Читать книгу Automation of Water Resource Recovery Facilities - Water Environment Federation - Страница 143

At the end of a project, users or owners typically require contractors to provide a set of “record” or as-built P&IDs, that is, drawings that reflect changes that occurred during construction and startup. They not only serve as an accurate record of the new or upgraded facility’s actual equipment and system configurations, but also can be used as a training tool. As-built P&IDs also provide a basis for future renovations or upgrades.