High Voltage Heat Shrink
High voltage heat shrink allows shortening the distance between phase busbars and significantly reducing the dimensions of the device.
High voltage heat shrink tube can protect electrical busbars against chemical corrosion and protects equipment from short circuits in case of contact of electrical devices with animals and birds.
High Voltage Heat Shrink
Resistance to flame and corrosion
Superior insulated and chemical properties
- 10KV High Voltage Heat Shrink Tube
- 20KV High Voltage Heat Shrink Tube
- 35KV High Voltage Heat Shrink Tube
Technical Data
| Property | Test Method | Standard Value |
| Tensile Strength | ASTM-D-2671 | ≥100Mpa |
| Elongation at Break | ASTM-D-2671 | ≥400% |
| Tensile Strength After Aging | ASTM-D-2671 | ≥8Mpa(120℃， 168hrs） |
| Elongation at Break After Aging | ASTM-D-2671 | ≥320%(120℃， 168hrs） |
| Dielectric Strength | IEC 60243 | ≥25KV/mm |
| Dielectric Constant | IEC 250 | ≤0.3 |
| Longitudinal Shrinkage | ASTM-D-2671 | ≤10% |
| Water Absorption | ISO 62 | ≤0.5% |
| Flammability (Oxygen Index) | IEC 4589 | ≥28 |
| Copper Corrosion | ASTM-D2-671 | No Corrosion |
| Cold Bend | ASTM-D2-671 | No Cracking |
Technical Specification
| Item NO. | Before shrink/mm | After shrink/mm | Suitabale for rectangular busbar/mm | Suitabale for circular busbar/mm | ||
| Inner Diametre | Wall thickness | Inner Diametre | Wall thickness | |||
| φ20 | 20 | 1.2 | 8 | 2.5 | 20 | 15 |
| φ25 | 25 | 1.2 | 11 | 2.5 | 25 | 15 |
| φ30 | 30 | 1.2 | 13 | 2.5 | 30 | 20 |
| φ40 | 40 | 1.2 | 16 | 2.5 | 40 | 25 |
| φ50 | 50 | 1.3 | 18 | 2.7 | 50 | 30 |
| φ65 | 65 | 1.3 | 28 | 2.7 | 65 | 40 |
| φ75 | 75 | 1.3 | 31 | 2.7 | 75 | 50 |
| φ85 | 85 | 1.3 | 36 | 2.7 | 85 | 55 |
| φ100 | 100 | 1.3 | 42 | 2.7 | 100 | 75 |
| φ120 | 120 | 1.3 | 48 | 2.7 | 120 | 85 |
| φ150 | 150 | 1.3 | 62 | 2.7 | 150 | 105 |
| φ180 | 180 | 1.3 | 73 | 2.7 | 180 | 120 |
| φ210 | 210 | 1.3 | 84 | 2.7 | 210 | 130 |
| φ230 | 230 | 1.2 | 85 | 2.7 | 230 | 135 |
| φ250 | 250 | 1.5 | 102 | 2.7 | 250 | 140 |
| φ300 | 300 | 1.6 | 110 | 3.7 | 300 | 160 |
| φ350 | 350 | 1.2 | 142 | 3.9 | 350 | 200 |
| φ400 | 400 | 1.2 | 160 | 3.0 | 400 | 260 |
| φ450 | 450 | 1.4 | 193 | 3.2 | 450 | 300 |
| φ500 | 500 | 1.2 | 193 | 3.2 | 500 | 330 |
Product packing
Made of cross linked polyolefin
High resistance to tracking, aging and erosion
Used to offer insulation protection for busbar in switchgear and substation
Can be supplied in continuous length
Continuous operation temperature: -45℃ to 105℃
Shrink temperature: start at 110℃, and fully recovered at 130℃
Color: yellow, red, green, blue, black
Technical Specification
| Item NO. | Before shrink/mm | After shrink/mm | Suitabale for rectangular busbar/mm | Suitabale for circular busbar/mm | ||
| Inner Diametre | Wall thickness | Inner Diametre | Wall thickness | |||
| φ30 | 30 | 1.6 | 12 | 3.7 | 30 | 20 |
| φ40 | 40 | 1.6 | 16 | 3.7 | 40 | 25 |
| φ50 | 50 | 1.6 | 20 | 3.7 | 50 | 30 |
| φ60 | 60 | 1.6 | 25 | 3.7 | 60 | 40 |
| φ70 | 70 | 1.6 | 30 | 3.7 | 70 | 45 |
| φ85 | 85 | 1.5 | 32 | 3.7 | 85 | 55 |
| φ100 | 100 | 1.5 | 40 | 3.7 | 100 | 65 |
| φ120 | 120 | 1.5 | 50 | 3.7 | 120 | 80 |
| φ140 | 140 | 1.5 | 56 | 3.7 | 140 | 100 |
| φ160 | 160 | 1.5 | 64 | 3.7 | 160 | 110 |
| φ180 | 180 | 1.5 | 72 | 3.7 | 180 | 130 |
| φ200 | 200 | 1.5 | 82 | 3.7 | 200 | 140 |
| φ220 | 220 | 1.5 | 88 | 3.7 | 220 | 150 |
Product application
Features & Benefits:
1, resistance to flame and corrosion.
2, with superior insulated and chemical properties.
3, Shrink ratio: 2:1 (1 kV, 35 kV, 10 kV busbar )
4, environmental friendly, high strength, good elasticity, flame-resistant, soft.
Operation Indexes:
Min. Shrink temp.: 80℃
Final shrink temp.: ~120℃
Operating temp.: -55℃~125℃
Technical Specification
| Item NO. | Before shrink/mm | After shrink/mm | Suitabale for rectangular busbar/mm | Suitabale for circular busbar/mm | ||
| Inner Diametre | Wall thickness | Inner Diametre | Wall thickness | |||
| φ25 | 25 | 2.0 | 10 | 4.7 | 25 | 15 |
| φ30 | 30 | 2.0 | 15 | 4.7 | 30 | 20 |
| φ40 | 40 | 2.0 | 17 | 4.7 | 40 | 25 |
| φ50 | 50 | 2.0 | 20 | 4.9 | 50 | 25 |
| φ65 | 65 | 2.0 | 27 | 5.2 | 65 | 30 |
| φ75 | 75 | 2.0 | 30 | 5.2 | 75 | 35 |
| φ85 | 85 | 2.0 | 32 | 5.2 | 85 | 40 |
| φ100 | 100 | 2.0 | 39 | 5.2 | 100 | 75 |
| φ120 | 120 | 2.0 | 50 | 5.2 | 120 | 85 |
| φ150 | 150 | 2.0 | 60 | 5.2 | 150 | 105 |
| φ180 | 180 | 2.2 | 70 | 5.5 | 180 | 120 |
| φ210 | 210 | 2.1 | 82 | 5.3 | 210 | 130 |
Heat shrink tube is a tool for electrical applications wherein you can be sure of its quality especially for long-term application.
High voltage heat shrink is one of the heat shrink tube, high voltage heat shrink tubing is used for insulation protection of confuence busbar row in 10KV – 35KV transformer substation, power distribution cabinets and other occasions.
Heat shrink Insulation tube , known as copper bar protection tube, is made by cross-linked environmental protection polyolefin PE heat shrinkable materials.
The flexible material and inner lubricious coating make it easy for the operate to process bent busbar.
Dual wall heat shrink with good resistance to bending and scratching, high insulation strength and resistance to electric carbon mark.
high voltage shrink tubing applies to switchgear, substation bus, busbar, electrical equipment for anti-corrosion and insulation protection. It’s widely used in electric power industry.
The started shrinkage temperature of heat shrink wrap tubing is 80 degrees, the full shrinkage temperature is 125 degrees
During heating, the heat sink sleeve shrinks to the original smaller extruded diameter, fitting tightly busbar because of its high shrink ratio is 2:1.
Using high voltage heat shrink tube to cover busbar can reduce the space design of the switchgear and lower cost.
Heat shrink tube is uniform in thickness and soft in shape.