10mm2 solar cable and 16mm2 solar cable 's difference

     In the entire photovoltaic power plant system, in addition to photovoltaic modules, cables are an indispensable part, and the selection of cables is also very important for the calculation of LCOE. For different components, the following factors should be considered when selecting cables:

     • The cable must be able to safely load the operating current and short-circuit current of the component.

     • The size of the cable should be large enough to ensure that the loss generated by the cable is within an acceptable range and to maintain the most economical balance between the capital cost and operating cost (loss) of the enterprise. LCOE calculation formula.

     LCOE formula: line loss (cable voltage %) = cable length x maximum current x resistivity at a given temperature / (cable cross-sectional area x wire voltage)

     • The size of the cable should prevent the voltage drop from exceeding the legal limit and affecting the performance of the equipment.

     In order to reduce line loss, larger components need to increase the cross-sectional area of ​​the cable. Different cable specifications (10mm2 and 16mm2) were selected for the same level of line loss control, and the total cable prices per watt of different components in different system designs were further compared.

     In the two different types of systems, the total cable cost per watt of larger-sized components will be higher. Especially for wiring, the cost of cables occupies a considerable amount, which will directly lead to a significant increase in the total cost of the system.

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