company news about Selection of rated current of fuse link in photovoltaic system and requirements for installation location

         For the protection of the photovoltaic string, the fuse should be installed at the position where the photovoltaic string wire is connected to the photovoltaic sub-array wire, such as the photovoltaic combiner box such as the sub-array combiner box. The rated current of the fuse link should be within the range of 1.4-2.4 ISC-MOD. ISC-MOD refers to the short-circuit current of the photovoltaic panel or photovoltaic string under standard test conditions, which is the specification value stipulated by the photovoltaic panel manufacturer on the product nameplate.

        For the protection of the photovoltaic sub-array, the fuse should be installed at the position where the photovoltaic sub-array wire is connected to the photovoltaic array wire, such as the photovoltaic connection box such as the photovoltaic array combiner box. The rated current of the fuse link should be within the range of 1.25-2.4 ISCS-ARRAY. ISCS-ARRAY refers to the short-circuit current of the photovoltaic sub-array under standard test conditions, which is equal to n times the short-circuit current ISC-MOD of the photovoltaic string, where n is the sub-array The number of parallel PV strings in the array.