This standard establishes uniform procedures for the measurement of radio noise generated by corona from overhead power lines. Measurement procedures in this standard are also valid for other power-line noise sources such as gaps and harmonics; however, most of the precautionary information, analysis, and data plotting techniques were written and developed primarily for corona discharges. The procedures are not valid for measuring transient radio noise sources that occur during breaker or disconnect switching operations. The procedure applies in the frequency range of 0.010-1000 MHz; however, the emphasis is on the standard amplitude-modulation broadcasting (0.535-1.605 MHz) and television broadcasting (54-72 MHz, 76-88 MHz, 174-216 MHz, and 470-906 MHz) bands. The procedures described for measurements in and near substations are suggested procedures at this time until further information is obtained. This standard is applicable to both ac and dc transmission lines and substations.
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