Specification for control transformers for swithchgear and controlgear for voltages not exceeding 1000 V ac ( second reprint May 2009 including amendment no. 1 and 2 )
Specification for control transformers for swithchgear and controlgear for voltages not exceeding 1000 V ac ( second reprint May 2009 including amendment no. 1 and 2 )
- New Delhi Buraeu of Indian standards, New Delhi 1987
- 22p. ; 20 cm.
Indian Standard No. : IS 12021
IS 12021
Indian Standard No. : IS 12021
IS 12021