PREN 1949 : DRAFT 2009

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 General requirements
   4.1 Dynamic loads
   4.2 Tightness
        4.2.1 Requirements
        4.2.2 Test
5 Cylinder compartments
   5.1 General
   5.2 Cylinder compartments with internal access
   5.3 Cylinders secured outside the vehicle
   5.4 Ventilation for cylinder compartments
   5.5 Cylinder compartments with internal
        access and low capacity cylinders
   5.6 Requirements for the construction of
        cylinder compartments
   5.7 Electric equipment in cylinder compartments
6 Pressure regulation systems and working pressures
   6.1 Pressure regulation systems
   6.2 Marking of the working pressure
   6.3 Devices to protect against over-pressure
   6.4 Connection of pressure regulators to rigid
        pipework - Low pressure supply
   6.5 Connection of a dual cylinder system
   6.6 Connection of an external LPG supply by means
        of a plug-in connector
7 Components
   7.1 Hoses
   7.2 Pipes
   7.3 Pipe fittings
   7.4 Jointing materials
   7.5 Shut-off valves
   7.6 Consumer leak detection device
8 Installation design
   8.1 General
   8.2 Protection against mechanical damage
   8.3 Avoidance of corrosion
   8.4 Pipe sizing
   8.5 Pipe fittings
   8.6 Positioning of LPG pipes near to other services
   8.7 Fixing
   8.8 Shut-off valves
   8.9 Earthing of LPG pipes
9 Connection of appliances to the LPG supply installation
10 Appliances
   10.1 Suitability of appliances
   10.2 Installations
   10.3 Space heaters
        10.3.1 Space heating appliances in caravans,
               motor caravans and other road vehicles
        10.3.2 Space heating appliances in caravan
               holiday homes
   10.4 Water heaters
        10.4.1 Water heaters in caravans, motor
               caravans and other road vehicles
        10.4.2 Water heaters in caravan holiday homes
   10.5 Cooking appliances
   10.6 Refrigerators
   10.7 Gas lights
   10.8 LPG fuel cells
   10.9 LPG power generators
11 Flueing
   11.1 Flues
   11.2 Flue terminals
   11.3 Weather protection
   11.4 Draught diverters
   11.5 Accessibility of flues
12 Installation of LPG tanks supplying LPG appliances
   12.1 Requirements regarding the LPG tank and
        accessories
   12.2 Installation of the LPG tank and the components
        that are in contact with LPG in liquid phase
13 User's handbook
Annex A (informative) - National situations in the member
        states
Annex B (informative) - Countries where underfloor flue is
        not permitted
Bibliography

Describes the requirements for the installation of liquefied petroleum gas systems for habitation purposes in leisure accommodation vehicles and for accommodation purposes in other vehicles.