Unverified85% confidenceDecision RuleTime unknown
连接器外壳应认准阻燃等级V0（UL94标准），V0级在离火后10秒内自熄且不滴落引燃物，是墙内暗装的安全底线，V2级仅适合明装可视场景
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85%
Confidence
Long-term
Relevance
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