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Description
Heat Shrink Bus Bar Tube GMB and GHB are red coloured medium wall and heavy wall unlined tubes designed to insulate busbar systems upto 36 KV and to protect against accidental flashover. The tubes are manufactured from high quality non tracking crosslinked poly olefin material. Meets ANSI C37.20.2 standards for MV switchgear application up to 36 KV.
- Reduces Busbar clearance.
- Prevent Busbar from chemical corrosion effected by strong acid, alkali, salt etc.
- Solve the problem of insulation among Busbar in Bus Duct.
- Helogen free, flame retardant
- High dielectric strength.
- Highly Flexible for use on straight or angled bars without creasing
| TECHNICAL SPECIFICATION |
| PROPERTIES | VALUE | STANDARD |
| Physical | ||
| Tensile Strength | 10 N/mm2 (MPA) (min.) | ASTM D638 |
| Ultimate Elongation | 300 (Min.) | ASTM D638 |
| Longitudinal Change | -10% (max.) | ASTM D2671 |
| Density | 1.20 ± 0.2 gm/cm3 | ASTM D792 |
| Hardness | 45 ± 10 Shore D | ASTM D2240 |
| Water Absorption | 0.5 % (max.) | ASTM D570 |
| Thermal | ||
| Accelerated Ageing | (120oC for 500 Hrs) | ASTM D2671 |
| Tensile Strength | 8 N/mm2 (Mpa) (min.) | ASTM D 638 |
| Ultimate Elongation | 250% (Min.) | ASTM D 638 |
| Low temperature Flexibility (-40ºC for 4 Hrs.) |
No Cracking | ASTM D2671 |
| Heat Shock (250oC for 30 Min.) | No Cracking or flowing | ESI 09-11 |
| Shrink Temperature | 125oC | IEC 216 |
| Continuous Temperature limit | -40oC to + 105oC | IEC 216 |
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Busbar Tubes