1. Nā kiko'ī huahana: Zinc-clad steel composite grounding electrode hoʻohana i ke kila kūikawā e like me ke kila kila, nona ka ikaika a me ka wela o ke kila e hōʻoia i ka hana leakage grounding.
2. Hiki ke hoʻopilikino ʻia kā mākou huahana i nā kikoʻī like ʻole (diameter, lōʻihi) e like me nā koi o ka mea kūʻai aku.
3. ʻO ke kūʻai pololei ʻana o ka hale hana kumu, ʻoi aku ka maikaʻi.