KR100958170B1 - Base structure with common ground for streetlight columns - Google Patents

Abstract

The present invention relates to a base structure of a street lamp column that can be connected to a concrete block, a plurality of anchor bolts are installed to be exposed to the upper part of the concrete block to be coupled to the street lamp holder pedestal to securely install the street lamp pole, and in the concrete block A conduit tube having an upper surface and a side surface connected to each other such that a supply wire, a supply junction wire, a discharge wire, and a discharge connection ground line pass through the wire, and an electrical connection with the supply connection ground wire and the discharge connection ground wire on an upper portion of the concrete block. A ground connection plate formed to be connected, a fixed ground line connected to the ground connection plate inside the street lamp and connected in parallel with the supply connection ground line and the discharge connection ground line, and electrically connected to the fixed ground line on the lower surface of the concrete block. It includes a ground plate that is installed to be connected. Therefore, the ground resistance is lowered by connecting the plurality of street lamps in parallel so as to be connected in parallel, thereby preventing various safety accidents through the street lamps during a short circuit.

Description

Base structure with common ground for streetlight columns}

The present invention relates to a foundation structure for street lamps, and more particularly, to a ground structure of street lamps capable of a ground connection capable of reducing grounding resistance by continuously connecting a plurality of street lamps as well as individual grounding.

Various streetlight columns are installed on the streetlight base structure consisting of anchor bolts, supply wires, discharge wires, and concrete blocks. In order to prevent various safety accidents due to electricity caused by human contact when the electric wires installed on the street lamps are shorted, the street lamps must be grounded through the street lamp base according to a predetermined rule. This is inevitably provided in order to prevent various safety accidents caused by such electricity because the street lamp is a short-circuit wire contact the person is in contact with the electricity flows, leading to an unexpected big accident. Therefore, in the country, the statutory law sets street lamps to be kept below three types of ground, 100Ω.

Street lamps according to the prior art were grounded by embedding a ground plate that is exposed to the bottom when the concrete block is cured and electrically connected to the ground wire. In the above grounding resistance is different depending on the density of the soil. In other words, if the soil density is large, the resistance value is low, and if the soil density is small, such as Masato, the resistance value is increased.

When the grounding resistance is increased in the above, there is a problem that the grounding efficiency is deteriorated, and thus various safety accidents through the streetlight column are not prevented when the earth leakage occurs.

Accordingly, it is an object of the present invention to provide a ground structure of a street lamp column capable of a ground connection that can reduce the ground resistance irrespective of the state of the soil to prevent various safety accidents through the street lamp column in the event of a short circuit.

In order to achieve the above object, the base structure of the streetlights capable of being connected to each other according to the present invention includes a concrete block and a plurality of anchor bolts which are installed to be partially exposed to the concrete block to be combined with the street lamp holders to fix the lamp holders to be fixed. And a conduit tube having an upper surface and a side surface connected to each other such that a supply wire and a supply junction line and a discharge wire and a discharge junction line pass in the concrete block, respectively, and the supply connection ground line and the discharge line above the concrete block. A ground connection plate formed to be electrically connected to a connection ground wire, a fixed ground wire connected to the ground connection plate inside the street lamp pole and connected in parallel with the supply connection ground wire and the discharge connection ground wire, and the lower surface of the concrete block. Includes a ground plate installed in electrical connection with the fixed ground wire The.

In the above, the ground connecting plate is formed of a copper plate having a triangular structure so as to be electrically connected in parallel with the fixed ground wire, the supply connection ground wire and the discharge connection ground wire.

Therefore, the present invention lowers the grounding resistance by connecting a plurality of street lamps in parallel so as to be connected in parallel, thereby preventing various safety accidents through the street lamps during a short circuit.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of the foundation structure of the street lamp can be connected in accordance with the present invention, Figure 2 is a cross-sectional view taken in line AA of Figure 1, Figure 3 is connected to the ground structure of the street lamp can be connected in accordance with the present invention It is a perspective view which shows the state.

The foundation structure of the streetlight column capable of connecting the ground according to the present invention is installed so that a part of the concrete block 40 and the concrete block 40 are exposed to the upper part, and the street lamp column 100 is fixedly installed by being combined with the street lamp column pedestal 110. A plurality of anchor bolts 50 and the supply wire 60 and supply connection ground line 10 and the discharge wire 60 'and the discharge connection ground line 10' in the concrete block 40 are respectively Conduits 20 and 20 'are installed so that the upper and side surfaces thereof are connected to each other, and electrically connected to the supply connection ground line 10 and the discharge connection ground line 10' at the upper portion of the concrete block 40. The ground connection plate 30 and a fixed ground wire connected to the ground connection plate 30 inside the street lamp 100 and connected in parallel with the supply connection ground line 10 and the discharge connection ground line 10 ′ ( 12) and the fixed ground wire 12 and the lower surface of the concrete block 40 Ground plate 70 is installed to be electrically connected.

The supply connection ground line 10 and the discharge connection ground line 10 ′ connected to the ground connection plate 30 in the above are respectively connected to ground connection plates (not shown) formed in the foundation structure (not shown) of the street lamps. Is electrically connected to the In addition, since the fixed ground wire 12 is also connected to the ground connecting plate 30, the fixed ground wire 12 is electrically connected in parallel with the supply connection ground wire 10 and the discharge connection ground wire 10 '. Thus, the ground connecting plate 30 may be formed of a copper plate having a triangular structure so as to be electrically connected in parallel with the fixed ground wire 12, the supply connection ground wire 10, and the discharge connection ground wire 10 ′. .

Therefore, the street lamp 100 is grounded by the fixed ground wire 12, the supply connection ground line 10 and the discharge connection ground line 10 'electrically connected in parallel, and the ground resistance of the ground connection plate 30 is lowered. . Therefore, it is possible to prevent safety accidents such as an electric shock through the street lamp 100 when a short circuit.

In addition, in the foundation structure of the streetlight can be connected in accordance with the present invention is a state in which the fixed ground wire 12, the supply connection ground wire 10 and the discharge connection ground wire 10 'is electrically connected in parallel to the ground connection plate 30 In the mounting on the concrete block 40 to insert the anchor bolt 50 in the coupling hole 130 of the street lamp column pedestal 110 and then tighten the nut 120 to install the street lamp 100 to be fixed.

The conduit 20 'through which the supply wire 60 and the supply connection ground wire 10 pass together, the wire line 20' through which the discharge wire 60 'and the discharge connection ground wire 10' pass together. ) And a fixed grounding pipe (22) through which the fixed grounding wire (12) passes, so that there is no need for an individual grounding work for installing individual grounding, and to install an integrated streetlight foundation capable of connecting the grounding line and the fixed grounding wire simultaneously. Can be.

The foundation structure of the streetlight can be connected to the ground of the present invention is a guide pipe, such as the conduit (20, 20 ') and the fixed grounding tube 22 is built in the concrete block 40, the conduit (20, 20') and Since the wires 60 and 60 'and the ground lines 10, 10' and 12 are embedded in the guide pipe such as the fixed ground pipe 22, the installation is easy.

The ground plate 70 of the present invention is connected to the lower portion of the fixed ground 12 and is installed on the lower surface of the concrete block 40. The ground connecting plate 30 of the present invention is installed on the upper portion of the concrete block 40, and the supply connection ground wire 10, the discharge connection ground wire 10 'and the fixed ground wire 12 are integrally connected. .

The street lamp base of the present invention is composed of a concrete block 40 and is fixed in a state in which the street lamp 100 is projected on the upper portion of the concrete block 40, the anchor bolt 50 is integrally up to the bottom of the concrete block 40 It is buried, the ground plate 70 is installed in the lower portion of the concrete block 40. Anchor bolt 50 is preferably integrally embedded from the top to the bottom of the concrete block 40 in the streetlight base that can be connected to the ground of the present invention. In the street lamp base of the present invention, the upper part of the anchor bolt 50 protrudes to the upper part of the ground and is surrounded by the concrete block 40 except for the upper part of the protruding anchor bolt 50. Concrete block 40 is preferably a trapezoid in cross section, but can be implemented in various forms as needed. Street lamp 100 in the streetlight base of the present invention is coupled to the upper end of the anchor bolt (50).

In the street lamp base of the present invention, it is preferable to install a connection pipe on the upper part of the ground connection plate 30, and the connection pipe is fitted in the central hole of the street lamp 100. The streetlight base connector of the present invention is inserted into the central through hole of the street lamp 100, the wires 60, 60 'is connected to the street lamp via the central through the street lamp 100. When the electric wire is pulled between the street lamp and the street lamp by the fork-lane in the street lamp base of the present invention, after separating the street lamp 100 and put the hand or utensils into the connector can be a task to pull or further connect the wire.

In the street lamp base of the present invention, the wires 60 and 60 'are led out to the outside of the concrete block 40 via the conduits 20 and 20' and connected to other street lamps. In the street lamp base of the present invention, since there is another street lamp on the left and right sides of the lamppost, the wires 60 and 60 'are two, and the wires 60 and 60' denote wire cables. The coupling hole 130 of the street lamp 100 is coupled to the anchor bolt 50 and the nut 120 is coupled to the anchor bolt 50.

As described above, the present invention is only one embodiment, and the present invention is not limited to the above-described embodiments, and various modifications may be made by those skilled in the art within the technical spirit of the present invention. It is possible.

1 is a perspective view of the foundation structure of the streetlight can be connected in accordance with the present invention.

2 is a cross-sectional view taken along the line A-A of FIG.

Figure 3 is a perspective view showing a state in which the junction is connected in the foundation structure of the streetlight can be connected in accordance with the present invention.

DESCRIPTION OF THE REFERENCE NUMERALS

10: supply junction wire 10 ': discharge connection conductor

12: fixed ground wire 20, 20 ': conduit

22: fixed ground pipe

30: ground connection plate 40: concrete block

50: anchor bolt 60: supply wire

60 ': discharge wire 70: ground plate

100: street lamp 110: street lamp holder

120: nut 130: coupling hole

Claims (2)

Concrete blocks, A plurality of anchor bolts are installed to be exposed to the upper part of the concrete block is coupled to the street lamp holder pedestal fixedly to install the street lamp pole; A conduit tube installed so that an upper surface and a side surface are connected to each other so that the supply wire and the supply connection ground wire and the discharge wire and the discharge connection ground wire pass through the concrete block, respectively; A ground connection plate formed at an upper portion of the concrete block to be electrically connected to the supply connection ground line and the discharge connection ground line; A fixed ground wire connected to the ground connection plate inside the street lamp pole and connected in parallel with the supply connection ground wire and the discharge connection ground wire; The ground structure of the streetlight can be connected to the ground including a ground plate which is electrically connected to the fixed ground line on the lower surface of the concrete block. The ground structure of claim 1, wherein the ground connecting plate is formed of a copper plate having a triangular structure so as to be electrically connected in parallel with the fixed ground wire, the supply connecting ground wire, and the discharge connecting ground wire.

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