IEC 60364-4-443/AMD1:1998 Electrical installations of buildings - Part 4: Protection for safety - Chapter 44: Protection against overvoltages - Section 443: Protection against overvoltages of atmospheric origin or due to switching; Amendment 1
1999IEC 60364-4-443:1999 Electrical installations of buildings - Part 4: Protection for safety - Chapter 44: Protection against overvoltages - Section 443: Protection against overvoltages of atmospheric origin or due to switching
1998IEC 60364-4-443/AMD1:1998 Electrical installations of buildings - Part 4: Protection for safety - Chapter 44: Protection against overvoltages - Section 443: Protection against overvoltages of atmospheric origin or due to switching; Amendment 1
1995IEC 60364-4-443:1995 Electrical installations of buildings - Part 4: Protection for safety - Chapter 44: Protection against overvoltages - Section 443: Protection against overvoltages of atmospheric origin or due to switching
1990IEC 60364-4-443:1990 Electrical installations of buidlings; part 4: protection for safety; chapter 44: protection against overvoltages; section 443; protection against overvoltages of atmospheric origin or due to switching