Three-in-one grounding grid for lightning protection equipment maintenance

Abstract

The three-purpose grounding grid for lightning protection equipment maintenance discloses a lightning protection line grounding grid that serves as a grounding grid for equipment and maintenance. A lightning protection line pole 2 connected to the lightning protection line and a grounding grid line pole 4 connected to the grounding grid 8 are arranged horizontally at the lower part of the terminal board 1. A maintenance grounding pole 5 connected to the maintenance grounding line is arranged vertically directly above the grounding grid line pole 4, and the spacing between the grounding grid line pole 4 and the lightning protection line pole 2 is equal to the spacing between the grounding grid line pole 4 and the lightning protection line pole 2. A switching piece 3 is hinged on the grounding grid line pole 4, which is connected to the lightning protection line pole 2 or the maintenance grounding pole 5. The equipment grounding line 7 is connected to the grounding grid line pole 4. The warning light 6 uses the switching piece 3 as a driving part to connect the travel switch 9, and lights up when the lightning protection grounding line is disconnected and the maintenance grounding line is connected. It is used for grounding lightning protection, equipment, and maintenance grounding lines.

Description

Technical Field

[0001] The three-purpose grounding network for lightning protection equipment maintenance involves power transmission and distribution technology, and specifically involves a lightning protection line grounding network that serves as a grounding network for equipment and maintenance. Background Art

[0002] The workshops and buildings of power production are all equipped with lightning arresters, which are reliably grounded. The power equipment in the workshops and buildings needs to be grounded during maintenance, and the lightning arrester grounding network can be used. The equipment grounding can be connected in parallel with the grounding wire of the lightning arrester. The current method is to remove the lead-in wire of the lightning arrester and connect the maintenance grounding wire to the access end of the lightning arrester grounding network. It is troublesome to install and remove the grounding wire on the spot. Summary of the invention

[0003] The technical problems to be solved in the three-purpose grounding network for lightning protection equipment maintenance are: the universality of the lightning protection line grounding network and the three uses of one network.

[0004] The technical solution adopted is: adding a conversion switch and an operating condition conversion warning light between the lightning protection wire lead and the grounding grid.

[0005] The three-purpose grounding grid for lightning protection equipment maintenance (attached picture) consists of a wiring board 1, a lightning protection pole 2, a switching piece 3, a grounding grid pole 4, a maintenance grounding pole 5, a warning light 6, an equipment ground wire 7, a grounding grid 8, a travel switch 9 and a grounding cabinet 10. The wiring board 1 is fixed in the grounding cabinet 10. The lightning protection pole 2 connected to the lightning protection pole and the grounding grid pole 4 connected to the grounding grid 8 are arranged horizontally at the bottom of the wiring board 1. The maintenance grounding pole 5 connected to the maintenance grounding pole is arranged vertically directly above the grounding grid pole 4, and the spacing between the grounding grid pole 4 and the lightning protection pole 2 is equal to the spacing between the grounding grid pole 4 and the lightning protection pole 2. The switching piece 3 is hinged on the grounding grid pole 4, which can be connected to the lightning protection pole 2 or to the maintenance grounding pole 5. The equipment ground wire 7 is connected to the grounding grid pole 4.

[0006] The warning light 6 is connected in series with a travel switch 9 installed on the terminal board 1. 220V mains electricity is used. The travel switch 9 is connected to the live wire; the middle wire diameter is connected to the warning light 6. When the switching piece 3 is disconnected from the lightning arrester pole 2 and switched to the maintenance grounding pole 5, the travel switch 9 is touched at the same time to close it. The warning light 6 is powered and illuminated, warning that the maintenance grounding wire has been connected to the grounding grid 8, and the maintenance grounding wire can be safely connected to carry out equipment maintenance.

[0007] The beneficial effects of the three-purpose grounding network for lightning protection equipment maintenance are: one network for three purposes; line switching is fast and safe; the warning light warns that the lightning protection line has been disconnected and is in maintenance operation condition. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Attached Figure 1 It is a wiring diagram of the three-purpose grounding grid structure for lightning protection equipment maintenance.

[0009] In the figure: 1- terminal block; 2- lightning arrester pole; 3- changer; 4- grounding network pole; 5- maintenance grounding pole; 6- warning light; 7- equipment ground wire; 8- grounding network; 9- travel switch; 10- grounding cabinet; 11- hand wrench sleeve. DETAILED DESCRIPTION

[0010] The ground plate 1 is made of 3020 type insulating plate.

[0011] The lightning protection pole 2, the grounding network pole 4, and the maintenance grounding pole 5 all adopt grounding poles with insulating seats.

[0012] The switching piece 3 is made of galvanized steel plate and is T-shaped. The bottom end of the T-plate has a hole, which is hinged to the grounding wire column 4; an insulating hand lever sleeve 11 is inserted in the middle. The horizontal part of the T-plate is a back-to-back left and right U-shaped piece. The switching piece 3 is rotated upward, and the left U-shaped piece is plugged into the maintenance grounding column 5 to connect the maintenance grounding line; the switching piece 3 is rotated downward, and the right U-shaped piece is plugged into the lightning protection line column 2 to connect the lightning protection grounding line.

[0013] The warning light 6 uses 220V mains electricity and a 15W red bulb. The travel switch 9 uses the LX22-1 type.

Claims

1. A three-purpose grounding network for lightning protection equipment maintenance, comprising a lightning protection pole (2), a grounding network pole (4), a maintenance grounding pole (5), a travel switch (9), and a grounding cabinet (10), wherein: The invention also comprises a wiring board (1), a switching plate (3), a warning light (6), an equipment ground wire (7), and a grounding network (8); the wiring board (1) is fixed in a grounding cabinet (10); a lightning rod (2) connected to a lightning rod and a grounding network wire rod (4) connected to a grounding network (8) are arranged horizontally at the bottom of the wiring board (1); a maintenance grounding rod (5) connected to a maintenance grounding wire is arranged vertically just above the grounding network wire rod (4), and the distance between the maintenance grounding rod (5) and the grounding network wire rod (4) is equal to the distance between the grounding network wire rod (4) and the lightning rod (2); the switching plate (3) is hinged on the grounding network wire rod (4); the equipment ground wire (7) is connected to the grounding network wire rod (4); the warning light (6) is connected in series with a travel switch (9) installed on the wiring board (1); 220V AC power is used, the travel switch (9) is connected to the live wire, and the middle wire diameter is connected to the warning light (6).

2. The three-purpose grounding grid for lightning protection equipment maintenance according to claim 1 is characterized in that: The switching piece (3) is made of galvanized steel plate and is T-shaped; a hole is provided at the bottom end of a vertical portion of the T-plate, and an insulating hand lever sleeve (11) is inserted in the middle; and a horizontal portion of the T-plate is a back-to-back left and right U-shaped piece.

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