COMPOSITE SUPPORT INSULATOR Maira P 24.07.293
| ENVIRONMENT CONDITIONS | ||
| Maximum ambient temperature | + 50 °C | |
| Minimum ambient temperature | – 55 °C | |
| Maximum humidity | 100 % | |
| Altitude above sea level | 2500 m | |
| Radiation of sun | Strong | |
| Position of installation | Outdoor | |
 
|
||
| TECHNICAL DATA | ||
| Nominal system voltage | 20 KV | |
| Highest voltage of system | 24 KV | |
| Nominal system frequency | 50/60 Hz | |
| Withstanding voltage with frequency power during 1 minute in dry condition
(to earth & between phases) |
90 KV | |
| Withstanding voltage with frequency power during 1 minute in wet condition | 70 KV | |
| Lightning impulse flashover voltage (positive) –50% | 189 KV | |
| Lightning impulse flashover voltage (negative) –50% | 240 KV | |
| Thickness of galvanization of metal part - SR EN 10083/1 | 70 μm Zn | |
| Fittings – IEC 61466–2/2002 | Spherical | |
| Kind of material | Silicone rubber ( HTV) | |
| Specified mechanical load | 1575 lbs | |
| Creepage distance – IEC 815 /1986 | 21 inch | |
| Exceptional maximum tensile strenght | 1755 lbs | |
| Length - SR EN 60383/1 | 11.5 inch | |
| Weight | 4.2 kg | |
| Polluted level – IEC 815/1986 | II (2,1 cm/KV) | |
|
Usable standards as follows: IEC 61952; ANSI C 29.17 – 2002; -ANSI C 29.18 – 2003 |
||
