CN2087806U - Helical shielded anti-theft electric wire - Google Patents

Abstract

The utility model relates to a helical shielded anti-theft electric wire, comprising a core wire (namely a phase wire) and a zero line which is composed of a plurality of naked metal wires and a fiber wire. The zero line takes the core wire as an axle center and is helically wound on the core wire, and the outer layer of the zero line is covered with a sheathing insulating coat. The utility model can be used as an anti-theft wire and can also be used as a control line when the core wires are multiple.

Description

Helical shielded anti-theft electric wire

The utility model belongs to thief-proof electric wire.

Existing lead has following several form, and 1, the outer bread one deck rubber of naked aluminium or copper cash or plastic insulation.2, the screen that forms with the copper cash braiding.Find that by retrieval the patent No. is that 87102510 special purpose house-inlet cable for anti-electricity stealing is to belong to second kind of frame mode.The defective that can not exempt from below this kind house lead in exists, i.e. electricity filching person local damage insulating barrier and screen still can stealings, are leads because of screen can be looked at as.

Goal of the invention of the present utility model is: a kind of a kind of electric wire that prevents the electricity consumer stealing is provided.

This conductor structure is: having on the heart yearn of insulated hull, thoroughly doing away with fibrae marginatae row around a layer line by several plain conductors and, this row's coiling is as zero line, and the skin of zero line is the jacket insulation layer.When carrying out stealing as electricity filching person, skin row coiling must be cut off, be that zero line cuts off like this, just the supply line of electrical appliance opens circuit, therefore prevented the electricity filching person stealing.

That advantage of the present utility model is is simple in structure, easy for installation, be a kind of electric wire that effectively prevents stealing.

Set forth a most preferred embodiment below in conjunction with accompanying drawing:

Figure is the structure chart of the thief-proof electric wire of helical shield,

Wherein: the heart yearn of 1 tape insulation layer, 2 screens (zero line), 3 non-conductive fibres, 4 jacket insulation layers.

Present embodiment comprises: one or more heart yearn 1(of tape insulation skin is a phase line), by the multiply plain conductor and be added with one and thoroughly do away with the zero line (screen) 2 that fibrae marginatae 3 is formed, zero line 2 is that the axis spiral cast is on heart yearn 1 with heart yearn 1 at the skin of heart yearn.Outer bread one deck jacket insulation layer 4 of zero line 2.The heart yearn of this lead can be used as anti-electricity-theft electric wire when being one, many heart yearns can also be as control line.

Claims (1)

1, the thief-proof electric wire of a kind of helical shield, it comprises the heart yearn 1 that has insulating barrier, zero line 2, jacket insulation layer 4, it is characterized in that zero line thoroughly does away with by one or a few plain conductor and that fibrae marginatae line 3 is formed and with heart yearn 1 be the axle center spiral cast on heart yearn, jacket insulation layer 4 wraps naked outside zero line 2.

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