Solar Street Light Light Up Rural Areas in China
In recent years, more and more solar street light rural are used and concerned, among which 太阳能路灯 are also used in many villages, rural areas. After the Cov-19 epidemic, the Chinese government has formulated 30 trillion infrastructure plans to stimulate the economy. The new rural reconstruction project is also one of them. The government encourages enterprises to provide advanced lighting products in the countryside. Through these projects, more and more remote mountain villages are equipped with solar street lamps, which makes the local villagers’ nightlife more convenient and safe.
Rural install solar street light general installation distance interval, first depends on the width of the road and the demand for lighting: spacing between rural street light pole, not corresponding national standards requirements, rural street lamp is commonly adopted unilateral lighting, according to the regulation of city road lighting for spacing (CJJ45-2015) national standards, as long as reach: spacing installation height of ≤3 times. For example, the installation height of the lamp pole is 8 meters, so the spacing within 24 meters is in line with the requirements.
It is necessary to consider the lighting requirements and the characteristics of the place when distributing solar street lamps. For example, 20W and 30W solar street lamps can be selected for general rural roads, and the installation distance is 25-30 meters. If the wattage is too large, it is a bit of a waste of resources, and too little wattage can not play an application role.
In rural areas, the distance between the street lamps is 30 to 50 meters. Generally, there are three kinds of install lamps: one side install lamp, two side cross install lamps, and two side symmetrical install lamps. For special cases such as T-junction light, intersection light, and bend light, the light can be distributed according to the actual situation. If both motor vehicle lane and non-motor vehicle lane need lighting, one side or two sides two-way lighting can be used.
(1) when the road width is less than 10 meters, it is enough for solar street light rural to use unilateral lighting.
(2) when the width of road lighting is 10-15 meters, LUXMAN LIGHT recommends the installation of solar street lamps by means of cross-install lamps on both sides.
(3) when the width of road lighting is more than 15 meters, it is advisable to install solar street lamps in the way of relative lighting on both sides. For example, the optimal distance of the 60W split solar street lamp is 30-50 meters, and the 30W integrated solar LED street lamp is 30 meters.
(4) for the T-shaped intersection, a T-shaped lamp can be arranged near the triangle, and at least two lamps can be arranged near the intersection for lighting.
(5) the road junction is generally equipped with a surveillance camera, which needs to be filmed clearly and can be arranged according to the shooting requirements.
6) solar lamps are generally arranged on the outside of the bend to avoid accidental traffic hitting the lamp-post.
The Coronavirus Will Pass, and The Light Will Come
When new coronavirus pneumonia broke out in the world, when many cities were closed down, when partners were in trouble, Luxman light offered little effort to prevent and control the epidemic. For the Luxman’s partners of the world, we sent some free medical materials to them.
Since ancient times, human beings have been fighting against viruses. The technological and scientific progress we have made enables us to curb the spread of the coronavirus and reduce the loss of human life. Today’s health system is much stronger than ever before. Scientists tell us that viruses are random, they have no nationality. Viruses are our collective challenge. We are either United or defeated by fear. At present, China has controlled the epidemic, people’s lives and work have been basically normalized, and children have returned to school classes.
People all over the world are doing the same job as us, and their families are hanging on the same heart like us. Just want to tell you through these experiences, don’t worry and don’t be afraid, the epidemic will eventually pass, because there are many heroes who are doing their best to win this epidemic Resistance War, for the sake of lovers, relatives, friends, our compatriots, and our tomorrow.
A river is formed by collecting water, and a mountain is formed by accumulating soil. If people work together, the haze will disappear and the light will come.
Luxman Light Team
May 21, 2020
相关文章
Solar Street Light Controller Maintenance
"(《世界人权宣言》) 太阳能路灯 controller is applied in the solar photovoltaic lighting system. It is called solar charge and discharge controller, which coordinates the work of the solar panel, battery, and load. Solar controller is the core component of solar street lights, which has the function of light control, time control, charging and discharging, etc. Keep it dry in use, and do not touch the button at discretion. Malfunction must be in professional operation.
It can be seen how important the solar street lamp controller is. What should I do if such an important part breaks down? Luxman light will share with you some of our own conclusions on this issue.
1.Protection, troubleshooting, and maintenance of solar street lamp controller
| Protection function of solar street lamp controller | |
| Short circuit of photovoltaic panel | The input terminal of the photovoltaic panel is short-circuited. When the short circuit condition is clear, the charging will continue automatically. |
| Overload | If the current of the load exceeds the rated current of the controller, the controller will disconnect the load. In case of overload, it can only reduce the power consumption equipment at the load end and press the setting button once to eliminate it. |
| Load short circuit | When the load is short-circuited, the controller will automatically protect it. After the controller automatically recovers the output, the protection action must be eliminated by pressing the setting button once. |
| Polarity reversal of the photovoltaic panel | The polarity of a photovoltaic panel is connected reversely, the controller will not be damaged, and it will continue to work normally after correcting the wiring error. |
| Battery polarity reverse protection | The battery polarity is connected reversely, the controller will not be damaged, and it will continue to work normally after correcting the wiring error. |
| Overheat protection | The controller automatically protects the radiator by detecting whether the temperature of the radiator exceeds 85 ℃, and stops charging and discharging when the temperature of the radiator exceeds 85 ℃. |
2.Troubleshooting of solar street lamp controller power generation system
| Troubleshooting of solar street lamp controller power generation system | |
| Phenomenon | 解决方案 |
| When there is direct sunlight photovoltaic module, the charging indicator (1) is not on; | Check whether the wiring at both ends of the battery power supply is correct and whether the contact is reliable; |
| The load indicator (3) is on, but there is no output;
| Please check whether the electric appliance is connected correctly and reliably; |
| The load indicator lamp (3) flashes fast and has no output;
| There is a short circuit in the output. Please check the output circuit. After removing all loads, press the setting button once, and the controller will return to normal output; |
| Load indicator light (3) flashes and no output | If the load power exceeds the rated power, please reduce the power consumption equipment. Press the setting button once and the controller will resume output. |
相关文章
Form E Certificate for solar street light
China has signed a free trade agreement with ASEAN countries. Some ASEAN customers of LUXMAN 太阳能路灯 are worried about their import tariffs. In fact, if the manufacturer can provide solar street light with FORM E Certification,
Then ASEAN importers do not need to pay importing tax when importing solar street lamp products from China.
Brief introduction
FORM E CERTIFICATE in Chinese is called CERTIFICATE OF PREFERENTIAL ORIGIN OF China-ASEAN FREE TRADE AREA, or CERTIFICATE OF ASEAN for short, and its English name is 《ASEAN-CHINA FREE TRADE AREA PREFERENTIAL TARIFF CERTIFICATE OF ORIGIN FORM E》. The issuance of FORM E certificates is limited to products entitled to tariff preferences under the published 《Agreement on trade-in goods》, which must comply with 《The rules of origin of the china-ASEAN free trade area》. The contents of the certificate shall be completed in English.
Agreement countries are Brunei, Cambodia, Indonesia, Laos, Malaysia, Myanmar, the Philippines, Singapore, Thailand, Vietnam.
FORM A shall be used when applying for the FORM E certificate in writing. The items of the application form should be filled in truthfully, and the same fields as the certificate should be consistent with the content of the certificate.
Role
In international trade, countries in the world generally implement import trade control according to their respective foreign trade policies and impose differential tariffs and quantitative restrictions on imported goods, and the customs carry out statistics. The FORM E certificate is the certificate of goods issued by the importing and exporting countries, and it is also an important certificate for international trade.
To sum up, it has the following functions:
(1) an important tool for determining tariff treatment of products and improving market competitiveness;
(2) to prove the internal quality of the product or the basis for foreign exchange settlement;
(3) the basis for trade statistics;
(4) the importing country implements the differential quantity control, carries on the trade management tool.
Tips:
Since January 1, 2004, all agricultural products exported to ASEAN (HS chapters 1-8) can enjoy preferential tariff treatment by virtue of the preferential certificate of origin of a China-ASEAN free trade area (FORM E) issued by the inspection and quarantine body. From July 20, 2005, more than 7,000 kinds of normal products began to reduce the overall tax. China and the six old ASEAN members (namely Brunei, Indonesia, Malaysia, the Philippines, Singapore, and Thailand) reduced their tariffs on 40% of the tariff items to 0-5% by July 2005; In January 2007 the tariff on 60% of the items will be reduced to 0-5%. Tariffs were eventually cut to zero on January 1, 2010. For Laos, Myanmar, and Cambodia, 50 percent of the tariff items were reduced to 0-5 percent by January 2009 and January 2012. In 2013, the 40 percent tariff was reduced to zero. Vietnam’s 50% tariff fell to 0-5% in 2010. Four other countries (Laos, Myanmar, Cambodia, and Vietnam) cut tariffs to zero in 2015.
Sample of Original solar street light with FORM E from LUXMAN:
相关文章
https://luxmanlight.com/how-to-choose-batteries-for-your-solar-street-light-project/
Nigeria SONCAP Certificate For Solar Street Light
Clients from Nigeria always have concerns about SONCAP Certificate For 太阳能路灯
SONCAP stands for the Standards Organization of Nigeria’s Conformity Assessment Programme and stands for Nigeria’s mandatory Conformity Assessment process. SONCAP is a new policy implemented by the Nigerian federal government to control the export of substandard and unsafe products to the country. SONCAP became effective on September 1, 2005, with a grace period of 90 days, i.e., December 1, 2005.
The purpose of the SONCAP
To ensure that controlled products exported to and entering the market in Nigeria comply with the relevant provisions of Nigerian industrial standards;
Ensuring a quality platform for imported goods and locally made products to prevent unfair market competition;
Prevent dumping of substandard goods on the Nigerian market, thereby avoiding losses to the state and importers;
Avoiding loss of life and property, including foreign exchange losses paid to exporters;
To prevent negative impacts, such as environmental pollution, arising from the destruction of substandard products by relevant regulatory bodies;
To facilitate trade by ensuring speedy clearance of imported goods;
SONCAP certification mandatory directory:
Except for the following:
1) food;
2) drugs;
3) medical products other than medical equipment and machinery;
4) as chemical raw materials for production;
5) military products;
6) import of products banned by the Nigerian government;
7) used products other than automobiles.
(mandatory listing of products to provide HS codes to confirm whether their products are within the regulated products.)
SONCAP process
To make this certificate, we need to apply for PC first. The importer will get the PC and apply for FORM M at the bank of the importing country. After the FORM M is available, we will apply for SONCAP certificate on our side before shipment, which can be directly used for customs clearance.
Step 1 apply for PC (product certificate)
There are three options as follows:
PC1=(unregistered product certificate) is equivalent to a one-time use certificate. Each shipment needs to be reapplied, and the shipment needs to be inspected. It is generally applicable to the case of an occasional shipment.
PC2=(registered status product certificate) is reusable and is valid for one year. The inspection rate is a quarterly sampling of 40%, generally applicable to multiple shipments. (high-risk products cannot be PC2)
PC3=(licensed status product certificate) is only issued to the manufacturer, a year of validity, inspection rate is half a year once, other batches of goods exempted from inspection, generally applicable to the delivery frequency.
Application for PC:
- The application form
- Test report (international standard or national standard report issued by CNAS qualification test)
- The ISOcertification
- Inspection
Step 2: apply for SONCAP certificate:
According to the situation of the company, choose one of the above three kinds of PCS, and then apply for SONCAP certificate. The inspection frequency of SONCAP certificate depends on the type of PC. Directly handle SONCAP certificate within the PC validity period.
Application for SONCAP certification in Nigeria:
- The application form
- PC scan copy
- Scanned copy of Form m (applied by the importer at the national bank of Nigeria according to the PC information)
- Invoice, packing list and bill of lading
LUXMAN produces the most authoritative SONCAP certification in the shortest period to ensure the smooth customs clearance of products exported to Nigeria. The product quality and service efficiency have been widely recognized by customers.
LUXMAN SONCAP Certificate of solar street light sample:
太阳能路灯杆验收标准
Requirements for material and process
- The main bar shall be formed in one time, and the welding seam of the steel bar (Q235) shall be flat and smooth, and the flatness error between the convex part of the welding seam of the whole bar and the bar shall not be greater than ± 1mm. (method to detect the error between the protruding part of the welding seam of the lamp pole and the adjacent flat place with the thickness gauge of the lamp pole.) The welding mode of lamp pole is automatic sub-arc welding, and the dye Detection Inspection meets the requirements of international standard GB / t3323-1989111. The lamp pole shall be fixed by threading nails and jacking screws. (visual inspection)
太阳能路灯 pole workmanship
- The anti-corrosion treatment is hot-dip galvanizing, and the surface of the galvanizing layer is required to be smooth and beautiful with consistent luster. There is no wrinkle, sagging, zinc tumor, peeling, spot, and defects on the internal and external surfaces. (the previous visual inspection) the thickness of the zinc layer is more than 85um (the thickness of the zinc layer is tested with a lamp post thickness gauge). The adhesion of the zinc layer shall meet the gb2694-98 standard to ensure that it will not fade for 8 years. The wind resistance of lamp-post shall be designed as per 36.9m/s. The anti-corrosion life of the lamp pole is more than 20 years. (the manufacturer shall provide relevant inspection reports of some national institutions)
- The thickness of plastic spraying on the surface of lamp pole shall be no less than 100um, the adhesion shall reach gb9286-880, the surface shall be smooth: the hardness shall be no less than 2h, the outdoor weather-resistant material shall be adopted, and the plastic spraying material shall be all polyester plastic powder. (hardness of the material is indicated by indentation diameter)
- The lamp pole process and acceptance standards shall be in accordance with the national standards. The design factor is 1.8. The design life of the lamp pole is more than 20 years. (inspection report provided by the manufacturer)
- The lamp pole shall be designed to facilitate the wire penetration and the hand hole door shall be in the form of backpack door. (visual inspection) the pole door must be flat and smooth, and the flatness error with this pole shall not be greater than ± 1mm (the flatness shall be detected by the pole detector). The interchangeability between the same pole door and the door shall be good, so as to meet the requirements of anti-theft and rainproof. After the cutting of the bar and door, the local reinforcement treatment is carried out to basically achieve the strength of the original integral bar. (change the small doors of two poles to see interchangeability)
- Appearance color: according to the color of the contract. (visual inspection)
The technical standard of solar street light pole:
Executive standard
- GB2694-88 quality of hot-dip galvanizing
- Gb10854-89 steel structure welding boundary dimension
- Gb77-88 carbon structural steel
- Gb1591-93 low-density structural steel technical specifications
- Gb2519-88 hot rolling steel plate including strip steel variety
- DL / t646-98 specification for manufacturing steel pole of transmission line
- Aasht01994 light pole, high pole and traffic signal pole
Technical parameters of solar street light pole:
- Taper: 12:1000
- Straightness deviation: < 0.2%
- Length deviation: < 5nlm
- Offset deviation: + 2mm
- Twist degree of lamp body: < 5 °
- Straightness of rod: < 1mm
- Bending arm-twist: < 2 °
- Offset deviation of bent arm part: < 15 °
- Perpendicularity deviation between flange and rod: < 1 °
- Deviation of flange welding position: < 2mm
- The thickness of zinc coating: ≥ 85um
- The thickness of plastic spraying on the surface of the lamp pole: ≥ 100um
- Design coefficient: 1.8
- Wind resistance: 36.9m/s
Technical test standard of solar street light pole:
- Adhesion test: the cross mark is vertically adhered with special adhesive tape for 12 times without peeling.
- Thickness test of the galvanized layer: take any 30 points, and the arithmetic mean value is greater than 86um.
- Salt spray resistance test: 5% NaCl, 35 ° C, 96 hours without yellow rust.
- Thickness uniformity test of zinc coating, copper sulfate immersion test for 6 times without copper hanging.
Technical parameters of polyester powder for lamp pole and lamp:
- State in the container: uniform color, loose without caking
- Sieve residue (88 um%): < 0.5
- Curing conditions: 180-200 ± 2 ° C for 10-20 minutes
- Appearance: flat and smooth, with slight anti orange wrinkle
- Film thickness: 100um
- Color: meet the standard color board and allowable color deviation range determined by the supplier and the demander
- Luster: high light ≥ 85%, half-light 51-84%, flat light 50-15%, no light < 14%
- Impact strength: 50kg / C ㎡
- Pencil hardness ≥ 2H (no scratch)
- Adhesion (cross-cut method): level 0
- Bending test (tapered shaft): 3mm pass
- Cupping test ≥ 6mm
Technical parameters of polyester powder for lamp pole and lamp:
- 1.State in the container: uniform color, loose without caking
- Sieve residue (88 um%): < 0.5
- Curing conditions: 180-200 ± 2 ° C for 10-20 minutes
- Appearance: flat and smooth, with slight anti orange wrinkle
- Color: meet the standard color board and allowable color deviation range determined by the supplier and the demander
- Luster: high light ≥ 85%, half-light 51-84%, flat light 50-15%, no light < 14%
- Impact strength: 50kg / C ㎡
- Pencil hardness ≥ 2H (no scratch)
- Adhesion (cross-cut method): level 0
- Bending test (tapered shaft): 3mm pass
- Cupping test ≥ 6mm
相关文章
https://luxmanlight.com/how-to-choose-batteries-for-your-solar-street-light-project/
System Design of Split-type Solar Street Light
The Split-type solar street light is composed of the solar panels (including bracket), lamp head, control box (with the controller, battery, etc.) and lamp pole, foundation, etc. Split-type Solar street lamps generally form their own power supply system and are not connected with the grid network. There are two kinds of 太阳能路灯 system: 12V and 24V.
Solar cell selection
1.Types:
Solar cells convert solar energy into electricity. There are three kinds of more practical solar cells: monocrystalline silicon, polycrystalline silicon, and amorphous silicon.
1) Monocrystalline silicon solar cell performance parameters are relatively stable. It is suitable for use in southern areas where there are more rainy days and less sunlight;
2) Polycrystalline silicon solar cell production process is relatively simple, the price is lower than monocrystalline silicon. It is suitable for use in the East and west areas with sufficient sunlight and good sunshine;
3) Amorphous silicon solar cells have low requirements for sunlight conditions and are suitable for outdoor areas with insufficient sunlight.
2.Working voltage
The working voltage of the solar cell is about 1.5 times the battery voltage, which can guarantee the normal charging of the battery. 8-9v is required for charging 6V battery
For solar cells, 15-18v solar cells are needed to charge 12V batteries. It needs a 33-36v solar cell to charge a 24V battery.
3.Output power WP
The output power per unit area of the solar cells is about 127wp / m2.
Solar cells are generally composed of multiple solar cells in series, and their capacity depends on the total consumption of lighting sources and transmission components.
Power and local solar radiation. The output power of solar cell should be more than 3-5 times of the light source power: when the light is abundant and the lamp is on
The short sunshine area is more than (3-4) times, and vice versa.
4 Average peak sunshine hours H
The output power WP of the solar cell is the 10L standard defined by the European Commission under the standard sunlight conditions, with the radiation intensity of 1000W / m2, The output power of solar cells at atmospheric quality AM1.5 and cell temperature 252c. The output power of the same solar cell is different at different times and different places. The so-called standard conditions are close to the sunshine conditions around noon on a sunny day.
Table 1 sunshine conditions in different regions of China
| Regional division | Rich regions | Relative Rich regions | Available areas | Poor area |
Annual total radiation （KJ/cm2.Year） | ≥580 | 500～580 | 420～500 | ≤420 |
|
Region | Western Inner Mongolia, western Gansu, southern Xinjiang, Qinghai Tibet Plateau | Northern Xinjiang, Northeast China, Eastern Inner Mongolia, North China, Northern Shanxi, Ningxia, Gansu, Eastern Qinghai Tibet Plateau, Hainan, Taiwan | Northeast North end, Inner Mongolia Hulun, lower reaches of the Yangtze River, Fujian, Guangdong, Guangxi, Guizhou, Yunnan, Henan, Shaanxi | Parts of Chongqing, Sichuan, Guizhou, Guangxi and Jiangxi |
| Continuous rainy days | 2 | 3 | 7 | 5 |
| 特点 | Annual sunshine≥3000h Percentage ≥0.75 | Annual sunshine 2400～3000h Percentage 0.6 ～ 0.7 | Annual sunshine 1600 ～2400h Percentage 0.6～ 0.4 | Annual sunshine≤1600h Percentage ≤0.4 |
5. Selection and installation of solar light components.
Generally, Split-type solar street light pole is more than 5m, with a high center of gravity. Most of the solar panels are hanging type, in order to enhance the wind resistance of the whole set of equipment, generally
Select the component power required by the composition of multiple solar panels.
Table-3 annual average sunshine time and optimal installation angle of major cities in China
| City | Latitude | Optimum inclination（0） | Annual average sunshine time（h） | City | Latitude | Optimum inclination（0） | Annual average sunshine time（h） |
| Harbin | 45.68 | +3 | 4.4 | Hangzhou | 30.23 | +3 | 3.42 |
| Changchun | 43.90 | +1 | 4.8 | Nanchang | 28.67 | +2 | 3.81 |
| Shenyang | 41.77 | +1 | 4.6 | Fuzhou | 26.08 | +4 | 3.46 |
| BeiJing | 39.8 | +4 | 5 | Ji’nan | 36.68 | +6 | 4.44 |
| Tianjin | 39.10 | +5 | 4.65 | Zhengzhou | 34.72 | +7 | 4.04 |
| Hohhot | 40.78 | +3 | 5.6 | Wuhan | 30.63 | +7 | 3.80 |
| TaiYuan | 37.78 | +5 | 4.8 | Changsha | 28.20 | +6 | 3.22 |
| Urumqi | 43.78 | +12 | 4.6 | Guangzhou | 23.13 | -7 | 3.52 |
| Xi Ning | 36.75 | +1 | 5.5 | Haikou | 20.03 | +12 | 3.75 |
| Lan Zhou | 36.05 | +8 | 4.4 | Nanning | 22.82 | +5 | 3.54 |
| Yinchuan | 38.48 | +2 | 5.5 | Chengdu | 30.67 | +2 | 2.87 |
| Xi An | 34.30 | +14 | 3.6 | Guiyang | 26.58 | +8 | 2.84 |
| Shang Hai | 31.17 | +3 | 3.8 | Kunming | 25.02 | -8 | 4.26 |
| Nan Jing | 32.00 | +5 | 3.94 | Lhasa | 29.70 | -8 | 6.7 |
Battery selection
The battery stores the power generated by the solar panel when it is illuminated, and then releases it when it needs lighting at night.
The Split-type solar street light system with battery is mainly discussed
Type selection
1) Lead-acid (CS) battery: suitable for low- temperature high rate discharge, low specific energy, most of the current Split-type solar street light. Maintenance- free sealing,The price is low. Pay attention to prevent lead-acid pollution, which should be phased out.
2) Nickel cadmium (Ni Cd) battery: high discharge rate, good low- temperature performance, long cycle life, small system. Pay attention to prevent cadmium pollution.
3) Ni-H battery: high rate discharge, good low- temperature performance, low price, pollution-free, green and environmental protection battery. Small system.
4) Lithium battery: small size, good temperature performance, no pollution, long life.
At present, lead-acid maintenance-free battery, ordinary lead-acid battery and alkaline nickel-cadmium battery are used less and less due to environmental protection and volume reasons. People tend to use more compact design lithium battery, especially the stable and long-life lithium iron phosphate battery.
Capacity selection
The capacity of the battery is too small to meet the needs of lighting at night, if the capacity is too large, the battery is always in a state of power loss, which affects the battery life,
It also causes waste. The ratio of battery capacity (ah) to load capacity (ah) should be more than 3-6 times: in areas with less days of continuous rainy days, it should be more than 3-4 times
It is 5-6 times more than that in rainy days.
Battery connection
When connecting in parallel, the unbalanced effect of each cell should be considered. The number of parallel groups should not exceed
Pay attention to battery anti-theft.
控制器
The operation of solar street lamp is controlled by controller. Most controllers realize intelligent control. The controller shall have the following functions:
1.Street lamp control
Light control, time control, temperature control and other functions are available. With dimming (or midnight lights) function
2.Battery management
Limit the charging and discharging conditions of the battery to extend its service life:
1) Anti reverse charging control:
2) Anti overcharge control:
3) Anti over discharge control;
4) Temperature compensation.
Automatic protection
Solar cell reverse connection protection, battery reverse connection protection, battery open circuit protection, anti reverse charging protection at night, output short circuit protection, etc.
Indicator light display
Display the working status of main components of solar street lamp: battery, solar cell, LED lamp, etc.
Controller voltage
Controller voltage = battery voltage.
Tilt angle design of solar cell
The solar cell angle inclination refers to the angle between the solar panel plane to the horizontal ground.
The inclination angle of solar cell module (which refers to the angle between the plane of solar cell and the ground plane) has been discussed in many technical circles. Tilt angle according to location.
Set (latitude, etc.) to determine; the front of the solar panel is facing the sun (or South slightly West), and the inclination angle is consistent with the local latitude. If conditions permit·
The tilt angle of solar panel can be adjusted according to the season.
Refer to “table-3” for the installation angle of solar cells in major cities in China.
Wind resistant design of Solar street lamp
wind resistant design of Solar cell module
According to the maximum wind power, the wind resistance design of olar street lamp is carried out:
Table 4 corresponding relationship between wind force and wind speed
| 名称 | Maximum wind speed（m/s） | Wind force (grade) | 名称 | Maximum wind speed（m/s） | Wind force (grade) |
| Tropical depression（TD） | 10.8 ～17.1 | 6～7(Bottom center) | Typhoon（TY） | 32.7 ～ 41.4 | 12 ～13 |
| tropical storm（TS） | 2 ～24.4 | 8～9 | violent typhoon（STY） | 41.5 ～ 50.9 | 14 ～15 |
| Strong tropical storm（STS） | 24.5 ～ 32.6 | 10 ～11 | Super typhoon（Super TY） | ＞51.0 | ≥16 |
Note: from “GB / T 19201-2006”
There are more typhoons in the south of China. The solar street lamp pole should be able to resist at least grade 12 typhoons, and most areas in the North should be able to resist grade 10 gales.
Wind resistance design of street lamp pole
1) Solar module: the manufacturer shall ensure that it can withstand the local wind speed without damage, with the emphasis on the connection between the battery module bracket and the light pole.
2) Lighting pole and foundation; wind resistance design of street lamp pole and foundation and height, area, inclination angle, pole structure, local maximum wind speed, etc. of battery board
Relevant, the calculation and design shall be carried out by the lamp pole manufacturer or structural discipline to ensure the stability of the Split-type solar street light pole at the maximum wind speed.
Main light source and application of solar lighting
There are two forms of light source and solar energy system:
HID lamp
1) Solar powered HID lamp electronic ballast (or trigger, the same below). ）In fact, it is a DC / AC high-value converter. Therefore, the Split-type solar street lighting system generally does not need additional DC / AC inverter to reduce the circuit loss. This form is suitable for the new solar street lamp project.
2) Equipped with traditional HID lamp electronic ballast: connected to AC220 mains power supply. Its electronic ballast is essentially AC / DC / AC high-frequency converter. If it is connected with solar energy system, DC / AC small power inverter shall be added between battery and hid lamp electronic ballast. This form is suitable for street lamp reconstruction.
LED lamp
Solar powered street light does not need additional DC / AC inverter to reduce the circuit loss too, it allows up to 65% energy savings than conventional solar street light.
Application: low power solar LED lamps are used in residential or commercial areas, such as 5W / 10W / 15W / 25W / 30W, etc. High power solar street lamps are generally used in industrial parks and road lighting, such as 40W / 60W / 80W / 100W / 120W.
Lightning protection and grounding
Safety voltage
The solar street lamp generally uses dcl2v or DC24V. It is a safe voltage and does not do electrical protection grounding
Lightning protection and grounding
1) Street lamps and solar panels shall not be used as lightning arresters;
2) Use metal lamp post as lightning arrester and downlead:
3) When the reinforcement cage of street lamp foundation is below -0.50m and the surface area of reinforcement is more than 0.37m2, it can be used as lightning protection grounding body. Otherwise, the artificial grounding electrode shall be added, with the grounding resistance ≤ 10 Ω. If necessary, connect the grounding body. The grounding method is the same as that of general street lamp
4) TVs (transient voltage suppression) lightning protection is set in the street lamp controller
Design example
Split LED solar street lights are to be installed on a pavement in Shanghai. The lamp is 5 meters high, the street lamp input voltage is 24V, the power is 70W, the work is 8.5h every day, to ensure the continuous rainy days 7 days to provide lighting.
Try the Split-type solar street light design.
1 solar cell selection
1) average annual sunshine time in Shanghai: check “table — 1” : 3.8h.
2) daily electricity consumption of street lamps:
(70/24) * 8.5 = 24.79 (Ah)
3) total charging current of battery:
(24.79 *1.05)/(3.8*0.85)=8.06(A)
1.05 is the comprehensive loss coefficient of the solar cell module system, and o. 85 is the charging efficiency of the battery.
4) total power of solar cells
8.06 * 31.17 = 251.23 (W)
Choose 2pcs Pm=135W solar panels in parallel. The best working voltage is 34.8V. Optimal operating current 3.88A. The component size is 800*1580*50mm
2.Battery selection
Battery capacity: 8.06*(7+1)=64.48(Ah)
Choose a maintenance-free DC24V – 70Ah lead-acid battery.
3.The controller
Select the intelligent controller. According to the requirements of Shanghai street lamp system, adjust the controller parameters and protect the street lamp batter
4. Angle of solar cell
Check “table — 1”, dip Angle of solar cells in Shanghai:
31．170+30=34.170
The direction of the solar pack is due south slightly to the west, with a horizon dip Angle of 34.170
5.Wind resistance design of lamp post
As far as possible to use solar street lamp sets of products, by the manufacturer to provide qualified supporting anti-wind lamppost material and basic drawings, or by the structure of professional technical personnel according to the local climate conditions of the lamp poles and foundation anti-wind design or verification.
相关文章
https://luxmanlight.com/how-to-choose-batteries-for-your-solar-street-light-project/
如何设计一体化太阳能路灯？
一体化太阳能路灯外观设计
"法国飞机设计师达索说："一架好的飞机必须是一架好看的飞机。一体化太阳能路灯也是如此。
以一体化太阳能路灯为例，其应用范围包括 太阳能 LED 路灯 太阳能一体化路灯已受到越来越多客户的关注和青睐，但在结构设计、照明创意、造型设计等方面也存在一些问题，给客户的使用和选择带来了不小的困惑。我们就一体化太阳能路灯在结构和外观设计上存在的五个问题进行探讨，并提出相应的解决方案。市场上单一的老式太阳能路灯存在的主要问题如下
首先，材料的表面处理难以长期经受恶劣环境的侵蚀。所有灯具都直接安装在室外，可能会遇到酸雨、沙尘暴、暴风雪、日照等恶劣环境。
由于铝合金所占比例较大，虽然经过阳极氧化处理后，其耐腐蚀性能已大大提高，但仍无法保证在安装灯具时氧化膜不被破坏。当氧化膜受到破坏时，铝合金的活性化学性质就会显现出来。在一些污染比较严重的地方，容易下酸雨，酸性水会积聚在灯体的一些缝隙中。雨过天晴后，缝隙中酸性水的蒸发会腐蚀灯体。被腐蚀的灯体不仅影响外观、散热，还会影响机械性能。
其次，常规的矩形外观设计不符合抗风要求。这里所说的长方体是指灯具的长方体，每个面都呈现大面积的平面。这样的平面容易受力，当风从一个平面垂直吹来的时候，其平面无法分化风力，从而对灯杆和灯具的固定结构造成压力。这种压力在一般情况下并不明显，但当灯杆经过长时间的老化和腐蚀后，如果在沿海地区遇到台风，就有可能出现灯杆倾斜或弯曲或灯具掉落的危险。
三是涂胶处理导致的LED路灯故障率高。涂胶处理主要是指由于先天的外形设计原因，在生产过程中需要涂抹大量的工业胶水进行防水处理，往往会导致以下三个问题：1.涂胶不均匀，导致漏水；
2.灯具长期使用，造成内部胶水老化，导致防水功能减弱或完全丧失；
3.灯体内部粘合过多和不整齐可能会导致散热不良，影响锂电池和 LED 灯珠。
这将导致电池在雨天进水或 LED 老化更快，故障率更高。
第四，整体设计带来后期维护困难。整体设计是指将灯具整个光源腔设计成一个不可维护的整体，或将光源模块或电池封装设计成一个不可维护的整体。近年来的实践表明，LED灯具不可能做到100%免维护。而这种整体式灯具就是无法维护，一般路灯出现故障后，无法在天车上完成维修任务，要换整灯返回厂家维修。这种做法迫使生产厂家既要成为生产商，又要成为服务商，成本很高。
针对这五个问题，我们讨论了一些解决方案。对于第一个和第二个问题，我们认为灯具需要结构式防水，减少胶水用量，尽可能做成流线型多角度灯体，要有合理的散热孔和导流面设计。这样，产品就有了三个优点：1、流线型的外形有利于将大部分水引向地面，减少酸碱物质对灯具的腐蚀；2、流线型的表面可以大大减少上方灰尘和积雪的堆积，有利于散热，减轻灯杆和灯具的压力；3、多角度的表面可以将风力分化成多个方向，减轻灯杆和灯具的压力。
对于第三和第四个问题，我们建议用模块化设计取代灯具的整体设计。
对于第五个问题，建议应从操作者的角度考虑灯具的设计，并注意设计中的细节。
在设计方面，与传统照明相比，一体化太阳能路灯LED模块具有体积小、阵列方式灵活等特点，可以实现多样、精美的产品设计。此外，照明设计工程师应结合地域文化，开发工业化、艺术化的设计产品。各地都有自己独特的地域文化和风俗习惯。只有根据当地特色设计的灯具才能更受人们欢迎，也能让游客更了解当地特色。
此外，照明设计师不仅要精通照明常识，还要不断提高自身的综合素质，深入生活，懂得发现和感受生活中的美，将情感融入到作品的设计中，从而实现有生命力、有思想的灯具设计。
随着中国市场竞争的日益激烈和国际化程度的不断提高，很多中小企业缺乏市场网络和品牌的支撑，应该走专业化发展道路，注重产品质量。企业的发展重点在于如何开发出高质量、长寿命、低价格的产品，从而创造消费者、企业和政府三方共赢的局面。
相关文章
How to Extend the Lifespan of Integrated Solar Street Light
The service life of the integrated solar street light is mainly affected by four factors: solar panel, controller, lamp module and battery pack, and the most important is the service life of lithium battery. The life span of the solar street lamp directly affects the subsequent maintenance cost of customers.
The integrated solar panel is mainly divided into monocrystalline silicon, polycrystalline silicon, and amorphous silicon. The conversion efficiency of monocrystalline silicon solar panel is the highest, the photoelectric conversion efficiency is about 15%, and the highest is 24%. However, the charging effect on rainy days is not as good as polycrystalline silicon, and the production cost is high. As monocrystalline silicon or polycrystalline silicon is generally encapsulated by toughened glass and waterproof resin, it is durable and has a service life of 15 years, up to 25 years. The output power efficiency is 90% after 15 years and 85% after 25 years.
Different brands of LED Chips have a different service life. At present, integrated solar street lamps use LED lamps. The LED lamps have high luminous efficiency and service life of up to 50000 hours. Theoretically, 12 hours a day can be used for 11 years.
For the integrated solar street lamp controller, it is not only necessary to control, monitor and maintain the operation status of photovoltaic modules, lithium batteries and loads but also need to control the lithium batteries to ensure the operation status of lithium batteries. At the same time, it directly maintains the load of the solar street lamps and provides a useful and relatively stable working environment, especially in critical conditions such as lithium battery power shortage or Undervoltage operation.
Reminder: a high precision, high stability controller plays a very critical role, can effectively extend battery life.
The lithium battery life of Luxman light factory’s series of integrated solar street lamps can reach about 6-8 years.
To sum up, the comprehensive service life of integrated solar street lamps is about 8 years, during which there is no maintenance, no electric charge, energy-saving, and environmental protection. Compared with the street lamps with traditional electric lighting, it can save a lot of costs and also contribute to the protection of the environment.
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