CN210430921U - Lightning protection system of roof power equipment - Google Patents
Lightning protection system of roof power equipment Download PDFInfo
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- CN210430921U CN210430921U CN201921659652.0U CN201921659652U CN210430921U CN 210430921 U CN210430921 U CN 210430921U CN 201921659652 U CN201921659652 U CN 201921659652U CN 210430921 U CN210430921 U CN 210430921U
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- lightning protection
- phase line
- roof
- power equipment
- distribution box
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Abstract
The utility model discloses a lightning protection system of roof power equipment, which comprises power equipment arranged in a lightning protection area of a roof and a distribution box arranged in a room, wherein the roof is provided with a lightning protection belt; a surge protector is arranged in the distribution box and is respectively connected with a first phase line, a second phase line, a third phase line, a zero line and a ground wire of the distribution box; the power equipment is respectively connected with a first phase line, a second phase line and a third phase line of the distribution box; the shell of the power equipment is connected with the lightning protection belt through a conductive piece. This embodiment lightning protection system effectively prevent surge protector's electric current invasion, make surge protector play the lightning protection effect, effectively solved among the prior art the technical problem that roof power equipment's lightning protection system's surge protector can't play the lightning protection effect.
Description
Technical Field
The application relates to the lightning protection field, especially relates to a lightning protection system of roof power equipment.
Background
The distribution box, surge protection device and power equipment's electrical connection structure is shown in fig. 1, if there is electromagnetic pulse to get into inside the building through the roof wire, phase line Ll, L2, L3 and ground wire PE line all have the electric current inflow and the electric current equals, if the cross-section of phase line and the cross-section of ground wire equal, impedance equals promptly, the voltage difference of phase line and ground wire is basically zero theoretically, the surge protector SPD in fig. 1 can't switch on this moment, can't lead dangerous potential ground, electromagnetic pulse just "smooth" has passed through the distribution box, get into inside the building, that is to say, the surge protector SPD here does not play some effect at all, the shape is the same as the virtual.
Therefore, the lightning protection system of the roof power equipment at least has the following technical problems: the surge protector in the distribution box can not play the role of lightning protection.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a lightning protection system of roof power equipment, the lightning protection system comprises the power equipment arranged in a lightning protection area of a roof and a distribution box arranged in a room, and a lightning protection belt is arranged on the roof; a surge protector is arranged in the distribution box and is respectively connected with a first phase line, a second phase line, a third phase line, a zero line and a ground wire of the distribution box; the power equipment is respectively connected with a first phase line, a second phase line and a third phase line of the distribution box;
the shell of the power equipment is connected with the lightning protection belt through a conductive piece.
Furthermore, the conductive piece is hot galvanized flat steel.
Furthermore, at least two positions of the shell of the power equipment are respectively connected with the lightning protection belt of the roof.
Furthermore, a fuse is further arranged in the distribution box.
Further, the fuse is connected in series with the surge protector.
Furthermore, the fuse is respectively connected with a first phase line, a second phase line, a third phase line and a zero line of the distribution box.
The ground line PE of the power plant 22 described in the embodiment of the present application is not routed from the distribution box 21, when the electromagnetic pulse flows to the surge protector SPD from the first phase line L1, the second phase line L2 and the third phase line L3, because the ground wire PE does not pass through the lightning protection area of the roof, no electromagnetic pulse is introduced, the potential of the ground wire PE is basically the ground potential, the first phase line L1, the second phase line L2, the third phase line L3 and the ground wire PE form a certain potential difference, the surge protector SPD can be smoothly conducted, the current of the surge protector SPD is smoothly led into the ground through the ground wire PE, therefore, the lightning protection system of the embodiment effectively prevents the current invasion of the surge protector SPD, the surge protector SPD plays a lightning protection role, and the technical problem that the surge protector SPD of the lightning protection system of the roof power equipment in the prior art cannot play a lightning protection role is effectively solved.
The foregoing description is only an overview of the technical solutions of the present application, and the present application can be implemented according to the content of the description in order to make the technical means of the present application more clearly understood, and the following detailed description of the present application is given in order to make the above and other objects, features, and advantages of the present application more clearly understandable.
Drawings
FIG. 1 is a schematic structural diagram of a lightning protection system for a roof power plant of the prior art;
fig. 2 is a schematic structural diagram of a lightning protection system of a roof power device according to an embodiment of the present invention.
Detailed Description
The embodiment of this application is through providing a roof power equipment's lightning protection system for solve among the prior art the technical problem that roof power equipment's lightning protection system's surge protector can't play the lightning protection effect.
In order to solve the technical problems, the technical scheme provided by the application has the following general idea: the shell of the power equipment is connected with the lightning protection belt, the ground wire does not pass through a lightning protection area of a roof, so that the potential of the ground wire is basically ground potential, the first phase line, the second phase line, the third phase line and the ground wire form a certain potential difference, the surge protector can be smoothly conducted, the current of the surge protector is smoothly guided into the ground through the ground wire, and the surge protector can play a role in lightning protection.
The technical solutions of the present application are described in detail below with reference to the drawings and specific embodiments, and it should be understood that the specific features in the embodiments and examples of the present application are detailed descriptions of the technical solutions of the present application, and are not limitations of the technical solutions of the present application, and the technical features in the embodiments and examples of the present application may be combined with each other without conflict.
Fig. 2 is a schematic structural diagram of a lightning protection system of a roof power device in this embodiment, as shown in fig. 2, the lightning protection system includes a power device 22 disposed in a lightning protection area of a roof and a distribution box 21 disposed in a room, and a lightning protection belt 24 is disposed on the roof; a surge protector SPD is arranged in the distribution box 21 and is respectively connected with a first phase line L1, a second phase line L2, a third phase line L3, a zero line N and a ground wire PE of the distribution box 21; the power equipment 22 is respectively connected with a first phase line L1, a second phase line L2 and a third phase line L3 of the distribution box 21;
the shell of the power equipment 22 is connected with the lightning protection belt 24 through a conductive piece 23.
Specifically, the housing of the power plant 22 is electrically conductive, for example, the housing of the power plant 22 is a metal housing.
Further, the conductive member 23 is a hot-dip galvanized flat steel.
Furthermore, at least two positions of the housing of the power device 22 are respectively connected with the lightning protection belt 24 of the roof.
Further, a fuse FU is further arranged in the distribution box 21.
Further, the fuse FU is connected in series with the surge protector SPD.
Further, the fuse FU is connected with a first phase line L1, a second phase line L2, a third phase line L3 and a neutral line N of the distribution box 21 respectively.
The action principle of the lightning protection system of the roof power equipment is as follows:
in this embodiment, the ground line PE of the power plant 22 is not routed from the distribution box 21, when the electromagnetic pulse flows to the surge protector SPD from the first phase line L1, the second phase line L2 and the third phase line L3, because the ground wire PE does not pass through the lightning protection area of the roof, no electromagnetic pulse is introduced, the potential of the ground wire PE is basically the ground potential, the first phase line L1, the second phase line L2, the third phase line L3 and the ground wire PE form a certain potential difference, the surge protector SPD can be smoothly conducted, the current of the surge protector SPD is smoothly led into the ground through the ground wire PE, therefore, the lightning protection system of the embodiment effectively prevents the current invasion of the surge protector SPD, the surge protector SPD plays a lightning protection role, and the technical problem that the surge protector SPD of the lightning protection system of the roof power equipment in the prior art cannot play a lightning protection role is effectively solved.
It should be noted that, in the present embodiment, the power equipment 22 is connected to the lightning strip 24, which is different from the prior art in which the equipment that is not protected by the lightning strip is connected to the lightning strip, the present embodiment connects the power equipment 22 to the lightning strip 24 to protect the power equipment from lightning, and the prior art in which the equipment that is not protected by the lightning strip is connected to the lightning strip is used to prevent the human body from indirect click accidents.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (6)
1. A lightning protection system for a roof power plant, characterized in that: the lightning protection system comprises power equipment (22) arranged in a lightning protection area of a roof and a distribution box (21) arranged in a room, and a lightning protection belt (24) is arranged on the roof; a Surge Protector (SPD) is arranged in the distribution box (21), and the Surge Protector (SPD) is respectively connected with a first phase line (L1), a second phase line (L2), a third phase line (L3), a zero line (N) and a ground wire (PE) of the distribution box (21); the power equipment (22) is respectively connected with a first phase line (L1), a second phase line (L2) and a third phase line (L3) of the distribution box (21);
the shell of the power equipment (22) is connected with the lightning protection belt (24) through a conductive piece (23).
2. A lightning protection system for a roof power unit according to claim 1, wherein: the conductive piece (23) is hot galvanized flat steel.
3. A lightning protection system for a roof power unit according to claim 1, wherein: at least two positions on the shell of the power equipment (22) are respectively connected with the lightning protection belt (24) of the roof.
4. A lightning protection system for a roof power unit according to claim 1, wherein: and a fuse protector (FU) is also arranged in the distribution box (21).
5. A lightning protection system for a roof power unit according to claim 4, wherein: the Fuse (FU) is connected with the Surge Protector (SPD) in series.
6. A lightning protection system for a roof power unit according to claim 5, wherein: the Fuse (FU) is respectively connected with a first phase line (L1), a second phase line (L2), a third phase line (L3) and a zero line (N) of the distribution box (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921659652.0U CN210430921U (en) | 2019-10-01 | 2019-10-01 | Lightning protection system of roof power equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921659652.0U CN210430921U (en) | 2019-10-01 | 2019-10-01 | Lightning protection system of roof power equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210430921U true CN210430921U (en) | 2020-04-28 |
Family
ID=70368170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921659652.0U Active CN210430921U (en) | 2019-10-01 | 2019-10-01 | Lightning protection system of roof power equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210430921U (en) |
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2019
- 2019-10-01 CN CN201921659652.0U patent/CN210430921U/en active Active
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