CN210200392U - Antifouling and corrosion-resistant overhead insulated conductor - Google Patents

Abstract

The utility model relates to an antifouling anti-corrosion type overhead insulated wire, it includes molded lines aluminum alloy conductor and from interior to exterior wraps up anticorrosive grease in the conductor gap in proper order, semi-conductive water-blocking tape, semi-conductive shielding layer, crosslinked polyethylene insulating layer, nylon sheathing layer and RTV coating, anticorrosive grease fills between aluminum alloy conductor gap, semi-conductive water-blocking tape thickness is 0.1~0.3mm, semi-conductive shielding layer thickness is 0.8~1.0mm, crosslinked polyethylene insulating layer thickness is 4.5~5.5mm, nylon sheathing layer thickness is 0.3~1.0mm, RTV coating thickness is 0.01mm ~1 mm; the utility model discloses can prevent effectively that the insulated wire surface from taking place dirty sudden strain of a muscle and the electroerosion of electric mark, improve insulated wire's life.

Description

Antifouling and corrosion-resistant overhead insulated conductor

Technical Field

The utility model relates to an overhead power distribution insulated wire field, especially an antifouling anti-corrosion type overhead insulated wire.

Background

Overhead power distribution insulated conductor generally erects in the open air, with insulated conductor direct contact generally be insulator or metal clamp, in the very serious coastal area of salt fog, the insulated conductor surface will accumulate the inhomogeneous salt fog particle of one deck in the short time, in salt fog concentration great or light rainy weather, the position leakage current in the range of 2m apart from insulator or metal clamp obviously increases, along with very serious pollution flashover phenomenon simultaneously, lead to the wire surface insulation impaired in the past for a long time, the serious problem that insulation level descends and even insulating burnout, make the operation fault rate of joining in marriage net overhead insulated wire rise, consequently it is good to design an anti-pollution flashover performance's insulated conductor.

Disclosure of Invention

In view of this, the present invention provides an antifouling and corrosion-resistant overhead insulated wire, which can effectively prevent the surface of the insulated wire from pollution flashover and electroerosion, and prolong the service life of the insulated wire.

The utility model discloses a following scheme realizes: an antifouling corrosion-resistant overhead insulated conductor comprises a molded line aluminum alloy conductor, corrosion-resistant grease, a semiconductive waterproofing tape, a semiconductive shielding layer, a crosslinked polyethylene insulating layer, a nylon sheath layer and an RTV coating; the anti-corrosion grease is filled in gaps of the molded aluminum alloy conductor; the circumferential surface of the molded line aluminum alloy conductor is uniformly coated with the semiconductive water-blocking tape; the circumferential surface of the semi-conductive water-blocking tape is uniformly coated with the semi-conductive shielding layer; the circumference surface of the semi-conductive shielding layer is uniformly coated with a crosslinked polyethylene insulating layer; the nylon sheath layer is uniformly coated on the circumferential surface of the crosslinked polyethylene insulating layer; the RTV coating is uniformly coated on the circumferential surface of the nylon sheath layer.

Furthermore, the thickness of the semi-conductive water-blocking tape is 0.1-0.3 mm.

Furthermore, the thickness of the semiconductive shielding layer is 0.8-1.0 mm.

Furthermore, the thickness of the crosslinked polyethylene insulating layer is 4.5-5.5 mm.

Further, the thickness of the nylon sheath layer is 0.3-1.0 mm.

Further, the RTV coating thickness is 0.01 mm-1 mm.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the utility model discloses anticorrosive oil is adopted in all gaps in the molded lines aluminum alloy conductor and is filled, molded lines aluminum alloy conductor surface package has semi-conductive water-blocking tape, when water passes through this cable conductor, anticorrosive oil blocks water and flows to inside, semi-conductive water-blocking tape expands rapidly and forms closely knit solid state, fill up the gap, prevent the longitudinal flow of water, thereby realize the function that vertically blocks water of conductor, in salt fog or filthy serious area, can completely cut off moisture and salt fog or filthy in the air, thereby avoid the wire to receive the erosion, very big improvement join in marriage network overhead insulated line's operational reliability and overhead insulated cable's life.

(2) The utility model discloses a 0.8~1.0mm thickness's semiconduction shielding layer play the effect of homogenization conductor electric field, prevent that the cable conductor point discharges and causes the cable to puncture, and the crosslinked polyethylene insulating layer of 4.5~5.5mm thickness can show and reduce the insulating surface electric field, reduces and reveals the current value to reduce insulating surface pollution flashover emergence probability.

(3) The utility model discloses a nylon jacket layer thickness is 0.3~1.0mm, has splendid wear resistance, can effectively protect insulating, prevents insulating wear to the life of wire has been prolonged, has reduced and has joined in marriage net aerial insulated cable broken string trouble.

(4) The utility model discloses a RTV coating thickness is 0.01mm ~1mm for the insulated conductor surface is very smooth, can prevent effectively that salt fog adhesion deposit from forming conductive channel and producing pollution flashover and discharge, thereby avoids dielectric breakdown, has reduced and has joined in marriage net aerial insulated conductor broken string trouble.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention; the cable comprises a cable body, a cable sheath, a cable core, a cable sheath, a cable core, a cable.

Detailed Description

The present invention will be further explained with reference to the drawings and the embodiments.

The embodiment provides an antifouling corrosion-resistant overhead insulated conductor, which comprises a molded line aluminum alloy conductor 1, anticorrosive grease 2, a semiconductive water-blocking tape 3, a semiconductive shielding layer 4, a crosslinked polyethylene insulating layer 5, a nylon sheath layer 6 and an RTV coating 7; the anti-corrosion grease 2 is filled in gaps of the molded aluminum alloy conductor 1; the circumferential surface of the molded line aluminum alloy conductor 1 is uniformly coated with the semiconductive water-blocking tape 3; the circumferential surface of the semi-conductive water-blocking tape 3 is uniformly coated with the semi-conductive shielding layer 4; the circumference surface of the semi-conductive shielding layer 4 is uniformly coated with a crosslinked polyethylene insulating layer 5; the nylon sheath layer 6 is uniformly coated on the circumferential surface of the crosslinked polyethylene insulating layer 5; the RTV coating 7 is uniformly coated on the circumferential surface of the nylon sheath layer 6.

In this embodiment, the thickness of the semiconductive water-blocking tape 3 is 0.1 to 0.3 mm.

In this embodiment, the thickness of the semiconductive shielding layer 4 is 0.8-1.0 mm.

In this embodiment, the thickness of the crosslinked polyethylene insulation layer 5 is 4.5 to 5.5 mm.

In this embodiment, the thickness 6 of the nylon sheath layer is 0.3-1.0 mm.

In this embodiment, the RTV coating thickness 7 is 0.01mm to 1 mm.

Preferably, as shown in fig. 1, in the working principle of the present embodiment: and the anti-corrosion grease 2 is filled in the gaps of the aluminum alloy conductor 1. All gaps in the molded aluminum alloy conductor 1 are filled with the anti-corrosion grease 2, the surface of the molded aluminum alloy conductor 1 is wrapped with the semi-conductive water-blocking tape 3, when water passes through the cable conductor, the anti-corrosion grease prevents the water from flowing inwards, the semi-conductive water-blocking tape 3 rapidly expands to form a compact solid state, the gaps are filled with the water, and the water is prevented from flowing longitudinally, so that the longitudinal water-blocking function of the conductor is realized, in areas with serious salt mist or dirt, the water and the salt mist or the dirt in the air can be isolated, the conductor is prevented from being corroded, and the operation reliability of the distribution network overhead insulated line and the service life of the overhead insulated cable are greatly improved.

In this embodiment the semi-conductive shielding layer 4 of 0.8~1.0mm thickness play the effect of homogenization conductor electric field, prevent that the cable conductor point discharges and causes the cable to puncture, and the crosslinked polyethylene insulating layer 5 of 4.5~5.5mm thickness can show and reduce insulating surface electric field, reduces the current value of leaking to reduce insulating surface pollution flashover emergence probability.

In this embodiment 6 thickness of nylon restrictive coating be 0.3~1.0mm, have splendid wear resistance, can effectively protect insulating, prevent insulating wear to prolong the life of wire, reduced and joined in marriage net aerial insulated cable broken string trouble.

In this embodiment RTV coating 7 thickness be 0.01mm ~1mm for the insulated wire surface is very smooth, can effectively prevent salt fog adhesion deposit, prevents that salt fog from forming conductive channel and producing pollution flashover and discharge, thereby avoids insulation damage, has reduced and has joined in marriage net aerial insulated wire disconnection trouble.

It is worth mentioning that the utility model protects a hardware structure, as for the control method does not require protection. The above is only a preferred embodiment of the present invention. However, the present invention is not limited to the above embodiments, and any equivalent changes and modifications made according to the present invention do not exceed the scope of the present invention, and all belong to the protection scope of the present invention.

Claims (6)

1. The utility model provides an antifouling anticorrosive type overhead insulated conductor which characterized in that: the cable comprises a molded line aluminum alloy conductor, anti-corrosion grease, a semiconductive water blocking tape, a semiconductive shielding layer, a crosslinked polyethylene insulating layer, a nylon sheath layer and an RTV coating; the anti-corrosion grease is filled in gaps of the molded aluminum alloy conductor; the circumferential surface of the molded line aluminum alloy conductor is uniformly coated with the semiconductive water-blocking tape; the circumferential surface of the semi-conductive water-blocking tape is uniformly coated with the semi-conductive shielding layer; the circumference surface of the semi-conductive shielding layer is uniformly coated with a crosslinked polyethylene insulating layer; the nylon sheath layer is uniformly coated on the circumferential surface of the crosslinked polyethylene insulating layer; the RTV coating is uniformly coated on the circumferential surface of the nylon sheath layer.

2. The antifouling corrosion-resistant overhead insulated conductor according to claim 1, characterized in that: the thickness of the semi-conductive water-blocking tape is 0.1-0.3 mm.

3. The antifouling corrosion-resistant overhead insulated conductor according to claim 1, characterized in that: the thickness of the semiconductive shielding layer is 0.8-1.0 mm.

4. The antifouling corrosion-resistant overhead insulated conductor according to claim 1, characterized in that: the thickness of the crosslinked polyethylene insulating layer is 4.5-5.5 mm.

5. The antifouling corrosion-resistant overhead insulated conductor according to claim 1, characterized in that: the thickness of the nylon sheath layer is 0.3-1.0 mm.

6. The antifouling corrosion-resistant overhead insulated conductor according to claim 1, characterized in that: the RTV coating thickness is 0.01mm ~1 mm.

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