No ka hōʻailona a me ka uwea hoʻomalu i ka uila o nā ʻōnaehana kamepiula, nā lako mana uila, ka mīkini keʻena a i ʻole nā mea hoʻokele kaʻina hana, e pono ai ka pale mai ka electromagnetic interference (EMI) a me ka electromagnetic radiation (EMR).