IEC 60050-151:2001/AMD1:2013-Amendment 1-International Electrotechnical Vocabulary (IEV)-Part 151: Electrical and magnetic devices, IEC TR 61200-52:2013-Electrical installation guide-Part 52: Selection and erection of electrical equipment-Wiring systems, IEC 60145-Electrical apparatus for explosive gas atmospheres. Part 15: Electrical apparatus wit… Read More