Talafeagai mo le insulation o vaega tetee eseese.E pei o le uaea soofaatasi viliina, insulation faaleagaina toe faaleleia, insulation puipuiga o afi eseese ma vaega faaeletonika e pei o transformers, afi, capacitors, voltage regulators.E mafai foi ona faʻaaogaina mo le faʻapipiʻiina, faʻapipiʻi, faʻapipiʻi, toe faʻaleleia, faʻamaufaʻailogaina ma le puipuia i totonu o le gaosiga o pisinisi.