Читать книгу Automation of Water Resource Recovery Facilities - Water Environment Federation - Страница 83

Interconnecting wiring diagrams are also known as point-to-point wiring diagrams and, as the name implies, provide wiring connections for the complete control system in addition to wiring connections for equipment power and all other wiring needed for a complete facility design. Interconnecting wiring diagrams include all external wiring for each piece of equipment, control panel, instrument field devices, local control station, motor control centers, VSDs, automated control valves, lighting, and power panels. These diagrams are typically prepared by installing contractors, although, in some instances, design engineers can prepare them if they are included in the electrical design contract. Items to be included are

• Numbered terminal block identification for each wire termination;

• Identification of the assigned wire numbers and color coding for all interconnections;

• Identification of all wiring by the conduit, cable tray, wireway, and tag with, which the cable is installed;

• Terminal, junction boxes, and pull boxes in which the wire or cable is installed;

• Identification of equipment with functional name and contract tag number to which wiring is to be connected; all numbering must match the other contract documents including P&IDs; and

• Fiber optic patch panels with all fibers labeled and terminated, including spares.