URD cable, short for Underground Residential Distribution Cable, is a type of low-voltage power cable used in secondary power distribution networks. B-230 Aluminum 1350-H19 Wire for Electrical Purposes. Conductors are stranded, compressed 1350-H19, H16, or H26 aluminum. One of the most important components in contemporary power distribution systems, particularly in the electrification of neighborhoods, is the underground residential distribution (URD) aluminum cable. Typically made of aluminum, this is a durable wire used to deliver power from transformers to service entry or meter of a given structure. They are offered in single conductor, duplex, triplex, and quadruplex. The cable that you choose for your wiring distribution panel must be rated for the system voltage. Depending on the application, 300 V, 600 V, or even higher might be the best choice.
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