CN2349642Y

CN2349642Y - Branch wire cable

Info

Publication number: CN2349642Y
Application number: CN 98225275
Authority: CN
Inventors: 奚雪金; 吴川中
Original assignee: CHANGZHOU DONGFANG SPECIAL CABLE EQUIPMENT FACTORY
Current assignee: CHANGZHOU DONGFANG SPECIAL CABLE EQUIPMENT FACTORY
Priority date: 1998-10-06
Filing date: 1998-10-06
Publication date: 1999-11-17
Anticipated expiration: 2008-10-06

Abstract

A branch electric wire cable for electric line distribution features that several wires are composed of metallic wires and have protecting layer and insulating layer, several wires are arbitrarily chosen at multiple positions in main line at any distance and led out or led in branch wires via sealing head, the cross-sectional areas of conductors at head and tail of main line and the number of cores of insulated wire cores can be same or increased or decreased, fixing parts are arranged at branches of main line and branch wires, and the main line and branch wires are combined without contact.

Description

The branch wire cable

The novel electric wire field that relates to of this usefulness belongs to the electric wiring distribution specifically and replaces the electric wire of bus duct distribution.

Present illuminating line route used in skyscraper, tunnel, subway, if meet when needing branch, branched line and backbone adopt extrusion molding, so the whole cable contact behind the extrusion molding is many, because electric terminal increases spark hidden danger more, should not use for explosion-proof occasion, can not satisfy the designing requirement of collective and distributive type, DCS control system simultaneously, can't guarantee the reliability of signal transmission.

It is as a whole that the purpose of this utility model provides a kind of breakout cable and backbone of electric wire electric wiring distribution, can once form at production line, the bifurcation contactless of backbone and branch line, backbone and branch line are a complete integrally-built branch wire cable.

For finishing above-mentioned technical scheme that goal of the invention is taked: in the backbone of electric wire, establish many metallic conductors and form corresponding some leads, and establish sheath and insulating barrier, the many places any distance is got some leads arbitrarily and is drawn offset by end socket in its backbone, and in backbone, continue to extend, the insulating core number of backbone head and afterbody is identical, its offset is provided with sheath and insulating barrier equally, and the bifurcation of backbone and branch line is provided with fixed body respectively on lead.The branch line that above-mentioned backbone is drawn in variant distance can make backbone insulating core number reduce, and backbone is provided with the insulating core number at any distance contactless by end socket and introduces the increase that branch line forms the insulating core number of backbone simultaneously.

The utility model can replace expensive bus duct distribution in the application of skyscraper electrical power distribution, in the tunnel, electric, the illuminating line of subway can reduce distribution box, directly be connected to load, use under the explosion-proof occasion and can reduce the hidden danger that electric terminal causes spark, has the intrinsic safety performance, especially satisfy collective and distributive type, DCS Control System Design requirement, make the more reliable and safety of signal transmission.

The utility model embodiment is described in detail in conjunction with the accompanying drawings.

Fig. 1 is equal to core table structure figure for the utility model branch trunk lead;

Fig. 2 is that the utility model backbone conductor cores number reduces structure chart.

According to Fig. 1, establishing many metallic conductors 6 in the backbone 1 forms corresponding some leads 4 and establishes sheath and insulating barrier 5, but the many places any distance of backbone 1 and get some leads 4 arbitrarily and draw offset 4 by end socket 3 simultaneously, this lead 4 continues to extend in backbone 1, the insulating core number of the head of backbone 1 and afterbody is identical, cross-sectional area of conductor is long-pending identical, the offset 4 that is stretched out is provided with sheath and insulating barrier 5 equally, backbone 1 is provided with fixed body 7 respectively with a place of branch line 2 on lead 4, make whole wire cable solid and reliable.

Example example two: as shown in Figure 2, backbone 1 can be drawn branch line 2 in different distances, and its lead 4 no longer continues to extend in backbone 1, and the insulating core number of backbone 1 is by ashamed minimizing, and the sectional area of conductor reduces equally.Other technologies are all same as the previously described embodiments.

Embodiment three: backbone 1 is provided with the insulating core number at any distance contactless by end socket 3 and introduces branch line 2, makes the insulating core number of backbone 1 increase the corresponding increase in the cross section of conductor.

Claims

1; a kind of lead of forming by metallic conductor; the branch wire cable that protective layer and insulating barrier constitute; it is characterized in that establishing in the backbone (1) many metallic conductors (6) forms corresponding some leads (4) and establishes sheath and insulating barrier (5); the many places any distance is got some leads (4) arbitrarily and is drawn offset (4) and continuation extension in backbone (1) by end socket (3) in the above-mentioned backbone (1); the insulated wire cores core number of backbone (1) head and afterbody is identical; its offset (4) is provided with sheath and insulating barrier (5) equally, and backbone (1) is provided with fixture (7) respectively with the bifurcation of branch line (2) on lead (4).

2, branch wire cable according to claim 1 is characterized in that branch line (2) back that backbone (1) is drawn in variant distance forms the minimizing of backbone (1) insulating core number.

3, branch wire cable according to claim 1 is characterized in that backbone (1) is provided with the insulating core number at any distance contactless by end socket (3) and introduces the insulating core number increase that branch line (2) forms backbone (1).