CN201118171Y - 10kV distribution circuit insulated tower head - Google Patents
10kV distribution circuit insulated tower head Download PDFInfo
- Publication number
- CN201118171Y CN201118171Y CNU2007200886037U CN200720088603U CN201118171Y CN 201118171 Y CN201118171 Y CN 201118171Y CN U2007200886037 U CNU2007200886037 U CN U2007200886037U CN 200720088603 U CN200720088603 U CN 200720088603U CN 201118171 Y CN201118171 Y CN 201118171Y
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- CN
- China
- Prior art keywords
- tower head
- insulating rod
- gold utensil
- insulating
- distribution line
- Prior art date
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- Expired - Lifetime
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Abstract
The utility model relates to an insulating tower head that is used in a 10kV power distribution line. The insulation tower head is characterized in that a hydrophobic high-strength insulating rod is adopted and is assembled through a connecting gold tool and a needle-type insulator, so as to form the whole body of the insulating tower head; or the hydrophobic high-strength insulating rod is directly assembled with the connecting gold tool so as to form the whole body of the insulating tower head. The insulating tower head can greatly improve the insulation level of the power distribution line, significantly increase the air gap for the discharge of thunder, and effectively prevent the breakage of lines as a result of lightning strike. Moreover, the creepage distance is significantly increased; the structure can easily improve the self-cleaning performance; the tower head can essentially prevent the accident of pollution flashover; the tower head is conducive to the hot line work; the operating procedures are simplified; and the operating security is improved.
Description
Technical field
The utility model belongs to the ultra-high-tension power transmission line field, relates to a kind of 10kV distribution line insulation tower head (supporter of aerial condutor).
Background technology
Compare with the insulation level of 110kV and above transmission line, 10kV distribution line insulator creep distance is less, the air clearance L between electrified body (lead) and the earth electrode (iron cross arm)
1(creep distance) is less, is generally 20cm, in case direct lightning strike takes place, flashover takes place very easily then.In addition, it is relatively poor that regional atmospheric environment of living in is netted in the part city, and contamination is serious on the insulator.During big or dense fog weather, be easy to take place pollution flashover in humidity.In addition, during foreign material short circuit pin insulators such as branch, ribbon, kite, food bag, also be easy to cause relative ground circuit, perfect developing into alternate flashover again after the phase current potential raises.
" insulator crossarm " of contrast application number 98229706.8, its purpose of design also is the mechanical strength that guarantees shaft tower when improving the shaft tower insulation level, but its long-time back stamen rod that uses is different with the coefficient that the insulation full skirt expands with heat and contract with cold, the two can not keep fitted seal the slit to occur, the contamination situation will appear in stamen rod and the insulation full skirt, the insulation level of this insulator crossarm will reduce greatly when weather is moistening, when serious even relative ground circuit can occur.And the utility model is an integral body, and dust etc. is filthy to be assembled even have, but filth can be blown away or washes away when the weather of wind or rain is arranged, thereby has kept higher insulation level.
Summary of the invention
The utility model is that purpose provides a kind of 10kV distribution line insulation tower head, solve the problems such as lightning stroke flashover, pollution flashover, phase ground short circuit and alternate flashover that existing 10kV distribution line is prone to, can significantly improve the insulation level of distribution line, substantially can stop the generation of pollution flashover accident fully, and help carrying out live line working.
The technical solution of the utility model is: a kind of 10kV distribution line insulation tower head is characterized in that: adopt hydrophobic type high strength insulating rod, assemble with connecting gold utensil and pin insulator, form an insulation tower head integral body; Or adopt hydrophobic type high strength insulating rod directly to assemble with being connected gold utensil, form an insulation tower head integral body.Thereby increased greatly tower head relatively with the phase insulation spacing, increase substantially the insulation level of distribution line.
Aforesaid 10kV distribution line insulation tower head, it is characterized in that: by pin insulator 1,2,3, connect gold utensil 4,5,6,7,8,9,10 and hydrophobic type high strength insulating rod 11,12 compositions, connecting gold utensil 4,5,6 is contained in respectively on the pin insulator 1,2,3, respectively there is the groove of 1 insertion wire the upper end, connecting gold utensil 7,8 is fixed on pin insulator 1,3 on insulating rod 11 two ends respectively, connect gold utensil 9,10 and be used for insulating rod 11 is fixedly mounted on insulating rod 12, insulating rod 11 and insulating rod 12 across.
Aforesaid 10kV distribution line insulation tower head, it is characterized in that: form by connecting gold utensil 4,5,6,9,10 and hydrophobic type high strength insulating rod 11,12, connecting gold utensil 4,5,6 upper ends respectively has the groove of 1 insertion wire, connecting gold utensil 4,6 is fixed on insulating rod 11 two ends, connecting gold utensil 5 is fixed on insulating rod 12 terminations, connect gold utensil 9,10 and be used for insulating rod 11 is fixedly mounted on insulating rod 12, insulating rod 11 and insulating rod 12 across.
Useful effect
1. the utility model has strengthened the spacing L that relatively insulate
1With phase insulation spacing (about 2L
1), (spacing L promptly relatively insulate to make the air clearance of thunder discharge
1) (as shown in Figure 1) enlarge markedly, and is increased to about 90cm～110cm from original to 20cm is minimum, (lead is to body of the tower, L for discharge path
1+ L
2) having increased 3～4 times, insulation level is increased to 110kV circuit level, makes insulation level be higher than the overvoltage that is formed by the induction thunder, thereby prevents the lightning-caused breaking accident of lightning stroke trip and insulated conductor.
2. the utility model enlarges markedly creep distance, makes the creepage distance under the filthy state enlarge markedly the minimum 90cm of being increased to of 20cm, and its structural shape is easy to improve the automatically cleaning ability, can prevent the generation of pollution flashover accident substantially fully.In addition, when on cross-arm and electric pole, articulating foreign material or twig, can not influence its normal operation substantially yet.
3. help live line working.At present; the live line working of urban distribution network is carried out comparatively general; at the charged for replacement insulator, change cross-arm, when moving bar; need insulate to iron cross arm or body of the tower and cover and adopt insulator crossarm to carry out electrified body and shift; make the operation sequence relative complex; and adopt insulation tower head not only to help simplifying operation procedure, and improved operational security.
The utility model is in light weight, mechanical strength is high, has extremely strong hydrophobicity, adapts to long-term outdoor climatic environment, and has high insulation level, satisfies the requirement of distribution line insulation level fully.
Description of drawings
Fig. 1, existing tower head structural representation.
Fig. 2 is the structural representation of the utility model embodiment 1.
Concrete execution mode
Below in conjunction with drawings and Examples the utility model is described in further detail.
Each member and mark are as follows in Fig. 1: pin insulator X1, X2, X3; Iron cross arm X4; Body of the tower X5; The spacing that relatively insulate L
1(20cm), L
2(70cm), L
3(90cm);
Each member and mark are as follows in Fig. 2: pin insulator 1,2,3 connects gold utensil 4,5,6,7,8,9,10, insulating rod 11,12.
Referring to Fig. 2, the 10kV distribution line insulation tower head of the utility model embodiment 1, it is by pin insulator 1,2,3, gold utensil 4,5,6,7,8,9,10 and hydrophobic type high strength insulating rod 11,12 are formed, connect gold utensil 4,5,6 and be contained in respectively on the pin insulator 1,2,3, respectively there is 1 groove the upper end, is used for insertion wire, connect gold utensil 7,8 and respectively pin insulator 1,3 is fixed on the insulating rod 11, connect gold utensil 9,10 and be used for insulating rod 11 is fixedly mounted on insulating rod 12.This insulation tower head is in light weight, mechanical strength is high, has extremely strong hydrophobicity, adapts to long-term outdoor climatic environment, and has the requirement that high insulation level satisfies the distribution line insulation level fully.
The utility model can also have following possibility (embodiment 2):
Pin insulator 1,2,3 is not installed, lead directly is installed on the hydrophobic type high strength insulating rod 11,12 with the connection gold utensil, have equally enough greatly relatively and the phase insulation spacing, can guarantee the height of insulation level.
Claims (3)
1, a kind of 10kV distribution line insulation tower head is characterized in that: adopt hydrophobic type high strength insulating rod, assemble with connecting gold utensil and pin insulator, form an insulation tower head integral body; Or adopt hydrophobic type high strength insulating rod directly to assemble with being connected gold utensil, form an insulation tower head integral body.
2,10kV distribution line insulation tower head as claimed in claim 1, it is characterized in that: by pin insulator (1,2,3), connect gold utensil (4,5,6,7,8,9,10) and hydrophobic type high strength insulating rod (11,12) form, connect gold utensil (4,5,6) be contained in pin insulator (1,2,3) on, respectively there is the groove of 1 insertion wire the upper end, connect gold utensil (7,8) respectively with pin insulator (1,3) be fixed on insulating rod (11) two ends, connect gold utensil (9,10) be used for insulating rod (11) is fixedly mounted on insulating rod (12), on insulating rod (11) and insulating rod (12) across.
3,10kV distribution line insulation tower head as claimed in claim 1, it is characterized in that: form by connecting gold utensil (4,5,6,9,10) and hydrophobic type high strength insulating rod (11,12), connecting gold utensil (4,5,6) upper end respectively has the groove of 1 insertion wire, connecting gold utensil (4,6) is fixed on insulating rod (11) two ends, connecting gold utensil (5) is fixed on insulating rod (12) termination, connect gold utensil (9,10) and be used for insulating rod (11) is fixedly mounted on insulating rod (12), insulating rod (11) and insulating rod (12) across.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200886037U CN201118171Y (en) | 2007-11-29 | 2007-11-29 | 10kV distribution circuit insulated tower head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200886037U CN201118171Y (en) | 2007-11-29 | 2007-11-29 | 10kV distribution circuit insulated tower head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201118171Y true CN201118171Y (en) | 2008-09-17 |
Family
ID=39992760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200886037U Expired - Lifetime CN201118171Y (en) | 2007-11-29 | 2007-11-29 | 10kV distribution circuit insulated tower head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201118171Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101227071B (en) * | 2007-11-29 | 2010-09-15 | 国网电力科学研究院 | 10 kV distribution line insulation tower head |
-
2007
- 2007-11-29 CN CNU2007200886037U patent/CN201118171Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101227071B (en) * | 2007-11-29 | 2010-09-15 | 国网电力科学研究院 | 10 kV distribution line insulation tower head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE NETWORK ELECTRIC POWER RESEARCH INSTITUTE Free format text: FORMER OWNER: WUHAN HIGH VOLTAGE RESEARCH INSTITUTE OF STATE GRID Effective date: 20091120 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20091120 Address after: Nanjing City, Jiangsu Province, Nan Shui Road No. 8, zip code: 210003 Patentee after: State Grid Electric Power Research Insititute Address before: Hubei province Wuhan city Hongshan District Luoyu road 143, zip code: 430074 Patentee before: Guowang Wuhan High Voltage Inst |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080917 |