Letter Symbols for Physical Quantities DIN 1304
This Standard is included in DIN Handbook 202. In conjunction with DIN 1304 Part 1, specifies letter symbols for quantities specific to fluid mechanics. Letter symbols specified in DIN 1304 Part 1 have been included here only as far as their meaning differs or has been restricted. Free Certification Academy…
Limitation of Emission of Harmonic Currents CEI IEC 61000-3-4
Electromagnetic compatibility (EMC) – Part 3-4: Limits – Limitation of emission of harmonic currents in low-voltage power supply systems for equipment with rated current greater than 16 A. The recommendations of this technical report are applicable to electrical and electronic equipment with a rated input current exceeding 16 A per…
CEI IEC 61000-4-9 Pulse Magnetic Field Immunity Test
Electromagnetic compatibility (EMC) – Part 4-9: Testing and measurement techniques – Impulse magnetic field immunity test. IEC 61000-4-9:2016 is available as IEC 61000-4-9:2016 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 61000-4-9:2016 specifies the immunity requirements, test…
EMC Measurement Techniques IEC 61000-4-8
IEC 61000-4-8:2009 RLV contains the International Standard and its Redline version. The Redline version provides you with a quick and easy way to compare all the changes between this standard and its previous edition. The Redline version is not an official IEC Standard, only the current version of the standard…
CEI IEC 61000-4-7
Electromagnetic compatibility (EMC) – Part 4-7: Testing and measurement techniques – General guide on harmonics and interharmonics measurements and instrumentation, for power supply systems and equipment connected thereto. IEC 61000-4-7:2002+A1:2008 applies to instrumentation intended for measuring spectral components in the frequency range up to 9 kHz which are superimposed on…
CEI IEC 61000-4-6
Electromagnetic compatibility (EMC) – Part 4-6: Testing and measurement techniques – Immunity to conducted disturbances, induced by radio-frequency fields. IEC 61000-4-6:2013 relates to the conducted immunity requirements of electrical and electronic equipment to electromagnetic disturbances coming from intended radio-frequency (RF) transmitters in the frequency range 150 kHz up to 80…
CEI IEC 61000-4-5
Electromagnetic compatibility (EMC) – Part 4-5: Testing and measurement techniques – Surge immunity test. IEC 61000-4-5:2014+A1:2017 relates to the immunity requirements, test methods, and range of recommended test levels for equipment with regard to unidirectional surges caused by over-voltages from switching and lightning transients. Several test levels are defined which…
CEI IEC 61000-4-4
Electromagnetic compatibility (EMC) – Part 4-4: Testing and measurement techniques – Electrical fast transient/burst immunity test. IEC 61000-4-4:2012 RLV contains both the official IEC International Standard and its Redline version. The Redline version is not an official document, it is available in English only and provides you with a quick…