熱縮護套管，半導電管
熱縮護套管具有良好的絕緣性和抗開裂性,主要用于電纜的外保護層的修補和電纜中間連接的外層保護。
Heat shrink protection cover tube has good insulation and ruptuing resistance .It suitable for mend of cable out-layer protection and outlay protection of intermediate connecting .

護管套技術(shù)指標i'vetective tube technical index

序號 Order No.	內(nèi)容 Content	單位 Unit	指標 Index
1	硬度 Hardness degree	邵氏Shao	≥90
2	抗張強度 Tensile strength	Mpa	≥13.0
3	斷裂伸張率 Break extension rate	%	≥300
4	熱老化120℃ Heat aging 120 ℃ 168h		K1＞0.8 K2＞0.7
5	吸水率 Water alsorption	%	≤0.1
6	體積電阻系數(shù) Volume resistance coefficient	Ω.cm	≥1014
7	擊穿強度 Disruptive strength		≥20
8	收縮溫度 Shrinkage temperature	℃	120-130

熱縮半導電管適用于高壓電纜中起屏蔽用。
Heat shrinkable semi-conductive tube Applied to hig-voltage cable accessory to make effect of shield .
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