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The 3M 7000133187 is a buried barricade tape from the Scotch 300 Series, designed to mark the underground path of high-voltage electrical cables. The tape features bold 2-inch black characters printed on a bright background, creating a highly visible warning that reads CAUTION HIGH VOLTAGE CABLE BURIED BELOW. It is installed below grade during conduit or direct-burial cable runs to alert excavators and other trades to the presence of energized infrastructure. Electricians and utility contractors use this tape as a standard precautionary measure during trenching and burial operations.
This tape is suited for residential and commercial electrical installations where underground conductors require permanent marking. It is placed in the trench above the cable or conduit prior to backfill, providing a warning layer that is encountered during any future excavation. The tape is sold by the roll with a minimum order quantity of 4 rolls.
Designed as an OEM-style underground warning tape for use above direct-buried electrical cables and conduit runs in residential and commercial trenching applications.
Installation is typically performed by licensed electricians or utility contractors during trenching operations. The tape should be placed in the trench directly above the buried cable or conduit before backfill is completed, at a depth that will be encountered by digging equipment before reaching the conductors. Follow applicable NEC requirements and local jurisdiction standards for underground warning tape placement depth. Always de-energize circuits where possible before beginning any excavation near existing buried infrastructure.
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