Safety in installations for electroheating and electromagnetic processing - Part 4: Particular requirements for arc furnace installations (IEC 60519-4:2021); German version EN IEC 60519-4:2022
电热和电磁处理装置的安全.第4部分:电弧炉装置的特殊要求(IEC 60519-4-2021);德语版本EN IEC 60519-4:2022