I.E.C. <br/><br/>
IEC: 60840, Ed.2-1999; Power cables with extruded insulation and their accessories for rated voltages above 30 kv (Um=36kv) up to 150kv (Um= 170kv)- Test methods and requirements. 

 - 2nd 
 - Geneva  IEC  1999 
 - 69 
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