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GM-DI Inner semiconducting and outer insulating heat shrinkable tube for tube bus
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| Introduction | ||||
| Semi-rigid polyolefin material, inner layer of semi-conductive heat shrinkable material, outer layer of insulating heat shrinkable material, double-layer composite heat shrinkable tube. It is suitable for tubular busbars, used in conjunction with semi-conductive heat-shrinkable tubes and insulating outer sheaths. The design of withdrawing screens on the tubular busbars can effectively distribute electrical stress and reduce partial discharge. Applied to voltage levels of 1~36kV, in two application scenarios of 10kV and 35kV, 3-layer and 7-layer GM-DI tube bus with internal semiconducting and external insulation heat shrinkable tube are usually used respectively, which can meet the requirements of tube bus insulation design . | ||||
| Features | ||||
| Operating temperature: -40~105 ℃ | ||||
| Voltage level: 1~36kV | ||||
| Halogen-free and environmentally friendly, RoHS compliant | ||||
| Minimum full shrinkage temperature: 135 ℃ | ||||
| Shrink ratio: 2:1 | ||||
| Standard color: red (outer layer) / black (inner layer) |
| Technical Data | ||||
| Property | Test method | Values | ||
| Outer layer (red insulating layer) | ||||
| Tensile Strength | ASTM D2671 | ≥14 MPa | ||
| Breakdown elongation | ASTM D2671 | ≥400% | ||
| Aging (136℃/168h) Tensile Strength Breakdown elongation |
ASTM D2671 | ≥10.8 MPa ≥300% |
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| Water absorption (23℃/24h) | ASTM D570 | ≤0.5% | ||
| Low temperature flexibility (-40℃/4h) | ASTM D2671 | No cracks | ||
| Heat shock(200℃/4h) | ASTM D2671 | No drips, no flow, no cracks | ||
| Dielectric strength | ASTM D2671 | ≥16 kV/mm | ||
| Volume resistivity | ASTM D2671 | ≥1.0×1013 Ω·cm | ||
| Inner layer (black semiconducting layer) | ||||
| Tensile Strength | ASTM D2671 | ≥12 MPa | ||
| Breakdown elongation | ASTM D2671 | ≥300% | ||
| Aging (136℃/168h) Tensile Strength Breakdown elongation |
ASTM D2671 | ≥9.0 MPa ≥220% |
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| Water absorption (23℃/24h) | ASTM D570 | ≤0.5% | ||
| Low temperature flexibility (-40℃/4h) | ASTM D2671 | No cracks | ||
| Heat shock(200℃/4h) | ASTM D2671 | No drips, no flow, no cracks | ||
| Volume resistivity | ASTM D2671 | ≤5×103 Ω·cm |
| Dimesion | ||||
| Size | As supplied(mm) | After shrink (mm) | Standard length | |
| GM-01 | Inner diameter（Min.） | Inner diameter（Max.） | Wall thickness（common） | m/roll |
| 100 | 100 | 55 | 2.3 | 6~24 |
| 120 | 120 | 65 | 2.3 | 6~24 |
| 130 | 130 | 70 | 2.3 | 6~24 |
| 140 | 140 | 75 | 2.3 | 6~24 |
| 150 | 150 | 80 | 2.3 | 6~24 |
| 180 | 180 | 85 | 2.3 | 6~24 |
| 200 | 200 | 90 | 2.3 | 6~24 |
Keyword:
GM-DI Inner semiconducting and outer insulating heat shrinkable tube for tube bus
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About
Contact
Address: Tangjia Industrial Park, Shihe Street, Puwan New District, Dalian
Tel： 0411-87166661 87166662 0411-87166663 87166665
International line： +86-411-87166669
E-mail： upolymer@upolymer.com
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