CN202145391U

CN202145391U - Bearing-type soft low-voltage power cable

Info

Publication number: CN202145391U
Application number: CN201120273760U
Authority: CN
Inventors: 杨海深; 乔家鑫; 宋亚红
Original assignee: TANGSHAN HAIFENG CABLE CO Ltd
Current assignee: TANGSHAN HAIFENG CABLE CO Ltd
Priority date: 2011-07-30
Filing date: 2011-07-30
Publication date: 2012-02-15
Anticipated expiration: 2021-07-30

Abstract

The utility model relates to a low-voltage power cable, in particular to a bearing-type soft low-voltage power cable. The low-voltage power cable comprises insulation wire cores consisting of conductors and outer insulation layers thereof, a cable core formed by the plurality of insulation wire cores, cable beltings coated outside the cable core and an outer sheath extruded on the outer layers of the cable beltings, wherein, tensile bearing element aramids, which are novel tensile or bearing elements and have high tensile and good soft properties, are filled among the insulation wire cores, causes no damage to the insulation or the sheath, and omits both cable fillings and an inner sheath of the cable. The low-voltage power cable has the advantages of simpler structure, convenience in manufacture, greatly reduced weight, reduced outer diameter to the utmost, improved softness, and guaranteed bearing ability.

Description

The soft lv power cable of bearing type

Technical field

The utility model relates to lv power cable, specifically is the soft lv power cable of a kind of bearing type.

Background technology

According to the regulation among the standard GB/T12706-2008 (IEC60502-2004), lv power cable has and fixedly lays and move and lay.But its tension or load bearing element have only thicker wire and two kinds on silk steel wire; The load-bearing effect of these two kinds of load bearing elements can be said to be passable; But its soft type is relatively poor, and the inferior position of steel wire has just displayed in the time of more or frequent as if bend ratio, and fracture possibly will occur at reciprocal situation lower pulling force element steel wire; So just guaranteed not load-bearing, insulation of the steel wire that also might rupture handle or sheath puncture and cause the accident.

The utility model content

The utility model is to the above-mentioned defective of lv power cable, and a kind of simple in structure, bearing type softness lv power cable of avoiding being strengthened by steel wire the adverse consequences that causes is provided.

The technical scheme that the utility model adopts is: the soft lv power cable of a kind of bearing type; The cable core that comprises the insulated wire cores that constitutes by conductor and outer layer insulation thereof, forms by some insulated cores, be wrapped in the outside tape for cables of cable core, be extruded in the outer field oversheath of tape for cables, be filled with tension load bearing element aramid fiber between the said insulated wire cores.Aramid fiber is very high and very soft novel tension or a load bearing element of a kind of tensile strength; And can not cause damage to insulation or sheath yet; Add load bearing element to filling that cable can be saved in this place, can also save the inner sheath of cable, the oversheath that only keeps cable gets final product.

Compared with prior art, the utility model is relatively simple for structure, and is easily manufactured, greatly reduces the weight of cable, also largely reduced the external diameter of cable, so just improved the soft type of cable, and can guarantee the load-bearing of cable.

Description of drawings

Fig. 1 is the utility model embodiment cross section structure sketch map.

Among the figure: conductor 1, outer layer insulation 2, load bearing element 3, tape for cables 4, oversheath 5.

Embodiment

Below in conjunction with embodiment the utility model is described further.

Referring to Fig. 1, the soft lv power cable of the described this bearing type of present embodiment, the conductor 1 of its insulated wire cores adopts the 5th type of flexible conductor structure, and the outer layer insulation 2 of conductor 1 is for extruding plastic, and outer layer insulation 2 closely is extruded in and prevents mutual slip on the conductor 1.It between the insulated wire cores load bearing element 3; Form by the load-bearing material aramid fiber; This load bearing element 3 can substitute filling interpolation gap and get final product when the cable stranding, but the filling size of load bearing element 3 will be calculated gained according to the load-bearing weight of client's needs, also will consider the filling space of cable core.Cable core is made up of four insulated cores, and outer wrapped tape for cables 4, tape for cables 4 are by wrapped material non-woven fabric or polyester film is wrapped forms, and this part is for cable core is packed tightly.The tape for cables 4 outer oversheaths 5 that extrude, oversheath 5 adopts and extrudes plastic, and this part should closely be extruded on the cable core, to guarantee the rounding of cable.

The utility model has saved the inner covering and the steel wire part of cable, thus greatly reduce the cable weight and the outside diameter of cable, thus feasible good flexibility and bearing or the pull resistance of the utlity model has.

Claims

1. the soft lv power cable of a bearing type; The cable core that comprises the insulated wire cores that constitutes by conductor and outer layer insulation thereof, forms by some insulated cores, be wrapped in the outside tape for cables of cable core, be extruded in the outer field oversheath of tape for cables; It is characterized in that, be filled with tension load bearing element aramid fiber between the said insulated wire cores.