
Electrical installations of buildings Part 4: Protection for safety - Chapter 41: Protection against electric shock
出版:International Electrotechnical Committee

專家解讀視頻
Describes protective measures intended to ensure the safety of persons from electric shock both in normal service and in case of fault. Also includes particular requirements applicable to TN, TT and IT system earthing. Note: For voltage bands for electrical installations of buildings, see IEC 60449. A basic safety publication in accordance with IEC Guide 104.