Solar Photovoltaic (PV) systems are common and continue to gain popularity. This article helps electrical workers and firefighters understand basic operating principles and hazards of PV dc arrays.

中文翻译：

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太阳能/光伏直流系统：基础和安全

太阳能光伏 (PV) 系统很常见，并且越来越受欢迎。本文帮助电气工人和消防员了解光伏直流阵列的基本工作原理和危害。