COMPOSITE SUSPENSION & DISTRIBUTION DEADEND INSULATOR Maira H 24.80.415 S
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) |
127 KV | |
Withstanding voltage with frequency power during 1 minute in wet condition | 83 KV | |
Salt fog test Up = 18 kV | 220 kg/mc | |
Lightning impulse flashover voltage (positive) –50% | 230 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 | TT | |
Kind of material | Silicone rubber ( HTV) | |
Specified mechanical load | 18000 lbs | |
Creepage distance – IEC 815 /1986 | 30.83 inch | |
Exceptional maximum tensile strenght | 22500 lbs | |
Length - SR EN 60383/1 | 16.34 inch | |
Weight | 4.62 lbs | |
Polluted level – IEC 815/1986 | IV (3.75 cm/KV) | |
Usable standards as follows: IEC 61109; ANSI C29.11-1989(1996); C29.12-1997(2002) & C29-13-2000. |