CN203055537U

CN203055537U - Waterproof moistureproof power cable

Info

Publication number: CN203055537U
Application number: CN 201320035629
Authority: CN
Inventors: 冯钰�; 晏政; 裴静娟
Original assignee: JIANGSU TIANDILONG CABLE CO Ltd
Current assignee: JIANGSU TIANDILONG CABLE CO Ltd
Priority date: 2013-01-24
Filing date: 2013-01-24
Publication date: 2013-07-10
Anticipated expiration: 2023-01-24

Abstract

A Waterproof moistureproof power cable is disclosed. The cable is composed of three cable cores, a waterproof packing layer (5), a steel wire shielding layer (6) and an outer sheath (7), which are successively disposed from inside to outside, wherein the three cable cores are parallelly arranged into bundles. The cable cores comprise a rare earth high iron-aluminum alloy conductor (1), an insulating layer (2), an aluminum plastic band (3) and a copper band shielding layer (4) which are successively arranged from inside to outside. By the adoption of the cable provided by the utility model, water or steam can be prevented from entering the inside of the cable, and the damage of water or steam to electrical conductivity and safety of cable conductors can be prevented.

Description

A kind of moistureproof power cable that blocks water

Technical field

The utility model relates to the power cable technical field, especially relates to a kind of moistureproof power cable that can block water.

Background technology

Power cable is in the long-time running process, water inlet more and more becomes the potential risk that influences cable running safety, in case after the cable water inlet, will cause corrosion of metals such as steel band, copper strips, water tree aging phenomenon under effect of electric field, can take place in decreasing insulating, cause cable breakdown at last, even blast is hurted sb.'s feelings etc.

The existing water-proof cable of existing market is when cable laying and after laying, when cable bad takes place and cable joint handle under the situation such as bad, water or aqueous vapor are entered in the cable, therefore need the better power cable of a kind of water resistance.

The utility model content

At the problems referred to above that prior art exists, the applicant provides a kind of moistureproof power cable that blocks water.This cable can stop water or aqueous vapor to enter cable inside, and anti-sealing or aqueous vapor produce harm to conductivity and the fail safe of cable conductor.

The technical solution of the utility model is as follows:

A kind of moistureproof power cable that blocks water, described cable are followed successively by cable core, waterproofing type packed layer (5), steel wire screen (6) and the oversheath (7) of three bunchys that are arranged in parallel from inside to outside; Described cable core is followed successively by rare earth high ferro aluminium alloy conductor (1), insulating barrier (2), plastic-aluminum band (3) and copper strips screen (4) from inside to outside.Described rare earth high ferro aluminium alloy conductor (1) is regular stranded, and its lay ratio is from inside to outside deferred to " 7 add 2 " rule, is followed successively by 7,9,11 ...

The utility model beneficial technical effects is:

The conductor of this cable adopts rare earth high ferro aluminum alloy materials, and this aluminum alloy materials has electrical property, mechanical performance, switching performance and decay resistance preferably; Insulating barrier arranges the wrapped coating layer of plastic-aluminum band outward; when the fashionable plastic-aluminum band of water logging can reach isolation effect; the formation dam that blocks water; stop moisture further to permeate; reach the purpose of protection cable; avoid occurring guaranteeing cable safe operation in the expected time of arrival because of problems such as the oxidation that occurs short circuit and conductor after the cable immersion and corrosion, promoted the market competition advantage of enterprise product simultaneously.The block-water performance of waterproofing type packed layer is strong, can not flow in cable after making water or aqueous vapor enter cable, has the humidity resistance that well blocks water, and can improve the corrosion resistance of cable under water environment, thereby guarantees durability and the conductivity of cable conductor.

Description of drawings

Fig. 1 is the structural representation of the moistureproof power cable that originally blocks water.

Embodiment

Below in conjunction with accompanying drawing, the utility model is specifically described.

This cable inside is three and is arranged in parallel, is close to and form a branch of cable core, and described cable core is followed successively by rare earth high ferro aluminium alloy conductor 1, the insulating barrier 2 that extrudes, wrapped plastic-aluminum band 3 and copper strips screen 4 from inside to outside.Described rare earth high ferro aluminium alloy conductor 1 is regular stranded, and its lay ratio is from inside to outside deferred to " 7 add 2 " rule, is followed successively by 7,9,11 ...Described insulating barrier 2 can be selected 125 ℃ of irradiated crosslinking low-smoke and halogen-free flame retardant oil resistant polyolefin for use.

Three cable core outsides are close to cable core and are provided with waterproofing type packed layer 5, outside it steel wire screen 6 are set again, extrude one deck oversheath 7 at last.Described plastic-aluminum band 3 and waterproofing type packed layer 5 play the main moisture-proof role that blocks water, and described steel wire screen 6 can bring rigidity to cable, and slow down effects such as vibration that external force produces cable, extruding.

Water or aqueous vapor entered the back to the influence that cable produces when the utility model had mainly solved cable because of damage and joint, reduced consequent expense, and laid and also play the certain protection effect after the back cable sustains damage.

Claims

1. the moistureproof power cable that blocks water is characterized in that described cable is followed successively by the cable core of three bunchys that are arranged in parallel, waterproofing type packed layer (5), steel wire screen (6) and oversheath (7) from inside to outside;

Described cable core is followed successively by rare earth high ferro aluminium alloy conductor (1), insulating barrier (2), plastic-aluminum band (3) and copper strips screen (4) from inside to outside.

2. the moistureproof power cable that blocks water according to claim 1 is characterized in that described rare earth high ferro aluminium alloy conductor (1) for regular stranded, and its lay ratio is from inside to outside deferred to " 7 add 2 " rule, is followed successively by 7,9,11 ...