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Heat Shrinkable Tube for Busbar

Performance Standard: DL/T1059-2007

Heat shrinkable tube on bus bar can be used in HV/LV circuit breaker-cabinet in power plant & substation for bus bar protective/insulation material against short circuit due to small animal creeping to energized bus bar. Protective for human being touching the energized parts. anti-pollution & condensate caused flash over. At the same time it can reduce the distance between phases and phases to ground and prolong the age of use.

Features.-

  • Material:  cross-linked polyolefin.
  • Operating temperature: -45 oC ~ 105 oC.
  • Shrink temperature: start at 100 oC and shrink totally at 130 oC.
  • Color: Red, green, yellow, blue, black.

Product Dimensions (10 kV Heat shrinkable tube on bus bar)
Order Ref. No. As supplied After recovery Suitable for Rectangular Busbar (mm) Suitable for Circular Busbar (mm)
ID Wall Thickness ID Wall Thickness
Ø 20 ≥ 20 1.2 ≤ 8 2.5 ± 0.1 20 15
Ø 25 ≥ 25 1.2 ≤ 11 2.5 ± 0.1 25 15
Ø 30 ≥ 30 1.2 ≤ 13 2.5 ± 0.1 30 20
Ø 40 ≥ 40 1.2 ≤ 16 2.5 ± 0.1 40 25
Ø 50 ≥ 50 1.3 ≤ 18 2.8 ± 0.1 50 30
Ø 60 ≥ 60 1.3 ≤ 25 2.8 ± 0.1 60 40
Ø 70 ≥ 70 1.3 ≤ 29 2.8 ± 0.1 70 50
Ø 80 ≥ 80 1.3 ≤ 34 2.8 ± 0.1 80 55
Ø 100 ≥ 100 1.3 ≤ 41 2.8 ± 0.1 100 75
Ø 120 ≥ 120 1.3 ≤ 48 2.8 ± 0.1 120 85
Ø 150 ≥ 150 1.3 ≤ 62 2.8 ± 0.1 150 105
Ø 180 ≥ 180 1.3 ≤ 73 2.8 ± 0.1 180 120
Ø 210 ≥ 210 1.3 ≤ 84 2.8 ± 0.1 210 130
Ø 230 ≥ 230 1.2 ≤ 85 2.8 ± 0.1 230 135
Ø 250 ≥ 250 1.5 ≤ 102 3.9 ± 0.2 240 140
Ø 275 ≥ 275 1.4 ≤ 102 3.9 ± 0.2 250 145
Ø 300 ≥ 300 1.6 ≤ 110 3.9 ± 0.2 300 160

 

Product Dimensions (35 kV Heat shrinkable tube on bus bar)
Order Ref. No. As supplied After recovery Suitable for Rectangular Busbar (mm) Suitable for Circular Busbar (mm)
ID Wall Thickness ID Wall Thickness
Ø 20 ≥ 20 2.0 ≤ 8 4.8 ± 0.2 20 15
Ø 25 ≥ 25 2.0 ≤ 10 4.8 ± 0.2 25 15
Ø 30 ≥ 30 2.0 ≤ 15 4.8 ± 0.2 30 20
Ø 40 ≥ 40 2.0 ≤ 16 4.8 ± 0.2 40 25
Ø 50 ≥ 50 2.0 ≤ 20 5.0 ± 0.2 50 25
Ø 60 ≥ 60 2.0 ≤ 25 5.2 ± 0.2 60 30
Ø 70 ≥ 70 2.0 ≤ 30 5.2 ± 0.2 70 35
Ø 80 ≥ 80 2.0 ≤ 32 5.2 ± 0.2 80 40
Ø 100 ≥ 100 2.0 ≤ 40 5.2 ± 0.2 100 75
Ø 120 ≥ 120 2.0 ≤ 50 5.2 ± 0.2 120 85
Ø 150 ≥ 150 2.0 ≤ 60 5.2 ± 0.2 150 105
Ø 180 ≥ 180 2.2 ≤ 70 5.6 ± 0.2 180 120
Ø 210 ≥ 210 2.1 ≤ 80 5.8 ± 0.2 210 130

 

Technical Data
Property Test Method Standard Value
Operating temperature IEC 216 -45 oC to +105 oC
Tensile strength ASTM-D 638 ≥ 13 MPa
Elongation at break ASTM-D 638 ≥ 300%
Tensile strength after aging ASTM-D 2671/120 oC, 168 hrs ≥ 11 MPa
Elongation at break after aging ASTM-D 2671/120 oC, 168 hrs ≥ 220%
Dielectric Strength IEC 243 ≥ 20 kV/mm
Tracking resistance ASTM-D 2303 3.75 Kv, 1h, pass
Volume resistance ASTM-D 2303 ≥ 1x1014 Ω.cm
Dielectric constant IEC 250 3.0
Longitudinal shrinkage - ≤ 10%
Eccentricity ASTM-D 267 ≤ 30%
Water absorption ISO 62 ≤ 0.1%
Flammability (Oxygen index) IEC 93 ≥ 28
Copper corrosion ASTM-D 2671 120 oC, 168 hrs, no corrosion
Cold bend ASTM-D 2671 -40 oC, 4 hrs, no cracking
Minimum shrink temperature - 100 oC
Minimum fully recovered temperature - 130 oC

 


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