Comply with National Electric Code (NEC) 504 - 80 and identify potential electrical hazards of equipment and machinery with Conduit Voltage Markers from ACCUFORM SIGNS. Black on orange labels provide a highly visible warning for electrical hazards. Ideal for marking conduit, pipes, circuit boxes, and electrical panels with the proper voltage and identification. Self-stick markers are adhesive-backed vinyl with peel-off liner for flat or semi-curved surfaces, such as control and panel boxes, and larger conduit.