Measuring relays and protection equipment - Part 187-1: Functional requirements for differential protection - Restrained and unrestrained differential protection of motors, generators and transformers (Endorsed by Asociación Española de Normalización in October of 2021.)
Edition 2021-10-01

Scales and sizes for plotting frequency characteristics and polar diagrams (Endorsed by Asociación Española de Normalización in October of 2020.)
Edition 2020-10-01

Solderless connections - Part 5: Press-in connections - General requirements, test methods and practical guidance (Endorsed by Asociación Española de Normalización in October of 2020.)
Edition 2020-10-01

Conventions concerning electric circuits (Endorsed by Asociación Española de Normalización in October of 2018.)
Edition 2018-10-01

Fixed capacitors for use in electronic equipment - Part 1: Generic specification (Endorsed by Asociación Española de Normalización in October of 2021.)
Edition 2021-10-01

Fixed capacitors for use in electronic equipment - Part 1-1: Generic blank detail specification (Endorsed by Asociación Española de Normalización in October of 2022.)
Edition 2022-10-01

Fixed capacitors for use in electronic equipment - Part 19: Sectional specification: Fixed metallized polyethylene terephthalate film dielectric surface mount DC capacitors (Endorsed by Asociación Española de Normalización in October of 2022.)
Edition 2022-10-01

Fixed capacitors for use in electronic equipment - Part 24: Sectional specification - Fixed tantalum electrolytic surface mount capacitors with conductive polymer solid electrolyte (Endorsed by Asociación Española de Normalización in October of 2021.)
Edition 2021-10-01

Fixed capacitors for use in electronic equipment - Part 25: Sectional specification: Fixed aluminium electrolytic surface mount capacitors with conductive polymer solid electrolyte (Endorsed by Asociación Española de Normalización in October of 2021.)
Edition 2021-10-01

Magnetic materials - Part 6: Methods of measurement of the magnetic properties of magnetically soft metallic and powder materials at frequencies in the range 20 Hz to 100 kHz by the use of ring specimens (Endorsed by Asociación Española de Normalización in October of 2021.)
Edition 2021-10-01