Normativa ISO UNE gratis

Fecha de publicación: 08/05/2018 Conventions concerning electric circuits IEC 60375:2018

Fecha de publicación: 08/05/2018 Carbon brushes, brush holders, commutators and slip-rings – Definitions and nomenclature IEC 60276:2018

Fecha de publicación: 08/05/2018 Surface mounted piezoelectric devices for frequency control and selection – Standard outlines and terminal lead connections – Part 2: Ceramic enclosures IEC 61837-2:2018

Fecha de publicación: 09/05/2018 Amendment 2 – Composite string insulator units for overhead lines with a nominal voltage greater than 1 000 V – Part 2: Dimensional and electrical characteristics IEC 61466-2:1998/AMD2:2018

Fecha de publicación: 14/05/2018 Nuclear power plants – Instrumentation systems important to safety – Electrical penetration assemblies in containment structures IEC 60772:2018

Fecha de publicación: 16/05/2018 Nuclear power plants – Instrumentation systems important to safety – Pressure transmitters: Characteristics and test methods IEC 62887:2018

Fecha de publicación: 17/05/2018 Nuclear power plants – Instrumentation and control systems important to safety – Design and qualification of isolation devices IEC 62808:2015+AMD1:2018 CSV

Fecha de publicación: 17/05/2018 Amendment 1 – Nuclear power plants – Instrumentation and control systems important to safety – Design and qualification of isolation devices IEC 62808:2015/AMD1:2018

Fecha de publicación: 24/05/2018 Specification of technical grade sulphur hexafluoride (SF6) and complementary gases to be used in its mixtures for use in electrical equipment IEC 60376:2018

Fecha de publicación: 24/05/2018 Fibre optic interconnecting devices and passive components – Fibre optic tuneable bandpass filters – Generic specification IEC 63032:2018