57 2 Power Transmission Line Post Ceramic Insulators with Long Stud

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Product Overview

Description





 57-2 Power Transmission Line Post Ceramic Insulators with Long Stud

































































































ANSI Class



57-1




57-2




57-3




57-4




57-5



Creepage distance,mm



356




559




737




1015




1145



Dry arching distance



165




241




311




368




438



Cantilever Strength,Kn



12.5




12.5




12.5




12.5




12.5



Lower Frequency
Flashover Voltage


Dry,kv



80




110




125




150




175



Wet,kv



60




85




100




125




150



Critical Impulse
Flashover Voltage


Pos.,kv



130




180




210




255




290



Neg.,kv



155




205




260




340




380



RIV Data


Test volt. To ground,kv



15




22




30




44




44



Max RIV at 1000 KHz,Uv



100




100




200




200




200



 


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