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https://e2e.ti.com/support/isolation-group/isolation/f/isolation-forum/1195441/faq-is-ul-1577-double-protection-rating-equivalent-to-reinforced-insulation-per-iec-60747-17
UL 1577双重保护等级是否相当于符合 IEC 60747-17标准的增强型绝缘？
否、UL 1577要求与 IEC 60747-17中的增强型绝缘要求完全不同。 不能假定具有 UL 双重保护等级的组件符合 IEC 增强型绝缘要求、反之亦然。
