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A concise overview of shielding options for various types of interference is discussed in this guide. Recommendations on shielding practices for low voltage cables are given. Suggestions on terminating and grounding methods are provided.
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A concise overview of shielding options for various types of interference is discussed in this guide. Recommendations on shielding practices for low voltage cables are given. Suggestions on terminating and grounding methods are provided.
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Superseded by 549-2005 (SH/SS95331). This standard defines terms related to the areas of corona and the electromagnetic environment of overhead power lines. Its scope is to define the most widely used terms specific to or associated with overhead power-line corona and fields. This includes terms used in electric and magnetic fields, ions, radio frequency propagation, electromagnetic signals and noise, audible noise, coupled voltages and current, shock and perception, weather and related statistical terms, and measurements and measuring devices.
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Information to assist in determining the electrical parameters of communication and control cables necessary to improve the overall reliability of these cables when used in high-voltage environments is the objective of this standard. There should be a very high probability (greater than 99%) that these cables will perform their intended function for specified periods of time in high-voltage interference conditions. The end result being more reliable communications over said cables. The information presented in this standard will apply equally to either new or existing [already installed] cables.
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Controlled test conditions, test apparatus, test methods and data presentation, all of which form the basis for establishing the energy levels of spurious emissions of mobile communication transmitters designed to generate FM signals in the frequency range of 25 to 1000 MHz are covered. The purpose is to enable design and system engineers engaged in a variety of development projects to achieve uniform results in recognizing sources and nature of RF spurious emissions emanating from vehicular communications transmitters. Procedures for measuring both broadband and narrowband spectra are provided for both conducted and radiated emissions. Specified limits are not included. However, reference values that are not limited by the state of the art are provided. Transmitter test conditions, apparatus and method are based on standard instrumentation and measuring techniques and do not require any special apparatus other than necessary terminal simulators. The procedures do not cover the associated antenna and transmission lines.
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Requirements for measuring instruments used for electromagnetic interference (EMI) measurements are provided, involving quasi-peak, peak, and average detection in the frequency range 9 kHz to 40 GHz.
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A set of practical methods is provided for helping to manage the levels of risks due to electromagnetic (EM) disturbances throughout the lifecycles of electronic equipment. These risks include the consequences of all types of errors, malfunctions, or failures in products, equipment, and systems that employ modern electronic technologies (i.e., in hardware and/or software). The work done in creating IEC 61000-1-2:2016 (Electromagnetic compatibility (EMC) - Part 1-2: General - Methodology is supplemented by this standard for the achievement of functional safety of electrical and electronic systems including equipment with regard to electromagnetic phenomena) by providing requirements for detailed practical techniques and measures for helping to manage risks (not just functional safety) that could be caused by EM disturbances. These techniques and measures would be used in the management, specification, design, implementation, verification and validation, and through-life operation, maintenance, repair, refurbishment, upgrading, and eventual dismantling for disposal of equipment and systems employing digital electronic systems, for both hardware and software (firmware).
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