Electrical · E-AKMFQ

Underground Utilities Warning Tape Installation

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Underground utility warning tape is installed in trenches a minimum of 12 inches above conduits, running continuously from manhole to manhole with three feet of slack rolled up at each end inside vault or pullbox locations. The tape consists of a polyethylene film six inches wide and 0.004 inches thick with a minimum strength of 1,750 psi, featuring a continuous inscription naming the specific utility and color-coded red for electric and orange for phone and signal lines. The tape includes foil backing or detection wires sufficient for metal detector location to a depth of five feet and is placed in parallel runs with one strip on each side of the trench spaced not less than 12 inches on center across the trench width.

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