照明标准中工作电压数学加法、电路间绝缘和PELV使用的说明
Explanation of the mathematical addition of working voltages, insulation between circuits and use of PELV in lighting standards
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发布于：2024-10-26
实施于：2024-10-26
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Explanation of the mathematical addition of working voltages, insulation between circuits and use of PELV in lighting standards