CISPR TR 18-3:2017
[Current]
Radio interference characteristics of overhead power lines and high-voltage equipment - Part 3: Code of practice for minimizing the generation of radio noise
...lable, or in the case of a proposed line, the
results of measurements made one line of similar design in a similar climate and pollution
environment could be used;
3) from the figures mentioned in 4...
...Therefore, if the 50 % level is
known, the 80 % level may be estimated;
4) the 80 % level may be predicted by adding 5 dB to 15 dB, depending on the climate, to the
fair-weather level estimated from the simple formula given in 5...
...lar method of prediction to use in the case of a particular proposed line will depend
on whether the interest is in conductor corona or noise due to insulators and/or hardware that
is whether the conductors are to operate at a voltage gradient great...
