Fuel cell technologies - Part 4-101: Fuel cell power systems for propulsion other than road vehicles and auxiliary power units (APU) - Safety of electrically powered industrial trucks (IEC 62282-4-101:2014) (english version)
Devices for the connection of luminaires for household and similar purposes -- Part 1: General requirements (IEC 61995-1:2005, modified + A1:2016) (english version)