
373.		EN 50173-1 [documento eletrónico] : information technology: generic cabling systems: part 1: general requirements / European Commitee for Electrothecnical Standardization Data Publicação: 2011 Tema: Normas
374.		EN 50399 [documento eletrónico] : common test methods for cables under fire conditions: heat release and smoke production measurement on cables during flame spread test: test apparatus, procedures, results / European Commitee for Electrothecnical Standardization Data Publicação: 2011 Tema: Normas
375.		EN 50310 [documento eletrónico] : telecommunications bonding networks for buildings and other structures / European Commitee for Electrothecnical Standardization Data Publicação: 2016 Tema: Normas
376.		EN 50399:2011/A1 [documento eletrónico] : common test methods for cables under fire conditions: heat release and smoke production measurement on cables during flame spread test: test apparatus, procedures, results / European Commitee for Electrothecnical Standardization Data Publicação: 2016 Tema: Normas
377.		EN 50065-1 [documento eletrónico] : signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz: Part 1: general requirements, frequency bands and electromagnetic disturbances / European Committee for Electrotechnical Standardization Data Publicação: 2011 Tema: Normas
378.		EN 50470-3 [documento eletrónico] : electricity metering equipment (a.c.): Part 3: particular requirements - static meters for active energy (class indexes A, B and C) / European Committee for Electrotechnical Standardization Data Publicação: 2006 Tema: Normas
379.		EN 50470-3/A1 [documento eletrónico] : electricity metering equipment (a.c.): Part 3: particular requirements - static meters for active energy (class indexes A, B and C) / European Committee for Electrotechnical Standardization Data Publicação: 2018 Tema: Normas
380.		EN 14012 [documento eletrónico] : Postal services - quality of service - complaints handling principles Data Publicação: 2019 Tema: Normas
381.		EN 13850 [documento eletrónico] : postal services - quality of services - measurement of the transit time of end-to-end services for single piece priority mail and first class mail Data Publicação: 2020 Tema: Normas