CN211016602U

CN211016602U - Silane crosslinked ethylene propylene rubber insulated termite-proof direct current cable

Info

Publication number: CN211016602U
Application number: CN201922324715.3U
Authority: CN
Inventors: 张丹丹
Original assignee: Hongsheng Technology Co ltd
Current assignee: Hongsheng Technology Co ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-07-14
Anticipated expiration: 2029-12-23

Abstract

The silane crosslinked ethylene propylene rubber insulated termite-proof direct current cable is characterized in that: the anti-termite silicon-rubber cable comprises a conductor cable core (1), wherein an aluminum foil layer (8) is arranged on the conductor cable core (1), and a crosslinked polyethylene insulating layer (2), a tinned copper wire woven layer (3), a water blocking layer (4), a glass fiber layer (5), an armor layer (6) and an anti-termite silane crosslinked ethylene propylene rubber sheath layer (7) are sequentially tightly attached to the outer side of the aluminum foil layer (8) from inside to outside. The utility model discloses cable bending property is good, has improved the effect of prevention and cure termite.

Description

Silane crosslinked ethylene propylene rubber insulated termite-proof direct current cable

Technical Field

The utility model relates to a silane crosslinked ethylene propylene rubber insulation termite-proof direct current cable.

Background

The direct current cable has high transmission rate and low line loss; the current is adjusted and the transmission direction is changed conveniently; the installation and maintenance cost is low, and the like, and the device is more and more applied to various fields, but the requirement on the service performance is higher and higher.

If the cable taking common polyvinyl chloride or polyethylene as the sheath is laid in places where termites are rampant, the cable is often damaged by the termites, the cable can be seriously punctured, and huge economic loss is caused to the society. The traditional termite-proof method is spraying the pesticide, but the effect is not ideal. Underground cables and termite-proof measures are difficult to implement. If the cable itself is termite resistant, the above problems are readily solved. Some termite-proof cables are coated with a layer of termite-proof drug on the surface of the cable, but the termite-proof drug is easy to fall off, so the effect is not ideal, and the environment is polluted, so that the development of a new generation of pollution-free termite-proof cables is imperative.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a white ant direct current cable is prevented in silane crosslinked ethylene propylene rubber insulation, including the conductor sinle silk, establish the aluminium foil layer on the conductor sinle silk, the aluminium foil layer is hugged closely in proper order outward by interior two outer crosslinked polyethylene insulating layers, tinned copper wire weaving layer, water blocking layer, glass fiber layer, armor, the silane crosslinked ethylene propylene rubber restrictive coating of preventing white ant.

Furthermore, the termite-proof silane crosslinked ethylene propylene rubber sheath layer material is the mixture of composite silane and ethylene propylene rubber, and a repellent is added in the sheath layer material.

Furthermore, the water-blocking layer adopts a longitudinal wrapping water-blocking tape with the thickness of 0.25mm, and wraps the tinned copper wire braided layer at an overlapping rate of 20%.

Further, the armor layer is steel wire armor.

The utility model discloses cable bending property is good, has improved the effect of prevention and cure termite.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure, 1, a conductor core, 2, a crosslinked polyethylene insulating layer, 3, a tinned copper wire braided layer, 4, a water-resistant layer, 5, a glass fiber layer, 6, an armor layer, 7, a termite-proof silane crosslinked ethylene propylene rubber sheath layer and 8, an aluminum foil layer.

Detailed Description

As shown in figure 1, the silane crosslinked ethylene propylene rubber insulated termite-proof direct current cable comprises a conductor wire core 1, wherein an aluminum foil layer 8 is tightly wrapped on the conductor wire core 1, and the aluminum foil layer is adopted to improve the insulation effect. The cross-linked polyethylene insulating layer 2, the tinned copper wire braid layer 3, the water-blocking layer 4, the glass fiber layer 5, the armor layer 6 and the termite-proof silane cross-linked ethylene propylene rubber sheath layer 7 are sequentially arranged outside the aluminum foil layer 8 in a close fit manner from inside to outside.

The termite-proof silane crosslinked ethylene propylene rubber sheath layer 7 is prepared by mixing composite silane and ethylene propylene rubber, and a repellent is added into the composite silane and ethylene propylene rubber. The repellent is an active chemical substance produced by plants or artificially synthesized and having an insect repelling effect. Termites smelling the odor of the repellent, which is non-toxic and harmless to humans and the surrounding environment, can be bored and thus act as termite deterrents. The termite-proof silane crosslinked ethylene propylene rubber sheath layer 7 adopts a one-step silane crosslinked ethylene propylene rubber processing technology, the one-step silane crosslinked ethylene propylene rubber processing technology is to inject the composite silane into a three-layer co-extrusion extruder to be directly blended, grafted and formed with the ethylene propylene rubber and the repellent, and the flow is simple, the measurement is accurate and the control is easy. The one-step method silane crosslinked ethylene propylene rubber has the advantages of simple processing technology, no processes of tabletting, standing and the like, greatly improved production efficiency, effective prevention of the mixing of external impurities, ensured insulating electrical property and good bending property of the produced cable.

The termite-resistant silane crosslinked ethylene propylene rubber sheath layer 7 is arranged outside the armor layer 6, so that the termite-resistant effect is improved.

The water-blocking layer 4 adopts a longitudinal wrapping water-blocking tape with the thickness of 0.25mm and wraps the tinned copper wire braid layer 3 at the overlapping rate of 20%.

The armor layer 5 is steel wire armor.

Claims

1. The silane crosslinked ethylene propylene rubber insulated termite-proof direct current cable is characterized in that: the anti-termite silicon-rubber cable comprises a conductor cable core (1), wherein an aluminum foil layer (8) is arranged on the conductor cable core (1), and a crosslinked polyethylene insulating layer (2), a tinned copper wire woven layer (3), a water blocking layer (4), a glass fiber layer (5), an armor layer (6) and an anti-termite silane crosslinked ethylene propylene rubber sheath layer (7) are sequentially tightly attached to the outer side of the aluminum foil layer (8) from inside to outside.

2. The silane crosslinked ethylene propylene rubber insulated termite resistant dc cable as set forth in claim 1, wherein: the termite-proof silane crosslinked ethylene propylene rubber sheath layer (7) is prepared by mixing composite silane and ethylene propylene rubber, and a repellent is added into the composite silane crosslinked ethylene propylene rubber sheath layer.

3. The silane crosslinked ethylene propylene rubber insulated termite resistant dc cable as set forth in claim 1, wherein: the water-blocking layer (4) is a longitudinal wrapping water-blocking tape with the thickness of 0.25mm, and is wrapped outside the tinned copper wire braid layer (3) in a wrapping mode with the overlapping rate of 20%.

4. The silane crosslinked ethylene propylene rubber insulated termite resistant dc cable as set forth in claim 1, wherein: the armor layer (6) is steel wire armor.