According to the design requirements of grid-connected power generation in photovoltaic system, a certain number of photovoltaic elements are combined into a DC lightning protection combiner box according to the component parameters, temperature characteristics and the DC voltage range and the maximum power tracking voltage range input by the photovoltaic inverter ). Six components of the lightning protection box of PV modules: The photovoltaic components of the junction box wiring 6 into 1 out, that is, the same size of the 6-level bus after the confluence of the output of a DC output. The photovoltaic components confluence box has the following characteristics: 1) Protection class IP65, to meet the requirements of outdoor installation. 2) can access 6 battery serial, each battery serial allows the maximum current 13A; 3) The junction box provides protection of strings in a centralized PV system; 4) Protection with Bussmann-PV PV fuses ensures fast response to errors and alarms; 5) Up to 10 wires installed in parallel in the same wiring box, the positive and negative are equipped with fuse protection device. 6) There are many ways to connect the PV panel cables
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