KR20080104104A - Pad for the reduction of ground resistance - Google Patents

Pad for the reduction of ground resistance Download PDF

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KR20080104104A
KR20080104104A KR1020080109251A KR20080109251A KR20080104104A KR 20080104104 A KR20080104104 A KR 20080104104A KR 1020080109251 A KR1020080109251 A KR 1020080109251A KR 20080109251 A KR20080109251 A KR 20080109251A KR 20080104104 A KR20080104104 A KR 20080104104A
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pad
ground resistance
resistance reducing
ground
grounding
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KR1020080109251A
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Korean (ko)
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임성황
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임성황
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
    • H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors

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  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Electrical Connectors (AREA)

Abstract

A pad for reducing ground resistance is provided to supply a method for accurately mixing ground resistance reducing material with water and reduce installation time and construction costs. A ground resistance reducing material(11) is made in a pad type and mixed with water at a predetermined ratio. A form maintaining envelop(21) is made of an envelop having holes through which moisture receiving the ground resistance reducing material goes in/out. A moisture protection envelop is made of material for preventing moisture surrounding the outside of the ground resistance reducing pad from passing to block the moisture of the ground resistance reducing material from being gone out.

Description

접지저항저감패드{Pad for the reduction of ground resistance}Pad for the reduction of ground resistance}

접지저항저감제 제조 및 시공분야Ground resistance reducing agent manufacturing and construction

전기설비, 통신설비, 구조물에 전기선로 고장전류, 낙뢰 등과 같은 비정상적인 전류의 흐름이 발생할 경우 해당설비에는 전위상승이 발생하는데 이 전위상승을 막기 위하여 접지설비를 추가하고 접지저항을 낮추기 위하여 접지저항저감제를 개발하여 널리 사용 중이다. 출원번호 10-2001-0079088[접지저항저감제], 10-2004-0031233[접지저항저감제 조성물], 10-2005-0019961[접지저항저감제] 등에서 접지저항저감제의 구성성분과 각 구성성분의 배합비율 등에 관한 발명을 제시하였다. 지금까지의 이 분야에 대한 기술은 접지저항저감제의 구성성분과 각 구성성분의 배합비율에 관한 것이 대부분이고 시공을 고려한 제품에 대한 발명은 없다. 특히 접지저항은 접지도체 인근의 흡수율과 밀접한 관련이 많은데 접지저항저감제에 약간의 보습제가 들어갈 뿐 보습제를 패드형태로 별도로 시공하는 발명은 없는 실정이다.In case of abnormal current flow such as electric line fault current, lightning, etc. in electric equipment, communication equipment, structure, potential rises in the equipment, and in order to prevent the potential rise, the grounding resistance is added to reduce the ground resistance. It is developed and widely used. Components and Ground Components of Grounding Resistance Reducing Agents in Application Nos. 10-2001-0079088 [Ground Resistance Reducing Agent], 10-2004-0031233 [Grounding Resistance Reducing Agent Composition], 10-2005-0019961 [Grounding Resistance Reducing Agent] The invention regarding compounding ratio of etc. was proposed. The technology in this field so far is mostly about the components of the earth resistance reducing agent and the mixing ratio of each component, and there is no invention about the product considering the construction. In particular, the ground resistance is closely related to the absorption rate near the ground conductor. However, there is no invention in which the moisturizer is separately installed in the form of a pad as only a slight moisturizer enters the ground resistance reducer.

본 발명에서는 접지저항저감제 시공에 있어서 규정에 따른 정확한 물과 접지저항저감제 배합을 적용할 수 있는 방안을 강구하며 시공시간을 단축할 수 있도록 미리 만들어진 접지저항저감패드를 사용하도록 하여 공사비를 획기적으로 절감할 수 있도록 한다. 그리고 보습제패드를 추가하여 땅속으로 들어오는 물을 접지도체 인근에 장기간 머금고 있도록 하여 접지저항의 저감이 지속적으로 나타나고 접지저항저감제의 활용성을 높이도록 한다. 그리고 접지저항저감제패드의 보호체를 추가하여 접지저항을 더욱더 저감시킨다.In the present invention, in the construction of the ground resistance reducing agent, a method to apply the correct water and ground resistance reducing agent combination according to the regulations is devised, and the construction cost is reduced by using a pre-made ground resistance reducing pad to shorten the construction time. To save money. Also, by adding a moisturizing pad, the water coming into the ground stays in the vicinity of the grounding conductor for a long time, and the reduction of grounding resistance appears continuously and the utilization of the grounding resistance reducing agent is increased. In addition, the ground resistance is further reduced by adding a shield of the ground resistance reducing pad.

접지저항저감제와 보습제를 패드형태로 만들어 접지도체 아래에 깔거나 위에 덮어서 해결함It is solved by laying the earth resistance reducing agent and the moisturizer in the form of a pad and laying it under or covering the ground conductor.

전기설비, 통신설비, 구조물 등에 접지설비는 고장전류, 낙뢰 등으로 인한 이상전위상승 발생시 전하를 다른 지역으로 퍼지게 하여 전위상승을 억제하여 전기설비, 통신설비, 구조물 등을 안전하게 지키도록 하는 안전장치이다. 따라서 접지저항을 저감시키는 것은 설비보호를 위하여 매우 중요하다. 기존에 접지저항저감제(11)의 구성물과 배합비율에 대한 발명은 많았지만 이를 유용하게 시공에 적용시키는 상품은 없었다. 본 발명에서는 접지저항저감제(11)의 배합비율을 규정에 따라 잘 적용하여 미리 시공형상으로 접지저항저감패드(20)를 만들어 놓 고 시공시에는 접지도체(10) 아래에 깔거나 위에 덮는 간단한 작업으로 접지저항저감제 시공을 할 수 있도록 하여 시공시간을 획기적으로 단축시켜 공사비를 상당히 절감할 수 있도록 하였고 접지저항저감제 시공두께를 균일하게 하여 접지성능 향상에 매우 기여할 수 있도록 하였다.Grounding equipment for electrical equipment, communication equipment, structures, etc. is a safety device that safeguards electrical equipment, communication equipment, structures, etc. by suppressing potential rise by spreading electric charges to other areas when abnormal potential rises due to fault current or lightning. . Therefore, reducing ground resistance is very important for facility protection. Conventionally, there were many inventions about the composition and the mixing ratio of the ground resistance reducing agent (11), but there was no product which could be usefully applied to the construction. In the present invention, by applying the compounding ratio of the ground resistance reducing agent (11) well according to the regulations, the ground resistance reducing pad (20) is made in advance in the construction shape, and during construction, a simple spreading or covering under the ground conductor (10). By reducing the grounding time, the construction time can be significantly reduced by the construction of the ground resistance reducing agent, and the thickness of the grounding resistance reducing agent can be made uniform to contribute to the improvement of the grounding performance.

도 1은 기존의 접지저항저감제 시공 사례 설명도이다. 접지시공을 할 경우 구덩이를 파고 바닥에 거푸집(12)을 짜고 그 안에 접지저항저감제(11)를 시공하되 접지저항저감제(11) 가운데에 접지도체(10)가 놓이도록 시공한다. 접지도체(10)와 접지저항저감제(11) 시공이 완료되면 되메움흙(13)으로 구덩이를 메워 접지시공을 완료한다. 이 경우 접지저항저감제와 배합되는 물의 비율을 정확하게 맞추어 시공하는 것이 어렵고 접지저항저감제 시공 두께를 일정하게 하기 어렵고 현장에서 시공을 하면 시간이 많이 걸리므로 공사비가 매우 높아지는 결과를 초래한다.       1 is an explanatory view of a conventional grounding resistance reducing agent construction example. In case of ground construction, dig a pit and squeeze the formwork 12 on the floor and install the ground resistance reducer 11 in it, but install the ground conductor 10 in the middle of the ground resistance reducer 11. When the ground conductor 10 and the ground resistance reducing agent (11) construction is completed, fill the pit with backfilling soil (13) to complete the ground construction. In this case, it is difficult to construct the correct proportion of water to be mixed with the grounding resistance reducing agent, and it is difficult to make the thickness of the grounding resistance reducing agent constant, and the construction cost is very high because the construction takes a lot of time in the field.

도 2는 본 발명의 접지저항저감패드 설명도이다. 규정된 비율로 물과 배합된 접지저항저감제(11)를 패드형태로 만들고 이 패드를 형상유지봉투(21)에 넣어 일정한 형상을 유지하도록 하여 접지저항저감패드(20)를 완성시킨다. 접지저항저감제(11)가 지니고 있는 수분의 유출을 막기 위하여 접지저항저감패드(20)를 수분의 통과를 차단시킬 수 있는 재질로 만든 수분보호봉투(22)로 외곽을 감싸도록 포장하여 둔다. 형상유지봉투(21)는 시공시 접지도체(10)와 접하게 되고 내부에 수용된 접지저항저감제(11)에 수분을 제공해야 하므로 수분의 출입이 가능한 다공질 봉투로 만들며 땅속에서 상당기간 형상을 유지하도록 잘 썩지 않는 망사형태의 재질을 선택한다. 접지저항을 더욱 저감시키기 위하여 금속망사형태를 선택할 수도 있다. 수분보호봉투(22)는 일종의 포장지로서 시공시에는 이 것을 찢어내고 내부에 수용된 접지저항저감패드(20)를 인출하여 시공하도록 한다. 접지저항저감제(11)의 배합비율을 규정에 따라 잘 적용하여 미리 시공형상으로 접지저항저감패드(20)를 만들어 놓고 시공시에는 접지도체(10) 아래에 깔거나 위에 덮는 간단한 작업으로 접지저항저감제 시공을 할 수 있도록 하여 시공시간을 획기적으로 단축시켜 공사비를 매우 절감할 수 있도록 한다.       2 is an explanatory view of the ground resistance reducing pad of the present invention. A ground resistance reducing pad (11) blended with water at a prescribed ratio is formed into a pad shape, and the pad is placed in the shape holding bag (21) to maintain a constant shape to complete the ground resistance reducing pad (20). In order to prevent the leakage of water that the ground resistance reducing agent 11 has, the ground resistance reducing pad 20 is wrapped to surround the outer surface with a moisture protection bag 22 made of a material capable of blocking the passage of moisture. The shape retaining bag 21 is in contact with the grounding conductor 10 during construction and should provide moisture to the grounding resistance reducing agent 11 contained therein, so that it is made of a porous bag that can enter and exit the moisture and maintain the shape in the ground for a long time. Choose a mesh material that does not rot easily. Metal mesh type may be selected to further reduce the ground resistance. Moisture protection bag 22 is a kind of wrapping paper during construction to tear it out and to take out the ground resistance reduction pad 20 accommodated therein to construct. Apply the mixing ratio of the ground resistance reducing agent (11) well according to the regulations to make the grounding resistance reducing pad (20) in the construction shape in advance, and during construction, grounding resistance by simple operation to lay or cover the grounding conductor (10) below. By making it possible to reduce the construction time, the construction time can be drastically reduced so that the construction cost can be greatly reduced.

도 3은 보습제가 추가된 접지저항저감패드 단면 설명도이다. 도2에서 도시된 접지저항저감패드(20)의 형상유지봉투(21)안에 접지저항저감제(11)와 보습제패드(31)가 함께 내장된 것이 다르다. 보습제패드(31)는 시공후 땅속에서 땅속으로 들어오는 물을 흡수하여 저장하였다가 서서히 주변으로 물을 내놓는 작용을 하여 접지저항저감제(11)나 접지도체(10)가 항상 습기와 접할 수 있도록 한다. 보습제패드(31)는 물과 고흡수성폴리머, 우레탄발포제(스펀지), 종이, 천의 조합으로 만들 수 있다. 고흡수성폴리머는 식물을 가꾸기 위한 인공토양 및 땅의 보습제로 널리 사용되고 자신의 부피의 약100배 정도의 물을 흡수하는 성질이 있으므로 보습제패드(31)의 구성원으로 매우 유용하게 사용될 수 있다. 나머지 설명은 도2와 같다.       3 is an explanatory diagram of a cross section of the ground resistance reducing pad to which a moisturizer is added. The ground resistance reducing agent 11 and the moisturizing pad 31 are incorporated together in the shape holding bag 21 of the ground resistance reducing pad 20 shown in FIG. The moisturizing pad 31 absorbs and stores the water coming into the ground from the ground after construction, and gradually releases the water to the surroundings so that the ground resistance reducing agent 11 or the grounding conductor 10 is always in contact with moisture. . The moisturizer pad 31 may be made of a combination of water, a super absorbent polymer, a urethane foaming agent (sponge), paper, and cloth. The superabsorbent polymer is widely used as a moisturizer for artificial soil and land for planting, and has a property of absorbing water of about 100 times its volume, and thus can be very useful as a member of the moisturizer pad 31. The rest of the description is the same as in FIG.

도 4는 덮개형보호체가 추가된 접지저항저감패드 설명도이다. 접지저항저감패드(20)가 시공되었을 경우 토압에 의해 접지저항저감패드(20)가 형체를 잃어버리고 내부에 수용한 접지저항저감제(11)나 보습제패드(31)가 쓸려 가는 것을 막기 위하여 토압을 이겨주도록 접지저항저감패드(20) 상부 또는 접지저항저감패드(20)를 덮도록 설치되는 덮개형보호체(41)를 추가한 것이다. 덮개형보호체(41)는 평판(미도시) 또는 디귿자 덮개형상으로 만들어지며 다수의 구멍(미도시)이 뚫어져 있어서 주변의 땅과 내부에 수용한 접지저항저감패드(20)가 수분을 매개로 전기적으로 통할 수 있는 구조로 만든다. 그리고 접지도체(10)의 접지성능을 보강하기 위하여 도체로 만들 수도 있다.        4 is an explanatory diagram of a ground resistance reducing pad to which a cover type protector is added. When the ground resistance reducing pad 20 is constructed, the earth resistance pressure reducing pad 20 loses its shape due to earth pressure, and the earth pressure reducing agent 11 or the moisturizing pad 31 accommodated therein is prevented from being washed away. To cover the top of the ground resistance reducing pad 20 or the ground resistance reducing pad 20 is installed to cover the cover type protection (41) is added. The cover type protector 41 is made of a flat plate (not shown) or a recessed cover shape, and a plurality of holes (not shown) are drilled, so that the ground resistance reducing pad 20 accommodated in the surrounding ground and the inside is mediated with moisture. It is made of structure which can be electrically connected. And to reinforce the grounding performance of the grounding conductor 10 may be made of a conductor.

도 5는 통형보호체가 추가된 접지저항저감패드 설명도이다. 도4와 유사하나 접지저항저감패드(20) 보호체가 접지저항저감패드(20)를 내부에 수용하는 통형보호체(51)인 것이 다르다. 나머지 설명은 도4와 동일하다.       5 is an explanatory diagram of a ground resistance reducing pad to which a cylindrical protector is added. Although similar to FIG. 4, the protective body of the ground resistance reducing pad 20 is a cylindrical protective body 51 accommodating the ground resistance reducing pad 20 therein. The rest of the description is the same as in FIG.

도4와 도5에서 토압을 이겨주도록 접지저항저감패드(20) 상부 또는 접지저항저감패드(20)를 덮도록 덮개형보호체(41) 또는 접지저항저감패드(20)를 내부에 수용하는 통형보호체(51)가 추가 설치될 수 있다.      4 and 5, a tubular housing accommodating a cover type protector 41 or a ground resistance reduction pad 20 therein to cover the upper portion of the ground resistance reduction pad 20 or the ground resistance reduction pad 20 to overcome the earth pressure. The protector 51 may be additionally installed.

도 6은 접지성능향상침이 추가된 접지저항저감패드 설명도이다. 접지저항저감패드(20) 보호체의 외부면에 접지성능향상침(61)을 추가하여 접지도체(10)의 접지성능을 한층 향상시킨 사례이다. 접지성능향상침(61)은 끝이 뾰쪽한 도체재질의 침의 형상을 하며 덮개형보호체(41) 또는 통형보호체(51)의 외부표면에 부착된다.       6 is an explanatory diagram of a ground resistance reducing pad to which a grounding performance improving needle is added. The grounding resistance reduction pad 20 is an example of improving the grounding performance of the grounding conductor 10 by adding a grounding performance improving needle 61 to the outer surface of the protective body. The grounding performance improving needle 61 has the shape of a needle having a sharp conductive material and is attached to the outer surface of the cover type protector 41 or the cylindrical protector 51.

도 7은 본 발명의 접지저항저감패드 시공 사례 설명도이다. 그림에서는 접지저항저감패드(20)를 접지도체(10) 상하에 하나씩 시공한 단면을 보여준다. 때에 따라서는 접지도체(10) 상부 또는 하부에 하나의 접지저항저감패드(20)를 시공할 수도 있다.  7 is an explanatory diagram illustrating a construction example of a ground resistance reducing pad according to the present invention. In the figure, the ground resistance reducing pad 20 is shown one by one above and below the ground conductor 10. In some cases, one ground resistance reducing pad 20 may be installed above or below the ground conductor 10.

도 1은 기존의 접지저항저감제 시공 사례 설명도이다.      1 is an explanatory view of a conventional grounding resistance reducing agent construction example.

도 2는 본 발명의 접지저항저감패드 설명도이다.      2 is an explanatory view of the ground resistance reducing pad of the present invention.

도 3은 보습제패드가 추가된 접지저항저감패드 단면 설명도이다.      3 is an explanatory view of a cross section of the ground resistance reducing pad to which a moisturizing pad is added.

도 4는 덮개형보호체가 추가된 접지저항저감패드 설명도이다.     4 is an explanatory diagram of a ground resistance reducing pad to which a cover type protector is added.

도 5는 통형보호체가 추가된 접지저항저감패드 설명도이다.     5 is an explanatory diagram of a ground resistance reducing pad to which a cylindrical protector is added.

도 6은 접지성능향상침이 추가된 접지저항저감패드 설명도이다.     6 is an explanatory diagram of a ground resistance reducing pad to which a grounding performance improving needle is added.

도 7은 본 발명의 접지저항저감패드 시공 사례 설명도이다.     7 is an explanatory diagram illustrating a construction example of a ground resistance reducing pad according to the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

10 : 접지도체 11 : 접지저항저감제10: grounding conductor 11: earth resistance reducing agent

12 : 거푸집 13 : 되메움흙12: formwork 13: backfilling soil

20 : 접지저항저감패드 21 : 형상유지봉투 20: ground resistance reducing pad 21: shape holding bag

22 : 수분보호봉투 31 : 보습제패드22: moisture protection bag 31: moisturizing pad

41 : 덮개형보호체 51 : 통형보호체 41: cover type protector 51: cylindrical protector

61 : 접지성능향상침61: grounding performance improving needle

Claims (5)

규정된 비율로 물과 배합되고 패드형태로 만들어 진 접지저항저감제(11)와 패드형태로 만들어 진 접지저항저감제(11)를 수용하는 수분의 출입이 가능한 다공질 봉투로 만들어 지는 형상유지봉투(21)로 완성되는 접지저항저감패드(20)와; 접지저항저감제(11)가 지니고 있는 수분의 유출을 막기 위하여 접지저항저감패드(20)의 외곽을 감싸는 수분의 통과를 차단시킬 수 있는 재질로 만든 수분보호봉투(22)로 구성되는 것을 특징으로 하는 접지저항저감패드.           Shape retaining bag made of a porous bag that can enter and exit the ground resistance reducing agent (11) made in pad form and ground resistance reducing agent (11) made in pad form and mixed with water at a prescribed ratio ( A ground resistance reducing pad 20 completed with 21); Characterized in that it consists of a moisture protection bag (22) made of a material that can block the passage of moisture surrounding the outside of the ground resistance reduction pad 20 to prevent the leakage of water with the ground resistance reducing agent (11). Ground resistance reducing pad. 제1항에 있어서, 형상유지봉투(21) 내부에 보습제패드(31)가 추가되어 구성되는 것을 특징으로 하는 접지저항저감패드.             The grounding resistance reduction pad according to claim 1, wherein a moisturizing pad (31) is added inside the shape maintaining bag (21). 제1항에 있어서, 토압을 이겨주도록 접지저항저감패드(20) 상부 또는 접지저항저감패드(20)를 덮도록 설치되는 덮개형보호체(41) 또는 접지저항저감패드(20)를 내부에 수용하는 통형보호체(51)가 추가로 구성되는 것을 특징으로 하는 접지저항저감패드.             The method of claim 1, wherein the cover-type protector 41 or the ground resistance reduction pad 20 is installed therein to cover the ground resistance reduction pad 20 or the ground resistance reduction pad 20 to overcome the earth pressure. The tubular protector 51 is further configured to reduce the ground resistance pad. 제2항에 있어서, 보습제패드(31)가 물과 고흡수성폴리머, 우레탄발포제(스펀지), 종이, 천의 조합으로 구성되는 것을 특징으로 하는 접지저항저감패드.           3. A ground resistance reducing pad according to claim 2, wherein the moisturizing pad (31) is composed of a combination of water, a super absorbent polymer, a urethane foaming agent (sponge), paper, and cloth. 제3항에 있어서, 덮개형보호체(41) 또는 통형보호체(51) 외부표면에 설치되는 끝이 뾰쪽한 도체재질의 침의 형상을 하는 접지성능향상침(61)이 추가로 구성되는 것을 특징으로 하는 접지저항저감패드.           4. The grounding performance improving needle 61 is formed in the shape of a needle of a pointed conductor material provided on the outer surface of the cover type protector 41 or the cylindrical protector 51. Characterized by a ground resistance reduction pad.
KR1020080109251A 2008-11-05 2008-11-05 Pad for the reduction of ground resistance KR20080104104A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117096629A (en) * 2023-08-25 2023-11-21 江苏安全技术职业学院 Electric power safety earthing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117096629A (en) * 2023-08-25 2023-11-21 江苏安全技术职业学院 Electric power safety earthing device
CN117096629B (en) * 2023-08-25 2024-04-19 江苏安全技术职业学院 Electric power safety earthing device

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