JPH083290B2 - How to prevent snow damage on utility poles and utility poles - Google Patents
How to prevent snow damage on utility poles and utility polesInfo
- Publication number
- JPH083290B2 JPH083290B2 JP5980787A JP5980787A JPH083290B2 JP H083290 B2 JPH083290 B2 JP H083290B2 JP 5980787 A JP5980787 A JP 5980787A JP 5980787 A JP5980787 A JP 5980787A JP H083290 B2 JPH083290 B2 JP H083290B2
- Authority
- JP
- Japan
- Prior art keywords
- utility pole
- magnetic core
- snow damage
- branch line
- utility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 claims description 18
- 238000004804 winding Methods 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 claims 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 13
- 230000008018 melting Effects 0.000 description 6
- 238000002844 melting Methods 0.000 description 6
- 230000002265 prevention Effects 0.000 description 6
- 230000005855 radiation Effects 0.000 description 6
- 239000002689 soil Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 229920000114 Corrugated plastic Polymers 0.000 description 1
- 241000533950 Leucojum Species 0.000 description 1
- 238000009933 burial Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は電柱及び電柱支線の雪害防止方法に関するも
のである。Description: TECHNICAL FIELD The present invention relates to a method for preventing snow damage on a utility pole and a utility pole branch line.
（従来技術及び解決しようとする問題点） 電柱あるいは電柱支線の積雪による雪害防止方法とし
ては、従来は積雪期間中２〜３回程度、人力により除雪
することにより雪害防止を行なっていた。しかし、この
人力による除雪は作業効率が１人あたり１日４〜10本程
度と極めて低く、多大の人力と経費が必要であった。(Prior Art and Problems to be Solved) As a method for preventing snow damage caused by snowfall on a utility pole or a utility pole branch line, conventionally, snow damage is prevented by manually removing the snow about 2-3 times during the snowfall period. However, the work efficiency of this manual snow removal is extremely low at about 4 to 10 snowflakes per day per person, which requires a large amount of manpower and cost.
このような人力による除雪の問題点を解決する手段と
してヒートパイプの吸熱蒸発部を土壌中に埋設し、その
放熱凝縮部を電柱又は電柱支線に沿わせて配設し、土壌
熱を利用して融雪する方法が提案されている。しかし、
このヒートパイプを利用する方法は、ヒートパイプを土
壌中に埋設するため2.5〜5.0m程度ボーリンクする必要
があり、布設経費がかさむという問題点がある。又布設
経費を節減するため埋設深さを浅くすると、土壌の熱容
量が減るため４月頃迄ヒートパイプの放熱が充分得られ
ないという問題がある。さらに電柱の周囲の融雪を行な
う場合は、融雪の必要部分の面積が広く、多量の放熱量
が必要となり、2.5〜5.0m程度の埋設では、充分な放熱
量が得られないという問題点もある。As a means to solve the problem of such snow removal by human power, the endothermic evaporation portion of the heat pipe is buried in the soil, the heat radiation condensation portion is arranged along the utility pole or utility pole branch, and the soil heat is used. A method of melting snow has been proposed. But,
This method of using the heat pipe has a problem that the installation cost is high because the heat pipe is buried in the soil and it is necessary to make a boring about 2.5 to 5.0 m. Also, if the burial depth is made shallow to reduce the installation cost, the heat capacity of the soil will be reduced, and there will be a problem that heat radiation from the heat pipe cannot be sufficiently obtained until around April. In addition, when performing snow melting around utility poles, the required area for snow melting is large and a large amount of heat radiation is required, and there is also the problem that sufficient heat radiation cannot be obtained when buried about 2.5 to 5.0 m. .
（問題点を解決するための手段） 本発明は上述の問題点を解決した電柱及び電柱支線の
雪害防止方法を提供するもので、その特徴は、電力線に
変流器の磁気コアを結合し、上記変流器の２次巻線に分
岐された電力を利用することにある。(Means for Solving Problems) The present invention provides a method for preventing snow damage to a utility pole and a utility pole branch line that solves the above-mentioned problems, and is characterized by coupling a magnetic core of a current transformer to a power line, It is to utilize the electric power branched to the secondary winding of the current transformer.
第１図は本発明の雪害防止方法を電柱支線に適用した
例の説明図である。図面において、（１）は架空配電線
の如き電力線、（２）は電柱、（３）は電柱支線であ
る。上記電力線（１）にはこれを囲繞して変流器（４）
の磁気コア（41）が装着されており、その２次巻線（4
2）にはリード線（６）を介してヒータ線（５）が接続
されており、該ヒータ線（５）を電柱支線（３）に沿わ
して配設する。FIG. 1 is an explanatory diagram of an example in which the snow damage prevention method of the present invention is applied to a utility pole branch line. In the drawings, (1) is a power line such as an overhead distribution line, (2) is a utility pole, and (3) is a utility pole branch line. Surround the power line (1) with the current transformer (4).
The magnetic core (41) of the
A heater wire (5) is connected to 2) via a lead wire (6), and the heater wire (5) is arranged along the utility pole branch line (3).
第２図は本発明の雪害防止方法を電柱に適用した例の
説明図で、変流器（４）の２次巻線（42）にリード線
（６）を介して接続したヒータ線（５）を電柱（２）に
沿わせて配設したもので、この場合ヒータ線（５）は積
雪の移動方向（矢印）に対し、電柱の前面に沿わせる。FIG. 2 is an explanatory view of an example in which the snow damage prevention method of the present invention is applied to an electric pole. A heater wire (5) connected to a secondary winding (42) of a current transformer (4) via a lead wire (6). ) Is arranged along the electric pole (2), and in this case, the heater wire (5) is arranged along the front surface of the electric pole in the moving direction (arrow) of snow.
第３図は本発明の雪害防止方法を電柱支線に適用した
他の例の説明図である。この例では、電柱支線（３）に
沿わせてヒートパイプ（９）を配設し、ヒートパイプ
（９）の下端の吸熱蒸発部に、変流器（４）の２次巻線
（42）にリード線（６）を介して接続したヒータ線
（５）を巻付けたものである。この場合、２次巻線（4
2）に接続されたリード線（６）は例えば波付プラスチ
ックパイプ等の保護パイプ（８）に収納されて電柱
（２）に沿って引き下げられている。FIG. 3 is an explanatory view of another example in which the snow damage prevention method of the present invention is applied to a utility pole branch line. In this example, the heat pipe (9) is arranged along the utility pole branch line (3), and the secondary winding (42) of the current transformer (4) is provided at the endothermic evaporation section at the lower end of the heat pipe (9). A heater wire (5) connected to the above via a lead wire (6) is wound. In this case, the secondary winding (4
The lead wire (6) connected to 2) is housed in a protective pipe (8) such as a corrugated plastic pipe and pulled down along the utility pole (2).
（作用） 電力線（１）には通常20〜100A程度の電流が流れてい
る。この電力線（１）にこれが貫通するように変流器
（４）の磁気コア（41）を装着すると、変流器の２次巻
線（42）から数Ｗ〜数10Wの電力を分岐することが可能
である。本発明の雪害防止方法では、この分岐電力を利
用してヒータ線（５）を加熱し融雪するものである。(Operation) A current of about 20 to 100 A normally flows through the power line (1). When the magnetic core (41) of the current transformer (4) is attached to the power line (1) so that it penetrates, the secondary winding (42) of the current transformer branches power of several W to several tens W. Is possible. In the snow damage prevention method of the present invention, the heater wire (5) is heated to melt snow by utilizing this branching power.
第１図及び第２図の具体例では、変流器（４）の２次
巻線（42）にリード線（６）を介して接続したヒータ線
（５）を直接電柱支線（３）あるいは電柱（２）に沿わ
せて配設したものである。この場合、電柱（２）あるい
は電柱支線（３）の最大積雪部分（７）の上の部分は放
熱の少ないリード線（６）として、積雪のない部分での
放熱を避けた方が効果的に電力を使用できる。又自動あ
るいは手動スイッチによりヒータのオン・オフを行ない
無積雪時にはヒータ線に電流が流れないようにすること
により一層効果的に電力を利用できる。例えば手動スイ
ッチは雪が降り始める12月頃にオンにし、積雪のなくな
る４月頃にオフにするとよい。又自動スイッチは支線
（３）の張力が標準値を数10kg程度超えたときにオンと
なるらうセットしておき、間けつ的に融雪を行なうよう
にすることもできる。なお磁気コアとしては飽和型磁気
コアを用い、又分割型磁気コアを用いることにより既設
の電力線（１）への装着が容易となる。1 and 2, the heater wire (5) connected to the secondary winding (42) of the current transformer (4) via the lead wire (6) is connected directly to the utility pole branch line (3) or It is arranged along the telephone pole (2). In this case, it is effective to avoid heat radiation in the snow-free area by using the lead wire (6) with less heat radiation in the area above the maximum snow area (7) of the power pole (2) or the power pole branch line (3). Power can be used. Further, the electric power can be used more effectively by turning on / off the heater by an automatic or manual switch so that no current flows in the heater wire when there is no snow. For example, the manual switch should be turned on around December when it starts to snow and turned off around April when there is no snow. The automatic switch can be set so that it will be turned on when the tension of the branch line (3) exceeds the standard value by several tens of kilograms, so that the snow is intermittently melted. By using a saturation type magnetic core or a split type magnetic core as the magnetic core, it is easy to mount it on the existing power line (1).
第３図の例はヒータ線（５）を直接電柱（２）あるい
は電柱支線（３）へ沿わせるのではなく、電柱（２）電
柱支線（３）へはヒートパイプ（９）を沿わせて配設
し、ヒータ線（５）はヒートパイプ（９）の熱源として
使用する。この場合第３図のようにリード線（６）、ヒ
ータ線（５）を保護パイプ（８）内に収納することによ
り外傷による断線及び感電を防止し得る。In the example shown in FIG. 3, the heater wire (5) is not directly connected to the utility pole (2) or the utility pole branch line (3), but the heat pipe (9) is installed to the utility pole (2) and the utility pole branch line (3). Arranged, the heater wire (5) is used as a heat source for the heat pipe (9). In this case, as shown in FIG. 3, the lead wire (6) and the heater wire (5) are housed in the protective pipe (8) to prevent disconnection and electric shock due to external damage.
（発明の効果） 上述したように本発明の雪害防止方法によれば、電力
線から容易に電力を分岐することができ、この分岐電力
を電柱及び電柱支線周囲の融雪に用いることにより、こ
れらの雪害防止を実現できる。(Effect of the invention) As described above, according to the snow damage prevention method of the present invention, it is possible to easily branch the power from the power line, by using this branch power for snow melting around the utility pole and utility pole branch, these snow damage Prevention can be realized.
又融雪のエネルギー源を電力線の分岐電力としたの
で、電柱のあるところでは、どこにおいても融雪のため
の充分なエネルギーが得られ、設置も非常に容易であ
る。Moreover, since the energy source for snow melting is the branch power of the power line, sufficient energy for snow melting can be obtained anywhere where there is a utility pole, and installation is very easy.
第１図は本発明の方法を電柱支線に適用した具体例の説
明図、第２図は本発明の方法を電柱に適用した具体例の
説明図である。 第３図は本発明の方法を電柱支線に適用した他の具体例
の説明図である。 １……電力線、２……電柱、３……電柱支線、４……変
流器、41……磁気コア、42……２次巻線、５……ヒータ
線、６……リード線、８……保護パイプ、９……ヒート
パイプ。FIG. 1 is an explanatory view of a specific example in which the method of the present invention is applied to a utility pole branch line, and FIG. 2 is an explanatory view of a specific example in which the method of the present invention is applied to a utility pole. FIG. 3 is an explanatory diagram of another specific example in which the method of the present invention is applied to a utility pole branch line. 1 ... Power line, 2 ... Utility pole, 3 ... Utility pole branch line, 4 ... Current transformer, 41 ... Magnetic core, 42 ... Secondary winding, 5 ... Heater wire, 6 ... Lead wire, 8 ...... Protective pipe, 9 ... heat pipe.
Claims (5)
変流器の２次巻線に分岐された電力を利用することを特
徴とする電柱及び電柱支線の雪害防止方法。1. A method for preventing snow damage on a utility pole and a utility pole branch line, which comprises coupling a magnetic core of a current transformer to a power line and utilizing electric power branched to a secondary winding of the current transformer.
ヒータ線を電柱又は電柱支線に沿わせて配設することを
特徴とする特許請求の範囲第１項記載の電柱及び電柱支
線の雪害防止方法。2. A utility pole according to claim 1, wherein a heater wire is connected to the secondary winding of the current transformer, and the heater wire is arranged along the utility pole or a utility pole branch line. And a method for preventing snow damage on telephone pole branches.
ヒータ線を電柱又は電柱支線に沿わせて配設したヒート
パイプの下端部に巻付けることを特徴とする特許請求の
範囲第１項記載の電柱及び電柱支線の雪害防止方法。3. A heater wire is connected to a secondary winding of a current transformer, and the heater wire is wound around a lower end portion of a heat pipe arranged along a utility pole or a utility pole branch line. The method of preventing snow damage to utility poles and utility pole branch lines according to the first paragraph.
徴とする特許請求の範囲第１項記載の電柱及び電柱支線
の雪害防止方法。4. The method for preventing snow damage to utility poles and utility pole branch lines according to claim 1, wherein the magnetic core is a saturated type magnetic core.
徴とする特許請求の範囲第１項記載の電柱及び電柱支線
の雪害防止方法。5. The method for preventing snow damage to a utility pole and a utility pole branch line according to claim 1, wherein the magnetic core is a split type magnetic core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5980787A JPH083290B2 (en) | 1987-03-13 | 1987-03-13 | How to prevent snow damage on utility poles and utility poles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5980787A JPH083290B2 (en) | 1987-03-13 | 1987-03-13 | How to prevent snow damage on utility poles and utility poles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63226469A JPS63226469A (en) | 1988-09-21 |
| JPH083290B2 true JPH083290B2 (en) | 1996-01-17 |
Family
ID=13123886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5980787A Expired - Lifetime JPH083290B2 (en) | 1987-03-13 | 1987-03-13 | How to prevent snow damage on utility poles and utility poles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH083290B2 (en) |
-
1987
- 1987-03-13 JP JP5980787A patent/JPH083290B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63226469A (en) | 1988-09-21 |
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