IEC 60519-4:2013 provides particular safety requirements for electric arc furnace installations and its operating and maintenance personnel. These safety provisions concern the protection of persons and the environment against dangers of electrical origin and also against certain dangers of non-electrical origin. This fourth edition cancels and replaces the third edition published in 2006. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: – The structure has been amended and adjusted to IEC 60519-1:2010; – The classification (Clause 4) has been adapted to details with respect to secondary voltage in electric arc furnace installations; – All provisions have been redrafted and the text is more concise with respect to EAF; – Annexes AA, BB and CC have been restructured, with respect to details concerning high voltage designs and non-electrical issues, however to be aware of in those installations. This publication is to be read in conjunction with \/2.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 7<\/td>\n | English CONTENTS <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | 1 Scope and object 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 4 Classification of electroheating equipment 5 General requirements <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 6 Isolation and switching <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 7 Connections to the electrical supply network and internal connections 8 Protection against electric shock <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 9 Equipotential bonding 10 Control circuits and control functions 11 Protection against thermal influences 12 Protection against other hazards 13 Marking, labelling and technical documentation 14 Commissioning, inspection, operation and maintenance <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | Annex A (normative) Protection against electric shock \u2013 special measures <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | Annex AA (normative) Systems to assure improved safety for personnel working in the vicinity of electrodes and other live parts of secondary circuit Figures Figure AA.1 \u2013 Arc furnace supply with HV furnace switch (or HV furnace breaker) in open position and HV disconnector in open position Figure AA.2 \u2013 Arc furnace supply with HV furnace switch (or HV furnace breaker) in open position and HV earthing switch in closed position <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | Figure AA.3 \u2013 Arc furnace supply with buck-boost transformer or intermediate circuit transformer <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | Figure AA.4 \u2013 DC furnace supply with HV furnace switch (or HV furnace breaker) in open position and HV disconnector in open position Figure AA.5 \u2013 DC furnace supply with HV furnace switch (or HV furnace breaker) in closed position, valve firing pulses stopped and LV disconnector switch in open position <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | Annex BB (normative) Additional requirements for the safety of non-electricalcomponents of furnace installations <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | Annex CC (normative) Additional requirements for safety with respect to design of an installation <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Safety in electroheating installations – Particular requirements for arc furnace installations<\/b><\/p>\n |