There is a metal shield outside the substation box, which cannot produce radiation. This is a completely closed safety body, and it's okay to touch it with your hands. Don't worry at all.
It seems that ultrasound is harmful to the human body, and it certainly needs to be close enough.
According to the planning requirements of power facilities, the layout of substations (or 10kv transformer boxes) should be separated. As we know, the vertical distance between 10kv overhead line and the area passing through residential areas is 6.5m. Therefore, the distance between 10kv substation and residential buildings should be greater than 6.5m. 。