Construction Technical Standards: Drainage, Electrical, and Fire Safety

Pipeline Materials for Water Disposal Facilities

Identify suitable pipeline materials for water disposal facilities under Section HS-5 Drainage CTE DB Health. Briefly comment on the most appropriate applications for each:

• Cast Iron Pipe: Most used for water supply networks. Features bell socket joints with a rubber gasket.
• PVC Plastic Pipes: Widespread in residential sanitation networks. Utilizes bell socket joints with a rubber gasket or bonded joints.
• Polypropylene Pipes: Plastic pipes increasingly used in plumbing. Features pressure joints.
• Stoneware Pipes: Capable of supporting very aggressive waters. In short lengths, they are joined by bell-shaped plugs and rubber gaskets. Widely used in external networks, particularly for household connections.
• Concrete Pipes: Traditionally used extensively until the advent of PVC, which has largely replaced them. Joints are made with a rubber gasket or concrete ring.

Anchors in Urban Water Networks

In urban water networks, certain elements called anchors are crucial. Understand their location, role, and function:

In these networks, all components subjected to hydraulic pressure thrust (e.g., elbows, changes in direction, reductions, branch connections, shutoff valves, or regulation valves) must be secured by a solid anchor to counteract the thrust and ensure immobility. Generally, solid concrete anchoring is used and must be arranged so that the joints remain exposed.

Electrical Volumes in Bathrooms: BT-27 ITC REBT

The BT-27 ITC REBT specifies four distinct volumes for premises containing a bath or shower. Understanding their limitations is crucial for electrical safety:

• Volume Zero: Inside the bathtub or shower.
• Volume One: Extends horizontally 2.25 meters above the finished floor level and vertically around the tub or shower.
• Volume Two: Extends from the vertical plane limiting Volume One, parallel to 0.60 meters. The horizontal plane remains at 2.25 meters above the finished floor level.
• Volume Three: Extends from the vertical plane limiting Volume Two, parallel to 2.40 meters. The horizontal plane remains at 2.25 meters above the finished floor level.

Emergency Lifts in Residential Buildings: Fire Safety

Emergency lift installations in certain residential buildings must meet specific fire safety requirements. Under Section SI4 DB IF Security in Case of Fire of the CTE, these facilities must have the following features:

• Minimum load capacity of 630 kg.
• Cabin area of 1.40 m².
• Passage width of 0.80 m.
• Speed allowing the entire route to be covered in less than 60 seconds.
• A dedicated push-button access panel on each floor, which, when activated, dispatches the lift to that floor and allows it to be controlled exclusively from within the cabin.
• In case of power failure, it must automatically switch to its own independent energy source with a minimum one-hour autonomy.