Solar Bimetal Self-tapping Screw

The Solar Bi-metal self-tapping screws with stainless steel 304 in head and Carbon Steel SCM 435 for drilling 0.5-2mm steel or aluminum.The stainless steel head are high level of corrosion protection and fast drilling on metal roof,it reduces the swarf and prevent rusting on roof.

Material:Stainless Steel 304/316+Carbon Steel SCM435

Screw Length:5.5X25mm,6.0(6.3)x25mm

Sealing Washer:Stainless Steel 304φ16mm with EPDM

Head type:Hexagon Head

Surface Settlement:Luxiubao(Ruspert) or Galvanizing

Drill Capacity through Steel:0.5-2.00mm

Drill Capacity through Aluminium:0.5-2.00mm

Application:Trapezoidal/Corrugated Metal Roof

Service:OEM/ODM is accepted

Color:Silver

Please check the Video for reference

https://www.youtube.com/watch?v=6-5ROp_kYsk&t=43s

If you are interesting in the screw or other screws,please contact to Email:sales9@landpowersolar.com

The Stainless Steel Adjustable Trapezoidal Roof Clamp is a more popular now, specially designed for installation on the trapezoidal roof of the photovoltaic bracket clamp. It has a height-adjustable function and can adapt to the trapezoid color steel tile roof of different heights. This fixture is usually made of aluminum alloy or stainless steel material, with high strength and corrosion resistance, can ensure the stable installation of photovoltaic panels and long-term use.

1. Easy installation. The use of pre-assembled support accessories, on-site installation saves time and labor, can greatly reduce the construction cost, improve the engineering efficiency.
2. High durability. Stainless steel 304 is used to ensure the durability of the fixture.
3. You're adaptable. the adjustable design makes this fixture suitable for most of the trapezoid color steel tile roofs.
4. Good waterproof effect. The two sides of the fixture are sealed with EPDM gaskets, which has excellent waterproof effect and avoids water leakage caused by installation ‌.
In short, the trapezoidal roof adjustable fixture has become an indispensable tool in photovoltaic installation with its easy installation, high durability, strong adaptability and excellent waterproof effect.
If you need this product,  please feel free to contact us. With 12 years experience,we can do very cometitive prices with high quality,  hope can work with you to cut your cost and reach mutual benefit. (sales7@landpowersolar.com)

Solar lighting technology has become essential in contemporary outdoor design, providing energy efficiency, easy installation, and visual appeal. With a variety of mounting options available, choosing the right solar lights for your area is simpler than ever. Whether you need to illuminate a pathway, improve security, or brighten outdoor seating areas, the appropriate mounting option guarantees both functionality and style.

For locations such as entrances, garages, or patios, wall mounted solar lights are an excellent option. These lights are designed for easy attachment to walls, seamlessly integrating with architectural elements while delivering sufficient brightness. Many wall-mounted models come equipped with motion sensors for enhanced security and customizable settings to match your lighting needs. Their elevated position allows for extensive coverage without taking up ground space, making them perfect for smaller areas.

If flexibility is desired, solar ground plug lamps provide ultimate convenience. These lights are easy to install and move because of their robust ground stakes. They are perfect for lighting garden paths, flowerbeds, or driveways, adding both practicality and charm to outdoor environments. With no wiring needed, solar ground plug lamps are also an environmentally friendly way to illuminate landscaping without disturbing its natural aesthetics.

For larger outdoor lighting requirements, such as parking lots or community areas, solar street lights with pole installation are an excellent choice. Built for durability and high performance, these lights offer bright, dependable illumination. Their pole-mounted design maximizes light distribution, while integrated solar panels and energy-efficient LEDs reduce maintenance needs. These solar street lights are a practical solution for improving safety in both public and private areas.

When it comes to high-quality solar lighting, SLD, Solar Lights Do, is a reputable brand. They offer a diverse range of innovative products that combine advanced technology with modern design to cater to various outdoor lighting requirements. Whether you are looking for wall-mounted lights, ground plug lamps, or pole-mounted street lights, SLD guarantees outstanding performance and durability. Visit www.solightsdo.com to explore complete product range and see how solar lighting can enhance space.

Solar energy is revolutionizing outdoor lighting by providing an environmentally friendly and economical alternative to conventional lighting. Thanks to improvements in solar panel efficiency, battery technology, and LED lighting, solar-powered fixtures are increasingly favored for for gardens, parks, pathways, and public areas.

The attractiveness of solar energy stems from its sustainability. Outdoor solar lights collect sunlight during the day and convert it into electricity to illuminate LEDs at night. This process eliminates the need for wiring, cuts energy costs, and reduces carbon emissions. As awareness of environmental issues rises, solar powered lighting is becoming a key component of urban planning and landscape architecture.

Contemporary solar outdoor lighitng systems come with features such as motion sensors, adjustable brightness settings, and smart controls that enable users to tailor lighting schedules. Improvements in battery technology have enhanced energy storage, allowing lights to operate effectively even on cloudy days or during prolonged use. Additionally, advancements in solar panel design have boosted their efficiency, resulting in smaller and more visually appealing lights.

Solar lighting has expanded beyond residential applications. It is now commonly used to light up walkways, parking lots, sport fields, and even remote locations with limited electricity access. The ease of installation without extensive groundwork makes these lights suitable for both temporary and permanent setups.

SLD, Solar Lights Do, is a company that focused on producing and selling high-quality solar powered outdoor lamps. We provide a diverse selection of efficient and durable solar lighting solutions for outdoor applications. If you’re interested, please visit us at www.solarlightsdo.com.

CONSNANT Outdoor Telecom Cabinet boasts several advantages in terms of functionality, materials, protection level, applications, and user experience. Here is a description of its advantages:

1. Functionality: CONSNANT Outdoor Telecom Cabinets are specifically designed to house and protect sensitive telecommunications equipment in outdoor environments. They provide a secure and controlled environment for equipment such as servers, switches, power supplies, and batteries, allowing for reliable and uninterrupted operation.

2. Materials: These cabinets are constructed using high-quality materials that are capable of withstanding harsh outdoor conditions. They are usually made of rugged and durable materials such as stainless steel, aluminum, or composite materials. These materials provide excellent resistance to corrosion, rust, extreme temperatures, and UV radiation.

3. Protection level: CONSNANT Outdoor Telecom Cabinets are built to provide a high degree of protection for the equipment housed inside. They typically have a high IP (Ingress Protection) rating, such as IP65 or IP66, which means they are effectively sealed against dust, water, and other environmental factors. This level of protection ensures the equipment remains safe and operable even in challenging weather conditions.

4. Security: These cabinets are equipped with robust locking mechanisms and security features to prevent unauthorized access and vandalism. They often include tamper-proof locks, alarm systems, and CCTV surveillance capabilities. This enhances the overall security of the telecom equipment and prevents unauthorized tampering or theft.

5. Thermal Management: CONSNANT Outdoor Telecom Cabinets are engineered with efficient thermal management systems to regulate the temperature inside the cabinet. They may feature cooling fans, heat exchangers, or air conditioning systems to dissipate heat generated by the equipment. This ensures optimal operating conditions and prevents overheating, which can lead to equipment failure.

6.Applications: CONSNANT Outdoor Telecom Cabinets find applications across a range of industries and settings, including telecommunication networks, industrial facilities, transportation infrastructure, remote sites, and outdoor events. They are essential for establishing reliable and secure communication networks in these diverse environments.

7. User Experience: CONSNANT Outdoor Telecom Cabinets are designed to provide a positive user experience. They often feature ergonomic designs, user-friendly interfaces, and easy equipment access for maintenance and servicing. Additionally, these cabinets may include remote monitoring capabilities, allowing operators to monitor equipment status and performance in real-time from a central location.

Overall, CONSNANT Outdoor Telecom Cabinets offer functional, durable, and secure solutions for housing telecom equipment in outdoor environments. They provide protection against environmental elements, ensure optimal equipment performance, and enhance the user experience through robust security measures and convenient maintenance features.

Battery C Rating Explanation And Calculation

What Is Battery C Rating?

The battery C rating can be defined as the measure at which a battery is discharged relative to the maximum capacity of the batteries.

A battery’s charge and discharge rates are controlled by battery C rating. In other terms, it is the governing measure of at what current the intended batteries is charged or discharged and how quickly that occurs.

The capacity of a battery is generally rated and labeled at 3C rate(3C current), this means a fully charged battery with a capacity of 100Ah should be able to provide 3*100Amps current for one third hours, That same 100Ah battery being discharged at a C-rate of 1C will provide 100Amps for one hours, and if discharged at 0.5C rate it provide 50Amps for 2 hours.

The C rate is very important to know as with the majority of batteries the available stored energy depends on the speed of the charge and discharge currents.

Why The C Rating Are Different Between Different Battery?

1C means 1 hour discharge time.

2C means 1/2 hour discharge time.

0.5C means 2 hour discharge time.

In many applications, the battery rate is very important. For example, we want the car to be fully charged within half an hour, instead of waiting for 2 hours, or even 8 hours. What is cause influence to the battery C rating?

There are two limitations to how fast a battery can be charged-thermal heating and mass transfer limitations.

Thermal heating occurs because the internal resistance of the battery generates excessive heat, which must be dissipated to the environment.

When charging occurs at very high currents, the heat generated within the battery cannot be removed fast enough, and the temperature quickly rises.

Mass transfer of Li+ ions during fast charge results in diffusion limiting current even if the electrodes are made of nanoparticles with high surface area. While the high surface area allows sufficient rate of lithiation or de-lithiantion, the Li+ diffusion through the cross-sectional area of the electrolyte within the separator is limited. It is quite possible to fast- charge for a limited time restricted to the Li-ions already presented in the electrolyte withing the electrode. This unssteady state diffusion can last until the Li+ ions are depleted and their supply is limited by the cross-sectional area of the battery.

This mass transfer limitation occurs because the transference number of Li+ is smaller than 1. While Li+ions carry a fraction of the current in the electrolyte, they carry 100% of the current at the electrode; thus depletion of Li+ occurs near the anode, resulting in diffusion limiting current. Any attempt to surpass the limiting current results in solvent decomposition, heating and deterioration of the battery.

So different material battery will have different rate, the typical NCM lithium battery C rating is 1C, and maxium C rate can reach 10C about 18650 battery. the typical LiFePO4 lithium battery C rating is 1C, and the maxium C rate can reach 3C about LiFePO4 prismatic battery.

Battery C Rating Chart

Below chart shows the different battery C rating and their discharge time.When we caculate them, the battery C rating should use same caculation as the same energy.

Battery C Rating Chart

For most of lithium battery, here is the picture to show the discharge curve in different C rate.

Battery Discharge Curve In Different Battery C Rating

For most lead-acid batteries, we should know that even for the same battery, the battery capacity at different battery C rating is different. To get a reasonably good capacity reading, lead acid batteries manufacturers typically rate lead-acid batteries at 20 hours(A very low 0.05C).

How To Calculate The C Rating For The Battery?

A battery’s C rating is defined by the time of charge and discharge.

C-rate is an important information or data for any battery, if a rechargeable battery can be discharged at that C rating, a 100Ah battery will provide about 100A, then the battery has a discharge rate of 1C. If the battery can only provide a maximum discharge current of about 50A, then the discharge rate of the battery is 50A/100Ah=0.5C.

C-rate (C) = charge or discharge current in amperes (A) / rated capacity of the battery(Ah)

Therefore, calculating the C rating is important for any battery user and can be used to derive output current, power and energy by:

Cr = I/Er

Er = Rated energy stored in Ah

I = Charge/discharge current in A

Cr = C rate of the battery

t = Charge/discharge duration

Calculate charge and discharge time

t = Er / I

100Ah Lithium Battery C Rate Example

For same 100Ah lithium battery,

1C means 100Ah*1C=100A discharge current available.

1C means 100Ah/100A=1 hours discharge time Capable.

It means the battery can be use for 60minute (1h) with load current of 100A.

2C means 100Ah*2C=200A discharge current available.

2C means 200Ah/100A=0.5 hours discharge time Capable.

It means the battery can be use for 30minute (0.5h) with load current of 200A.

0.5C means 100Ah*0.5C=50A discharge current available.

0.5C means 100Ah/50A=2 hours discharge time Capable.

It means the battery can be use for 120minute (2h) with load current of 50A.

Sometimes analyzer capacity readings are given as a percentage of the nominal rating. For example, if a 1000mAh battery can supply this current for about 60 minutes, read 100%. However, if the battery lasts only half an hour before the cut-off point, the displayed value is 50%. Sometimes a brand new battery can provide more than 100% capacity. The battery can be discharged using an analyzer which allows you to set your favorite C rate. If the battery is discharged at a lower discharge rate it will show a higher reading and vice versa. However, you should be aware of differences in battery analyzer capacity readings for different C rates, which are related to the internal resistance of the battery.

What Are The Effects Of C Rating On Lithium-ion Batteries?

After we caculated above, we know more higher the C rating on a battery, the faster the energy can escape the batteries to power the application. The C rating on any battery depends on its application. Because some electronics require large amounts of power supply thus need batteries with high C ratings, For example, the motorcycle starter, you only needs needs a few seconds to power the motors quickly. But for some application, the discharge time only need need low C rating, Such as the soalr light, you want them to power for whole night or several nights.

What Is The C Rating Of My Battery?

You’ll usually find the battery’s C-rate on the battery’s label and on the battery’s data sheet. Different battery chemistries sometimes show different battery C rates.

Generally speaking,

Lithium iron phosphate batteries typically have a discharge rate of 1C

NCM batteries typically have a discharge rate of 3C

Lead-acid batteries are generally rated for a very low discharge rate, typically 0.05C, or 20 hour rate.

If you cannot find the battery C rating on the label or datasheet, we recommend contacting the battery manufacturer directly.

In Conclusion

The C-rate is a unit used to identify a current value/discharge time of a lithium-ion battery under different conditions. Since you have had a clear view of what the C rating is , and what it stands for in a battery, you will need to include it in your next selection for batteries to get the best out of what you settle for.

China's first 10,000-ton-level photovoltaic hydrogen production project was put into operation, with a hydrogen production capacity of 20,000 tons/year by electrolysis of water, and zero carbon emissions in the whole process.

On June 30, my country's first 10,000-ton photovoltaic green hydrogen demonstration project - Sinopec Xinjiang Kuqa Green Demonstration Project will be put into operation to produce hydrogen.

This marks the first time that my country has realized the industrial application of large-scale photovoltaic power generation direct hydrogen production process and engineering complete set of technology, providing a replicable and scalable demonstration case for the development of domestic photovoltaic power generation hydrogen production industry.

Green hydrogen is directly produced by renewable energy such as solar energy and wind energy, and basically does not produce greenhouse gases during the production process.

The project utilizes abundant solar energy resources in Xinjiang to directly produce green hydrogen. The hydrogen production capacity of electrolyzed water is 20,000 tons/year, the hydrogen storage capacity is 210,000 standard cubic meters, and the hydrogen transmission capacity is 28,000 standard cubic meters per hour.

The green hydrogen produced will be supplied to the nearby Sinopec Tahe River Industry to completely replace the existing natural gas fossil energy hydrogen production, which can reduce carbon dioxide emissions by 485,000 tons per year.

Find effective power quality solutions

Power quality refers to the stability and reliability of electrical power supply. In recent years, the demand for high-quality power has increased due to the growing reliance on electronic devices and the need for uninterrupted operations in various industries. Power quality problems can lead to equipment damage, production losses, and increased maintenance costs. Therefore, finding effective power quality solutions is crucial.

One of the main power quality issues is voltage sags and interruptions. These are brief and sudden decreases in voltage levels, often caused by faults in the power distribution system or the starting of large electrical loads. Voltage sags can cause electronic equipment to malfunction or shut down, leading to significant financial losses. To mitigate this issue, voltage regulators and uninterruptible power supply (UPS) systems can be installed. Voltage regulators stabilize voltage levels, while UPS systems provide backup power during outages, ensuring uninterrupted operations.

Another power quality problem is harmonic distortion. Harmonics are unwanted currents or voltages that are multiples of the fundamental frequency. They are mainly caused by non-linear loads, such as variable speed drives, computers, and fluorescent lighting. Harmonics can damage equipment, reduce system efficiency, and cause electromagnetic interference. To address harmonic distortion, harmonic filters and active power filters can be implemented. Harmonic filters reduce the level of harmonics in the electrical system, while active power filters actively cancel out the harmonics, ensuring a clean power supply.

Power factor is another important aspect of power quality. Power factor is the ratio of real power to apparent power and indicates how effectively electrical power is being used. A low power factor can result in higher energy costs, as utilities often charge penalties for low power factor. Power factor correction devices, such as capacitors, can be installed to improve power factor. These devices reduce reactive power, increase system efficiency, and reduce energy consumption.

Transient voltage surges, also known as voltage spikes, are another power quality concern. These are short-duration increases in voltage levels, often caused by lightning strikes or switching operations. Transient voltage surges can damage sensitive electronic equipment. Surge protectors and voltage limiters can be used to prevent or mitigate the effects of voltage spikes. Surge protectors divert excess voltage to the ground, while voltage limiters limit the maximum voltage level.

In conclusion, power quality problems can have significant consequences for industries and individuals. However, with the right power quality solutions, these issues can be effectively addressed. Voltage regulators, UPS systems, harmonic filters, active power filters, power factor correction devices, surge protectors, and voltage limiters are some of the solutions available to ensure stable and reliable power supply. By implementing these solutions, businesses can minimize equipment damage, production losses, and maintenance costs, ultimately improving their operations and productivity.

CONSNANT  relevant products:

AHF(Active Harmonic Filter)

SVG(Static Var Generator)

1.Harmonic Mitigation

2.Phase Balancing

3.Power Factor Correction

Installation method: Stand, Wall Mount and Rack Mount  

How many types of UPS are there?

There are several types of UPS (Uninterruptible Power Supply) available on the market, each designed to meet different power protection needs. Common types of UPS include standby UPS, line-interactive UPS, and double-conversion UPS.

Standby UPS is the most basic type of UPS and is often used for personal computers and small electronics. It provides power only when the input voltage falls below a certain threshold, switching to battery power when needed.

Line-interactive UPS is a step up from standby UPS, offering additional features such as automatic voltage regulation to stabilize the output voltage and protect equipment from power surges and sags.

Double-conversion UPS is the most advanced type of UPS, providing continuous power protection by converting incoming AC power to DC power and then back to AC power. This type of UPS offers the highest level of protection against power disturbances and is commonly used for critical applications such as data centers and medical equipment.

In addition to these three main types, there are also modular UPS systems that can be customized and expanded to meet specific power requirements, as well as rack-mounted UPS units for use in server rooms and data centers.

Overall, the type of UPS you choose will depend on the specific needs of your equipment and the level of protection required. It is important to carefully consider factors such as power capacity, runtime, and efficiency when selecting a UPS for your application.

SHENZHEN CONSNANT TECHNOLOGY CO., LTD

Add: Building B6, Junfeng Industrial Park, Fuhai Sub-District,Bao'an District, Shenzhen City, 518103 P. R. China.

Tel: 008-755-29772622https://www.consnant.com29772623  Fax: 0086-755-29772626

Web: www.consnant.com     

E-mail: sales@consnant.com 

Mobile: Kevin +8613501592453