What is the difference between PV cables and low voltage cables?

When installing a photovoltaic system, you need to clearly specify the low-voltage and photovoltaic cables. Since these cables are planned for different applications, the performance characteristics may vary. For example, low-voltage cables are suitable for indoor or maintenance environments, but are usually not suitable for outdoor applications. An exception to this rule is when cables are buried underground, as there are no applications planned for PV cables to meet this requirement. However, PV cables are suitable for installation in cable ducts where the cable is not earthed. This would be particularly useful if there is rodent damage in the environment where the cable is used. Higher operating temperatures also vary between low voltage and PV cable products. This aspect should be considered at the specification stage when determining the suitability of a chosen product for a particular application. In accordance with IEC 62930 and BS EN 50618, to ensure continuous operation over the life cycle, the higher connection operating temperature for LV cable products is 90°C, whereas the higher connection operating temperature for PV cable products is 120°C. PV cables must be ozone-resistant, but low voltage cables are not. Although the basic functions of low-voltage and photovoltaic cables are the same for power transmission, they respond differently to the environment depending on the cable plan.

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