Zingwezi ndi zoyenera kugwetsa, waya wapadziko lapansi, waya wozama kwambiri wozama wozama wozama m'bokosi lachitsime ndi zina zomwe zafotokozedwa mu (NEC) 1.4-1.8
● Zopanda Halogen, Zosagwira Moto.
● Zaka 15 za Kupanga Zochitika Mu Power Cable.
● UL4703 Yovomerezeka & Kufikira 2000V DC.
● Mapiritsi Awiri Oyenera kumadera akunja ankhanza.
● Kulumikizana kokhazikika & Kuchepetsa mtengo wokonza.
● Zitsanzo zaulere zilipo.