Unverified88% confidenceCautionTime unknown
水下持续浸泡或水管接头防漏不要用普通PVC电工胶带，PVC背胶遇水会逐渐失效脱开，应改用防水自融胶带或专用防水胶布
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88%
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Long-term
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Unverified户外或潮湿环境长期使用不建议单用PVC胶带，应先用自粘防水绝缘胶带（自融胶带）打底再用PVC胶带外缠，防止水分侵入导线89% similarUnverified接触水的场景应选标注PU膜或聚氨酯薄膜材质的防水贴，普通PVC防水贴仅防溅水，泡水后仍会渗透脱胶87% similarUnverified高压电缆接头修复应使用绝缘自粘带（防水胶泥+自粘硅胶带）而非普通PVC胶带，普通PVC在潮湿环境会渗水导致绝缘失效87% similarUnverified户外或潮湿环境不建议单用普通PVC胶带做绝缘防水，长期紫外线和水汽会导致胶层老化脱胶，应选自融胶带或防水专用胶带86% similarUnverifiedPVC材质防泼溅和轻度浸水有效，但不适合长时间浸泡或存放大量液体，实际防水能力介于普通布袋和密封防水袋之间85% similar
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