Photovoltaic system fire causes analysis and fire prevention suggestions

With regard to the development of photovoltaics, as of now, the entire global holdings are particularly large. Our entire market is very large, but there is a very serious problem in it. That is the BIPV issue, that is, the issue of fire protection. The probability of occurrence is not very great, but the degree of impact is very large. Let's talk about what components in this area are worth sharing.

We talk about components, that is, because there are several places for fire protection, the first one is our backplane, its ignition point is around 360 degrees, and the number of junction boxes is also over 300 degrees. Based on this, if we say our products There is a hot spot phenomenon inside, and it is easily obstructed. When customers did, they found that there were two places that needed to be raised. The first one was that our products, such as wiring, were generally more than 900 millimeters long. Some customers said that they should be longer and prevent accidents. They were made of 1200 millimeters, but the materials used were long. The risk is even greater.

Why? A customer is very good, it is so required, when the component is installed, the line is a large U-shaped, we can firmly maintain the cable for 8 years, if the cable is always shaking, for example, in the desert, when cold Shaking every day, the place will easily break. How did we do it? We gave the customer a clip and stuck the cable. For us, component manufacturers need to control the junction box and our backplane. These two factors have a great impact on our power station.

Our components are all DC, and it is difficult to shop. Unless burned, the reasonable working range of the components is -40 to 85 degrees above zero, but there is no guarantee that the temperature will increase in a small spot in the short term. If there is a bit of blockage, the blocked area becomes a resistor. If it is less than 0.6 ohms, it does not matter. The entire assembly is a power generating unit and a power consuming unit.

We went back to the second question. Regarding the way of installation, I've been to many projects and there are more than 700 voltages. We have also developed and obtained certification. When you do the power station, we are now on the top row. The next time you come back, or if there is no problem in the horizontal installation, it can be vertical, but the problem is that there will be problems in the shelter area.

What do we do now? Put all the lines in this row one line, if you follow 1500 volts, then row 30, so that there are 3 rows in a row in a row, this benefit avoids occlusion. If you say that you are hot, if you do not generate electricity, you either skip it or you will continue to heat up. We have to go around and each group will come out with three routes.

For the analysis of the PR value of the power station, we have adopted a variety of component arrangement methods for the power station, including double-glass components and single-glass components. The main purpose is to make comparisons.

Finally, in terms of some minor details, the installation, especially the installation of the roof, is now getting bigger and bigger. It must be hard intercepted, not touched, and not to make fire.