Inscriptions for Red-Colored Tapes: ELECTRIC LINE, HIGH VOLTAGE. COMMUNICATIONS CABLE, OPTICAL FIBER CABLE. Comply with NFPA 70, 70E, and 29 CFR 1910. Preprinted aluminum signs, punched or drilled for fasteners, with colors, legend, and size required for application. This standard describes requirements for numbering and labeling of real property electrical distribution equipment, circuits, and site lighting at Lawrence Livermore National Laboratory. This is an internal LLNL standard meant to guide the design of new facilities, facility modifications, and. Purpose – This Article is about all electrical equipment numbering system, Electrical Panel Numbering System, Electrical Wire Numbering System, Electrical Relay Numbering System, Electrical Drawing Numbering System, Electrical Schematic Numbering System, Electrical Cable Numbering Systems. Proper labeling is a mandatory requirement under electrical standards and plays a decisive role during inspection, operation, maintenance, and emergency response. Importance of Labeling in Solar ACDBs An ACDB interfaces directly with the inverter output and the building or grid electrical. Sequence of Work: Where identification is to be applied to surfaces that require finish, install identification after completion of finish work. Degrease and clean surfaces to receive nameplates and labels. 4-mm) grommets. Nameplate on motor controllers, disconnect switches, automatic transfer switches, switchgear, switchboards, panelboards and transformers shall indicate source, voltage, disconnect location, and load served.