Normativa ISO UNE gratis

Fecha de publicación: 28/02/1990 Lamp caps and holders together with gauges for the control of interchangeability and safety. Part 4: Guidelines and general information IEC 60061-4:1990

Fecha de publicación: 07/03/1990 Characteristic of indoor and outdoor post insulators for systems with nominal voltages greater than 1000 V IEC 60273:1990

Fecha de publicación: 31/03/1990 Methods of measurement for equipment used in digital microwave radio transmission systems. Part 3: Measurements on satellite earth stations – Section One: General IEC 60835-3-1:1990

Fecha de publicación: 31/03/1990 Methods of measurement for equipment used in digital microwave radio transmission systems. Part 2: Measurements on terrestrial radio-relay systems – Section One: General IEC 60835-2-1:1990

Fecha de publicación: 01/04/1990 Methods of measurement for equipment used in digital microwave radio transmission systems. Part 1: Measurements common to terrestrial radio-relay systems and satellite earth stations – Section One: General IEC 60835-1-1:1990

Fecha de publicación: 15/04/1990 Telecontrol equipment and systems. Part 4: Performance requirements IEC 60870-4:1990

Fecha de publicación: 15/05/1990 Electrical apparatus for explosive gas atmospheres. Part 16: Artificial ventilation for the protection of analyser(s) houses IEC TR 60079-16:1990

Fecha de publicación: 31/05/1990 Electromagnetic compatibility (EMC) – Part 2: Environment – Section 1: Description of the environment – Electromagnetic environment for low-frequency conducted disturbances and signalling in public power supply systems IEC TR 61000-2-1:1990

Fecha de publicación: 01/08/1990 International Electrotechnical Vocabulary (IEV) – Part 161: Electromagnetic compatibility IEC 60050-161:1990

Fecha de publicación: 15/08/1990 Packaging of winding wires. Part 2: Cylindrical barrelled delivery spools. Section Two: Specification for returnable spools made from thermoplastic material IEC 60264-2-2:1990