IEC 60601-1:2005/AMD2:2020-Amendment 2-Medical electrical equipment-Part 1: General requirements for basic safety and essential performance, IEC 60092-502:1999-Electrical installations in ships-Part 502: Tankers-Special features, IEC 61508-3:2010-Functional safety of electrical/electronic/programmable electronic safety-related systems-Part 3: Softw