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Heat Shrink Tube
01
Extremely High Insulation Performance Busbar Heat Shrink Tube in China factory directly
Product Features
-
◎ Excellent Electrical Insulation
• Voltage ratings: 1KV, 10KV, 35KV, catering to diverse voltage scenarios.
• Breakdown voltage: ≥35KV/mm, ensuring safe operation in high-voltage environments.
• Insulation resistance: ≥10¹⁴ Ω·cm, effectively isolating contaminants and preventing leakage. -
◎ Good Flame Retardancy and Safety
• Shrink ratio: 2:1 or 3:1 (radial shrinkage ≥50%), ensuring tight adherence to busbar surfaces.
• Shrinkage temperature: starts at 80℃, fully shrinks at 120℃, with fast shrinkage speed.
• Continuous operating temperature: -55℃～105℃, suitable for extreme climates.
• Tensile strength: ≥10.5 N/mm², with high tear resistance to prevent installation damage. -
◎ Environmental & Chemical Resistance
• Chemical resistance: withstands acid, alkali, and salt corrosion, extending busbar lifespan.
• Moisture & dust resistance: dense insulation layer prevents water vapor and dust ingress, maintaining stable electrical performance.
• Animal protection: prevents short circuits caused by rodents or snakes. -
◎ Safety & Compliance
• Flame retardancy: UL 224 certified, meeting VW-1 standards for fire safety.
• Environmental compliance: ROHS 2.0 compliant, lead-free and halogen-free, supporting sustainability.
Technical Specifications
Parameter |
Value |
Material |
(Radiation-Crosslinked Polyolefin) |
Color |
(Red, Yellow, Green) |
Density |
1.2 g/cm³ |
Water Absorption |
≤0.5% |
Certification Standard |
UL 224、ROHS 2.0、IEC 60811-1-1 |
Applications
-
◎ Substation busbar protection: reduces phase spacing, preventing short circuits and accidental electric shocks.
◎ High/low-voltage switchgear: offers insulation, anti-rust, and mechanical protection, adapting to miniaturization trends.
◎ Industrial equipment: safeguards busbar connections in motors, transformers, etc.
Installation Instructions
-
◎ Preparation Steps
• Clean busbar surfaces to remove oil and dust.
• Select tubing size based on busbar dimensions. -
◎ Shrinkage Operation
• Heat with a heat gun or oven at 120℃～140℃ until fully shrunk.
• Avoid localized overheating to prevent material degradation. -
◎ Quality Inspection
• Post-shrinkage inspection: ensure no wrinkles or bubbles; insulation thickness deviation ≤±10%.
• For irregular busbar joints, use custom tubing for segmented protection.
Packaging & Storage
-
◎ Packaging: coiled or straight-cut, 50 meters per roll, sealed in moisture-proof bags.
◎ Storage conditions: -20℃～30℃, relative humidity <70%, avoid direct sunlight.
Key Advantages Summary
-
◎ Compact design: reduces phase spacing, enhancing space efficiency.
◎ Full environmental protection: moisture, dust, corrosion, and animal-resistant.
◎ Safety compliance: UL, ROHS certified, ensuring electrical safety.
◎ Easy installation: fast shrinkage, simplifying construction.
Performance Parameter
Test Item |
Test Method |
Test Value |
Tensile Strength |
ASTM D638 |
≥ 12MPA |
Breakage Elongation |
ASTM D638 |
≥ 300% |
Tensile Strength after aging |
ASTM D638 |
≥ 10MPA |
Elongation after aging |
ASTM D638 |
≥220% |
Longitudinal Shrink Ratio |
ASTM D2671 |
±5% |
Dielectric Constant |
ASTM D2671 |
≥ 18Ω.CM |
Breakdown Strength |
ASTM D149 |
≥ 25KV/MM |
Volume Resistivity |
ASTM D257 |
1014Ω.CM |
Volume Resistivity at 20℃ |
ASTM D257 |
1014Ω.CM |
Oxygen Index |
ASTM D2863 |
≥ 26% |
Water Absorption |
ASTM D570 |
≤0.2% |
Density |
ASTM D792 |
1.25G/CM3 |
Eccentricity |
ASTM D792 |
30% |
Fully Contraction Temperature Ratio |
ASTM D792 |
130±5℃ |
Test Item |
Test Method |
Test Value |
Tensile Strength |
ASTM D638 |
≥ 13MPA |
Breakage Elongation |
ASTM D638 |
≥ 450% |
Tensile Strength after aging |
ASTM D638 |
≥ 12MPA |
Elongation after aging |
ASTM D638 |
≥400% |
Longitudinal Shrink Ratio |
ASTM D2671 |
±5% |
Dielectric Constant |
ASTM D2671 |
≥ 18Ω.CM |
Breakdown Strength |
ASTM D149 |
≥ 25KV/MM |
Volume Resistivity |
ASTM D257 |
1014Ω.CM |
Volume Resistivity at 20℃ |
ASTM D257 |
1014Ω.CM |
Oxygen Index |
ASTM D2863 |
≥ 30% |
Water Absorption |
ASTM D570 |
≤0.2% |
Density |
ASTM D792 |
1.25G/CM3 |
Eccentricity |
ASTM D792 |
30% |
Fully Contraction Temperature Ratio |
ASTM D792 |
130±5℃ |
Product Specification Sheet
Specification |
Before Contraction |
After Contraction |
Packing Method |
||
Inner Diameter(MM) |
Wall Thickness(MM) |
Inner Diameter(MM) |
Wall Thickness(MM) |
||
LMPG-10-φ12/6 |
12±0.1 |
0.63±0.05 |
12±0.1 |
1.25±0.05 |
25M/Roll |
LMPG-10-φ16/8 |
16±0.1 |
0.75±0.05 |
16±0.1 |
1.5±0.05 |
25M/Roll |
LMPG-10-φ20/10 |
20±0.1 |
0.80±0.05 |
20±0.1 |
1.6±0.05 |
25M/Roll |
LMPG-10-φ25/12.5 |
25±0.1 |
0.85±0.05 |
25±0.1 |
1.75±0.05 |
25M/Roll |
LMPG-10-φ30/15 |
30±0.1 |
0.90±0.05 |
30±0.1 |
1.85±0.05 |
25M/Roll |
LMPG-10-φ40/20 |
40±0.1 |
0.98±0.05 |
40±0.1 |
2.0±0.05 |
25M/Roll |
LMPG-10-φ50/25 |
50±0.1 |
0.98±0.05 |
50±0.1 |
2.0±0.05 |
25M/Roll |
LMPG-10-φ60/30 |
60±0.1 |
1.05±0.05 |
60±0.1 |
2.1±0.05 |
25M/Roll |
LMPG-10-φ70/35 |
70±0.1 |
1.05±0.05 |
70±0.1 |
2.1±0.05 |
25M/Roll |
LMPG-10-φ80/40 |
80±0.1 |
1.15±0.05 |
80±0.1 |
2.3±0.05 |
25M/Roll |
LMPG-10-φ90/45 |
90±0.1 |
1.15±0.05 |
90±0.1 |
2.3±0.05 |
25M/Roll |
LMPG-10-φ100/50 |
100±0.1 |
1.20±0.05 |
100±0.1 |
2.4±0.05 |
25M/Roll |
LMPG-10-φ120/60 |
120±0.1 |
1.25±0.05 |
120±0.1 |
2.5±0.05 |
25M/Roll |
LMPG-10-φ150/75 |
150±0.1 |
1.25±0.05 |
150±0.1 |
2.5±0.05 |
25M/Roll |
LMPG-10-φ180/90 |
180±0.1 |
1.30±0.05 |
180±0.1 |
2.6±0.05 |
25M/Roll |
Specification |
Before Contraction |
After Contraction |
Packing Method |
||
Inner Diameter(MM) |
Wall Thickness(MM) |
Inner Diameter(MM) |
Wall Thickness(MM) |
||
LMPG-35-φ30/15 |
30±0.1 |
1.46±0.05 |
30±0.1 |
3.0±0.05 |
20M/Roll |
LMPG-35-φ40/20 |
40±0.1 |
1.46±0.05 |
40±0.1 |
3.0±0.05 |
20M/Roll |
LMPG-35-φ50/25 |
50±0.1 |
1.46±0.05 |
50±0.1 |
3.2±0.05 |
20M/Roll |
LMPG-35-φ60/30 |
60±0.1 |
1.60±0.05 |
60±0.1 |
3.2±0.05 |
20M/Roll |
LMPG-35-φ70/35 |
70±0.1 |
1.60±0.05 |
70±0.1 |
3.2±0.05 |
20M/Roll |
LMPG-35-φ80/40 |
80±0.1 |
1.60±0.05 |
80±0.1 |
3.2±0.05 |
20M/Roll |
LMPG-35-φ90/45 |
90±0.1 |
1.60±0.05 |
90±0.1 |
3.2±0.05 |
20M/Roll |
LMPG-35-φ100/50 |
100±0.1 |
1.60±0.05 |
100±0.1 |
3.2±0.05 |
20M/Roll |
LMPG-35-φ120/60 |
120±0.1 |
1.65±0.05 |
120±0.1 |
3.3±0.05 |
20M/Roll |
LMPG-35-φ150/75 |
150±0.1 |
1.65±0.05 |
150±0.1 |
3.3±0.05 |
20M/Roll |
LMPG-35-φ180/90 |
180±0.1 |
1.65±0.05 |
180±0.1 |
3.3±0.05 |
20M/Roll |
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