IEC <br/><br/>
IEC: 62053-61-1998-02:Electricity Metering Equipment (a.c)-Particular requirements 

 - 1 
 - Geneva  IEC  1998 
 - 9 
<br/><br/><label>ISBN: </label>2-8318-4264-6 
<br/><br/><label>Universal Decimal Class. No.: </label> /