1. Pono huahana:
a. Hoʻohana ka zinc-clad steel composite grounding electrode i ke kila haʻahaʻa-carbon e like me ke kila kila, nona ka ikaika a me ke kūpaʻa wela o ke kila, a hōʻoia i ka hana leakage grounding.
b. Hoʻohana ʻia ʻo Zinc e like me ka hoʻopaʻa ʻana i ka metala, ʻo kona conductivity he 2.5 mau manawa ma mua o ke kila, a ʻoi aku ka maikaʻi o kāna conductivity.
c. Ma ke ʻano he metala paʻa, ʻoi aku ka ikaika o ka zinc a hoʻolōʻihi i ke ola lawelawe. "
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.