Electrical installations of buildings - Part 4-44: Protection for safety - Protection against voltage disturbances and electromagnetic disturbances - Clause 443: Protection against transient overvoltages of atmospheric origin or due to switching (english version)
gültig ab
2015-09-15
internat. Übereinstimmung
HD 60364-4-443/AA (2015) , ident HD 60364-4-443 (2015) , ident