JPH0195479A - Grounding construction equipped with water supply device - Google Patents
Grounding construction equipped with water supply deviceInfo
- Publication number
- JPH0195479A JPH0195479A JP25171687A JP25171687A JPH0195479A JP H0195479 A JPH0195479 A JP H0195479A JP 25171687 A JP25171687 A JP 25171687A JP 25171687 A JP25171687 A JP 25171687A JP H0195479 A JPH0195479 A JP H0195479A
- Authority
- JP
- Japan
- Prior art keywords
- water supply
- supply tube
- effective components
- shall
- ground
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 238000010276 construction Methods 0.000 title abstract 3
- 238000000034 method Methods 0.000 claims description 4
- 239000012266 salt solution Substances 0.000 claims description 2
- 239000003638 chemical reducing agent Substances 0.000 abstract description 9
- 239000004576 sand Substances 0.000 abstract description 6
- 150000003839 salts Chemical class 0.000 abstract description 2
- 239000008400 supply water Substances 0.000 abstract 1
- 239000004480 active ingredient Substances 0.000 description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Manufacturing Of Electrical Connectors (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、配電線路の保安と事故防止のため欠くことの
できない接地工事に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to grounding work that is essential for the safety of power distribution lines and accident prevention.
接地極には銅板、銅帯あるいは銅棒などを使用し、それ
らの接地極周辺に接地抵抗低減剤を埋設する方法が一般
的接地工法である。しかし、接地抵抗低減剤の有効成分
が水溶性塩類であるため、有効成分が時間の経過ととも
に地下水により流失し、接地抵抗値が許容範囲を超える
ようになるため、施工数年後には手数のかから補修工事
が必要になるという欠点がある。A common grounding method is to use a copper plate, copper strip, copper rod, etc. as the ground electrode, and bury a grounding resistance reducing agent around the ground electrode. However, since the active ingredient of the grounding resistance reducer is water-soluble salts, the active ingredient is washed away by groundwater over time, causing the grounding resistance value to exceed the permissible range. The disadvantage is that repair work is required.
本発明の目的は、接地抵抗低減剤の有効成分が地下水に
より流失しても、有効成分を補給して不経済な補修工事
を省くために、接地極周辺に給水するための給水装置を
設備するものである。An object of the present invention is to install a water supply device for supplying water around a grounding electrode in order to replenish the active ingredient and eliminate uneconomical repair work even if the active ingredient of a grounding resistance reducing agent is washed away by underground water. It is something.
本発明を図面にもとづき説明する。The present invention will be explained based on the drawings.
第１図は、縦横共約１ｍ、深さ約８０ｃｍの穴１を掘り
、リード線３の一端を溶接した接地板２（９０ｃｍ角、
厚さ１．４ｍｍ）を穴底に平らに置いたときの平面図で
、第２図は第１図Ａ−Ａ線の断面を示す。リード線３の
一端は地上に出して目的物に接続する。Figure 1 shows a ground plate 2 (90 cm square,
FIG. 2 is a plan view of a material (1.4 mm thick) placed flat on the bottom of a hole, and FIG. 2 shows a cross section taken along line A-A in FIG. 1. One end of the lead wire 3 is brought out above the ground and connected to a target object.
第３図、第４図の平面図はなくても内容が理解できるの
で、第１図Ａ−Ａ線の断面を利用して説明を続ける。Since the content can be understood without the plan views of FIGS. 3 and 4, the explanation will be continued using the cross section taken along the line A-A in FIG. 1.
第３図は、接地板２の上下を設地抵抗低減剤４で包囲し
たときの断面を示す。ここまでは、從来の接地工法で、
第４図に関する部分が本発明である。FIG. 3 shows a cross section when the upper and lower sides of the grounding plate 2 are surrounded by the grounding resistance reducing agent 4. Up to this point, we have used the traditional grounding method.
The part related to FIG. 4 is the present invention.
第４図は、接地抵抗低減剤４の上面中央部に、大きさ数
ミリぐらいの砂の適量を、給水管５の外径より広めに散
布し、その砂６の上に給水管５を立てたところを示す。Fig. 4 shows that an appropriate amount of sand, about several millimeters in size, is sprinkled on the center of the upper surface of the grounding resistance reducing agent 4 in a manner wider than the outer diameter of the water supply pipe 5, and the water supply pipe 5 is placed on top of the sand 6. Show where you are.
最後に、給水管が倒れないように埋戻して地下の作業を
終える。Finally, the underground work is completed by backfilling the water supply pipes to prevent them from collapsing.
給水管５の先端は、接地板直止部が便利であるが、建造
物などの障害物がある場所では、地下の配管を工夫して
適当な地上に出す。It is convenient for the tip of the water supply pipe 5 to be connected directly to a ground plate, but in places where there are obstacles such as buildings, underground piping can be devised and brought out to a suitable location above ground.
地上に出した給水管５の先端は、透明な容器に接続して
水位の確認を容易にする。The tip of the water supply pipe 5 extended above the ground is connected to a transparent container to facilitate confirmation of the water level.
一定の水位まで予め注水しておくか、接地抵抗が上昇し
たとき注水するかは、管理責任者の判断にまかせる。It is up to the administrator to decide whether to inject water up to a certain level in advance or to inject water when ground resistance increases.
給水管５の材質は、塩類水溶液に耐える合成樹脂製のも
のが良い。The water supply pipe 5 is preferably made of synthetic resin that can withstand aqueous salt solutions.
大きさ数ミリの砂６の代りに、ステンレス鋼の切り屑あ
るいは炭素粒なども効果的である。Instead of sand 6 with a size of several millimeters, stainless steel chips or carbon grains are also effective.
從来の接地工法では、有効成分の流失による接地抵抗の
上昇はさけられないが、本発明を採用すれば、たとえ有
効成分が流失して接地抵抗が上昇しても、有効成分の補
給が容易なため高価な補修工事が省ける。In the conventional grounding method, it is unavoidable that the grounding resistance increases due to the loss of active ingredients, but if the present invention is adopted, even if the active ingredients are washed away and the grounding resistance increases, it is easy to replenish the active ingredients. Therefore, expensive repair work can be avoided.
第１図は穴底に接地板を平らに置いたところの平面図、
第２図は第１図Ａ−Ａ線の断面図、第３図は接地板を接
地抵抗低減剤で包囲したときの断面図、第４図は給水管
を立てたときの断面図を示す。
１…穴、２…接地板、３…リード線、４…接地抵抗低減
剤、５…給水管、６…砂Figure 1 is a plan view of the ground plate placed flat on the bottom of the hole.
FIG. 2 is a sectional view taken along the line A-A in FIG. 1, FIG. 3 is a sectional view when the ground plate is surrounded by a grounding resistance reducing agent, and FIG. 4 is a sectional view when the water supply pipe is erected. 1... Hole, 2... Ground plate, 3... Lead wire, 4... Ground resistance reducer, 5... Water supply pipe, 6... Sand
Claims (1)
設備する接地工法A grounding method in which a water supply device is installed around the ground electrode to supply an aqueous salt solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25171687A JPH0195479A (en) | 1987-10-07 | 1987-10-07 | Grounding construction equipped with water supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25171687A JPH0195479A (en) | 1987-10-07 | 1987-10-07 | Grounding construction equipped with water supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0195479A true JPH0195479A (en) | 1989-04-13 |
Family
ID=17226926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25171687A Pending JPH0195479A (en) | 1987-10-07 | 1987-10-07 | Grounding construction equipped with water supply device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0195479A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5611871A (en) * | 1979-07-10 | 1981-02-05 | Yonshin Denki Kk | Method of reducing grounding resistance using colloid carbon |
| JPS62113373A (en) * | 1985-11-12 | 1987-05-25 | 禹 修権 | Electrical grounding installation |
-
1987
- 1987-10-07 JP JP25171687A patent/JPH0195479A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5611871A (en) * | 1979-07-10 | 1981-02-05 | Yonshin Denki Kk | Method of reducing grounding resistance using colloid carbon |
| JPS62113373A (en) * | 1985-11-12 | 1987-05-25 | 禹 修権 | Electrical grounding installation |
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