CN200990258Y

CN200990258Y - High-temperature resisting cable

Info

Publication number: CN200990258Y
Application number: CN 200620068169
Authority: CN
Inventors: 梁玉谦
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-11-24
Filing date: 2006-11-24
Publication date: 2007-12-12
Anticipated expiration: 2016-11-24

Abstract

A novel high temperature cable belongs to the cable technical field. The cable conductor adopts tinning copper wires; the conductor surface insulator is Teflon, which is shielded by a copper strip and is provided with a current lead; the wrapping material is a glass ribbon; the filling material is a rope; an inner jacket adopts Teflon-ethene copolymer; the outer is provided with a steel strip conduit and a silicone rubber outer jacket. The utility model has the advantages of stronger high temperature resistant, voltage resistance, corrosion-resistant, fire-retardant and anti-jamming, and satisfies the performance requirements of high temperature cable. A transmitting electricity system with 450/750V rating voltage and below can be used in a power supply cable or an electric equipment connection line. The product mainly applies to power factories, transmission and distribution engineering, petrochemical, metallurgy, iron and steel, high floor buildings, and other fields.

Description

The novel fire resistant cable

Technical field

The utility model relates to a kind of novel fire resistant construction of cable, belongs to the cable technology field.

Background technology

Existing cable kind is a lot, mainly is made of insulating barrier that comprises conductor and conductive surface and oversheath etc., and its resistance to elevated temperatures is poor.Along with science and technology and rapid development of economy, some industries are more and more higher to the high temperature resistant requirement of cable, used cables of industry such as the energy, petrochemical industry, metallurgy, electric power particularly, because it is the circuit of at high temperature working for a long time is more, therefore, high to the resistance to elevated temperatures requirement of cable.Past, of common occurrence because of the situation of electric wire non-refractory breaking out of fire accident, cause very big loss for country, business property, also brought very big harm for the people's life security.In the construction of heavy constructions such as modernized power station, metallurgy, chemical industry, all need with a large amount of cables, and the high temperature-resistant cable of serviceability excellence just may be guaranteed engineering construction quality and produce the safety of using.In addition, since the outburst of SARS epidemic situation, the sales volume of sterilization household electrical appliances sharply rises, and is example with microwave oven and disinfection cabinet, is not only the kitchen appliance of city common people family, now also forward rural area diffusion.The use of high-power household electrical appliance has also proposed resistant to elevated temperatures requirement to the electric wire of institute's adapted, and common electric wire is because security incident appears in non-refractory easily.So, research and develop out the fire resistant electric wire cable of use excellent performance, satisfy the demand in market, be a urgent task of cable scientific research institution and manufacturing enterprise.

The utility model content

The purpose of this utility model is to overcome the deficiency that common cable exists, and a kind of have high temperature resistant, good flame retardation effect, good insulation preformance, puncture voltage height, heat-resistance index is big, corrosion-resistant, interference free performance is good novel fire resistant cable are provided.

The purpose of this utility model is to realize like this, the novel fire resistant cable, the insulating barrier and the oversheath that comprise conductor and conductive surface, it is characterized in that extruding the teflon insulation layer at the tinned copper wire conductive surface makes cable core, cable core is provided with inside and outside layer glass silk ribbon lapping layer and inside and outside sheath, be provided with copper strips screen and drainage thread between layer glass silk ribbon lapping layer, inner sheath is arranged on the glass outer silk ribbon lapping layer, is provided with the steel-tape armouring layer between the inside and outside sheath.

Be provided with the glass fiber inserts in the described cable core.Described drainage thread is four, is uniformly set between copper strips screen and the glass outer silk ribbon lapping layer.The material of inner sheath is a tetrafluoroethylene-ethylene copolymer, is extruded in glass outer silk ribbon lapping layer outer surface.The material of oversheath is a silicon rubber, is extruded in steel-tape armouring layer outer surface.

The utility model is rational in infrastructure simple, and the manufacturing is easy, cost is low.Cable has less insulation dielectric loss and good shielding properties, and its shielding transfer impedance is not more than 1 Ω/m, and has good heat aging property in the 100MHz scope; Cable has stronger resistance to elevated temperatures and insulation property, fire resistance, decay resistance; Construction of cable compactness, rounding, safe in utilization, can satisfy the performance requirement with cable of modernization project in building fully, the transmission line that can be widely used under the hot environment in the construction of heavy constructions such as power plant, transmission and transformation engineering, petrochemical industry, metallurgy, iron and steel, skyscraper is installed.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Among the figure: 1 conductor, 2 insulating barriers, 3 glass tape lapping layers, 4 inserts, 5 screens, 6 drainage threads, 7 glass tape lapping layers, 8 inner sheaths, 9 armours, 10 oversheaths

Embodiment

Employing extrudes the core stranding that teflon insulation layer 2 constitutes by the surface of tinned copper wire conductor 1, glass fiber rope 3 is filled, and glass tape 4 is wrapped, adds copper strips screen 5 again, after copper strips screen 5 peripheries are evenly laid four copper drainage threads 6, wrapped again one deck glass tape 7.Crowded tetrafluoroethylene-ethylene copolymer is made inner sheath 8, steel-tape armouring 9, and crowded silastic material is made oversheath 10.

Claims

1, a kind of novel fire resistant cable, the insulating barrier and the oversheath that comprise conductor and conductive surface, it is characterized in that extruding the teflon insulation layer at the tinned copper wire conductive surface makes cable core, cable core is provided with inside and outside layer glass silk ribbon lapping layer and inside and outside sheath, between layer glass silk ribbon lapping layer, be provided with copper strips screen and drainage thread, inner sheath is arranged on the glass outer silk ribbon lapping layer, is provided with the steel-tape armouring layer between the inside and outside sheath.

2, novel fire resistant cable according to claim 1 is characterized in that being provided with in the described cable core glass fiber inserts.

3, novel fire resistant cable according to claim 1 is characterized in that described drainage thread is four, is uniformly set between copper strips screen and the glass outer silk ribbon lapping layer.

4, novel fire resistant cable according to claim 1 is characterized in that the material of described inner sheath is a tetrafluoroethylene-ethylene copolymer, is extruded in glass outer silk ribbon lapping layer outer surface.

5, novel fire resistant cable according to claim 1 is characterized in that the material of described oversheath is a silicon rubber, is extruded in steel-tape armouring layer outer surface.