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RSST Heat Shrinkable Stress Control Tube

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RSST
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Product manual
Performance
Specifications

RSST Heat shrinkable stress control tube

Heat shrinkable stress control tube is the core component of power cable accessories and mainly helps to disperse the stress. They are used for the voltage rated up to 36KV.

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Main technical performance

Items Unit Specifications Test methods
Tensile strength MPa ≥13 ASTM D2671
Elongation at break % ≥300 ASTM D2671
120℃ 168h Heat aging   K1>0.8 K2>0.7 ASTM D2671
Volume resistance Ω· cm 108~1012 ASTM D2671
Dielectric constant   ≥20 IEC 250
Shrink temperature 120~130  
Water absorption   ≤0.5% ASTM D570

Size

Size As supplied (mm) After recovery (mm) Cable range(mm2)
I.D.   I.D. Wall thickness
RSST—25/9 ≥24 ≤9 2.1±0.25 Special design
RSST—30/13 ≥28 ≤14 2.1±0.25 25~50
RSST—35/16 ≥33 ≤17 2.1±0.25 70~120
RSST—40/19 ≥38 ≤20 2.0±0.25 150~240
RSST—50/22 ≥50 ≤22 2.5±0.25 Special design
RSST—60/26 RSST—65/26 ≥58 ≥65 ≤27 2.5±0.25   above 300
RSST—80/33 ≥80 ≤33 3.0±0.4 Special design
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