HD-7 Series 1 kV Thermal Shrinkable Busbar Protective Bushing
Principle of thermal shrinkage
Under the high energy radiation the linear polymer can form network cross-linkde structure.The mechanical strength,temperature,chemical solution and ageing resistance of cross-linked polymer are greatly improved, especially the acid and alkali resistance.
Safety standard：
UL224VW-1 C-UL CSA C22.20FT
Color
Black,red,blue,white,yellow,green and transparent. And other colors are subject to the clients’needs.
Major performance indexes
|
Test item |
Measurement methods |
Result |
|
Tensile strength |
|
≥12Mpa |
|
Elongation at break |
≥400% |
|
|
Tensile strength after ageing |
7days after laying in 158℃ oven |
≥10Mpa |
|
Elongation at break after ageing |
≥300% |
|
|
Thermal distortion test |
131℃ ,1hour |
≤25% |
|
Thermal shock test |
250℃ ,4hour |
Non-fracture |
|
Flexibility test |
7days ,158℃ oven |
Non-fracture ,no permanent distortion |
|
Copper corrosion test |
7days ,158℃ oven |
No corrosion |
|
Volume resistivity coefficient |
|
≥1014Ω.cm |
|
Insulation test |
≥2.5KV Non-breakdown ,60 seconds |
|
|
Power-frequency voltage resistance |
≥12KV |
|
|
Breakdown strength |
≥25KV/mm |
|
|
Insulation test after ageing |
7days after laying in 158℃ oven |
≥2.5KV Non-breakdown ,60 seconds |
|
Power-frequency voltage resistance after ageing |
≥12KV |
|
|
Bending test at low temperature |
-30℃ ,1hour |
Non-fracture |
|
Longitudinal shrinking ratio |
200℃,3min shrink in oven |
±10% |
|
Eccentricity |
|
≤30% |
|
Flame retardation |
VW-1 |
|
|
Full shrinking temperature |
100℃(3min) |
1KV MPG application
|
Specification |
Applicable busbar width (mm) |
Dimension before shrinking(mm) |
Dimension after shrinking (mm) |
Standard packaging |
Application |
||
|
Internal diameter |
Wall thickness |
Internal diameter |
Wall thickness |
||||
|
1KV MPG 30 |
20～30 |
30.2±0.8 |
0.45±0.15 |
14.7±1.0 |
0.9±0.2 |
50 |
16～29 |
|
1KV MPG 35 |
30～40 |
35.2±0.8 |
0.50±0.15 |
17.3±1.0 |
1.0±0.2 |
50 |
18～34 |
|
1KV MPG 40 |
40～50 |
40.0±1.0 |
0.50±0.15 |
19.8±1.0 |
1.0±0.2 |
50 |
21～39 |
|
1KV MPG 50 |
50～60 |
50.0±1.0 |
0.50±0.15 |
24.8±1.0 |
1.0±0.2 |
50 |
26～49 |
|
1KV MPG 60 |
60～70 |
60.0±1.0 |
0.65±0.15 |
29.8±1.0 |
1.1±0.2 |
25 |
35～55 |
|
1KV MPG 70 |
80～90 |
70.0±1.0 |
0.65±0.15 |
34.0±2.0 |
1.1±0.2 |
25 |
40～65 |
|
1KV MPG 80 |
90～100 |
80.0±1.0 |
0.65±0.20 |
39.0±2.0 |
1.2±0.2 |
25 |
45～75 |
|
1KV MPG 90 |
120 |
90.0±1.0 |
0.65±0.20 |
44.0±2.0 |
1.2±0.2 |
25 |
50～88 |
|
1KV MPG 100 |
140 |
100.0±2.0 |
0.65±0.20 |
49.0±2.0 |
1.3±0.2 |
25 |
55～95 |
|
1KV MPG 120 |
180 |
120.0±2.0 |
0.80±0.20 |
59.0±2.0 |
1.4±0.2 |
25 |
65～115 |
|
1KV MPG 150 |
240 |
150.0±2.0 |
0.80±0.20 |
74.0±2.0 |
1.4±0.2 |
25 |
80～145 |
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HD JYM 12kV-630A Insulated Protective Cap
12kV 630A insulation protective cap is charged as accessories to provide an insulating sleeve jacket to live,not live to provide joint dust, moisture envelope. 630A insulating cap can be mounted on the sleeve 630A,bus bar and wall and otherequipment,when the bus bars and cable connector is reserved for spare qualify,you must use 630A insulating cap to sea it.
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