International Electrotechnical Commission <br/><br/>
IEC 61238 1-3: 2018; Pwer Cables:Test methods and requirements for compression and mechanical connectors for power cables for rated voltages above 1 kV (Um = 1,2 kV) up to 30 kV (Um = 36 kV) tested on non-insulated conductors 

 - Ed.1.0 
 -  IEC  2018