TY  - BOOK
AU  - INDIAN STANDARDS INSTITUTION
TI  - IS:04047 - 1967 (Incorporating Amendments No.1 to 5); Specification for Heavy Duty Air-Break Switches and Composite Units of Air-Break Switches and Fuses for Voltages not Exceeding 1000 Volts
PY  - 1976///
CY  - New Delhi
PB  - BIS
ER  -