Intambo yolawulo ye-PVC egqunyiweyo ye-PVC ifanelekile kwiintambo zokulawula, umqondiso, ukhuseleko, kunye neenkqubo zokulinganisa ezinombane olinganisiweyo we-450 / 750V nangaphantsi okanye i-0.6 / 1kV nangaphantsi.