Changzhou Longchuang Insulating Material Co., Ltd.
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20mm 28mm 33mm 40mm Medium Voltage Cross Linked Polyolefin Bus BarTubing
is made from specially formulated radiation cross-linked halogen free compounds. It can provide high resistance to tracking and arcing, as well as to enhance the insulation properties of bus-bar in switchgear and substation. Suitable for application in insulating medium voltage bus bars, cable termination and joints from 1KV to 24KV.
Features
• Flame Retardant
• Reduces bus bar clearance requirements
• Protect against accidental flashover
• Anti-track
• Halogen free
• Tested to IEC60684 standards for medium voltage switch-gear applications to above 20KV
• Continuous Operating Temperature:
-40 °C to 110°C, can be used in 175°C
• Shrink Temperature: 120°C
Technical Data
Physical
| Property | Test Method | Standard Performance | Typical Performance |
| Tensile strength | IEC 60684 | N8Mpa | 10.5Mpa |
| Elongation | IEC 60684 | >400% | 550% |
| HeatAging tensile strength | 150°Cx168h | N5Mpa | 9.5 Mpa |
| HeatAging elongation | 150°Cx168h | "200% | 450% |
| Heat shock | 225oC*4h | no cracking or flowing | no cracking or flowing |
| Flammability | IEC 60684 | Passed | Passed |
| Low temperature Flexibility | -40°Cx4h | no cracking | no cracking |
Electrical
| Property | Test Method | Standard Performance | Typical Performance |
| Dielectric Strength | IEC 60684 | >20KV/mm | 23kv/mm |
| Volume Resistivity | IEC 60684 | >1xio13Q«cm | 2xlO14Q-cm |
| Tracking(2,5kv,60min) | IEC 60684 | no cracking | no cracking |
Selection Table
| Normal size (mm) | As supplied/mm | After recovered/mm | Standard length m/Roll | |
| Inside diameter (Min) | Inside diameter(Max) | Wall thickness (Min) | ||
| 020/6 | 20 | 6 | 2.2±0.3 | 25 |
| 028/9 | 28 | 9 | 2.6±0.3 | 25 |
| 033/10 | 33 | 10 | 2.8±0.3 | 25 |
| 040/12 | 40 | 12 | 2.8±0.3 | 25 |
| 045/14 | 45 | 14 | 3.0±0.3 | 25 |
| <D55/16 | 55 | 16 | 3.0±0.3 | 25 |
| 065/19 | 65 | 19 | 3.0±0.3 | 25 |
| 075/22 | 75 | 22 | 3.0±0.3 | 25 |
| 085/25 | 85 | 25 | 3.2±0.3 | 25 |
| 095/30 | 95 | 30 | 3.2±0.3 | 25 |
| 0115/34 | 115 | 34 | 3.3±0.3 | 25 |
| 0130/36 | 130 | 36 | 3.3+0.3 | 25 |
| <D160/50 | 160 | 50 | 3.3±0.3 | 25 |
| 0180/56 | 180 | 56 | 3.3±0.3 | 25 |
