CN204407846U - A kind of line lightning arrestor - Google Patents

Abstract

The utility model relates to the technical field of lightning protection devices, and specifically discloses a line lightning protection device, which includes a lightning rod, a lead wire and a wire clamp. The upper part of the lightning rod is a needle body, and the bottom of the lightning rod is a first clamp. The first clamp is fixedly connected, the lightning rod is fixed on one end of the line cross-arm through the first clamp, and the needle point of the lightning rod is upward; Hollow tube with holes and bolts, the clamp is fixed on the other end of the line cross arm through the second clamp; one end of the lead wire is inserted into the hollow tube of the lead wire holder, fixed by the bolt, and the other end is grounded. Both the first clamp and the second clamp are "U"-shaped clamps with two parallel splints. The utility model has the function of preventing rural transmission and distribution network lines from being struck by lightning, and has the advantages of simple structure, safety, reliability and durability, and low cost. Advantages, it is suitable for various high and low voltage lines, and has a wide range of applications.

Description

A line lightning protection device

technical field

The utility model relates to the technical field of lightning protection devices.

Background technique

The large-area rural transmission and distribution network in my country adopts the method of cross-arm configuration on utility poles to carry power lines. Due to the vast rural area of our country, the proportion of utility poles in open areas is large, and utility poles often become isolated high bodies in large areas. In the thunderstorm season, it is easy to be struck by lightning, which will damage the power facilities and equipment and threaten the normal power supply of the line.

Utility model content

The technical problem to be solved by the utility model is to provide a line lightning protection device, which has the function of lightning protection for rural transmission and distribution network lines, and also has the advantages of simple structure, safety, reliability, durability, and low cost, and is suitable for various high and low voltage line, with a wide range of applications.

In order to solve the above-mentioned technical problems, the technical solution adopted by the utility model is: a line lightning protection device, including a lightning rod, a lead wire and a wire clip, the upper part of the lightning rod is a needle body, and the bottom of the lightning rod is a first clamp. The needle body is fixedly connected with the first clamp, the lightning rod is fixed on one end of the line cross-arm through the first clamp, and the needle point of the lightning rod is upward; the wire clamp includes a second clamp and a lead wire holder fixedly connected It is a hollow tube provided with screw holes and bolts, and the clamp is fixed on the other end of the cross-arm of the line through a second clamp; one end of the lead wire is inserted into the hollow tube of the lead wire holder, and is fixed by a bolt, and the other end grounded.

Further, the first clamp is a "U"-shaped clamp with two parallel clamps, one clamp of the "U"-shaped clamp is provided with matching threaded through holes and bolts, and the "U"-shaped clamp The other splint is fixedly connected with the needle body.

Further, the second clamp is a "U"-shaped clamp with two parallel clamps, one clamp of the "U"-shaped clamp is provided with matching threaded through holes and bolts, and the middle of the lead wire holder The empty tube is secured to the outer surface of the "U" shaped clamp.

Further, the lead wire is a steel strand, and the steel strand wraps around the utility pole body between the clamp and the ground.

The beneficial effects produced by adopting the above technical scheme are: the utility model is made of commonly used parts and components in the field of electric power grid construction and maintenance, and the implementation and maintenance are convenient and quick; it has the function of preventing the lines of the rural transmission and distribution network from being struck by lightning, and effectively prevents damage to line equipment caused by lightning strikes. damage, to ensure the normal power supply of the line in thunderstorms; it also has the advantages of simple structure, safety, reliability, durability, and low cost. It is suitable for various high and low voltage lines and has a wide range of applications.

Description of drawings

Fig. 1 is the installation rendering of the present utility model;

Fig. 2 is a structural representation of the utility model lightning rod;

Fig. 3 is a structural schematic diagram of the utility model wire clip.

1. Needle body; 2. First fixture; 3. Hollow tube; 4. Second fixture; 5. Lead wire; 6. Cross arm;

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

Detailed ways

In order to solve the problem that rural transmission and distribution network lines are easily struck by lightning in open areas, the utility model discloses a line lightning protection device, which can prevent distribution network lines from being struck by lightning by using a combination of lightning rods, lead wires and wire clips For the damage of line equipment, in order to describe the utility model more clearly, the following specific implementation methods are provided:

Example 1

A line lightning protection device (see Figure 1), comprising a lightning rod, a lead wire 5 and a wire clamp, the upper part of the lightning rod is a tubular needle body 1 made of cast iron, the lower part of the lightning rod is a first clamp 2 made of cast iron, and the first clamp 2 is set A "U"-shaped clamp with two parallel splints, one of which is provided with matching threaded through holes and bolts, and the other splint is welded to the lower end of the needle body 1; the clamp includes a second clamp 4 made of cast iron and lead wires 5 fixer, lead wire 5 The fixer is a hollow tube 3 provided with threaded through holes and bolts, the second clamp 4 is a "U"-shaped clamp with two parallel clamps, one clamp of the "U"-shaped clamp is set There are matching threaded through holes and bolts, and the hollow tube 3 of the lead wire 5 holder is longitudinally welded at the two splint joints of the "U"-shaped clamp of the second clamp 4 . Among them, the thickness of the splint of the "U"-shaped clip is 5mm, the length of the splint is 50mm, and the distance between the splints is 7mm; the length of the needle body 1 of the lightning rod is 1.8m, and the radius of the needle body 1 is 1.5mm; the lead wire 5 is a steel strand.

During installation, the lightning rod is fixed on one end of the line cross-arm 6 through the "U" clip of the first fixture 2, and the needle point of the lightning rod is upward; the wire clip is fixed on the other end of the line cross-arm 6 through the "U" clip of the second fixture 4 , one end of the lead wire 5 penetrates the hollow tube 3 of the lead wire 5 holder, and is fixed with bolts, the lead wire 5 wraps around the pole body, and the end of the lead wire 5 is wrapped around an angle iron with a hole, and the angle iron is deeply buried in the ground to achieve a good grounded. When encountering a lightning strike, the lightning rod can ground the lightning through the lead wire 5. Applicable to cross-arm specifications of 50×5×600, 50×5×1500.

For cross-arms of different specifications, the plywood thickness, length and plywood spacing of the "U" clamp have different specifications. For example, the cross-arm specification is 60×6×1900, the thickness of the plywood corresponding to the U” clamp is 5mm, the length is 60mm, and the distance between the plywood is 9mm.

The device is simple to manufacture and process, low in manufacturing cost, strong in adaptability, safe and reliable, and has the function of preventing the rural transmission and distribution network lines from being struck by lightning, effectively preventing damage to line equipment caused by lightning strikes, and ensuring the normal power supply of lines in thunderstorm days. It is worth popularizing.

Claims (4)

1. A line lightning protection device, characterized in that it includes a lightning rod, a lead wire (5) and a wire clip, the upper part of the lightning rod is a needle body (1), the bottom of the lightning rod is a first clamp (2), and the The needle body (1) is fixedly connected with the first clamp (2), and the lightning rod is fixed on one end of the line cross-arm (6) through the first clamp (2), and the needle point of the lightning rod is upward; the wire clamp includes a second fixedly connected Clamp (4) and lead wire (5) fixer, the lead wire (5) fixer is a hollow tube (3) provided with screw holes and bolts, and the wire clamp is fixed on the line horizontal line by the second clamp (4) The other end of the bearing (6); one end of the lead wire (5) passes through the hollow tube (3) of the lead wire (5) holder, is fixed by bolts, and the other end is grounded. 2. A line lightning protection device according to claim 1, characterized in that the first clamp (2) is a "U"-shaped clamp with two parallel clamps, and one clamp of the "U"-shaped clamp Matching threaded through holes and bolts are provided, and the other splint of the "U"-shaped clamp is fixedly connected with the needle body (1). 3. A line lightning protection device according to claim 1, characterized in that the second clamp (4) is a "U"-shaped clamp with two parallel clamps, and one clamp of the "U"-shaped clamp Matching threaded through holes and bolts are provided, and the hollow tube (3) of the lead wire (5) fixer is fixed on the outer surface of the "U"-shaped clamp. 4. A line lightning protection device according to claim 1, characterized in that the lead wire (5) is a steel strand, and the steel strand wraps around the pole body between the clamp and the ground.