Insulators

Electrical composite insulators

Strings

Strings for composite insulators

Disconnectors

Disconnectors for composite insulators

Spare Parts

Spare parts for electrical equipment

Izolator compozit tip tija zona IV H 24.80.445 TT / Composite suspension & distribution deadend insulator Maira H 24.80.445 TT


Standardele aplicabile pentru izolatori sunt urmatoarele: IEC 61109; ANSI C29.11-1989(1996); C29.12-1997(2002) si C29-13-2000.


CONDITII DE MEDIU / ENVIRONMENT CONDITIONS
Temperatura maxima/ Maximum ambient temperature + 50 °C
Temperatura minima/ Minimum ambient temperature - 55 °C
Umiditatea relativa maxima/ Maximum humidity 100 %
Altitudinea maxima/ Altitude above sea level 2500 m
Nivel radiatii solare/ Radiation of sun Puternic/ Strong
Pozitionare în instalatii/ Position of installation Exterior/ Outdoor


CARACTERISTICI TEHNICE / TECHNICAL DATA
Tensiunea nominala/ Nominal system voltage 20 KV
Tensiunea maxima/ Highest voltage of system 24 KV
Frecventa nominala/ Nominal system frequency 50/60 Hz
Tensiune de tinere la frecventa ind. în mediu uscat timp de 1 min./ Withstanding voltage with frequency power during 1 minute in dry condition (to earth & between phases) 131 KV
Tensiune de tinere la frecventa ind. în mediu umed timp de 1 min./ Withstanding voltage with frequency power during 1 minute in wet condition 85 KV
Tensiune de tinere la impuls de trasnet (pozitiva)/ Lightning impulse flashover voltage (positive) –50% 292 KV
Tensiune de tinere la impuls de trasnet (negativa)/ Lightning impulse flashover voltage (negative) –50% 303 KV
Tensiune de tinere la impuls de trasnet/ Lightning impulse withstanding voltage 280,3 KV
Stratul galvanizat pe partea metalica/ Thickness of galvanization of metal part - SR EN 10083/1 70 µm Zn
Armaturi metalice din otel/ Fittings – IEC 61466–2/2002 TT
Tipul materialului/ Kind of material Cauciuc siliconic/ Silicone rubber ( HTV)
Sarcina mecanica specifica/ Specified mechanical load 18000 lbs/80 KN
Linia de fuga/ Leakage distance – IEC 815 /1986 30,82 inch/783 mm
Sarcina maxima admisibila/ Exceptional maximum tensile strenght 22500 lbs/100 KN
Lungime/ Length - SR EN 60383/1 17,49 inch/445 mm
Greutate/ Weight 4,62 lbs/2,1 kg
Nivel de poluare/ Polluted level – IEC 815/1986 IV (3,1 cm/KV)