International Electrotechnical Commission <br/><br/>
IEC: 62271- 108(Ed-1) - 2005; High- voltage switchgear and controlgear- part 108: High- voltage alternating current disconnecting circuit - breakers for rated voltages of 72.5 kV and above 

 - 1 
 - Geneva  IEC  2005 
 - 47 
<br/><br/><label>ISBN: </label>2-8318-8297-4 
<br/><br/><label>Universal Decimal Class. No.: </label> /