In the case of the strongest discharges several tens of meters. (here will be located as an illustration photo of the discharge 3000V, corona surrounds to a distance of about 1 mm, it is probably 3W, ie approximately 1 mA).
Katika kesi ya yanayovuja nguvu kadhaa mamia ya mita. (Je, kuwa iko hapa kama kielelezo photo ya 3000V usaha, corona unakizunguka na umbali wa mm kuhusu 1, pengine ni 3W, yaani Takriban 1 mA).