HOME > Products > Epoxy cast resin electric device > Epoxy resin insulator > 20-30kV Post insulator
 |
| Type |
EM-20
(EG40390）
Outline
drawing |
EM-20N
(EG40433）
Outline
drawing |
EL-20
(EG40260）
Outline
drawing |
|
EM-30
(EG40459)
Outline
drawing |
EM-30N
(EG40488)
Outline
drawing |
EL-30
(EG40273）
Outline
drawing |
| Test item |
Unit |
| Value |
Nominal voltage |
kV |
22 |
22 |
22 |
33 |
33 |
33 |
| Power-frequency withstand voltage |
kV |
50 |
50 |
50 |
70 |
70 |
70 |
| Impulse withstand voltage |
kV |
125 |
125 |
125 |
170 |
170 |
170 |
| Power-frequency flashover voltage※ |
kV |
110 |
115 |
115 |
140 |
145 |
150 |
| 50％ impulse voltage※ |
kV |
160 |
170 |
160 |
240 |
240 |
210 |
Bending strength
(RT / 1min.) |
N |
5880 |
5880 |
8820 |
5880 |
5880 |
8820 |
| Tensile failing load※ |
N |
19600< |
19600< |
19600< |
19600< |
19600< |
19600< |
| Torsional failing load ※ |
N-m |
490< |
490< |
490< |
490< |
490< |
490< |
| Creepage distance |
mm |
305 |
320 |
315 |
482 |
524 |
515 |
| Installed height |
mm |
190 |
210 |
210 |
280 |
310 |
310 |
| Max.diameter |
mmΦ |
90 |
90 |
105 |
100 |
100 |
115 |
| Mass |
g |
2.4 |
2.6 |
3.2 |
3.8 |
4.1 |
4.7 |
|
| |
- The load was applied from +50mm point to the specimen with tightening all the screws of the bottom mounting in order to measure bending strength.
- Creepage distance shows the length from the upper end to the bottom end along the fin surface.
- ※=reference value
- The above items are designed to be installed in general power switchboards and not fit to be exposed to insulation gas.
|
| |
