Izintambo ze-aluminium eziphezu kwendlu zisetshenziswa ngaphandle ezindaweni zokusabalalisa. Zithwala ugesi kusuka ezintanjeni zikagesi ziye ezakhiweni nge-weatherhead. Ngokusekelwe kulo msebenzi othize, izintambo zichazwa nangokuthi izintambo zesevisi. Izintambo ze-aluminium eziphezu kwendlu zifaka izinhlobo ze-duplex, triplex, kanye ne-quadruplex. Izintambo ze-duplex zisetshenziswa ezintanjeni zikagesi zesigaba esisodwa, kanti izintambo ze-quadruplex zisetshenziswa ezintanjeni zikagesi zesigaba ezintathu. Izintambo ze-Triplex zisetshenziselwa kuphela ukuthwala ugesi kusuka ezintanjeni zikagesi kuya kumakhasimende.
Umqhubi we-aluminiumIzintambo zenziwe ngochungechunge lwe-aluminium oluthambile lwe-1350-H19. Zigqunywe nge-polyethylene ye-thermoplastic ekhishwe noma i-polyethylene exhunywe nge-cross-linked ukuze zivikeleke ezimweni zemvelo zangaphandle eziyinkinga. Izintambo zakhiwe ngezinga lokushisa lokusebenza elifinyelela kuma-degrees angu-75 kanye nesilinganiso se-voltage esingu-600 volts.


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