IEC 61000-4-8 pdf download
IEC 61000-4-8 pdf download Electromagnetic compatibility (EMC) – Part 4-8: Testing and measurement techniques – Power frequency magnetic field immunity test 3.8 decoupling network, back filter electrical circuit intended to avoid reciprocal influence with other equipment not submitted to the magnetic field immunity test 3 4 General The magnetic fields to which equipment is subjected may influence the reliable operation...
IEC 61000-4-13 pdf download
IEC 61000-4-13 pdf download Electromagnetic compatibility (EMC) – Part 4-13: Testing and measurement techniques – Harmonics and interharmonics including mains signalling at a.c. power port, low frequency immunity tests 1 Scope and object This part of IEC 61 000 defines the immunity test methods and range of recommended basic test levels for electrical and electronic equipment with rated current up...
IEC 61000-4-14 pdf download
IEC 61000-4-14 pdf download Electromagnetic compatibility (EMC) – Part 4-14: Testing and measurement techniques – Voltage fluctuation immunity test for equipment with input current not exceeding 16 A per phase – performance criteria used and defined in the technical specifications; – description of the test set-up. If the actual operating signal sources are not available to the EUT, they may...
IEC 61156-5 pdf download
IEC 61156-5 pdf download Multicore and symmetrical pair/quad cables for digital communications – Part 5: Symmetrical pair/quad cables with transmission characteristics up to 1 000 MHz-horizontal floor wiring – Sectional specification 3 Terms and definitions For the purposes of this document, the terms and definitions defined in IEC 61 1 56-1 apply. 4 Installation considerations 4.1 General remarks Installation considerations...
IEC 61226 pdf download
IEC 61226 pdf download Nuclear power plants – Instrumentation and control important to safety – Classification of instrumentation and control functions 1 Scope This International Standard establishes a method of classification of the information and command functions for nuclear power plants, and the I&C systems and equipment that provide those functions, into categories that designate the importance to safety of...
IEC 61249-3-5 pdf download
IEC 61249-3-5 pdf download Materials for printed boards and other interconnecting structures – Part 3-5: Sectional specification set for unreinforced base materials, clad and unclad (intended for flexible printed boards) – Transfer adhesive films 1 Scope This part of IEC 61 249 gives requirements for transfer adhesive films for use in the fabrication of flexible multilayer boards or flex-rigid printed...
IEC 61300-2-5 pdf download
IEC 61300-2-5 pdf download Fibre optic interconnecting devices and passive components – Basic test and measurement procedures – Part 2-5: Tests – Torsion 1 Scope The purpose of this part of lEC 61300 is to determine the ability of the cable attachment element of the device under test to withstand torsional loads, while under tension, as might beexperienced during installation...
IEC 61300-3-43 pdf download
IEC 61300-3-43 pdf download Fibre optic interconnecting devices and passive components – Basic test and measurement procedures – Part 3-43: Examinations and measurements – Mode transfer function measurement for fibre optic sources 1 Scope This part of IEC 61 300 describes the method for measuring the mode transfer function (MTF) to be used in characterising the launch conditions for measurements...
IEC 61439-2 pdf download
IEC 61439-2 pdf download Low-voltage switchgear and controlgear assemblies – Part 2: Power switchgear and controlgear assemblies 8.4.3.2.2 Requirements for earth continuity providing protection against the consequences of faults within the ASSEMBLY Replacement of last paragraph: When removable or withdrawable parts are equipped with a metal supporting surface, these surfaces shall be considered sufficient for ensuring earth continuity of protective...
IEC 61558-2-4 pdf download
IEC 61558-2-4 pdf download Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V – Part 2-4: Particular requirements and tests for isolating transformers and power supply units incorporating isolating transformers 14 Heating This clause of Part 1 is applicable. 15 Short-circuit and overload protection This clause of Part 1 is applicable....