Junction boxes without covers are the most common places to find exposed and hazardous wires. Electricians use junction boxes to connect new installations or extend existing installations. If you. Poorly maintained or exposed electrical wiring increases the likelihood of fires and electrical shocks in the workplace. When this barrier is compromised, the. Metal raceways, cable armor, and other metal enclosures for conductors shall be metallically joined together into a continuous electric conductor and shall be so connected to all boxes, fittings, and cabinets as to provide effective electrical continuity. They draw the pictures, reality is your headache There's a building nearby, not a customer, they have a similar construction, wide open, it is a big converted bus garage.