CN202534796U - Composite metal grounding body - Google Patents
Composite metal grounding body Download PDFInfo
- Publication number
- CN202534796U CN202534796U CN2012202330337U CN201220233033U CN202534796U CN 202534796 U CN202534796 U CN 202534796U CN 2012202330337 U CN2012202330337 U CN 2012202330337U CN 201220233033 U CN201220233033 U CN 201220233033U CN 202534796 U CN202534796 U CN 202534796U
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- earth electrode
- steel core
- composition metal
- copper layer
- layer
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Abstract
The utility model discloses a composite metal grounding body, which is a solid grounding body. The grounding body comprises a steel core (1) and a copper layer (2) wrapping the periphery of the steel core (1) along the length direction of the steel core (1). A zinc layer (3) wraps the copper layer (2) along the length direction of the copper layer (2). The copper layer (2) is tightly attached to the steel core (1), and is also tightly attached to the zinc layer (3). The radial thickness of the steel core (1) is 2 to 90mm, the radial thickness of the copper layer (2) is 0.1 to 5mm, and the radial thickness of the zinc layer (3) is 20 mu m to 30mm. Corrosion to grounding equipment made of steel, copper and the like is avoided, and the service life of the equipment is ensured. The middle copper layer has low resistivity and high electric conductivity, so that high current conduction and leakage capability when the grounding equipment has failure current is ensured.
Description
Technical field
The utility model relates to a kind of earth electrode, particularly includes the metal earth electrode of composite construction.
Background technology
Composition metal earth electrode of the prior art is generally the bonded earth electrode of double-level-metal.Like skin is the copper layer, and internal layer is the copper-clad steel earth electrode of steel core; And skin is the zinc layer, and internal layer is the zinc cladding steel earth electrode of steel core etc.
The bimetallic bonded earth electrode that the copper-clad steel earth electrode is made up of copper and steel, according to the Material Physics attribute, the current potential of copper is higher than the current potential of steel; During the copper-clad steel earth electrode is placed into the soil during as earth electrode, under soil natural corrosion situation, and the copper-clad steel earth electrode is when directly being connected with steel equipment; Copper and steel form primary cell; When not receiving soil corrosion as yet, corroded steel equipment earlier, influenced the useful life and the safe operation of equipment as the copper of earth electrode.
The bimetallic bonded earth electrode that zinc cladding steel earth electrode is made up of zinc and steel, according to the Material Physics attribute, the current potential of zinc is lower than the current potential of steel; Zinc and steel form primary cell; Be connected with steel equipment, when in soil, being used as earth electrode, zinc cladding steel earth electrode has played the cathodic protection effect; Corrode zinc, protected equipment.Compare with copper, the resistivity of zinc is bigger, has reduced the water conservancy diversion discharge capacity of earth electrode for the equipment fault electric current.
The utility model content
The utility model has overcome the deficiency of prior art; A kind of composition metal earth electrode is provided; This earth electrode is when being connected with steel equipment; Both can avoid intermetallic galvanic corrosion, simultaneously ground connection equipment fault electric current had good water conservancy diversion discharge capacity again, solve the technical problem that exists in the prior art the grounding apparatus generation.
For solving above-mentioned technical problem, the utility model adopts following technical scheme:
A kind of composition metal earth electrode, described earth electrode are solid earth electrode, and described earth electrode includes steel core. and along steel core. length direction is coated on steel core. the copper layer of periphery. and, also be coated with the zinc layer along the length direction of described copper layer; Described steel core and copper layer fit tightly; Described copper layer and zinc layer also fit tightly; When the intermetallic galvanic corrosion, the current potential of zinc is lower than the current potential of copper, and is lower than the current potential of steel simultaneously; When forming primary cell; Earlier the outermost metal zinc to the composition metal earth electrode produces corrosion, has avoided the corrosion to steel, grounding apparatus such as copper, has guaranteed the useful life of equipment.Middle copper layer has lower resistivity, and the favorable conductive rate when having guaranteed grounding apparatus generation fault current, has good water conservancy diversion discharge capacity.
The radial thickness of described steel core is 2 mm-90mm, and the radial thickness of described copper layer is 0.1 mm-5mm, and the radial thickness of said zinc layer is 20 μ m-30mm.
Further be:
The radial thickness of described composition metal earth electrode is 3mm-100mm.
The cross section of described composition metal earth electrode is circular.
The cross section of described composition metal earth electrode is a rectangle.
The cross section of described composition metal earth electrode is oval.
When described steel core was circle, the diameter of steel core was 2 mm-90mm.
When described steel core was rectangle, the length of steel core was 2mm-90mm, and wide is 2mm-80mm.
When described steel core was ellipse, the major axis of steel core was 2mm-90mm, and minor axis is 2mm-60mm.
Compared with prior art, the beneficial effect of the utility model is:
1, the utility model is followed successively by zinc layer, copper layer and steel core layer from the skin to the internal layer.When the intermetallic galvanic corrosion, the current potential of zinc is lower than the current potential of copper, and is lower than the current potential of steel simultaneously; When forming primary cell; Earlier the outermost metal zinc to the composition metal earth electrode produces corrosion, has avoided the corrosion to steel, grounding apparatus such as copper, has guaranteed the useful life of equipment.
2, the copper layer in the middle of the utility model is positioned at has lower resistivity, and the favorable conductive rate when having guaranteed grounding apparatus generation fault current, has good water conservancy diversion discharge capacity.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further to set forth.
Embodiment 1:
As shown in Figure 1, a kind of composition metal earth electrode, described earth electrode are solid earth electrode, and described earth electrode includes steel core 1 and is coated on the copper layer 2 of steel core periphery along steel core 1 length direction, also are coated with zinc layer 3 along the length direction of described copper layer 2; Described steel core 1 fits tightly with copper layer 2; Described copper layer 2 also fits tightly with zinc layer 3; When the intermetallic galvanic corrosion, the current potential of zinc is lower than the current potential of copper, and is lower than the current potential of steel simultaneously; When forming primary cell; Earlier the outermost metal zinc to the composition metal earth electrode produces corrosion, has avoided the corrosion to steel, grounding apparatus such as copper, has guaranteed the useful life of equipment.Middle copper layer has lower resistivity, and the favorable conductive rate when having guaranteed grounding apparatus generation fault current, has good water conservancy diversion discharge capacity.In the present embodiment; The cross section of composition metal earth electrode is circular, and the diameter of steel core is 2 mm-90mm, and the radial thickness of copper layer 2 is 0.1 mm-5mm; The diametric thickness along steel core of said zinc layer is 20 μ m-30mm, and the diameter of composition metal earth electrode is 3mm-100mm.
Embodiment 2:
A kind of composition metal earth electrode, described earth electrode are solid earth electrode, and described earth electrode includes steel core 1 and is coated on the copper layer 2 of steel core periphery along steel core 1 length direction, also are coated with zinc layer 3 along the length direction of described copper layer 2; Described steel core 1 fits tightly with copper layer 2; Described copper layer 2 also fits tightly with zinc layer 3; When the intermetallic galvanic corrosion, the current potential of zinc is lower than the current potential of copper, and is lower than the current potential of steel simultaneously; When forming primary cell; Earlier the outermost metal zinc to the composition metal earth electrode produces corrosion, has avoided the corrosion to steel, grounding apparatus such as copper, has guaranteed the useful life of equipment.Middle copper layer 2 has lower resistivity, and the favorable conductive rate when having guaranteed grounding apparatus generation fault current, has good water conservancy diversion discharge capacity.In the present embodiment, the cross section of composition metal earth electrode is a rectangle, and the length of steel core 1 is 2mm-90mm, and wide is 2mm-80mm.The thickness along the direction of the length of steel core of copper layer 2 is 0.1 mm-5mm, and copper layer 2 is 0.1 mm-5mm along the thickness of the wide direction of steel core.Zinc layer 3 is 20 μ m-30mm along the thickness of the direction of the length of steel core, and zinc layer 3 is 20 μ m-30mm along the thickness of the wide direction of steel core.The length of composition metal earth electrode is 3mm-100mm, and wide also is 3mm-100mm.
Embodiment 3:
Present embodiment is with embodiment 2 different places that with embodiment 1 cross section of composition metal earth electrode is oval, and the major axis of steel core 1 is 2mm-90mm, and minor axis is 2mm-60mm.Zinc layer 3 is 20 μ m-30mm along the thickness of the direction of the major axis of steel core, and zinc layer 3 is 20 μ m-30mm along the thickness of the direction of the minor axis of steel core.The major axis of composition metal earth electrode is 3mm-100mm, and minor axis is 3mm-70mm.
In the manufacturing process of the utility model, can coat the copper layer in advance at the steel core outer surface, behind the formation copper base-steel bi-metal composite material, coat the zinc layer again, form the utility model composition metal earth electrode.
In the manufacturing process of the utility model, also can coat the zinc layer in advance at the copper pipe outer surface, form the zinc-copper double metallic composite material after, in copper pipe, penetrate steel core and carry out cold drawnly, form the utility model composition metal earth electrode.
Claims (8)
1. composition metal earth electrode; Described earth electrode is solid earth electrode; It is characterized in that: described earth electrode includes steel core (1) and is coated on the copper layer (2) of steel core (1) periphery along steel core (1) length direction, also is coated with zinc layer (3) along the length direction of described copper layer (2); Described steel core (1) and copper layer (2) fit tightly; Described copper layer (2) and zinc layer (3) also fit tightly; The radial thickness of described steel core (1) is 2 mm-90mm, and the radial thickness of described copper layer (2) is 0.1 mm-5mm, and the radial thickness of said zinc layer (3) is 20 μ m-30mm.
2. composition metal earth electrode according to claim 1 is characterized in that: the radial thickness of described composition metal earth electrode is 3mm-100mm.
3. composition metal earth electrode according to claim 2 is characterized in that: the cross section of described composition metal earth electrode is for circular.
4. composition metal earth electrode according to claim 2 is characterized in that: the cross section of described composition metal earth electrode is a rectangle.
5. composition metal earth electrode according to claim 2 is characterized in that: the cross section of described composition metal earth electrode is for oval.
6. composition metal earth electrode according to claim 3 is characterized in that: the diameter of described steel core is 2 mm-90mm.
7. composition metal earth electrode according to claim 4 is characterized in that: the length of described steel core is 2mm-90mm, and wide is 2mm-80mm.
8. composition metal earth electrode according to claim 5 is characterized in that: the major axis of described steel core is 2mm-90mm, and minor axis is 2mm-60mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202330337U CN202534796U (en) | 2012-05-23 | 2012-05-23 | Composite metal grounding body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202330337U CN202534796U (en) | 2012-05-23 | 2012-05-23 | Composite metal grounding body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202534796U true CN202534796U (en) | 2012-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202330337U Expired - Fee Related CN202534796U (en) | 2012-05-23 | 2012-05-23 | Composite metal grounding body |
Country Status (1)
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| CN (1) | CN202534796U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103247871A (en) * | 2013-04-20 | 2013-08-14 | 浙江华甸防雷科技有限公司 | Zinc-base alloy copper ground rod and manufacturing technique thereof |
| CN105322311A (en) * | 2015-11-06 | 2016-02-10 | 国网智能电网研究院 | Corrosion-resistant material-coated iron-based composite ground rod and preparation method thereof |
| WO2016159748A1 (en) * | 2015-03-30 | 2016-10-06 | Ontiveros Balcázar Alberto Manuel | Coated steel parts and production methods thereof |
-
2012
- 2012-05-23 CN CN2012202330337U patent/CN202534796U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103247871A (en) * | 2013-04-20 | 2013-08-14 | 浙江华甸防雷科技有限公司 | Zinc-base alloy copper ground rod and manufacturing technique thereof |
| WO2016159748A1 (en) * | 2015-03-30 | 2016-10-06 | Ontiveros Balcázar Alberto Manuel | Coated steel parts and production methods thereof |
| CN105322311A (en) * | 2015-11-06 | 2016-02-10 | 国网智能电网研究院 | Corrosion-resistant material-coated iron-based composite ground rod and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20140523 |