JP2011196067A - Solar cell array and method for constructing the same - Google Patents

Solar cell array and method for constructing the same Download PDF

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JP2011196067A
JP2011196067A JP2010062920A JP2010062920A JP2011196067A JP 2011196067 A JP2011196067 A JP 2011196067A JP 2010062920 A JP2010062920 A JP 2010062920A JP 2010062920 A JP2010062920 A JP 2010062920A JP 2011196067 A JP2011196067 A JP 2011196067A
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frame
solar cell
ground screw
cell array
ground
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JP5386414B2 (en
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Takashi Kamiyama
隆 神山
Hiroyuki Yoshino
博行 芳野
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Toshiba Plant Systems and Services Corp
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Toshiba Plant Systems and Services Corp
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/10—Photovoltaic [PV]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Abstract

PROBLEM TO BE SOLVED: To provide a solar cell array reducing operations of earth work, and a method for constructing the solar cell array.SOLUTION: A ground screw inserting hole is provided in a mounting crosspiece of a base formed of a conducting material; a frame of a solar cell module and the mounting crosspiece are electrically connected together by means of a ground screw; and an earth device is provided on the base and grounded. The ground screw inserting hole is provided in a cross range as a range in which the mounting crosspiece and the frame overlap each other. Any one of a drill screw a tapping screw and a bolt can be used as the ground screw.

Description

本発明は、接地工事の作業を軽減した太陽電池アレイ及び太陽電池アレイの施工方法に関する。   The present invention relates to a solar cell array and a solar cell array construction method in which grounding work is reduced.

近年、太陽光発電システムは地球温暖化防止の観点から急速に普及している。最近ではメガワット級の大規模発電所の建設がおこなわれるようになった。このような大規模太陽光発電施設においては、地上に設置した架台に数万枚規模の多数の太陽電池パネルを設置した太陽電池アレイが設けられる。   In recent years, photovoltaic power generation systems are rapidly spreading from the viewpoint of preventing global warming. Recently, large-scale power plants of megawatt class have been constructed. In such a large-scale solar power generation facility, a solar cell array in which a large number of tens of thousands of solar cell panels are installed on a stand installed on the ground is provided.

この太陽電池アレイは、まず地上に架台を設置し、この架台に太陽電池モジュールが１枚ずつ取り付けられる。太陽電池モジュールの架台への取り付けは、ボルトとナットにより太陽電池モジュールを架台の取付桟に締結する作業と、太陽電池モジュールのアースを取る接地工事が必要となる。   In this solar cell array, a gantry is first installed on the ground, and one solar cell module is attached to the gantry. The attachment of the solar cell module to the frame requires work for fastening the solar cell module to the frame mounting frame with bolts and nuts and grounding work for grounding the solar cell module.

従来の接地工事は、太陽電池モジュールを固定するボルトにアース線を接続し、このアース線を導電性の架台に接続し、架台を接地していた。   In the conventional grounding work, a ground wire is connected to a bolt for fixing the solar cell module, the ground wire is connected to a conductive base, and the base is grounded.

ここで、太陽電池モジュールのフレームは耐候性を上げるためにアルマイト処理などの絶縁被膜処理が施されている。従って、従来の工法では歯付座金を使用して絶縁被膜を破る必要があり、取付作業工数がかかるのみならず、材料費もかかり、太陽電池アレイの建設費用を押し上げるという問題点がある。   Here, the frame of the solar cell module is subjected to an insulating coating treatment such as alumite treatment in order to increase the weather resistance. Therefore, in the conventional construction method, it is necessary to break the insulating film using a toothed washer, which requires not only the mounting work man-hours, but also material costs, and increases the construction cost of the solar cell array.

この点に関し、タッピングネジを固定部材に固定し、この固定部材によって太陽電池モジュールを架台に取り付ける際に、タッピングネジの先端により太陽電池モジュールのフレームに施された絶縁被膜を傷つけることによって接地する技術が提案されている。   In this regard, a technique in which a tapping screw is fixed to a fixing member, and when the solar cell module is attached to the gantry by this fixing member, the tip of the tapping screw damages the insulating coating applied to the frame of the solar cell module to ground. Has been proposed.

しかし、この工法によっても、固定部材にタッピングネジを取り付ける作業が必要であり、固定部材の材料費もかかるという問題点がある。   However, this method also involves a problem that a tapping screw needs to be attached to the fixing member, and the material cost of the fixing member is also increased.

特開２００２−３６４１３６号公報JP 2002-364136 A

本発明は、接地工事の作業を軽減した太陽電池アレイ及び太陽電池アレイの施工方法を提供することを目的とする。   An object of this invention is to provide the construction method of the solar cell array which reduced the operation | work of grounding construction, and a solar cell array.

本発明は、絶縁物でコーティングされ、太陽電池パネルを固定するフレームを備える太陽電池モジュールと、絶縁物でコーティングされ、導電性材料によって形成され、フレームと重なる交差範囲に設けられる接地ネジ挿通孔を有する取付桟、導電性材料によって形成され、取付桟を導通可能に支持する架台支柱、及び架台支柱に電気的に接続され、接地される接地装置を備える架台と、フレームと取付桟とを締結するボルトとは別体に導電性材料によって形成され、軸部の外径以下の直径を有する接地ネジ挿通孔にねじ込まれることによりフレームのコーティングを破り、接地ネジ挿通孔と接触することにより、フレームと取付桟とを電気的に接続する接地ネジと、を備える太陽電池アレイを提供する。   The present invention includes a solar cell module including a frame coated with an insulator and fixing the solar cell panel, and a ground screw insertion hole provided in an intersecting range formed of a conductive material and overlapped with the frame. The mounting frame having the mounting frame, the mounting column that is formed of a conductive material and supports the mounting frame in a conductive manner, and the grounding device that is electrically connected to the mounting column and grounded, and the frame and the mounting frame are fastened. It is formed of a conductive material separately from the bolt and breaks the coating of the frame by being screwed into a ground screw insertion hole having a diameter equal to or less than the outer diameter of the shaft portion, and by contacting the ground screw insertion hole, the frame and Provided is a solar cell array including a ground screw that electrically connects a mounting bar.

本発明によれば、接地工事の工数が削減できるとともに、材料費を削減することができる、という効果がある。   According to the present invention, it is possible to reduce the number of times of grounding work and to reduce material costs.

本発明の太陽電池モジュールの架台の取付桟への取付部位の側面図である。It is a side view of the attachment site | part to the mounting frame of the mount frame of the solar cell module of this invention. 本発明の太陽電池モジュールの架台の取付桟への取付部位の底面図である。It is a bottom view of the attachment site | part to the attachment stand of the mount frame of the solar cell module of this invention. 本発明の架台に取り付けられた太陽電池モジュールを裏側から見た図である。It is the figure which looked at the solar cell module attached to the mount frame of this invention from the back side. 本発明の接地ネジの例を示す図である。It is a figure which shows the example of the grounding screw of this invention. 本発明のフレーム側接地ネジ挿通孔の直径を示す図である。It is a figure which shows the diameter of the flame | frame side grounding screw insertion hole of this invention. 取付桟の断面図である。It is sectional drawing of an attachment bar. 接地ネジにボルトを使用した場合の取付部位の側面図である。It is a side view of the attachment site | part at the time of using a volt | bolt for a ground screw. 接地ネジにボルトを使用した場合の取付部位の底面図である。It is a bottom view of the attachment site | part at the time of using a volt | bolt for a ground screw. 架台を示す図である。It is a figure which shows a mount. 本発明の架台の端部を示す図である。It is a figure which shows the edge part of the mount frame of this invention.

以下に、本発明の一実施形態に係る太陽電池アレイ及び太陽電池アレイの施工方法を、図面を参照して詳細に説明する。   Below, the construction method of the solar cell array which concerns on one Embodiment of this invention, and a solar cell array is demonstrated in detail with reference to drawings.

図１は、本発明の太陽電池モジュール１００の架台の取付桟３０への取付部位の側面図である。図２は、本発明の太陽電池モジュール１００の架台の取付桟３０への取付部位の底面図である。   FIG. 1 is a side view of a part where the solar cell module 100 of the present invention is attached to a mounting bar 30 of the frame. FIG. 2 is a bottom view of a site where the solar cell module 100 of the present invention is attached to the mounting frame 30 of the frame.

図１に示すように、太陽電池モジュール１００はアルマイト処理などの絶縁物でコーティングされたアルミニウム合金によって形成されるフレーム１０１に、太陽電池セル１０３が強化ガラス１０２とバックカバー１０４により挟み込まれた太陽電池パネルが固定されている。   As shown in FIG. 1, a solar cell module 100 is a solar cell in which a solar cell 103 is sandwiched between a tempered glass 102 and a back cover 104 in a frame 101 formed of an aluminum alloy coated with an insulator such as an alumite treatment. The panel is fixed.

このフレーム１０１にはフレーム側ボルト穴１０１Ｂが設けられ、取付桟３０には取付桟側ボルト穴３０Ｂが設けられる。   The frame 101 is provided with a frame side bolt hole 101B, and the mounting bar 30 is provided with a mounting bar side bolt hole 30B.

フレーム１０１の太陽電池パネルと対向する面が架台の取付桟３０に合わせられ、ボルト１０がフレーム側ボルト穴１０１Ｂ及び取付桟側ボルト穴３０Ｂに挿通される。太陽電池モジュール１００は取付桟３０に、このボルト１０、及びナット１２とワッシャ１１によって締結される。   The surface of the frame 101 facing the solar cell panel is aligned with the mounting frame 30 of the gantry, and the bolt 10 is inserted into the frame side bolt hole 101B and the mounting frame side bolt hole 30B. The solar cell module 100 is fastened to the mounting bar 30 by the bolt 10, the nut 12, and the washer 11.

取付桟３０には、さらに接地ネジ挿通孔３０Ａが設けられる。接地ネジ挿通孔３０Ａは、斜線にて示す取付桟３０とフレーム１０１とが重なる範囲である交差範囲Ａに設けられる。接地ネジ挿通孔３０Ａの内側は絶縁されていない。フレーム１０１にはフレーム側接地ネジ挿通孔１０１Ａが設けられていてもよい。   The mounting bar 30 is further provided with a ground screw insertion hole 30A. The ground screw insertion hole 30 </ b> A is provided in an intersecting range A that is a range where the mounting bar 30 and the frame 101 indicated by oblique lines overlap. The inside of the ground screw insertion hole 30A is not insulated. The frame 101 may be provided with a frame-side ground screw insertion hole 101A.

図３は、架台に取り付けられた太陽電池モジュール１００を裏側から見た図である。図３に示すように、接地ネジ挿通孔３０Ａは、１枚の太陽電池モジュール１００につき少なくとも１つ設けられる。   FIG. 3 is a view of the solar cell module 100 attached to the gantry as seen from the back side. As shown in FIG. 3, at least one ground screw insertion hole 30 </ b> A is provided for one solar cell module 100.

図４は、接地ネジ１の例を示す図である。図４に示すように、接地ネジ１はボルト１０とは別体に形成される。接地ネジ１はドリルねじを用いることができる。ドリルねじは、ドライバを嵌め込む頭部１Ａと、ネジ山を有する軸部１Ｂと、軸部１Ｂの先端に切り刃先１Ａと、を備える。   FIG. 4 is a diagram illustrating an example of the ground screw 1. As shown in FIG. 4, the ground screw 1 is formed separately from the bolt 10. The ground screw 1 can be a drill screw. The drill screw includes a head portion 1A into which a driver is fitted, a shaft portion 1B having a screw thread, and a cutting edge 1A at the tip of the shaft portion 1B.

ドリルねじを接地ネジ１として使用する場合にはフレーム側接地ネジ挿通孔１０１Ａを設けなくともよい。   When a drill screw is used as the ground screw 1, the frame-side ground screw insertion hole 101A need not be provided.

接地ネジ１は、いわゆるタッピングねじを用いることもできる。接地ネジ１にタッピングねじを用いる場合には、フレーム側接地ネジ挿通孔１０１Ａを設けることが望ましい。   As the ground screw 1, a so-called tapping screw can be used. When a tapping screw is used for the grounding screw 1, it is desirable to provide a frame-side grounding screw insertion hole 101A.

接地ネジ１は導電性の物質によって形成される。接地ネジ１は接地ネジ挿通孔３０Ａに挿通され、フレーム１０１を穿つことにより、取付桟３０とフレーム１０１とを電気的に接続する。すなわち、接地ネジ１はフレーム側接地ネジ挿通孔１０１Ａにねじ込まれることによりフレーム１０１のコーティングを破り、接地ネジ挿通孔３０Ａの内側と接触することにより、フレーム１０１と取付桟３０とを電気的に接続する。   The ground screw 1 is formed of a conductive material. The ground screw 1 is inserted into the ground screw insertion hole 30 </ b> A and pierces the frame 101 to electrically connect the mounting bar 30 and the frame 101. That is, the ground screw 1 is screwed into the frame-side ground screw insertion hole 101A to break the coating of the frame 101, and contacts the inside of the ground screw insertion hole 30A to electrically connect the frame 101 and the mounting bar 30. To do.

図５は、フレーム側接地ネジ挿通孔１０１Ａの直径を示す一例の図である。図５に示すように、フレーム側接地ネジ挿通孔１０１Ａの直径は、接地ネジ１の呼び、すなわち呼び径（ｍｍ）と、フレーム１０１の厚さ（ｍｍ）によって定まる。フレーム側接地ネジ挿通孔１０１Ａは軸部の外径以下の直径を有する。   FIG. 5 is a diagram illustrating an example of the diameter of the frame-side ground screw insertion hole 101A. As shown in FIG. 5, the diameter of the frame-side ground screw insertion hole 101 </ b> A is determined by the name of the ground screw 1, that is, the nominal diameter (mm) and the thickness (mm) of the frame 101. The frame-side ground screw insertion hole 101A has a diameter equal to or smaller than the outer diameter of the shaft portion.

接地ネジ１の呼びは２．９以上４．８以下が望ましい。これより小さいと作業がしづらく、これより大きいと材料費が高くなる。中でも呼び３．５が最も望ましい。   The nominal size of the ground screw 1 is preferably 2.9 to 4.8. If it is smaller than this, it is difficult to work, and if it is larger than this, the material cost becomes high. Nominal 3.5 is the most desirable.

接地ネジ１の呼びが３．５であるとき、フレーム側接地ネジ挿通孔１０１Ａの直径は２．５ｍｍ以上３．２ｍｍ以下であることが望ましい。   When the nominal size of the ground screw 1 is 3.5, the diameter of the frame-side ground screw insertion hole 101A is desirably 2.5 mm or more and 3.2 mm or less.

これより小さいと、接地ネジ１がねじ込まれたときにフレーム１０１が変形する可能性があり、これより大きいと接地がとれない場合がある。   If it is smaller than this, the frame 101 may be deformed when the ground screw 1 is screwed in, and if it is larger than this, there is a case where the ground cannot be obtained.

図６は、取付桟３０の断面図である。図６に示すように、取付桟３０には、図６（Ａ）に示すＬ型、図６（Ｂ）に示すＣ型、図６（Ｃ）に示すＺ型などがある。いずれの場合も、接地ネジ挿通孔３０Ａ及び取付桟側ボルト穴３０Ｂはフレーム１０１に接する面に設けられる。   FIG. 6 is a cross-sectional view of the mounting bar 30. As shown in FIG. 6, the mounting bar 30 includes an L type shown in FIG. 6 (A), a C type shown in FIG. 6 (B), a Z type shown in FIG. 6 (C), and the like. In any case, the ground screw insertion hole 30 </ b> A and the mounting rail side bolt hole 30 </ b> B are provided on the surface in contact with the frame 101.

図７は、接地ネジ１に接地用ボルト２を使用した場合の取付部位の側面図である。図８は、接地ネジ１に接地用ボルト２を使用した場合の取付部位の底面図である。図７及び図８に示すように、接地ネジ１に接地用ボルト２を使用する場合、フレーム側接地ネジ挿通孔１０１及びＡ接地ネジ挿通孔３０Ａの直径は、接地ネジ１の軸の外径、すなわち呼び径と等しい。フレーム側接地ネジ挿通孔１０１及び接地側は絶縁されていない。   FIG. 7 is a side view of an attachment site when the grounding bolt 2 is used for the grounding screw 1. FIG. 8 is a bottom view of the attachment site when the grounding bolt 2 is used for the grounding screw 1. 7 and 8, when the grounding bolt 2 is used for the grounding screw 1, the diameter of the frame side grounding screw insertion hole 101 and the A grounding screw insertion hole 30A is the outer diameter of the shaft of the grounding screw 1, That is, it is equal to the nominal diameter. The frame side ground screw insertion hole 101 and the ground side are not insulated.

接地用ボルト２は、ナット３によって締結される。フレーム１０１とナット３との間には、いわゆる歯付座金４が締結される。この歯付座金４は、歯が付いているため、締結するとフレーム１０１の絶縁層を傷つけて剥がす。   The grounding bolt 2 is fastened by a nut 3. A so-called toothed washer 4 is fastened between the frame 101 and the nut 3. Since the toothed washer 4 has teeth, when it is fastened, the insulating layer of the frame 101 is damaged and peeled off.

接地用ボルト２、ナット３、歯付座金４は導電性材料によって形成される。接地用ボルト２は、フレーム１０１と取付桟３０とを電気的に接続する。   The grounding bolt 2, the nut 3, and the toothed washer 4 are formed of a conductive material. The grounding bolt 2 electrically connects the frame 101 and the mounting bar 30.

図９は、架台４００を示す図である。架台４００には太陽電池モジュール１００が接地され、太陽電池アレイが形成される。   FIG. 9 is a diagram showing the gantry 400. The solar cell module 100 is grounded to the gantry 400 to form a solar cell array.

図１０は、架台４００の端部を示す図である。図１０に示すように、導電性材料によって形成される架台支柱３０Ｃには接地装置３１が設けられる。接地装置３１は、アース線３１Ａが架台支柱３０Ｃに電気的に接続され、先端には接地具３１Ｂが設けられる。接地具３１Ｂは地中に埋設されることにより接地する。   FIG. 10 is a diagram illustrating an end portion of the gantry 400. As shown in FIG. 10, a grounding device 31 is provided on a gantry post 30C formed of a conductive material. In the grounding device 31, the ground wire 31A is electrically connected to the gantry post 30C, and a grounding tool 31B is provided at the tip. The grounding tool 31B is grounded by being buried in the ground.

架台４００は、導電性材料により形成される。取付桟３０と架台支柱３０Ｃと導通可能に接続される。   The gantry 400 is made of a conductive material. The mounting bar 30 and the gantry post 30C are connected to each other so as to be conductive.

以上述べたように、本実施形態の太陽電池アレイ及び太陽電池アレイの施工方法は、導電性材料によって形成される架台４００の取付桟３０に接地ネジ挿通孔３０Ａを設け、太陽電池モジュール１００のフレーム１０１とこの取付桟３０とを接地ネジ１により電気的に接続し、架台４００に接地装置３１を設けて接地する。接地ネジ挿通孔３０Ａは取付桟３０とフレーム１０１とが重なる範囲である交差範囲Ａに設けられる。太陽電池モジュール１００は接地ネジ１により架台４００に接地される。   As described above, in the solar cell array and the solar cell array construction method according to the present embodiment, the ground screw insertion hole 30A is provided in the mounting bar 30 of the mount 400 formed of a conductive material, and the frame of the solar cell module 100 is provided. 101 and the mounting bar 30 are electrically connected by the ground screw 1, and the grounding device 31 is provided on the gantry 400 to be grounded. The ground screw insertion hole 30 </ b> A is provided in an intersection range A that is a range where the mounting bar 30 and the frame 101 overlap. The solar cell module 100 is grounded to the gantry 400 by the ground screw 1.

従って、接地工事の工数が、配線工事の工数分、或いは固定部材へのタッピングネジの取り付け工数分削減できるとともに、配線部材の材料費、乃至固定部材の材料費を削減することができる、という効果がある。   Therefore, the number of man-hours for grounding work can be reduced by the number of man-hours for wiring work or the number of man-hours for attaching tapping screws to fixing members, and the material cost of wiring members or the material cost of fixing members can be reduced There is.

１：接地ネジ、
２：接地用ボルト、
４：歯付座金、
３０：取付桟、
３１：接地装置、
３０Ａ：接地ネジ挿通孔、
１０１：フレーム、
１０１Ａ：フレーム側接地ネジ挿通孔。 1: Ground screw,
2: Grounding bolt,
4: Toothed washer,
30: Mounting bar,
31: Grounding device,
30A: Ground screw insertion hole,
101: frame,
101A: Frame side ground screw insertion hole.

Claims (10)

絶縁物でコーティングされ、太陽電池パネルを固定するフレームを備える太陽電池モジュールと、
導電性材料によって形成され、前記フレームと重なる交差範囲に設けられる接地ネジ挿通孔を有する取付桟、導電性材料によって形成され、前記取付桟を導通可能に支持する架台支柱、及び前記架台支柱に電気的に接続され、接地される接地装置を備える架台と、
前記フレームと前記取付桟とを締結するボルトとは別体に導電性材料によって形成され、前記接地ネジ挿通孔にねじ込まれることにより、前記フレームと前記取付桟とを電気的に接続する接地ネジと、
を備える太陽電池アレイ。 A solar cell module comprising a frame coated with an insulator and fixing the solar cell panel;
A mounting bar that is formed of a conductive material and has a ground screw insertion hole provided in an intersecting range that overlaps with the frame, a pedestal column that is formed of a conductive material and supports the mounting bar so as to be conductive, and an electric power to the pedestal column A gantry comprising a grounding device connected to the ground and grounded;
A ground screw for electrically connecting the frame and the mounting bar, which is formed of a conductive material separately from the bolt for fastening the frame and the mounting bar, and is screwed into the ground screw insertion hole. ,
A solar cell array comprising: 前記接地ネジは、
ドリルねじであり、
前記フレームを穿つことにより前記フレームと前記取付桟とを電気的に接続する
ことを特徴とする請求項１記載の太陽電池アレイ。 The ground screw is
A drill screw,
The solar cell array according to claim 1, wherein the frame and the mounting bar are electrically connected by punching the frame. 前記接地ネジは、
タッピングねじであり、
前記フレームを穿つことにより前記フレームと前記取付桟とを電気的に接続する
ことを特徴とする請求項１記載の太陽電池アレイ。 The ground screw is
Tapping screw,
The solar cell array according to claim 1, wherein the frame and the mounting bar are electrically connected by punching the frame. 前記フレームは、
前記接地ネジを挿通する、前記接地ネジの軸部の外径以下の直径を有するフレーム側接地ネジ挿通孔を有することを特徴とする請求項１記載の太陽電池アレイ。 The frame is
The solar cell array according to claim 1, further comprising a frame-side ground screw insertion hole having a diameter equal to or smaller than an outer diameter of a shaft portion of the ground screw through which the ground screw is inserted. 前記接地ネジは、
導電性材料によって形成されるボルトであり、
前記ボルトに挿通され、前記フレームと前記ボルトに締結されるナットの間に歯付座金をさらに有する
ことを特徴とする請求項１記載の太陽電池アレイ。 The ground screw is
A bolt formed of a conductive material;
The solar cell array according to claim 1, further comprising a toothed washer between a nut inserted into the bolt and fastened to the frame and the bolt. 絶縁物でコーティングされ、太陽電池モジュールの太陽電池パネルを固定するフレームと、導電性材料によって形成され、前記フレームと重なる交差範囲に設けられる接地ネジ挿通孔を有する取付桟、導電性材料によって形成され、前記取付桟を導通可能に支持する架台支柱、及び前記架台支柱に電気的に接続され、接地される接地装置を備える架台と、を前記フレームと前記取付桟とを締結するボルトとは別体に導電性材料によって形成される接地ネジを前記接地ネジ挿通孔にねじ込むことにより、前記フレームと前記取付桟とを電気的に接続することを特徴とする太陽電池アレイの施工方法。   A frame that is coated with an insulator and fixes a solar cell panel of a solar cell module, and a mounting bar that is formed of a conductive material and has a ground screw insertion hole provided in an intersecting range that overlaps the frame, and is formed of a conductive material. A mounting column that supports the mounting frame in a conductive manner, and a mounting frame that is electrically connected to the mounting column and is grounded, and a bolt that fastens the frame and the mounting frame. A method for constructing a solar cell array, wherein the frame and the mounting bar are electrically connected by screwing a ground screw formed of a conductive material into the ground screw insertion hole. 前記接地ネジは、
ドリルねじであり、
前記フレームを穿つことにより前記フレームと前記取付桟とを電気的に接続する
ことを特徴とする請求項６記載の太陽電池アレイの施工方法。 The ground screw is
A drill screw,
The construction method of the solar cell array according to claim 6, wherein the frame and the mounting bar are electrically connected by punching the frame. 前記接地ネジは、
タッピングねじであり、
前記フレームを穿つことにより前記フレームと前記取付桟とを電気的に接続する
ことを特徴とする請求項６記載の太陽電池アレイの施工方法。 The ground screw is
Tapping screw,
The construction method of the solar cell array according to claim 6, wherein the frame and the mounting bar are electrically connected by punching the frame. 前記フレームは、
前記接地ネジを挿通するフレーム側接地ネジ挿通孔を有することを特徴とする請求項６記載の太陽電池アレイの施工方法。 The frame is
The solar cell array construction method according to claim 6, further comprising a frame-side ground screw insertion hole through which the ground screw is inserted. 前記接地ネジは、
導電性材料によって形成されるボルトであり、
前記ボルトに挿通され、前記フレームと前記ボルトに締結されるナットの間に歯付座金をさらに有する
ことを特徴とする請求項６記載の太陽電池アレイの施工方法。 The ground screw is
A bolt formed of a conductive material;
The solar cell array construction method according to claim 6, further comprising a toothed washer between the nut inserted into the bolt and fastened to the frame and the bolt.
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