Is There A Romex 1 AWG Electrical Cable?
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No, Southwire Firm only producers their Romex® brand as large as two AWG with 3 conductors as well as a bare copper ground wire. Probably the most predominant reason becoming that Romex® cable is only authorized for indoor use and as the electrical cables get larger they usually run outdoors more generally than indoors.
Indoor cables including Romex® are engineered to only be utilized indoors for price saving factors. If Southwire place more effort into manufacturing a tougher jacket that can be utilised outdoors as well as have to be approved for such use than they will be considerably more high-priced. Consequently, Southwire makers MC cable, or Metal Clad for outside and conduit use together with UFB cable, or Underground Feeder, for direct burial applications.
In case you require a 1 AWG outside or conduit electrical cable then you must use MC cable. It has THHN wires as conductors in conjunction with a green THHN wire as a ground wire. MC cable has been tested and authorized for use outdoors and in conduit in most electrical applications. It is the most popular and cheapest upgrade from a Romex® indoor cable to an outside cable.
If your application requires an underground cable than you are able to use UFB cable as big as 6 AWG or possibly a tray cable for anything bigger. In this specific case a 1 AWG electrical cable that requirements to become made use of underground will have to be a tray cable which also comes with an extra bare copper ground wire. The average ground wire size within a 1 AWG cable is 6 AWG since ground wires don't need to have exactly the same quantity of energy as the primary conductors in the cable.
For those who search about enough you can discover a supplier that should cut 1 AWG underground cables towards the precise length of one's application no matter the distance. The truth is, some suppliers bank on buyers that want exact cuts mainly because some suppliers, distributors and producers will have either minimum orders or typical spools sizes only. That indicates you could possess a run of 130 feet but you are stuck selecting between a 100 foot and 500 foot spool size. That does not make an excessive amount of sense but the suppliers are attempting to defend themselves against ending up with short lengths that they may need to scrap down the road.
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