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HD-7 Series 1kV Bus Bar Heat Shrinkable Tube
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Principle of thermal shrinkage
Under the high energy radiation, the
linear polymer can form network cross-linked structure. The
mechanical strength, temperature, chemical solution and ageing
resistance of cross0linked polymer are greatly improved, especially
the acid and alkali resistance.
Safety Standard
UL224 VW-1 C-UL CSA C 22.2 OFT
Color
Black, red, blue, white, yellow, green and transparent. And
other colors are subject to the clients' needs. |
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Test item |
Condition |
Result |
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Tensile strength |
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≥12Mpa |
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Elongation at break |
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≥400% |
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Tensile strength after ageing |
7 days after laying in158℃ oven |
≥10Mpa |
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Elongation at break after ageing |
≥300% |
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Thermal distortion test |
131℃ 1hour |
≤25% |
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Thermal shock test |
250℃ 4hour |
Non-fracture |
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Flexibility test |
7 days after laying in158℃ oven |
Non-fracture, no permanent distortion |
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Copper corrosion test |
7 days after laying in158℃ oven |
No corrosion |
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Volume resistively coefficient |
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≥1014 Ω.cm |
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Insulation test |
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≥2.5kV Non-breakdown 60s |
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Power-frequency voltage resistance |
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≥12kV |
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Breakdown strength |
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≥25kV/mm |
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Insulation test after ageing |
7 days after laying in158℃ oven |
≥2.5kV Non-breakdown 60s |
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Power-frequency voltage resistance
after ageing |
-30℃ 1hour |
≥12kV |
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Bending test at low temperature |
3min shrink in 200℃ oven |
Non-breakdown |
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Longitudinal shrinking ratio |
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±10% |
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Eccentricity |
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≤30% |
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Flame retardation |
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VW-1 |
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Full shrinking temperature |
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100℃ (3min) |
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1kV MPG Application
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Model |
(mm)
Applic-ation
busbar width |
Dimension before shrinking |
Dimension after shrinking |
Standard
packing (m/disc) |
Application (mm) |
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Internal |
Wall thickness |
Internal |
Wall thickness |
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1kV MPG 30 |
20~30 |
30.8±0.8 |
0.45±0.15 |
14.1±0.1 |
0.75±0.20 |
50 |
16~29 |
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1kV MPG 35 |
30~40 |
35.8±0.5 |
0.50±0.15 |
16.0±0.1 |
0.85±0.20 |
50 |
18~34 |
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1kV MPG 40 |
40~50 |
42.0±1.0 |
0.50±0.15 |
19.0±0.1 |
0.85±0.20 |
25 |
21~39 |
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1kV MPG 50 |
50~60 |
51.0±1.0 |
0.50±0.15 |
24.0±0.1 |
0.85±0.20 |
25 |
26~49 |
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1kV MPG 60 |
60~70 |
61.0±1.0 |
0.65±0.15 |
29.0±0.1 |
0.85±0.20 |
25 |
35~55 |
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1kV MPG 70 |
80~90 |
71.0±1.0 |
0.65±0.15 |
33.0±0.2 |
1.0±0.20 |
25 |
40~65 |
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1kV MPG 80 |
90~100 |
81.0±1.0 |
0.65±0.20 |
37.0±0.2 |
1.0±0.20 |
25 |
45~75 |
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1kV MPG 90 |
120 |
91.0±1.0 |
0.65±0.20 |
43.0±0.2 |
1.0±0.20 |
25 |
50~88 |
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1kV MPG 100 |
140 |
102.0±2.0 |
0.65±0.20 |
48.0±0.2 |
1.0±0.20 |
25 |
55~95 |
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1kV MPG 120 |
180 |
122.0±2.0 |
0.80±0.20 |
58.0±0.2 |
1.50±0.20 |
15 |
65~115 |
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1kV MPG 150 |
240 |
152.0±2.0 |
0.80±0.20 |
73.0±0.2 |
1.50±0.20 |
15 |
80~145 |
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Key Words
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