COMPOSITE SUPPORT INSULATOR Maira A 7,2.4,5.144
| 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/Indoor | |
 
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| TECHNICAL DATA | ||
| Standard to be applied | IEC 61952 | |
| Nominal system voltage | 7.2 KV | |
| Highest voltage of system | 9 KV | |
| Nominal system frequency | 50 Hz | |
| Withstanding voltage with frequency power during 1 minute in dry condition
(to earth & between phases) |
50 KV | |
| Withstanding voltage with frequency power during 1 minute in wet condition | 30 KV | |
| Lightning impulse flashover voltage (positive) –50% | 70 KV | |
| Lightning impulse flashover voltage (negative) –50% | 85 KV | |
| Thickness of galvanization of metal part - SR EN 10083/1 | 70 μm Zn | |
| Fittings – IEC 61466–2/2002 | Cylindrical M10 / M16 | |
| Kind of material | Silicone rubber ( HTV) | |
| Specified mechanical load | 1012.5 lbs | |
| Creepage distance – IEC 815 /1986 | 12.62 inch | |
| Exceptional maximum tensile strenght | 1350 lbs | |
| Length - SR EN 60383/1 | 5.7 inch | |
| Weight | 1.66 LBS | |
| Polluted level – IEC 815/1986 | II (2,1 cm/KV) | |
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