Unverified88% confidenceCautionTime unknown
屏蔽线(STP/SFTP)必须两端配合屏蔽水晶头并做接地,否则屏蔽层浮空反而形成天线拾取干扰,家用非屏蔽设备用屏蔽线可能更差
1
Sources
88%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Related Claims
Unverified屏蔽线(STP/SFTP)必须做接地才能发挥抗干扰作用,家庭布线普遍未接地,此时屏蔽线反而可能形成天线效应引入干扰,家用室内优先选非屏蔽UTP90% similarUnverified家用室内环境电磁干扰小,选UTP非屏蔽即可;STP/SFTP屏蔽线必须两端接地才有效,家用一般无正规接地反而可能引入干扰81% similarUnverified非屏蔽UTP更柔软易施工、无需接地,普通室内环境完全够用;屏蔽STP/SFTP必须两端可靠接地才有效,接地不良反而会引入干扰81% similarUnverifiedUTP(非屏蔽)适合绝大多数家庭和普通办公,STP(屏蔽)仅在强电磁干扰环境(工厂、机房、与强电并行敷设)才需要;STP必须全程接地否则屏蔽层反而成天线增加干扰,家用没接地条件时不要买STP73% similarUnverified屏蔽越强越抗干扰但越硬越难穿管布线,家用暗管布线优先选柔软的UTP非屏蔽线,仅弱电箱附近有变压器/强电时考虑STP70% similar
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