The invention discloses a
high voltage power transmission line live part
verification method based on
electric field intensity difference distribution
curve matching. The method includes the following steps that a measurement curve is obtained; matching calculation is carried out on the measurement curve and a
standard map; the data length of the measurement curve is determined, and smooth filtering
processing is conducted on the measurement curve and the
standard map; equal length
processing is conducted on the measurement curve and
simulation curves of the
standard map; filtering matching is carried out on the measurement curve and the
simulation curves of the standard map, and the waveform and the phase of the measurement curve are made to be consistent with those of the
simulation curves in the standard map; variance calculation is performed on the measurement curve and the simulation curves of the standard map, the simulation curve which has the smallest variance value with the measurement curve in the standard map is used as a matching curve, when the variance of the
field intensity difference value of the measurement curve and the
field intensity difference value of the matching curve is smaller than a variance threshold value, the minimum value of the measurement curve is larger than a minimum threshold value, and a
power transmission line to be measured is considered to be electrified. By the adoption of the method, whether an object to be measured is electrified or not can be judged only by measuring the
electric field intensity difference value on a measurement path, and thus the operation process is simplified.