HD-7 Series 10kV & 35kV Thermal Shrinkable Busbar Protective Bushing
Major performance indexes of MPG series thermal shrinkable busbar protective bushing
|
Item |
Index |
|
Hardness (Shore A ) |
＜80 |
|
Density (kg/m3) |
1.15x103 |
|
Water-absorbing rate (%) |
＜0.5 |
|
Full shrinking temperature (℃) |
130±5 |
|
Radial shrinking ratio (%) |
＞50 |
|
Axial shrinking ratio (%) |
＜10 |
|
Tensile strength(Mpa) |
＞12 |
|
Crack elongation (%) |
＞400 |
|
Breakdown strength (kV/mm) |
≥25 |
|
Volume resistivity(Ω.cm) |
＞1x1014 |
|
Cxygen index |
≥30 |
|
Eccentricity (%) |
30 |
Comparison between earth and phase distance before and after the use of MPG series
|
System voltage |
Ordinary insulation |
Insulation distance after using PG10 series |
Insulation distance after using PG10 series |
||
|
To the earth (mm) |
Between phase (mm) |
To the earth (mm) |
Between phase (mm) |
||
|
10 |
120 |
80 |
70 |
50 |
40 |
|
22 |
220 |
160 |
120 |
105 |
75 |
|
35 |
320 |
- |
- |
200 |
150 |
Note：Information in the above table is for reference only. The actual data may vary due to the power distribution system and environment.
Application of 10kV MPG
|
Specification |
Applicable busbar |
Dimension before shrinking(mm) |
Dimension after shrinking (mm) |
||
|
Internal diameter |
Wall thickness |
Internal diameter |
Wall thickness |
||
|
10kV MPG15 |
10～15 |
15±1 |
0.8±0.2 |
6 |
1.6±0.2 |
|
10kV MPG20 |
12～18 |
20±1 |
0.8±0.2 |
8 |
1.6±0.2 |
|
10kV MPG25 |
20～30 |
25±1 |
1.0±0.2 |
10 |
2.0±0.2 |
|
10kV MPG30 |
30～40 |
30±1 |
1.0±0.2 |
13 |
2.0±0.2 |
|
10kV MPG40 |
40～50 |
40±1 |
1.0±0.2 |
15 |
2.2±0.2 |
|
10kV MPG50 |
50～60 |
50±2 |
1.2±0.2 |
20 |
2.2±0.2 |
|
10kV MPG60/65 |
60～70 |
65±2 |
1.2±0.2 |
24 |
2.5±0.2 |
|
10kV MPG80 |
80～100 |
80±3 |
1.2±0.3 |
32 |
2.5±0.2 |
|
10kV MPG100 |
100～120 |
100±4 |
1.2±0.3 |
40 |
2.5±0.2 |
|
10kV MPG120 |
150 |
120±4 |
1.2±0.3 |
48 |
2.7±0.3 |
|
10kV MPG150 |
200 |
150±4 |
1.2±0.3 |
60 |
2.7±0.3 |
|
10kV MPG180 |
max |
180±5 |
1.2±0.3 |
70 |
2.7±0.3 |
|
10kV MPG210 |
max |
210±5 |
1.2±0.3 |
80 |
2.7±0.3 |
Application of 35kV MPG
|
Specification |
Applicable busbar |
Dimension before shrinking(mm) |
Dimension after shrinking (mm) |
||
|
Internal diameter |
Wall thickness |
Internal diameter |
Wall thickness |
||
|
35kV MPG30 |
30～40 |
30±2 |
2.0±0.3 |
13 |
3.5±0.3 |
|
35kV MPG40 |
40～50 |
40±2 |
2.0±0.3 |
15 |
3.5±0.3 |
|
35kV MPG50 |
50～60 |
50±2 |
2.0±0.3 |
20 |
4.0±0.3 |
|
35kV MPG60/65 |
60～70 |
65±2 |
2.0±0.3 |
24 |
4.0±0.3 |
|
35kV MPG80 |
80～100 |
80±3 |
2.2±0.3 |
32 |
4.0±0.3 |
|
35kV MPG100 |
100～120 |
100±4 |
2.5±0.3 |
40 |
4.0±0.3 |
|
35kV MPG120 |
150 |
120±4 |
2.5±0.3 |
48 |
4.5±0.3 |
|
35kV MPG150 |
200 |
150±4 |
2.5±0.3 |
60 |
4.5±0.3 |
|
35kV MPG180 |
max |
180±5 |
2.5±0.3 |
70 |
4.5±0.3 |
|
35kV MPG210 |
max |
210±5 |
2.5±0.3 |
80 |
4.5±0.3 |
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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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