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Urd Ampacity Chart

Urd Ampacity Chart - 90°c conductor temperature, 20°c ambient, rho 90, 100% load factor for two. Aluminum conductor 600v | underground residential distribution (urd) cable description: Single and quadruple based on 3/c. All yellow extruded stripe, cable. All values are nominal and subject to correction. Ure, 20°c ambient temperature, rho 90, 100% load factor. Ampacity based on 90°c conductor temperature, 20°c ambient, rho 90, 100% load factor. Ampacity based on 40 ̊c ambient temperature, crosswind at 2ft/s, and no sun. 600v secondary urd concentric lay aluminum 1350 conductors. Ampacity is the maximum current that a conductor can carry continuously under the conditions of use without exceeding its temperature rating.

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