Study on Noise Prediction Model and Control Schemes for Substation

Table 3

The overstandard distances of industrial noise by Lanchow 330 kV substation meter.

Direction	The longest overstandard distance
	Plan A	Plan B	Plan C	Plan D
East	200	170	15	—
South	95	90	—	—
West	115	110	5	—
North	100	80	50	—