 Ya isi na ngwaahịa ndị nèzí elu-voltaji fuuz, ibu switches, nèzí elu-voltaji iche switches, elu-voltaji insulators, nèzí elu-voltaji zinc oxide arresters na ọla kọpa na-anwụ-mgbatị ngwaahịa gụnyere grounding clamps na soldering tuwizas. 