Cruce De Instalaciones

CROSSING OF BUILDING SERVICES
according to the

Conchi González Pérez 20509668

CTE DB HS3 / CTE DB HS4 :

Section HS 3 Indoor Air Quality
Inlet dutchs
1Ducts should be uniform section andlack of obstacles all the way.
2Ducts must have a finish that hinder their fouling and should be practicable for registration and cleaning every 10 m or
less in all the way.

Section HS 4 WaterSupply
3.4 Separations with others building services
1The laying cold water pipes should be such that are not affected by heat, and therefore should always devise separate
from piping hot water(Domestic Hot Water supply or Heating system) at a distance of 4 cm, at least.When the two pipes
are in the same vertical plane, the cold water should always be below the hot water.
2The pipes must gobelow any item containing pipe or electrical or electronic devices, and any telecommunications
network, keeping a parallel distance of at least 30 cm.
3 With respect to the gas conduits is saved atleast a distance of 3 cm.

3.5 Signage
1Potable water pipes are marked with dark green or blue colors.
2When supplying water unfit for consumption, pipes, faucets and other endpoints of this buildingservice must be
properly marked so they can be identified as such in an easy and unambiguous.

5 Construction 5.1 Execution
2 During the execution and installation of materials, accessories andconstruction products in the indoor, proper
techniques are used to not worsen the water supply.
5.1.1.1 General conditions
1The implementation of pipe networks shall be such as to achieve theobjectives of the project without damaging or
spoiling the rest of the building, while preserving the characteristics of the supply water from its potability, avoiding noise,
providing the conditionsnecessary for extend durability of the building service and the best conditions for its
maintenance and upkeep.
Incompatibility of materials
• Avoid the pipe coupling and metal elements with...