C106 semi conducting / insulated / rubber insulated three-layer co extruded heat shrinkable tube
Product features
Cross linked polyolefin material, thick wall heat shrinkable pipe Operating temperature: - 55 ~ 105 ºC
Three layer coextrusion heat shrinkable tube with high retraction stress Shrinkage temperature: 135-150 ºC
The inner rubber layer can expand and contract with the cable Voltage level: 6-36 kV
Eliminate partial discharge Halogen free and environmental protection; Products comply with RoHS
technical parameter
Product performance test method Test data
Inner rubber insulation
physical property tensile strength ASTM D2671 ≥6 MPa
elongation at break ASTM D2671 ≥400%
After aging (136 ºC / 168 hours) tensile strength ASTM D2671 ≥4.2 MPa
elongation at break ASTM D2671 ≥300%
Maximum service temperature IEC 216 105 ºC
Water absorption (23 ºC / 336 hours) ASTM D570 ≤0.5%
density ASTM D2671 0.95~1.05
Low temperature flexibility (- 55 ºC / 4h) ASTM D2671 No cracking
Hardness (Shore D) ASTM D2671 ≤ 30 HD
Electrical performance Breakdown strength (immersed in insulating oil) ASTM D 2671 ≥15kV/mm
Volume resistivity ASTM D 2671 ≥1.0 × 1014 Ω·cm
Intermediate insulating layer
physical property tensile strength ASTM D2671 ≥10.5 MPa
elongation at break ASTM D2671 ≥400%
After aging (136 ºC / 168 hours) tensile strength ASTM D2671 ≥10.5 MPa
elongation at break ASTM D2671 ≥350%
Maximum service temperature IEC 216 105 ºC
Water absorption (23 ºC / 336 hours) ASTM D570 ≤0.5%
density ASTM D2671 1.05~1.15
Low temperature flexibility (- 40 ºC / 4h) ASTM D2671 No cracking
Thermal shock (200 ºC / 30 minutes) ASTM D2671 No cracking
Hardness (Shore D) ASTM D2671 ≥ 48 HD
Electrical performance Breakdown strength (immersed in insulating oil) ASTM D 2671 ≥15kV/mm
Volume resistivity ASTM D 2671 ≥1.0 × 1013 Ω·cm
Outer semiconductive layer
physical property tensile strength ASTM D2671 ≥20 MPa
elongation at break ASTM D2671 ≥350%
After aging (158 ºC / 168 hours) tensile strength ASTM D2671 ≥16 MPa
elongation at break ASTM D2671 ≥300%
Maximum service temperature IEC 216 135 ºC
Water absorption (23 ºC / 336 hours) ASTM D570 ≤0.5%
density ASTM D2671 1.05~1.10
Thermal shock (250 ºC / 30 hours) ASTM D2671 No dripping or flowing; No cracking
Low temperature flexibility (- 40 ºC / 4h) ASTM D2671 No cracking
Hardness (Shore D) ASTM D2671 ≥ 55 HD
Electrical performance Volume resistivity ASTM D 2671 ≤1.0 × 104 Ω·cm
Inner rubber insulating layer & middle insulating layer & Outer Semiconducting Layer
Halogen free IEC 61249-2-21 CL: 900ppm max
Br: 900ppm max
Total (Cl + BR): 1500ppm max
