Izintambo ze-NG-A zenziwe ngezinto ezisezingeni eliphezulu, eziqukethe ukuphepha komlilo, ukumelana nokugqoka nokumelana nokucindezela, futhi zifanele izikhathi ezihlukahlukene.Intambo inokwethenjelwa futhi izinzile, ngokusebenza okuphezulu kakhulu, iwukhetho lwakho olufanele lwekhebula.
Izintambo ze-NG-A zenziwa ngezinto ezisezingeni eliphezulu, futhi ukukhetha kwe-conductor yethusi noma i-aluminium kungenziwa ngokwezifiso ngokuya ngezidingo zamakhasimende.Ukufakwa kwe-PVC kanye ne-sheath kwenza ungqimba lwe-insulation kanye ne-sheath yekhebula ibe nezici zokumelana nokugqoka, ukumelana nokucindezela kanye nokumelana nokugqwala.Impilo yomkhiqizo ingaphezu kweminyaka engama-30 futhi igcina uzinzo.Phakathi nenqubo yokukhiqiza, sizosebenzisa izindlela eziningi zokuqinisekisa ikhwalithi, njengebhalansi yokuvala uphawu kagesi, (i-XLPE) ukubeka kanye nokuhlola ingcindezi ethile.