardant plastic layer is extruded on the outside of the high temperature resistant mica tape, and a flame retardant glass tape is wrapped on the outside of the halogen free low-smoke flame retardant plastic layer. The plurality of insulating wire cores are twisted together, and then a plurality of layers of outer flame retardant glass tapes are wrapped on the outsides of the plurality insulating wire cores; noncombustible fillers are filled between the plurality of twisted insulating wire cores and the outer flame retardant glass tapes, and among the insulating wire cores, and a steel band armor is wrapped on the outside of the outermost layer of outer flame retardant glass tape, and an outer sheath is extruded on the outside of the steel band armor. The advantages of the utility model are that the fireproof cable is high temperature resistant, prevents combustion, guarantees the normal running, is low in manufacture cost, and is easy to install.

Description

A kind of fireproof cable

Technical field:

The utility model relates to a kind of fireproof cable.

Background technology:

In the last few years, some important public buildings require more and more higher to fire-protection standard, not only require cable itself fire-retardant, do not propagate and enlarge the condition of a fire, but also require in vibrations and water pouring situation still normal power transmission of cable, put out a fire and rescue people lives and properties try to gain time precious to one in order to give.Existing fireproof cable adopts mineral insulation copper pipe sheath,, although flameproof effect is good, has many serious problems, is mainly that consumption copper is many, and manufacturing cost is high, and trouble is installed, and particularly bending and jiont treatment difficulty are large.

Summary of the invention:

Technical problem to be solved in the utility model is to provide a kind of low cost of manufacture, installs easily, and the fireproof cable of good flame retardation effect.

Above-mentioned purpose is achieved in that it comprises several insulated wire cores, each insulated wire cores comprises by the stranded copper conductor that forms of copper wire, the copper conductor outside is surrounded with the high temperature resistant mica tape that can play fire prevention and insulating effect, there is the LSOH anti-flaming plastic layer that closely extrudes by extrusion equipment high temperature resistant mica tape outside, and LSOH anti-flaming plastic layer outside is surrounded with fireproof glass silk strap; Several insulated wire cores twist together rear outside and are surrounded with the outer fire-retardant glass wool cloth band of some layers, all be filled with and do not fire filler after each insulated wire cores twists together and between outer fire-retardant glass wool cloth band and between each insulated wire cores, do not fire filler and can play the effect that makes the construction of cable stable of tamping; Outermost outer fire-retardant glass wool cloth band outside is surrounded with steel-tape armouring, and the steel-tape armouring outside extrudes the oversheath of LSOH anti-flaming plastic production.

The utility model has the advantages that: because the outside of the copper conductor in each insulated wire cores is surrounded with high temperature resistant mica tape; high temperature resistant mica tape outside is extruded with the LSOH anti-flaming plastic layer; all be filled with and do not fire filler after each insulated wire cores twists together and between outer fire-retardant glass wool cloth band and between each insulated wire cores, can effectively play high temperature resistant, as to prevent from burning, protecting the normal operation of cable effect.Particularly in outermost outer fire-retardant glass wool cloth band outside, be surrounded with steel-tape armouring, the steel-tape armouring outside extrudes the oversheath of LSOH anti-flaming plastic production, steel-tape armouring can play the effect of the cooling of gear fire, stable electrical cable structure and anti-vibration, and the steel band price is low, the cables manufacturing cost is reduced greatly, install easily.

Description of drawings:

Accompanying drawing 1 is cross-sectional structure schematic diagram of the present utility model.

Embodiment:

With reference to accompanying drawing, it comprises several insulated wire cores, each insulated wire cores comprises by the stranded copper conductor that forms 1 of copper wire, the copper conductor outside is surrounded with the high temperature resistant mica tape 2 that can play fire prevention and insulating effect, there is the LSOH anti-flaming plastic layer 3 that closely extrudes by extrusion equipment high temperature resistant mica tape outside, and LSOH anti-flaming plastic layer outside is surrounded with fireproof glass silk strap 4; Several insulated wire cores twist together rear outside and are surrounded with the outer fire-retardant glass wool cloth band 6 of some layers, all are filled with and do not fire filler 5 after each insulated wire cores twists together and between outer fire-retardant glass wool cloth band 6 and between each insulated wire cores; Outermost outer fire-retardant glass wool cloth band outside is surrounded with steel-tape armouring 7, and the steel-tape armouring outside is extruded with the oversheath 8 with the LSOH anti-flaming plastic production.

Claims

1. fireproof cable, comprise several insulated wire cores, each insulated wire cores comprises by the stranded copper conductor that forms of copper wire (1), it is characterized in that: the copper conductor outside is surrounded with high temperature resistant mica tape (2), there is the LSOH anti-flaming plastic layer (3) that closely extrudes by extrusion equipment high temperature resistant mica tape outside, and LSOH anti-flaming plastic layer outside is surrounded with fireproof glass silk strap (4); Several insulated wire cores twist together rear outside and are surrounded with the outer fire-retardant glass wool cloth band (6) of some layers, all are filled with and do not fire filler (5) after each insulated wire cores twists together and between outer fire-retardant glass wool cloth band (6) and between each insulated wire cores; Outermost outer fire-retardant glass wool cloth band outside is surrounded with steel-tape armouring (7), and the steel-tape armouring outside is extruded with oversheath (8).