Specification for installations inside buildings conveying water for human consumption - Part 2: Design

This document outlines the technical requirements for the design phase of drinking water supply systems installed within buildings. It establishes specific criteria ensuring the safe and efficient delivery of potable water from the building entrance to all points of use. The guidelines address essential aspects such as system layout, material selection, and hydraulic calculations to maintain water quality throughout the distribution network. Particular attention is given to preventing contamination risks and ensuring adequate flow rates under various operating conditions. These specifications are developed to align with broader European harmonization efforts regarding water supply infrastructure. The content focuses on the engineering principles necessary for designing robust systems that meet health and safety standards. It serves as a reference for professionals involved in planning and implementing water installation projects within residential, commercial, and industrial structures. By adhering to these provisions, designers can ensure reliability and durability while minimizing potential operational issues over the lifespan of the facility.