熱縮護(hù)套管，半導(dǎo)電管
熱縮護(hù)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(hù)層的修補(bǔ)和電纜中間連接的外層保護(hù)。
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(hù)管套技術(shù)指標(biāo)i'vetective tube technical index
| 序號(hào) Order No. |
內(nèi)容 Content |
單位 Unit |
指標(biāo) Index |
| 1 |
硬度 Hardness degree |
邵氏Shao |
≥90 |
| 2 |
抗張強(qiáng)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(qiáng)度 Disruptive strength |
|
≥20 |
| 8 |
收縮溫度 Shrinkage temperature |
℃ |
120-130 |
熱縮半導(dǎo)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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