CN201489865U

CN201489865U - Novel parallel cluster overhead insulated cable

Info

Publication number: CN201489865U
Application number: CN 200920186850
Authority: CN
Inventors: 居盛文
Original assignee: Anhui Jianghuai Cable Group Co Ltd
Current assignee: Anhui Jianghuai Cable Group Co Ltd
Priority date: 2009-08-07
Filing date: 2009-08-07
Publication date: 2010-05-26
Anticipated expiration: 2019-08-07

Abstract

The utility model discloses a novel parallel cluster overhead insulated cable, which comprises an insulated core. The insulated core consists of a conductor and an inner layer insulator extruded outside the conductor; the cable adopts a two-core or four-core parallel structure; an outer layer insulator is extruded outside the insulated cores respectively; and interconnected connecting ribs are arranged between the outer layer insulators of every two adjacent insulated cores. The parallel cluster overhead insulated cable which adopts a double-layer insulating structure can radically solve the problem of abandonment and waste due to uneven insulating thickness or naked conductor, and can effectively avoid the phenomena of electric larceny, electricity leakage and the like in the aspect of technical measures; and meanwhile, because the spatial corridor occupied by the line is small, the cable is not easy to be affected by external environment factors, can reduce the body shock accidents in the country, and solves the safety management problem of '4 arrive door' service of rural power supply.

Description

The novel parallel bunched aerial insulated cable

Technical field:

The utility model relates to a kind of novel parallel bunched aerial insulated cable, belongs to technical field of electric wires and cables.

Background technology:

The manufacturer of common parallel bunched aerial insulated cable is existing many, and production technology is also ripe relatively.But because the conductor of common parallel bunched aerial insulated cable requires to adopt hard circle aluminum steel and hard circular copper wire, and all should extrude by plsitive mold in the production process insulation, and because the internal stress of stranded core and laying tension inhomogeneous very easily caused the inhomogeneous of insulation thickness, serious meeting causes conductor exposed, and parallel bunched aerial insulated cable generally is two core run-in indexs or four-core run-in index, so in case quality problems occur, the wastage that causes is generally all bigger.

Summary of the invention:

For overcoming the defective of prior art, the purpose of this utility model is to provide a kind of parallel bunched aerial insulated cable, solved in the production process because of insulation eccentricity or the exposed a large amount of wasting phenomenons that cause of conductor, prevent core short circuit problem in the erection process, and the characteristics that have weather-resistant, line loss are little, construction is simple, the duration is short, can effectively prevent phenomenons such as stealing, electric leakage, have fail safe preferably.

The utility model technical solution problem adopts following technical scheme:

Conductor again with two cores or the parallel placement of four-core insulated wire cores, again through extruding outer layer insulation and dowel, becomes novel parallel bundle assembled aerial cable earlier through extruding primary insulation, and this cable can effectively be avoided because of insulation eccentricity or exposed the scrapping of causing of conductor.The design feature of this novel parallel bunched cable is that conductor extrudes primary insulation earlier, again will be through two cores of extruded insulation or four-core insulated wire cores as the unwrapping wire core, the parallel extrusion die that passes, extrude the dowel between outer layer insulation and the outer layer insulation again, outer layer insulation and dowel are integral structure.Because what adopt is the double-layer insulating structure form, its insulation thickness is designed to: primary insulation thickness is 60% of nominal thickness, and outer layer insulation thickness and dowel are; 80% of nominal thickness, and outer layer insulation should adopt plsitive mold production, guarantees to attach closely between two insulating barriers.

Compared with the prior art, the beneficial effects of the utility model are embodied in:

1, the utility model is the parallel bunched aerial insulated cable that adopts double-layer insulating structure, can fundamentally solve inhomogeneous or conductor because of insulation thickness exposed cause scrap, wasting phenomenon;

2, compare with common insulated aerial cable, its reactance reduces, and susceptance increases, and has obviously reduced the line voltage distribution loss; Compare with stranded formula boundling line, setting up on the circuit of equal length, can shorten the lead electrical distance, reduced the power loss and the lead cost of lead self, it is few also to have production process simultaneously, simple technological process and other advantages;

3, easy construction, duration weak point, operating expenses and gold utensil are saved, do not need cross-arm and porcelain spare, owing to set up lead and only need set up one, so construction volume reduces nearly 30% than normal, in cities and towns or economic relatively advanced housing-group zone, parallel Bundling conducting wire can be put along wall paper, reduces a large amount of shaft tower expenses;

4, comprehensive cost is lower, compares with the built on stilts plain conductor circuit of routine, and comprehensive cost remains basically stable, but operating cost and benefit at a specified future date have clear superiority;

5, can prevent phenomenons such as stealing, electric leakage effectively from the technical measures aspect, simultaneously because corridor, line holding space is little, be not subject to the external environment factor affecting, can reduce the rural area accident of human electric shock, solve the safety management difficult problem of rural power service " four to the family " service.

Description of drawings:

Fig. 1 is a structural representation of the present utility model; Fig. 2 is the structural representation of another embodiment of the utility model.

Number in the figure: 1 conductor, 2 primary insulations, 3 outer layer insulations, 4 dowels.

Below pass through embodiment, and the utility model is described in further detail in conjunction with the accompanying drawings.

Embodiment, non-limiting examples is as described below:

Embodiment 1: in conjunction with Fig. 1, the cable of present embodiment is two cored structures, conductor 1 adopts hard copper or duralumin conductor, primary insulation 2 can adopt polyvinyl chloride, polyethylene or crosslinked polyethylene according to concrete environment for use, and outer layer insulation 3 can be according to the different black mixtures that should adopt polyvinyl chloride, polyethylene or the crosslinked polyethylene of weather resistant for base of concrete environment for use with dowel 4.Dowel is in two to be thoroughly done away with on the circle center line connecting of edge core.In specifically being provided with, the insulation thickness of design primary insulation 2 is controlled at 60% of nominal thickness, and the insulation thickness of outer layer insulation 3 and dowel 4 is controlled at 80% of nominal thickness.After adopting double hyer insulation thickness, can effectively avoid causing because of insulation eccentricity, cracking or conductor are exposed etc. scrap, wasting phenomenon, further improved the useful life of product quality and product, the insulation thickness that has solved parallel bunched aerial insulated cable is produced a uneven difficult problem, reduced the production cost that enterprise produces this kind cable, for enterprise has created economic benefit better.

Embodiment 2: in conjunction with Fig. 2, the cable of present embodiment is a quadrature arrangement, being in adjacent two of cable centre position thoroughly does away with between dowel between the edge cores and its outer layer insulation and becomes outer cut connection, can make whole cable form the cross section and be approximate foursquare structure, applicable different laying occasion, all the other are with embodiment 1.

Claims

1. novel parallel bunched aerial insulated cable, comprise insulated wire cores, described insulated wire cores is made of conductor (1) and the primary insulation (2) that extrudes outside conductor, it is characterized in that, described cable adopts two cores or four-core parallel construction, each insulated wire cores is extruded with outer layer insulation (3) outward respectively, and thoroughly does away with adjacent per two and between the outer layer insulation (3) of edge cores dowel (4) to be set and to be connected to each other.

2. novel parallel bunched aerial insulated cable according to claim 1 is characterized in that, described dowel (4) and described outer layer insulation (3) are extruded structure for one.