Guangzhou Kebao insulation products Co., Ltd.

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Medium & Heavy Wall Tube

KB-BT(1KV) BusBar heat shrink tube

Material:Corss-linked modified polyolefin
Shrinkage ratio:2:1 2.5:1
Features:
• halogen-free environment, low smoke, the product complies “RoHS” environmental standards;
• has good insulation properties;
• Good flexibility;
• Minimum shrink temperature: 110 ℃;
Applications: This product is widely used in low voltage switch cabinet bus insulation protection, effectively prevent personal injury or death caused by live nude row; avoid small animals and conductor lap caused a short circuit, discharge failure occurs, to prevent corrosion, contamination, flashover occurrence, increase insulation margin, effectively shortening the distance between the stage, the pole distance, create favorable conditions for switchgear compact design.

Item Test method Indicator Values
Tensile strength ASTM D2671 ≥10MPa 15.4MPa
Elongation at break ASTM D2671 ≥450% 583%
Tensile Strength After Aging ASTM D2671/136°C/168h ≥10MPa 14.2MPa
After aging the tensile elongation at break ASTM D2671/136°C/168h ≥400% 541%
Thermal Shock 200°C±3°C/4h Without dripping, flowing or crack Passed
Low temperature flexibility ASTM D2671/-40°C/4h No cracking No cracking
Breakdown strength ASTM D2671 ≥19kV/mm ≥25.7kV/mm
Volume resistivity ASTM D876 ≥1.0×1014Ω· cm ≥5.3×1014Ω· cm
Water absorption ASTM D570A ≤0.5% 0.23%

 

Size As Supplied/mm After Recovered/ mm Standard Package (m/roll)
ID (Min) Wall Thickness ID (Max ) Wall Thickness
30/15 31.5±1.0 0.50 ±0.15 ≤15 0.95±0.15 50
35/18 36.5±1.5 0.50 ±0.15 ≤18 1.00±0.15 50
40/20 41.5±1.5 0.55 ±0.15 ≤20 1.00±0.15 50
45/23 46.5±1.5 0.55 ±0.15 ≤23 1.00±0.15 25
50/25 51.0±2.0 0.55 ±0.15 ≤25 1.00±0.15 25
60/30 60.0±3.0 0.60 ±0.20 ≤30 1.30±0.20 25
65/33 65.0±3.0 0.60 ±0.20 ≤33 1.30±0.20 25
70/35 70.0±3.0 0.65 ±0.20 ≤35 1.30±0.20 25
75/38 75.0±3.0 0.65 ±0.20 ≤38 1.30±0.20 25
80/40 80.0±3.0 0.65 ±0.20 ≤40 1.46±0.20 25
85/43 85.0±3.0 0.65 ±0.20 ≤43 1.46±0.20 25
90/45 90.0±4.0 0.65 ±0.20 ≤45 1.46±0.20 25
100/50 100.0±4.0 0.65 ±0.20 ≤50 1.46±0.20 25
120/60 120.0±4.0 0.65 ±0.20 ≤60 1.46±0.20 25
150/75 150.0±4.0 0.65 ±0.20 ≤75 1.46±0.20 25
180/90 180.0±4.0 0.65 ±0.20 ≤90 1.46±0.20 25
 210/105 210.0±4.0 0.65 ±0.20 ≤105 1.46±0.20 25
230/115 230.0±4.0 0.65 ±0.20 ≤115 1.46±0.20 25
250/125 250.0±5.0 0.65 ±0.20 ≤125 1.46±0.20 25
300/150 300.0±5.0 0.65 ±0.20 ≤150 1.46±0.20 25
Item Test method Indicator Values
Tensile strength ASTM D2671 ≥10MPa 15.4MPa
Elongation at break ASTM D2671 ≥450% 583%
Tensile Strength After Aging ASTM D2671/136°C/168h ≥10MPa 14.2MPa
After aging the tensile elongation at break ASTM D2671/136°C/168h ≥400% 541%
Thermal Shock 200°C±3°C/4h Without dripping, flowing or crack Passed
Low temperature flexibility ASTM D2671/-40°C/4h No cracking No cracking
Breakdown strength ASTM D2671 ≥19kV/mm ≥25.7kV/mm
Volume resistivity ASTM D876 ≥1.0×1014Ω· cm ≥5.3×1014Ω· cm
Water absorption ASTM D570A ≤0.5% 0.23%

 

Size As Supplied/mm After Recovered/ mm Standard Package (m/roll)
ID (Min) Wall Thickness ID (Max ) Wall Thickness
30/15 31.5±1.0 0.50 ±0.15 ≤15 0.95±0.15 50
35/18 36.5±1.5 0.50 ±0.15 ≤18 1.00±0.15 50
40/20 41.5±1.5 0.55 ±0.15 ≤20 1.00±0.15 50
45/23 46.5±1.5 0.55 ±0.15 ≤23 1.00±0.15 25
50/25 51.0±2.0 0.55 ±0.15 ≤25 1.00±0.15 25
60/30 60.0±3.0 0.60 ±0.20 ≤30 1.30±0.20 25
65/33 65.0±3.0 0.60 ±0.20 ≤33 1.30±0.20 25
70/35 70.0±3.0 0.65 ±0.20 ≤35 1.30±0.20 25
75/38 75.0±3.0 0.65 ±0.20 ≤38 1.30±0.20 25
80/40 80.0±3.0 0.65 ±0.20 ≤40 1.46±0.20 25
85/43 85.0±3.0 0.65 ±0.20 ≤43 1.46±0.20 25
90/45 90.0±4.0 0.65 ±0.20 ≤45 1.46±0.20 25
100/50 100.0±4.0 0.65 ±0.20 ≤50 1.46±0.20 25
120/60 120.0±4.0 0.65 ±0.20 ≤60 1.46±0.20 25
150/75 150.0±4.0 0.65 ±0.20 ≤75 1.46±0.20 25
180/90 180.0±4.0 0.65 ±0.20 ≤90 1.46±0.20 25
 210/105 210.0±4.0 0.65 ±0.20 ≤105 1.46±0.20 25
230/115 230.0±4.0 0.65 ±0.20 ≤115 1.46±0.20 25
250/125 250.0±5.0 0.65 ±0.20 ≤125 1.46±0.20 25
300/150 300.0±5.0 0.65 ±0.20 ≤150 1.46±0.20 25

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