International Electrotechnical Commission <br/><br/>
IEC: 60243-1-1998; Electrical strength of insulating materials - test methods Part 1 - tests at power frequencies 

 - 2 
 - Geneva  IEC  1998 
 - 47 
<br/><br/><label>ISBN: </label>2-8318-4120-8 
<br/><br/><label>Universal Decimal Class. No.: </label> /