CN2554774Y

CN2554774Y - Full water-proof cross-linked cable

Info

Publication number: CN2554774Y
Application number: CN 02268407
Authority: CN
Inventors: 乔新霞; 孙淑芳; 梁万明; 范维安; 方建勇
Original assignee: Luneng Taishan Electric Cable Co Ltd Shandong Prov
Current assignee: Tebian Electric Shandong Luneng Taishan Cable Co., Ltd.
Priority date: 2002-07-15
Filing date: 2002-07-15
Publication date: 2003-06-04
Anticipated expiration: 2012-07-15

Abstract

A novel fully water blocking cross-linked cable. The utility model can be a single core structure, or a three-core structure. The water blocking conducting bodies (1 and <1>) used by the single core structure and the three-core structure adopt the mixed dynamic water blocking technology of water blocking powder (14) and water blocking gauze (15), the phenomena that the powder attachment is difficult when the water blocking conducting body only adopts the water blocking powder (14), the outer diameter of the conducting body is enlarged or the skipped thread when the water blocking gauze (15) is adopted only, the surface of the conducting body is not smooth, the conducting body outer diameter is enlarged, and the electrical property is unsteady are avoided, the utility model has the advantages that the conducting body is complete, the surface is smooth, the outer diameter is not enlarged, the electrical property is steady, the processing is convenient, and the water blocking effect is good, and the utility model proves a completely new product for the wire and cable manufacture field.

Description

Novel water-proof cross-linked cable

The utility model relates to mechanical manufacturing field, exactly belongs to the electric wire mechanical manufacturing field.

At present, the mode of blocking water of existing cable structure has two kinds: a kind of is that static state blocks water, and a kind of is dynamically to block water.It generally is to fill some to refuse hydrate with the immersion of the passive form prevention of static state moisture that static state blocks water, in process of production, because the influence of the control instability of technology and the variation factors such as (expanding with heat and contract with cold) of environment for use makes and produces some little air gaps between water blocking layer and outer jacket or the core, block-water effect is undesirable, and cable cost of manufacture height, weight is big, complex procedures.Dynamically the stop water material therefor is met can expand the rapidly macromolecular compound of own vol several times (so that tens of times) of water for containing.This macromolecular compound is filled in forms such as water-proofing powder, water blocking yarn, waterstop, waterproofing rope and constitutes the complete system that blocks water of a cover between slits such as conductor, core, sheath; when moisture or moisture enter; the material that blocks water absorbs the moisture or the moisture of infiltration rapidly; the volume of itself is increased rapidly; thereby form one " dam "; water is blocked, prevent that moisture from continuing infiltration, reaches the purpose of protection cable.In dynamic stop water, with regard to the water-blocking conductor part, when whole employing water-proofing powder, big because of conductor core wire and stranded layer space, if attached powder difficulty by the attached powder of medium, easily causes insulation to be out of shape; When whole employing water blocking yarn, conductor diameter is increased and be prone to phenomenons such as hand pick, conductive surface are not bright and clean; When the waterstop of whole employings, conductor diameter increases, and phenomenons such as electrical property instability occur.

The purpose of this utility model provides the technology that dynamically blocks water that a kind of conductor adopts water-proofing powder, water blocking yarn to use with, can guarantee that conductor rounding, any surface finish, external diameter do not increase, electric performance stablity, easy to process, cost is low and have and vertically block water and the novel water-proof cross-linked cable of retaining tide radially.

The utility model can be single cored structure, also can be three-core structure, single cored structure be by water blocking layer in water-blocking conductor, internal shield, insulating barrier, outer shielding layer, the semiconductive, metal screen layer, the outer water blocking layer of semiconductive, radially moisture-proof layer and outer jacket are formed; Three-core structure is after thoroughly doing away with the edge core and the stranded stranding of gasket for packing that blocks water by three, the wrapped successively water blocking layer of skin, vertical wrap radially moisture-proof layer, extrude outer jacket and make, single cored structure and the used water-blocking conductor of three-core structure are to adopt water-proofing powder and water blocking yarn hybrid technology to make, can fill the space of strand system single line effectively, have good block-water effect, guarantee cable useful life.

Introduce the utility model in detail below in conjunction with accompanying drawing.

Fig. 1: the utility model list cored structure schematic diagram.

Fig. 2: the utility model water-blocking conductor schematic diagram.

Fig. 3: the utility model three-core structure schematic diagram.

Fig. 4: the utility model three-core structure insulated wire cores schematic diagram

Among the figure: 1,1 ' is water-blocking conductor, and 2,2 ' is internal shield, and 3,3 ' is insulating barrier, 4,4 ' outer shielding layer, 5,5 ' is water blocking layer in the semiconductive, 6,6 ' is metal screen layer, 7 is the outer water blocking layer of semiconductive, and 8,8 ' is moisture-proof layer radially, and 9,9 ' is outer jacket, 10 is insulated wire cores, 11 are the gasket for packing that blocks water, and 12 is water blocking layer, and 13 is many copper conductors or aluminum conductor, 14 is water-proofing powder, and 15 is water blocking yarn.

The utility model can be single cored structure, also can be three-core structure, single cored structure be by water blocking layer (5) in the water-blocking conductor (1), internal shield (2), insulating barrier (3), outer shielding layer (4), semiconductive, metal screen layer (6), the outer water blocking layer (7) of semiconductive, radially moisture-proof layer (8) and outer jacket (9) are formed; Three-core structure is to thoroughly do away with edge core (10) by three, gasket for packing (11) blocks water, water blocking layer (12), radially moisture-proof layer (8 ') is formed with outer jacket (9 '), behind the three eradication edge cores (10) and the stranded stranding of gasket for packing (11) that blocks water, skin is water blocking layer (12) successively, moisture-proof layer (8 ') radially, outer jacket (9 '), insulated wire cores (10) is by water-blocking conductor (1 '), internal shield (2 '), insulating barrier (3 '), outer shielding layer (4 '), semiconductive water blocking layer (5 '), metal screen layer (6 ') is formed, water-blocking conductor (1,1 ') be by many copper conductors or aluminum conductor (13), water-proofing powder (14), stranded the forming of water blocking yarn (15), between the heart yearn and first stranded layer, apply water blocking yarn (15), in the gap of many copper conductors or aluminum conductor (13), evenly fill water-proofing powder (14) (seeing Fig. 1 and Fig. 2) again.

Water-blocking conductor is moving owing to having adopted water-proofing powder, water blocking yarn to use with in the utility model structure The attitude technology that blocks water, attached powder difficulty when having avoided full powder, conductor diameter increases and hand pick during full yarn, Conductive surface is not bright and clean, and conductor diameter increases, and the phenomenons such as electrical property instability have conductor Rounding, any surface finish, external diameter do not increase, electric performance stablity, the characteristics such as easy to process, resistance Water is effective, and the utility model provides a kind of completely new product for electric wire manufacturing field.

Claims

1. novel water-proof cross-linked cable, it can be single cored structure, also can be three-core structure, single cored structure be by water blocking layer [5] in the water-blocking conductor [1], internal shield [2], insulating barrier [3], outer shielding layer [4], semiconductive, metal screen layer [6], the outer water blocking layer [7] of semiconductive, radially moisture-proof layer [8] and outer jacket [9] are formed; Three-core structure is to thoroughly do away with edge core [10] by three, gasket for packing [11] blocks water, water blocking layer [12], radially moisture-proof layer [8 '] is formed with outer jacket [9 '], behind the three eradication edge cores [10] and the stranded stranding of gasket for packing [11] that blocks water, skin is water blocking layer [12] successively, moisture-proof layer [8 '] radially, outer jacket [9 '], insulated wire cores [10] is by water-blocking conductor [1 '], internal shield [2 '], insulating barrier [3 '], outer shielding layer [4 '], semiconductive water blocking layer [5 '], metal screen layer [6 '] is formed, it is characterized in that water-blocking conductor [1,1 '] be by many copper conductors or aluminum conductor [13], water-proofing powder [14], stranded the forming of water blocking yarn [15], between the heart yearn and first stranded layer, apply water blocking yarn [15], in the gap of many copper conductors or aluminum conductor [13], evenly fill water-proofing powder [14] again.