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- HB2 - Busbar Insulating Heat Shrink Tubing (Withstand Voltage Up To 24kV)
HB2 - Busbar Insulating Heat Shrink Tubing (Withstand Voltage Up To 24kV)
Applications
HB2 is made of polyolefin. The flexible material make it very easy for the operator to process bent busbars. The environmental friendly polyolefin material can provide reliable insulation protection up to 24 kV, avoiding the possibility of flashovers and accidental contact. The use of HB2 to cover busbars can reduce the space design of the switchgear and lowers the cost.
Approvals / Specifications
IEC60060-1
Operating Temperature Range
- Continuous operating temperature: -45℃ ~ 105℃
- Minimum shrink temperature: 50℃
- Minimum full recovery temperature: 125˚C
Color
Standard color: red, (Busbar width will vary depending on the design of the manufacturer. The recommended size is for reference only.)
Characteristics
- Shrink ratio: 2.5:1
- Flexibility and corrosion resistance
- Excellent chemical resistance and insulation performance
Technical Data
| Property | Specification Requirement |
Test Method | Typical Value |
|---|---|---|---|
| Tensile strength | ≥10.3Mpa | ASTM D2671 | ≥11Mpa |
| Elongation at break | ≥200% | ASTM D2671 | ≥400% |
| Elongation at break after aging | ≥100% | ASTM D2671 (136˚C/168hrs) |
≥300% |
| Heat shock | No cracking | ASTM D2671 (200˚C/4 hrs) |
No cracking |
| Low temperature flexibility | No cracking | ASTM D2671 (-40˚C/4hrs) |
No cracking |
| Dielectric strength | ≥19.7kV/mm | ASTM D2671 | ≥20kV/mm |
| Volume resistivity | ≥1012Ω‧cm | ASTM D2671 | ≥1012Ω‧cm |
| Copper corrosion | No corrosion | ASTM D2671 (158˚C/168hrs) |
No corrosion |
| Flammability | No combustion | ANSI IEEE C37.2 | Pass |
| Dielectric constant value | - | IEC 60250 | 5 (max) |
Specification
| Part number | Nominal Size (mm) |
Busbar dimension | As supplied (mm) |
After recovered (mm) |
Applicable busbar dimension (mm) |
Standard Length (Meter) |
||
|---|---|---|---|---|---|---|---|---|
| I.D. (D) |
I.D(max) (d) |
W.T. (w) |
(min)(max) (L+T) |
(min)(max) (R) |
||||
| HB2-020 | 20 | 20x3 | 20±0.8 | 10 | 2.5±0.5 | 13~28 | 11~18 | 25 |
| HB2-030 | 30 | 30x3 30x4 | 30±0.8 | 13 | 2.5±0.5 | 22~38 | 13.5~25 | 25 |
| HB2-040 | 40 | 30x10 40x4 | 40±1 | 16 | 2.5±0.5 | 25~40 | 17~37 | 25 |
| HB2-050 | 50 | 40x10 50x5 50x6 |
50±2 | 20 | 2.5±0.5 | 36~65 | 22~43 | 20 |
| HB2-065 | 65 | 50x8 50x10 60x6 60x8 |
65±3 | 27 | 3.0±0.5 | 39~70 | 27~56 | 20 |
| HB2-080 | 80 | 60x10 80x10 | 80±3 | 35 | 3.0±0.5 | 55~95 | 33~70 | 20 |
| HB2-100 | 100 | 100x8 100x10 100x12 |
100±4 | 40 | 3.0±0.5 | 70~130 | 44~86 | 20 |
| HB2-120 | 120 | 100x15 120x10 120x12 120x15 |
120±4 | 50 | 3.0±0.5 | 90~165 | 55~105 | 20 |
| HB2-150 | 150 | 150x12 150x15 | 150±4 | 60 | 3.0±0.5 | 95~180 | 70~135 | 20 |
| HB2-180 | 180 | 150x10 150x20 | 180±5 | 75 | 3.0±0.5 | 125~235 | 80~150 | 20 |
| HB2-210 | 210 | 150x20 | 210±5 | 75 | 4.0±0.5 | 200~275 | 120~190 | 1.22 |
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