IEC 62368-1 Clause 5.6 protective conductor

bluesky · 发表于 2021-12-25 17:32:10

Under single fault conditions, a protective conductor may serve as a supplementary safeguard to prevent accessible conductive parts from exceeding ES2 limits.
这个是什么意思，请帮忙给一个实际实例？

江湖人称朱大侠 · 发表于 2021-12-27 11:01:18

相线碰壳的基本绝缘失效，由保护导体承担短路故障电流，低阻抗保证人体接触电压与电流不超过ES2

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[电子电气AVIT] IEC 62368-1 Clause 5.6 protective conductor