Specification for porcelain bushings for alternating voltages up to and including 1000 V (first revision) (first reprint December 1997) 

 - New Delhi  Buraeu of Indian standards, New Delhi  1988 
 - 8p. ; 30 cm. 
<br/><br/> Indian Standard No. : IS 7421 
<br/><br/><label>Subjects--Index Terms: </label>IS 7421