During discharges take place average currents 30,000 amperes, but available more 500000A. Available very significantly magnetize any substances capable of magnetization present at the site, for a long time - especially in the case of field ubiquitous Fe, Fe2O3.FeO, and in very many cases water pipes present there underground.
Din magnetisation ng tubes pipe (bakal) underground, Natitirang doon pagkatapos ng mga mataas na boltahe pulses. Na maaaring magkaroon ng malaking epekto sapilitan electromagnetic field Sa panahon ng paglabas (approx. 30 000 Amperes, minsan maaaring mas 500 000) - L ightning ko nduced R M agnetism emanent, posibleng mahanap dito . Kababalaghan ay sanhi ng isang malaking field ng electromagnetic Iyon arises Sa discharges sa agarang paligid nito.