1. What is the reason why road Lights flash and flash

When you walk on the road at night, sometimes you find that the street lights on the road flash and flash. Usually, human eyes can perceive the light of 70 Hz. If it is lower than 70Hz, the human eye will feel flickering.It will stimulate the eyes, and it will also affect the lighting effect. This is generally LED street lights. The reason why LED street lights flash may be the following:

1. Drive power problem

The driver of LED street lights generally uses a constant current power supply. The basic working mode of the constant current power supply is to continuously adjust the output voltage to ensure that the current is constant when the internal resistance change of LED lamp beads, but this adjustment has a certain limit. There is a certain limit.The Hengli power supply has a range of output voltage. Once the breakthroughs are made, the power supply will enter the protection state. The expression form is that the lamp starts to flash.

2. LED lamp bead problem

LED lamp beads and LED drivers are not matched with flashing phenomena. Normal single-footed 1W lamp beads bear the current of 80-300mA and a voltage of 3.0-3.4V.In the phenomenon, the current is too high, and the lamp beads cannot bear it.

3. The lamp is broken

The phenomenon of frequent lighting in outdoor lamps may be that the lamp is not done well, which causes the water to water. The damage to the damage of the lamp and the driving power supply will cause the flash and need to be repaired in time.

2. LED street light flashing failure solution

The LED street lights have been flickering. The maintenance personnel must first check whether the problem where the problem is driven or LED lamp beads. You can check the faulty parts by replacing the drive power and lamp beads separately.Essence

Sometimes there will still be a flickering failure after the street light is turned off. This must be considered whether it is the problem of the line. It may be a problem with the zero line controlled by the switch. This needs to be dealt with in time to avoid accidents.If you find a problem, it is likely that the LED street light itself generates a self -sensing current. The connection of the coil and the electric lamp with relays can solve the problem with relay.

Third, the street lights are broken to what department to respond to

What should I do if I see the street lights broken?When the street lights are flashing or not bright, ordinary citizens should feedback the situation to the relevant departments, so what part of them should be reflected?This should be determined based on the nature of the street light:

The street light management in my country is divided into two types. One is the social street lights that occupy most of the ratio. This street light is broken. It should be reported to the municipal department or the city's power bureau street light management office where the city's power bureau is located.If it is a street lamp purchased and installed by communities, communities, and villages, it is usually applied for maintenance to the property and village committee.There is also a landscape landscape of the scenic area or Park. If this street light is broken, you can go to the tourist center of the Park or scenic spot to reflect the problem.

1. What is Outdoor light box advertisement

What is the Outdoor light box advertisement?Light box advertisements are also known as "light box posters" or "night promotional painting".For Outdoor light box advertising, its application places are distributed on both sides of the road and the streets, as well as public places such as shadow (drama), exhibition (sales), commercial downtown, stations, airports, docks, parks and other public places.It is called "semi -permanent" street art.The new flexible light box changes the traditional light box during the daytime, and there is no shortage of images and text -shaped, with its realistic images.The rich glyphs show the unique decorative effect with gorgeous colors and strong texture regardless of day and night.The production technology and materials and processes of flexible light boxes can not only make the giant light box covering the entire wall and the building, but also make it into physical models.Flame retardant.It is widely used in banks, supermarkets, fast food restaurants, gas stations, etc., and has become a new form of facade decoration of the store.

two,Outdoor light box advertisementWhat are the characteristics

What are the advantages of Outdoor light box advertising?Due to the huge display screen and fixed display venue, the following characteristics:

1. Wide content

In terms of public transportation, transportation, safety, welfare, savings, insurance, taxation, etc.; in terms of commercial products, enterprises, tourism, services, etc., in terms of culture, education, and art in culture and education, they can be widely extensive in terms of culture, education, and art.Play.

2. Great picture

Many graphic advertising media are conveyed indoors or small -scale, and the area is small.The Outdoor light box advertisement shows the advertisement content in the form of the door, the notice (publicity) column, and the rod light box.It is larger than other flat advertising illustrations and fonts, which is very eye -catching.

3. Together

There are many forms of display, with both text and color functions. From product trademarks, names, physical photos, color, color, corporate intention to culture, economy, customs, beliefs, and concepts.By conceiving and unique ideas, we must grasp the "ring" of inducing consumers to buy the desire to buy, and to achieve the purpose of advertising with the heterogeneity conveyed by visual communication.

4. Strong vision

The function of Outdoor light box advertising is to convey information to Outdoor people and long -distance people through two forms: natural light (day) and auxiliary light (night).The endowment effect of advertising works is strong, which is beneficial to the fast pace, efficiency, and rushing people in modern society.

5. Fixedness

No matter what form of Outdoor light box advertisements, there is a requirement of a certain range and location.As a semi -permanent display device, its basic structure is more complicated than other advertising forms.Including frameworks, compound materials, pattern printing layers, windproof, rainproof and snow -proof structure, and lighting facilities for lighting at night, the cost of copying its single piece is higher than other types of advertisements.

three,Outdoor light box advertisementComposition

1. Framework

The main components of large light boxes are steel and plastic structures. The base and borders are welded with steel or stainless steel structures. The outer cover of the pattern is glass plate, organic glass plate, light box cloth, etc.The main components of small door heads, rods, and suspension light boxes are steel or injection frames. Most of the outer masks of the pattern use glass, organic glass or transparent plastic board.

2. Carrier

The printing carrier of the light box can use synthetic paper, inkjet film, self -viscous glue film, light box canvas and other materials according to its structure and production process.

3.

The auxiliary light (commonly known as light) of the light box is based on the structure of the pattern picture, and the printing materials, the thickness of the ink layer, and the pattern surface are used for lighting design.In the past, ordinary fluorescent lamps were mostly used. With the application of new lamps, the auxiliary light of the light box also developed from a single light to multiple types of light.The resulting picture quality and uniformity and softness have been greatly improved.

1. Steps of the installation process of city circuit lamps

The city circuit lamp consists of the lamp head (light source), light pole, embedded parts, mixed soil foundation, lightning -absorbing corner iron, PVC Tube, wire, cable, control box (time and space switch, exchange contactor, leakage protection device) and other parts.The installation process steps are: basic positioning basic pouring construction cable protection groove slot slot threading pipe support threading cable protection groove backfill lamp wiring street light control installation:

1. Basic positioning

The survey address is determined to determine the position of the light pole. At the same time, there is no cable, pipeline and other facilities below the excavation location. Based on the above, the high -voltage wire must be avoided, and the leaves are used to avoid the safety of the leaves to ensure the safety of construction.

2. Basic pouring construction

Dig a basic pit with the corresponding size according to the drawings, then enter the lightning -absorbing angle iron, use the concrete to enter the cushion, and then fix the embedded parts; finally put two in less than less than 30mm arc -shaped threading Tube, the threading Tube of the threading Tube, and the threading Tube.One end is placed in the center of the four screws of the embedded parts, one of which comes in in the direction of the main cable, and the other one ends in the direction of the main cable.

3. Cable protection groove slot

In the case of cement pavement or street road surface, a cable protective groove should be dug into the cement slot. The depth of the slot should be determined according to the actual situation.

4. Circuit Tube supplement

The thread is generally used for cables. One end is fixed on the guidance steel wire. The piercing rod is introduced. On the basis of embedding, there is -shaped semi -circular, which is used for wiring.The length of each round line is determined.

5. Cable protection groove recovery

The hidden project can be filled in the cable protection groove after confirming the qualification, and the layered landfilling when the backfill is returned.

6. lighting assembly

Divide the light rod to each foundation, and assemble the light rod arm on the side of the road parallel. Do not scrape the wire in the light rod during the thread to protect the cortex;Adjust the parallel degree of the light surface and the parallel surface of the light head and the elevation of the light head, and try the temporary power supply.

7. Establishing rod wiring

The vertical rod is divided into two types: artificial vertical rod and mechanical vertical rod. Pay attention not to press the French disk to the wire and cable to prevent the leakage of the Skin.Do not touch the surrounding high -voltage lines or other buildings when standing.Add the cushion under the buried nut and use nuts to fasten.Effect the light rod, the light pole must be perpendicular to the road surface.Then faste the pads of the lightning -absorbing angle iron, and the conditions are allowed to be welded to ensure that the light rod is connected to the pile with the lightning corner.Do a good job of connection between the main cable and the wire in the light rod, and do a good job of waterproof treatment. The phase wire of each lamp should be installed with a fuse. The fuse should be fixed., The upper end of the fuse should be connected to the wire, the lower end is connected to the power supply, and the lamp rod is connected to the ground wire at the same time.

8. Street light control installation

Street light control box components include leakage protection, timing microcomputer switches, AC contactors, separation switches, and electric meters. Check whether the connection is correct and whether the wiring is firm., Finally connect to the distribution box to connect the ground wire.

After the above steps, the rust -proof processing of the street light rod can be embedded in the street light rod. If the conditions are conditional, add an additional nut fastener. After the liquid asphalt is brushed, the city circuit light is installed.

2. What are the requirements for Outdoor street lights?

1. The protection of Outdoor street lights is divided into TT and TN systems, of which the TN system is divided into TN-C, TN-S, TN-C-S system.

2. The TT method refers to the protection system that directly grounds the metal shell of the street lamp steel rod, commonly known as single Lights.When the metal shell of the street -lamp steel rod is charged, the danger of electric shock is reduced by a low -voltage section. It is suitable for places where ground protection is very scattered. At present, it is rarely used.

3. The TN method of power supply system is the protection system that connects the metal shell of the street light steel rod with the working zero line. It is also known as the zero protection system of the street light connection. Once the device appears, the zero protection system can raise the leakage current to a short -circuit current to a short -circuit current.This current is very large, which is 5.3 times the TT system. In fact, it is a relatively short -circuit failure. The fuse of the fuse will melt.Safety.

4. The welding of the ground wire should comply with relevant regulations: flat steel is twice the width of its width, and at least 3 edges are welded. The round steel is 6 times the diameter. When the round steel is connected to the flat steel, the length of the round steel is round steel.6 times diameter.

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1. What is a single -arm street light

There is only one light pole of the general lighting street light. On the top of the light rod, a branch arm is equipped with a lamp head to provide public lighting. We call this street lamp as a single -arm street lamp, also known as single -arm light.Single -arm Lights are divided into ordinary sodium lamps, single -arm street lights, energy -saving lamp single -arm street lights, pyrine single -arm street lights and LED single -arm street lights.

Single -arm Lights are the most common type in road Lights. There is only one arm. The pole body uses Q235 low -carbon high -quality steel bending welding at one time. The weld is Smooth and Smooth.The appearance is beautiful, simple and Smooth, and is usually installed on both sides of the river, slope, or wider road surface to play a role in lighting road conditions and guiding safe driving.

2. What is the lamp of both arm street lights

Both arm lamps are derivative lamps of single -arm street lights, that is, two branches on the top of the light pole, two lamp heads are installed, and the roads on both sides are illuminated.

The two branches of the arms have a certain symmetry, which is more abundant than the shape of a single -arm light. Generally, it is installed on a multi -away green Belt or a road section with special lighting requirements.energy.

What is the difference between one -arm street lamp and binocular street lights

1. Different shapes

The main difference between single -arm street lights and arms street lights is the shape. Single -arm street lights are one arm, and the top of the light rod of the arms street lights has two branches, and it is symmetrical.The street lights are more beautiful.

2. Different installation environment

Single -arm street lights are suitable for wider roads such as residential areas, rural roads, factories, parks, etc., and both arm street lights are mostly used on the two -way roads on the road and some special lighting road sections that need to take into account both sides of road lighting at the same time.Essence

3. Different costs

Single -arm street lights only need to install one branches and one lamp head. The installation cost is definitely lower than the arms street lights. However, in terms of use, the arms street lights can take into account the roads on both sides with only one light pole.Installed on both sides, generally, the arms are more energy -saving and environmentally friendly.

Disclaimer: The above method stems from the index of the program system or the sharing of netizens. It is for your reference only and does not represent the research perspective of this website. It proves that it is effective. Please pay attention to the authenticity and authority of the source of the content of the content.Apply to delete & gt; & gt;Correction & gt; & gt;

1. What are the guard lighting Lights

The lighting source should adopt various high -efficiency energy -saving fluorescent Lights and incandescent lamps.It should also meet the requirements of lighting places, color rendering, and anti -glare.

2. How to set guard lighting

1. The air defense basement should have normal lighting and emergency lighting at the normal and wartime lighting. Usually lighting should also have duty lighting, and transitional lighting should be set at the entrance.

2. The light -defense basement of the Pingli war should be determined according to the following requirements:

1. The illumination of normal lighting should be determined by referring to the illustration standard of similar ground building.It is necessary to adhere to work with high visual requirements for a long time, which can appropriately improve the degree of illumination standards.

2. Lantern and its layout should be coordinated with the function and building decoration;

3. lighting or emergency lighting that can be controlled alone in normal lighting should be used in normal lighting.

3. The transition illumination of the air defense basement should adopt a natural light transition. When the natural transition cannot meet the requirements, artificial lighting transitions should be used.The transitional lighting should meet the needs of people in and out of the basement in sunny, cloudy days, and night personnel.The current of each lighting single -phase branch should not exceed 16A.

4. Two AC220V10A single -phase three -hole splash -proof sockets should be provided with a cleaning room and inspection room.

5. At 1.5m from the ground near the sampling point of each filter absorber in the filtration room, 1 AC220V10A single -phase three -hole socket should be set.

6. Medical ambulance engineering, professional team members covering part, and first -class personnel covering the anti -communication duty room shall be set up in the AC380V16A three -phase and four -hole sockets, one circuit breaker, and 7 AC220V10A single -phase three -hole sockets.

7. Anti -ization communication room of the second -class personnel should be set in the AC380V16A three -phase and four -hole socket, one circuit breaker, and 5 AC220V10A single -phase three -hole sockets.

8. The anti -chemical equipment storage room should be set with 1 AC220V10A single -phase three -hole socket.

9. The selection of lamps should be selected with a lighter line Hanging or chain chandeliers and bayonet lamp heads.When the indoor net height is low or the usual needs are used to choose the ceiling light, the defense drop protection network should be added during the war.

10. The lighting of the passage, entrances, and public rooms and room lighting should be powered by different circuits.

11. The lighting power circuit from the protective area to the non -protective area. When a power circuit is shared in the protective area and the non -protective area lamps, a short -circuit protection device should be set on the inside of the protective closed door and the inside of the linked Battle.The lamps in non -protective areas are set up separately.

12. At the time of war, the main entrance and exit of the closed door to the channel lighting power supply from the ground to the ground should be supplied by the human electrical anti -power source cabinet within the protective unit. It is not advisable to use the power system power supply.