CN204178780U - A kind of subway water-proof cable - Google Patents

Abstract

The utility model relates to a kind of subway water-proof cable, the core of described water-proof cable is conductor, described conductor is copper conductor or aluminium conductor, at the outer layer covers halogen-free and low-smoke flame-retardant polyolefin insulating barrier of conductor, copper strip shielding layer in the outer wrap of halogen-free and low-smoke flame-retardant polyolefin insulating barrier, a kind of waterstop in the outer wrap of copper strip shielding layer, halogen-free and low-smoke flame-retardant polyolefin sheathed in the outer wrap of waterstop.The utility model is rational in infrastructure, and manufacturing process and technological process advanced person, meet correlation standard requirement, meet consumers' demand, its insulation resistivity >=1015 Ω cm, can successfully pass water permeabillity test, has superpower proof voltage ability.

Description

A kind of subway water-proof cable

Technical field

The utility model belongs to cable preparation field, is specifically related to a kind of subway water-proof cable.

Background technology

The demand of water-proof cable in recent years in heavy construction is increasing, water-proof cable must be used under the environment of humidity, ponding, the cable used in the ocean development project of coastal area all has waterproof requirement, and the cable used in metro project also has waterproof requirement.In the analysis in the past to cable quality accident, the intake consequence that causes of cable more and more causes the attention of cable manufacturer, requires also more and more higher to the water resistance of cable.

Summary of the invention

The utility model overcomes the deficiencies in the prior art, propose a kind of subway water-proof cable, the described construction of cable is reasonable, manufacturing process and technological process advanced person, correlation standard requirement can be met, meet consumers' demand, its insulation resistivity >=1015 Ω cm, can water permeabillity test be successfully passed, there is superpower proof voltage ability.

the utility modeltechnical scheme be:

A kind of subway water-proof cable, the core of described water-proof cable is conductor, described conductor is copper conductor or aluminium conductor, at the outer layer covers halogen-free and low-smoke flame-retardant polyolefin insulating barrier of conductor, copper strip shielding layer in the outer wrap of halogen-free and low-smoke flame-retardant polyolefin insulating barrier, a kind of waterstop in the outer wrap of copper strip shielding layer, halogen-free and low-smoke flame-retardant polyolefin sheathed in the outer wrap of waterstop.

the beneficial effects of the utility model are:

The utility model is rational in infrastructure, and manufacturing process and technological process advanced person, can meet correlation standard requirement, meet consumers' demand, its insulation resistivity >=1015 Ω cm, can successfully pass water permeabillity test, has superpower proof voltage ability.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, the utility model is further illustrated.

Fig. 1 is the utility model cross section structure schematic diagram;

In figure: 1, conductor; 2, halogen-free and low-smoke flame-retardant polyolefin insulating barrier; 3, copper strip shielding layer; 4, waterstop; 5, halogen-free and low-smoke flame-retardant polyolefin sheathed.

Embodiment

Shown in Figure 1, core of the present utility model is conductor 1, described conductor 1 is copper conductor or aluminium conductor, at the outer layer covers halogen-free and low-smoke flame-retardant polyolefin insulating barrier 2 of conductor 1, halogen-free and low-smoke flame-retardant polyolefin insulating barrier 2 makes primarily of polyolefine material, copper strip shielding layer 3 in the outer wrap of halogen-free and low-smoke flame-retardant polyolefin insulating barrier 2, copper strip shielding layer 3 forms screen after being wound around by copper strips, a kind of waterstop 4 in the outer wrap of copper strip shielding layer 3, waterstop 4 is made up of one deck watertight material, halogen-free and low-smoke flame-retardant polyolefin sheathed 5 in the outer wrap of waterstop 4.Subway construction is in the gold period of development.While iron base Facilities Construction in large quantities, water-proof cable demand also increases.Meanwhile, user also more and more payes attention to for the requirement of cable waterproof performance, and therefore, the utility model can be enterprise and creates considerable economic benefit.The described construction of cable is reasonable, and manufacturing process and technological process advanced person, can meet correlation standard requirement, meet consumers' demand, its insulation resistivity >=1015 Ω cm, can successfully pass water permeabillity test, has the proof voltage ability of superpower 1800V.

Claims (1)

1. a subway water-proof cable, it is characterized in that, the core of described water-proof cable is conductor, described conductor is copper conductor or aluminium conductor, at the outer layer covers halogen-free and low-smoke flame-retardant polyolefin insulating barrier of conductor, copper strip shielding layer in the outer wrap of halogen-free and low-smoke flame-retardant polyolefin insulating barrier, a kind of waterstop in the outer wrap of copper strip shielding layer, halogen-free and low-smoke flame-retardant polyolefin sheathed in the outer wrap of waterstop.