CN208061711U - A kind of modified fire-fighting power supply line - Google Patents

Abstract

The utility model is related to electrical transmission accessories, a kind of modified fire-fighting power supply line is provided, including power cord ontology, the power cord ontology includes oversheath, inner sheath, fire prevention nanometer insulating layer, inner sandwich layer, three pieces isolating pad, three cushion collars and three conducting wires, three cavitys are divided by three pieces isolating pad inside the inner sandwich layer, three cushion collars are respectively coated by three conducting wires and are arranged in respectively in three cavitys of inner sandwich layer, fire prevention nanometer insulating layer cladding inner sandwich layer outer surface, the inner sheath cladding fire prevention nanometer insulating layer outer surface, oversheath cladding inner sheath outer surface, the oversheath is butyl rubber oversheath, the inner sheath includes the fire retardant mylar layer for coating setting successively from inside to outside, high silica fiber layer and ZA grades of PVC/ST5 type halogen-free flameproof poly (vinyl chloride) blend layers.The utility model solution existing power supply line poor fire, there are the security hidden troubles of damage rupture easy to aging.

Description

A kind of modified fire-fighting power supply line

Technical field

The utility model is related to electrical transmission technical field, more particularly to a kind of modified fire-fighting power supply line.

Background technology

The fire account for the first that electric wire reason causes in China's electrical fire, the aggrieved personnel in fire middle-high building How to escape is current project in the urgent need to address.Since the electric wire of common polyvinyl chloride is in a fire by flame combustion When release hydrogen chloride gas and halogen harmful substance, make the aggrieved personnel in fire have part be that burned electric wire is released It is burnt to death after hydrogen chloride gas and halogen the harmful substance asphyxia put, the aggrieved personnel in fire is made to cause " secondary disaster "；And it is existing Some power cords are especially the poor flame retardant properties of the dedicated fire-fighting power supply line of spare or fire-fighting, and fire-fighting power supply line cannot in fire Effective conveying function is kept, while so that power cord is generated security risk with long breakage easy to aging.

Utility model content

Therefore, for above-mentioned problem, the utility model proposes a kind of structure novel, flameproof effect is good, stable structure not Flimsy modified fire-fighting power supply line.

To solve this technical problem, the utility model takes following scheme：A kind of modified fire-fighting power supply line, including power supply Line ontology, the power cord ontology include oversheath, inner sheath, fire prevention nanometer insulating layer, inner sandwich layer, three pieces isolating pad, three Cushion collar and three conducting wires are divided into three cavitys inside the inner sandwich layer by three pieces isolating pad, and three cushion collars wrap respectively It covers three conducting wires and is arranged in respectively in three cavitys of inner sandwich layer, fire prevention nanometer insulating layer cladding inner sandwich layer outer surface, The inner sheath cladding fire prevention nanometer insulating layer outer surface, oversheath cladding inner sheath outer surface, the oversheath is fourth Base rubber outer protection set, the inner sheath include the fire retardant mylar layer for coating setting successively from inside to outside, high silica fiber layer With ZA grades of PVC/ST5 type halogen-free flameproof poly (vinyl chloride) blend layers.

Further to improve, the isolating pad is PE isolating pads.

Further to improve, the cushion collar is elasticity TPU cushion collars.

By using preceding solution, the utility model has the beneficial effects that：Made by the way that butyl rubber oversheath is arranged Power cord ontology tensile strength is high, elasticity and elongation percentage are big, water resistant and against weather are good, colod-application can prolong the service life, lead to Setting inner sheath is crossed, since high silica fiber layer high temperature resistant is up to 1500 degrees Celsius, in 1300 degrees Celsius or more high temperature and burning Under do not prolong combustion can be effectively fire-retardant, while high silica fiber layer and ZA grades of PVC/ST5 type halogen-free flameproof poly (vinyl chloride) blend floor heights Temperature burning generates the fire resisting environment that solidfied material can reach 1200 degrees Celsius, makes power cord sheet by setting fire prevention nanometer insulating layer Body realizes that third layer fire prevention, fire prevention nanometer insulating layer can reach 1400 degrees Celsius of high temperature resistant grade, buffering also set up outside conducting wire It is even more the protection enhanced to conducting wire that set and isolating pad are arranged in inner sandwich layer again, and overall structure is novel, flameproof effect is good, structure is steady Surely it is hardly damaged, it can wide popularization and application.

Description of the drawings

Fig. 1 is the cross section structure schematic diagram of the utility model embodiment.

Specific implementation mode

The utility model is further illustrated in conjunction with the drawings and specific embodiments.

With reference to figure 1, the modified fire-fighting power supply line of preferred the utility model, including power cord ontology, the power cord Ontology includes oversheath 1, inner sheath 2, fire prevention nanometer insulating layer 3, inner sandwich layer 4,5, three cushion collars 6 of three pieces isolating pad and three Conducting wire 7 is divided into three cavitys inside the inner sandwich layer 4 by three pieces isolating pad 5, and three cushion collars 6 are respectively coated by three and lead Line 7 is simultaneously arranged in three cavitys of inner sandwich layer 4 respectively, and the fire prevention nanometer insulating layer 3 coats 4 outer surface of inner sandwich layer, described 3 outer surface of the cladding fire prevention nanometer of inner sheath 2 insulating layer, the oversheath 1 coat 2 outer surface of inner sheath, and the oversheath 1 is fourth Base rubber outer protection set, the inner sheath 2 include fire retardant mylar layer 21, the high silica fiber for coating setting successively from inside to outside 22 and ZA grades of PVC/ST5 type halogen-free flameproof poly (vinyl chloride) blends layer 23 of layer, the isolating pad 5 are PE isolating pads, the buffering Set 6 is elasticity TPU cushion collars, and the fire prevention nanometer insulating layer 3 is Chinese Patent Application No.：201310655799.3 disclosed Fire resistant nanometer insulation meterial is made.

The utility model makes high power cord ontology tensile strength, elasticity and elongation percentage by the way that butyl rubber oversheath is arranged Greatly, water resistant and against weather are good, colod-application can prolong the service life, by the way that inner sheath is arranged, due to high silica fiber layer high temperature resistant Up to 1500 degrees Celsius, not prolonging combustion under 1300 degrees Celsius or more high temperature and burning can be effectively fire-retardant, while high silica fiber layer Solidfied materials, which are generated, with ZA grades of PVC/ST5 type halogen-free flameproof poly (vinyl chloride) blend layer high-temp combustions can reach 1200 degrees Celsius resistance to Fire environment makes power cord ontology realize that third layer fire prevention, fire prevention nanometer insulating layer are reachable by setting fire prevention nanometer insulating layer To 1400 degrees Celsius of high temperature resistant grade, it is even more to enhance pair that cushion collar and isolating pad are also set up outside conducting wire and is arranged in inner sandwich layer again The protection of conducting wire, overall structure is novel, flameproof effect is good, stable structure is hardly damaged, can wide popularization and application.

Although specifically showing and describing the utility model in conjunction with preferred embodiment, those skilled in the art answers This is understood, in the spirit and scope for not departing from the utility model defined by the appended claims, in form and details On the utility model can be made a variety of changes, be the scope of protection of the utility model.

Claims (3)

1. a kind of modified fire-fighting power supply line, including power cord ontology, it is characterised in that：The power cord ontology includes outer shield Set, inner sheath, fire prevention nanometer insulating layer, inner sandwich layer, three pieces isolating pad, three cushion collars and three conducting wires, in the inner sandwich layer Portion is divided into three cavitys by three pieces isolating pad, and three cushion collars are respectively coated by three conducting wires and are arranged in inner sandwich layer respectively In three cavitys, fire prevention nanometer insulating layer cladding inner sandwich layer outer surface, the inner sheath cladding is prevented fires outside nanometer insulating layer Surface, oversheath cladding inner sheath outer surface, the oversheath is butyl rubber oversheath, and the inner sheath includes by interior To the fire retardant mylar layer, high silica fiber layer and ZA grades of PVC/ST5 type halogen-free flameproof polyvinyl chloride for coating setting successively outside Mixture layer.

2. modified fire-fighting power supply line according to claim 1, it is characterised in that：The isolating pad is PE isolating pads.

3. modified fire-fighting power supply line according to claim 1, it is characterised in that：The cushion collar is elasticity TPU bufferings Set.