**The Wires Themselves**: Many wires in distribution cabinets will have wire numbers printed directly on their insulating sheaths. These wire numbers may be numbers, alphanumeric combinations, or with specific symbols., with the aim of facilitating installation, maintenance, and troubleshooting. Look for neat cables, solid grounding, and the right wire size. Each circuit should have its own breaker or fuse. Check for UL or CE marks and make sure everything follows local codes. If the use of the Cable Database has been determined to be unsuitable for a project, the cable scheduling procedure in paragraphs following shall be followed.