How do different sites and different temperatures affect the performance of photovoltaic cables

        Temperature is a fundamental concept to understand. In real life if something is too hot, it will melt or catch fire, if something is too cold, it will freeze or break. This is true for everything from metals, food, clothing, and even liquids.

How do different temperatures affect the performance of photovoltaic cables?
        A consistent problem in extremely cold environments is power outages (power failures/blackouts). This usually happens when large numbers of people use high levels of energy. These temporary outages often occur on cold days, especially in communities with older homes because the systems are older and more energy intensive. These types of heaters require a lot of energy to heat a home compared to more developed systems, and when many homes connected via the same photovoltaic cable start consuming a lot of power at the same time, the photovoltaic cable and associated transformers may struggle to keep up with demand.

        Another reason for the problem is the cold itself. Either boiling high or icy low temperatures will result in the internal components being slightly less efficient than when the internal components operate at optimal Settings. Recent technological improvements in photovoltaic cables may be able to function more efficiently in extreme temperatures, but those moving electronics will need to work harder to achieve the same results as they do on more favorable days anyway.

Why is temperature an important consideration for electrical applications?
        Extreme temperatures (cold or hot) can adversely affect photovoltaic cables, thus causing the product to become brittle and inflexible. Photovoltaic cables harden and break at freezing temperatures when installed in unsuitable conditions, and to combat freezing temperatures, photovoltaic cables with sufficient low temperature ratings are required.

Temperature rating of electrical materials
Conductor/shielding wire：
silver-plated copper =200°C-250°C
tinned copper = 250°C(27% nickel 450°C-550°C).
stainless steel =250°C

Extrude insulation/sheath：
Gaseous polymer(PFA、FEP、ECA、ETFE)--Gas-containing polymers maintain properties over a certain temperature range. PFA can be used from -200°C to 250°C
ECAcan be used up to 300°C 
Polyester - Like fluoropolymers, polyester is not very flexible and is therefore used for primary insulation and thin sheathing. Maintain performance as low as -100 ° C and below
TPE- Excellent flexibility retention at low temperatures. TPE has been successfully used in temperatures as low as -100° C
Tridnc-most TridNNC-grades can accept -75°C to 150 °C, but specific grades can extend to -90 °C or up to 250 °C

Industry standard: rated temperature
        The safety standards of different industries, which have been continuously improved over the years, enable highly resistant photovoltaic cable products to be used in extremely harsh application environments. The cold bend test is one of the more common UL standards, while the cold shock test is another popular test used to determine whether photovoltaic cables can be labeled with a lower temperature class. Examining applications in each industry is critical because each job has a different set of security standards that must be met.

        There are several important considerations for photovoltaic cable applications to successfully and safely complete the application. Over the years, different standards have been proposed for specific geographical areas, which are constantly improved to enable photovoltaic wire and cable applications to be completed safely and cost-effectively.

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