Normativa ISO UNE gratis

Fecha de publicación: 14/01/2021 Technical specification for flame detector system of boiler IEC PAS 63312:2021

Fecha de publicación: 18/01/2021 Power transformers – Part 22-6: Power transformer and reactor fittings – Electric fans for transformers IEC 60076-22-6:2021

Fecha de publicación: 18/01/2021 Power transformers – Part 22-5: Power transformer and reactor fittings – Electric pumps for transformers IEC 60076-22-5:2021

Fecha de publicación: 19/01/2021 Corrigendum 1 – Semiconductor devices – Part 17: Magnetic and capacitive coupler for basic and reinforced insulation IEC 60747-17:2020/COR1:2021

Fecha de publicación: 19/01/2021 Amendment 4 – International Electrotechnical Vocabulary (IEV) – Part 121: Electromagnetism IEC 60050-121:1998/AMD4:2021

Fecha de publicación: 21/01/2021 Switchgear and controlgear and their assemblies for low voltage – Environmental aspects IEC TS 63058:2021

Fecha de publicación: 21/01/2021 Railway applications – Rolling stock – Batteries for auxiliary power supply systems – Part 4: Secondary sealed nickel-metal hydride batteries IEC 62973-4:2021

Fecha de publicación: 26/01/2021 Mechanical structures for electrical and electronic equipment – Aisle containment for IT cabinets – Part 3: Aspects of operational and personal safety IEC TS 62966-3:2021

Fecha de publicación: 26/01/2021 Amendment 2 – Medical electrical equipment – Part 1-3: General requirements for basic safety and essential performance – Collateral Standard: Radiation protection in diagnostic X-ray equipment IEC 60601-1-3:2008/AMD2:2021

Fecha de publicación: 28/01/2021 Piezoelectric, dielectric and electrostatic devices and associated materials for frequency control, selection and detection – Glossary – Part 3: Piezoelectric, dielectric and electrostatic oscillators IEC TS 61994-3:2021