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22kV long rod insulator

The 22kV long rod insulator housing is a one-piece HTV silicone rubber housing made by the one-shot injection molding process. The HTV silicone is directly molded onto the core rod by overlapping the triple junction point and part of the metal end fittings.

The design for 22kV long rod insulator ensures a total enclosure of the most sensitive part of a silicone insulator – the junction zone (metal end fitting/FRP rod/silicone housing), where usually the highest electrical field strength is concentrated.

22kV long rod insulator

22kV long rod insulator main technical parameters:

One minute power frequency withstand voltage, 50Hz, wet kV 110
Lightning impulse withstand voltage, 1, 2/50, pos. kV 240
Arcing distance mm 310
Minimum creepage distance mm 765
Specified mechanical load (SML) kN 70
Routine test load (RTL) kN 55
Number of sheds   8
Weight (approx.) kg 1.3
Clevis in accordance with IEC60471
Tongue in accordance with IEC60471
SML and RTL in accordance with IEC 61109
Insulator FRP fiberglass with HTV silicone rubber housing
End fitting Steel cast or machined – hot dip galv. Acc. To EN ISO 1461
Cotter pin Stainless steel

22kV long rod insulator

22kV long rod insulator (ball and socket) main technical parameters:

One minute power frequency withstand voltage, 50Hz, wet kV 60
Lightning impulse withstand voltage, 1, 2/50, pos. kV 165
Arcing distance mm 225
Minimum creepage distance mm 560
Specified mechanical load (SML) kN 70
Routine test load (RTL) kN 55
Number of sheds   6
Weight (approx.) kg 1.27
Clevis in accordance with IEC60471
Tongue in accordance with IEC60471
SML and RTL in accordance with IEC 61109
Insulator FRP fiberglass with HTV silicone rubber housing
End fitting Steel cast or machined – hot dip galv. Acc. To EN ISO 1461
Cotter pin Stainless steel

 

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Composite long rod insulator,high voltage composite long rod insulator

 

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