EN 14801:2006

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
5 Conditions
  5.1 General
  5.2 Constant parameters
      5.2.1 General
      5.2.2 Design life
      5.2.3 Temperature
      5.2.4 Negative pressure
      5.2.5 Unit weight of soil
      5.2.6 Native soil
  5.3 Variable parameters
      5.3.1 General
      5.3.2 Loading parameters
      5.3.3 Installation parameters
  5.4 Combined conditions
6 Determination of allowable pressures PFA, PMA, PEA
  6.1 General
  6.2 Allowable pressures
      6.2.1 Allowable operating pressure
      6.2.2 Allowable maximum operating pressure
      6.2.3 Allowable site test pressure
  6.3 Methods for the determination of allowable pressures
  6.4 Procedure for the determination of allowable pressures
Annex A (informative) Considerations regarding longitudinal
        effects
      A.1 Longitudinal effects
          A.1.1 General
          A.1.2 Failure behaviour due to longitudinal effects
          A.1.3 Failure modes
          A.1.4 Longitudinal effects
Annex B (normative) Uniform classification of soils
Annex C (informative) Application example
Annex D (informative) Information on the relationship between
        type of compaction and construction procedures
Annex E (informative) Information regarding bedding reaction
        angle
National annex NA (informative) Implementing the pressure
                  classifications
Bibliography

This document applies to components (pipes, joints, fittings, ferrules and valves), which have pressure related classification in European Standards covering products which are intended to be used for buried water supply and waste water pressure pipelines outside buildings. It specifies combinations of loading conditions and installation conditions to be used in the design method by reference to the relevant product standard for the determination of the allowable pressures (PFA, PMA and PEA) as defined in EN 805.This document does not apply as an installation guide.NOTE 1This document does not give the full range of installation and loading parameters for all components and does not specify calculation and/or test methods for determination of the allowable pressures.NOTE 2This document does not relieve designers of their obligation under EN 805:2000, 8.4; e.g. to consider all conditions not addressed in clause 5 (e. g. seismic loads).NOTE 3This document does not deal with marking of components.