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The 3M 7000133186 is a buried barricade tape from the Scotch Barricade Tapes 300 Series, designed to mark the location of underground electric lines and protect crews from accidental dig-ins during excavation and trenching work. Bold 2-inch black characters are printed on a bright background for high visibility, delivering a clear warning message that remains legible even after soil contact. Sold by the roll, this tape is a cost-effective line marking solution used by electrical contractors, utility crews, and municipal maintenance teams working around buried infrastructure.
This tape is intended for installation directly in the trench above buried electric conduit or direct-burial cable, serving as a detectable warning layer for future excavators. It is commonly used in residential, commercial, and municipal utility installations where local codes or best practices require underground line marking. Electrical crews typically place it 12 inches or more above the buried conductor before backfilling to provide a warning layer that is encountered before the line itself during any future digging operations.
Designed as an OEM-style underground marking tape suitable for use above buried electric lines in trench installations where warning tape is specified by project plans or local code requirements.
Buried barricade tape is installed by electrical contractors and utility technicians as part of the trench backfill process. De-energize and lock out any active circuits in the trench before personnel work near open excavations. Place the tape horizontally above the buried line at the depth specified by local ordinance or project specification before completing backfill. Consult applicable NEC and local utility standards for required burial depth and tape placement height above the conductor.
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