Heat Shrink Bus bar protection Tubing (HBBT) Provides high resistance to tracking and arching and used to enhance the insulation properties of bus bar in switchgear and substation.
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Heat Shrink Bus bar protection Tubing (HBBT) Provides high resistance to tracking and arching and used to enhance the
insulation properties of bus bar in switchgear and substation. The continuous length of supplied products makes it to be
used more conveniently and economically. Avoid short circuit fault caused by small animals such as mice, snakes and so on.
Prevent bus bar from chemical corrosion effected by strong acid, alkali, salt, etc. Avoid accidental injure, for instance, that
overhaul person enter electriferous clearance by mistakes. Be suit to the trend of smaller switch cabinets. Be applied in bus
duct for insulation among buses.
COLORS: Red, Green, Yellow, Black(Other colors available on request.
Item | Test Method | Value |
| Tensile Strength | ASTM D 2671 | ≥8Mpa |
| Elongation at break | ASTM D 2671 | ≥300% |
| Tensile Strength after aging | 130℃ x 168h | ≥6.9Mpa |
| Elongation at breakafter aging | 130℃ x 168h | ≥100% |
| Longitudinal Shrinkage | ASTM D 2671 | -8%~8% |
| Oxygen Index | GB/T 2406 | ≥27 |
| Heat Shock | JB7829 D | No Crack |
| Breakdown Strength | ASTM 3 149 | ≥20KV/mm |
| Rigidity (Shore A) | GB 2411 | ≤90 |
| Volume Resistivity | IEC 60093 | 10 14Ω . Cm |
1KV Heat Shrink Bus bar protection Tubing
SIZE (mm) | As Supplied(mm) | After Recovery(mm) | Packing (m/roll) | |
I. D. | I. D. (max) | W. T. | ||
30 | 31.5±1.0 | 15.0 | 1.0±0.15 | 50 |
35 | 36.5±1.0 | 17.5 | 1.0±0.15 | 50 |
40 | 41.5±1.0 | 20.0 | 1.0±0.15 | 50 |
50 | ≥50 | 25.0 | 1.1±0.15 | 25 |
60 | ≥60 | 30.0 | 1.2±0.15 | 25 |
70 | ≥70 | 35.0 | 1.3±0.15 | 25 |
80 | ≥80 | 40.0 | 1.3±0.20 | 25 |
90 | ≥90 | 45.0 | 1.3±0.20 | 25 |
100 | ≥100 | 50.0 | 1.3±0.20 | 25 |
120 | ≥120 | 60.0 | 1.3±0.20 | 25 |
150 | ≥150 | 75.0 | 1.3±0.20 | 25 |
180 | ≥180 | 90.0 | 1.3±0.20 | 25 |
210 | ≥210 | 105 | 1.3±0.30 | 25 |
230 | ≥230 | 115 | 1.3±0.30 | 25 |
250 | ≥250 | 125 | 1.3±0.30 | 25 |
300 | ≥300 | 150 | 1.3±0.30 | 25 |
10kv Heat Shrink Bus bar protection Tubing
SIZE (mm) | As Supplied(mm) | After Recovery(mm) | Packing (m/roll) | |
I. D. | I. D. (max) | W. T. | ||
15 | ≥15 | 6.0 | 2.5±0.20 | 25 |
20 | ≥20 | 8.0 | 2.5±0.20 | 25 |
25 | ≥25 | 10.0 | 2.5±0.20 | 25 |
30 | ≥30 | 12.0 | 2.5±0.20 | 25 |
40 | ≥40 | 16.0 | 2.8±0.30 | 25 |
50 | ≥50 | 20.0 | 2.8±0.30 | 25 |
65 | ≥65 | 26.0 | 2.8±0.30 | 25 |
75 | ≥75 | 30.0 | 2.8±0.30 | 25 |
85 | ≥85 | 34.0 | 2.8±0.30 | 25 |
100 | ≥100 | 40.0 | 2.8±0.30 | 25 |
120 | ≥120 | 48.0 | 2.8±0.30 | 25 |
150 | ≥150 | 60.0 | 2.8±0.30 | 25 |
180 | ≥180 | 72.0 | 2.8±0.30 | 25 |
210 | ≥210 | 84.0 | 2.8±0.30 | 20 |
230 | ≥230 | 92.0 | 2.8±0.30 | 20 |
250 | ≥250 | 100 | 2.8±0.30 | 20 |
300 | ≥300 | 120 | 2.8±0.30 | 15 |
35kv Heat Shrink Bus bar protection Tubing
SIZE (mm) | As Supplied(mm) | After Recovery(mm) | Packing (m/roll) | |
I. D. | I. D. (max) | W. T. | ||
30 | ≥30 | 15.0 | 4.0±0.30 | 15 |
40 | ≥40 | 20.0 | 4.0±0.30 | 15 |
50 | ≥50 | 25.0 | 4.0±0.30 | 15 |
65 | ≥65 | 33.0 | 4.0±0.30 | 15 |
75 | ≥75 | 38.0 | 4.0±0.30 | 15 |
85 | ≥85 | 43.0 | 4.0±0.30 | 15 |
100 | ≥100 | 50.0 | 4.0±0.30 | 15 |
120 | ≥120 | 60.0 | 4.0±0.30 | 15 |
150 | ≥150 | 75.0 | 4.0±0.30 | 15 |
180 | ≥180 | 90.0 | 4.0±0.30 | 15 |
210 | ≥210 | 105 | 4.0±0.30 | 15 |
230 | ≥230 | 115 | 4.0±0.30 | 15 |
250 | ≥250 | 125 | 4.0±0.30 | 15 |
300 | ≥300 | 150 | 4.0±0.30 | 15 |