Heat Shrinkable Bus Bar Tube is specially made from crosslinked polyolefin that will shrink to fit any rectangular, square or round aluminum/copper bus bars. On applying heat the tubing shrinks neatly over the bus bar ensuring that the minimum thickness is obtained. It is widely used in confined places where spaces are scarce.
| Code | As Supplied | After Recovered | App. bus-bar | Standard length | |
|---|---|---|---|---|---|
| (max.) | (max.) | (min.) | dim. (mm.) | (m/spool) | |
| DBT - 30/12 | 30 | 12 | 3.0 | 35*4 | 20 |
| DBT - 40/16 | 40 | 16 | 3.0 | 40*5 | 20 |
| DBT - 50/20 | 50 | 20 | 3.0 | 50*5 | 20 |
| DBT - 65/25 | 65 | 25 | 3.0 | 65*8 | 20 |
| DBT - 75/30 | 75 | 30 | 3.0 | 75*8 | 20 |
| DBT - 85/35 | 85 | 35 | 3.0 | 85*10 | 20 |
| DBT - 100/40 | 100 | 40 | 3.0 | 100*10 | 20 |
| Property | Requirements | Test Method |
|---|---|---|
| Tensile strength | ≥ 13.5 MPa | ASTM D 2671 |
| Tensile strength after aging (120° C/168 Hrs) | ≥ 10 MPa | ASTM D 2671 |
| Longitudinal shrinkage | 0 to -10% | ASTM D 2671 |
| Elongation at break | ≥ 400% | ASTM D 2671 |
| Elongation at break after aging (120° C/168 Hrs) | ≥ 250% | ASTM D 2671 |
| Dielectric Strength | ≥ 20KV/mm | IEC 243 |
| Dielectric constant | 4.0 | IEC 250 |
| Volume resistance | 1013 Ohm cm min. | IEC 93 |
| Flammability (oxygen index) | ≥ 25 | ASTM 4589 |
| Copper corrosion (120°C/168Hrs) | No corrosion | ASTM D 2671 |
| Cold bend (-40° C/4 Hrs) | No corrosion | ASTM D 2671 |
| Water absorption (23° C/14 days) | <0.5% | ISO 62 |
