EN 476:2011
(Main)General requirements for components used in drains and sewers
General requirements for components used in drains and sewers
This European Standard specifies general requirements for components inside and outside buildings (see EN 12056-1) such as pipes, fittings and manholes with their respective joints intended for use in discharge pipes, drains and sewers which operate as gravity systems allowing for a maximum pressure of 40 kPa.
It also specifies general requirements for components used in hydraulically and pneumatically pressurised discharge pipes, drains and sewers.
It provides basic specifications to be respected in material related product standards for these applications.
It is not applicable for the direct evaluation of products. It is applicable as a reference for drawing up a product specification, if there is no product standard available.
NOTE Where the term "inside buildings" is used in the context of components fixed inside buildings, it also includes discharge pipes and fittings fixed on external surfaces of buildings.
This European Standard covers components to be used in conveying in a satisfactory manner:
- domestic wastewater;
- rainwater and surface water; and
- other waste waters acceptable for discharge into the system (e.g. industrial wastewater).
This European standard applies to components of circular and other cross sections.
This European Standard applies equally to components which are factory-made and to those constructed on site, where applicable.
This European Standard does not apply to components used for trenchless construction according to EN 14457 and for components used for renovation of drains and sewers according to EN 13380.
Allgemeine Anforderungen an Bauteile für Abwasserleitungen und -kanäle
Diese Europäische Norm legt allgemeine Anforderungen an Bauteile innerhalb und außerhalb von Gebäuden (siehe EN 12056-1), wie Rohre, Formstücke und Einsteigschächte mit ihren jeweiligen Verbindungen fest, die für Abwasserleitungen und -kanäle bestimmt sind und die als Schwerkraftentwässerungssysteme (Freispiegelsystem) mit maximal 40 kPa betrieben werden. Sie legt ebenfalls allgemeine Anforderungen an Bauteile für hydraulisch und pneumatisch betriebene Abwasserdruckrohre, -leitungen und -kanäle fest. Sie enthält grundlegende Festlegungen, die für diese Anwendungen in den werkstoffbezogenen Produktnormen zu berücksichtigen sind. Sie ist nicht anwendbar zur direkten Beurteilung von Produkten. Sie ist als Referenz zur Erstellung einer Produktspezifikation anwendbar, sofern keine Produktnorm zur Verfügung steht.
ANMERKUNG Wird der Begriff „innerhalb von Gebäuden“ in Verbindung mit Bauteilen verwendet, die innerhalb des Gebäudes befestigt sind, schließt das auch an den Außenflächen der Gebäude befestigte Abwasserleitungen und Formstücke mit ein.
Diese Europäische Norm behandelt Bauteile, die in zufriedenstellender Weise eingesetzt werden, um
- häusliche Abwässer;
- Regen- und Oberflächenwasser; sowie
- weitere Abwässer (z. B. industrielles Abwasser), die zur Ableitung in das System zulässig sind, abzuleiten.
Diese Europäische Norm gilt für Bauteile mit kreisförmigem Querschnitt sowie weiteren Querschnitten. Diese Europäische Norm gilt gleichermaßen für werkseitig und, soweit zutreffend, für vor Ort hergestellte Bauteile. Diese Europäische Norm ist nicht auf Bauteile anwendbar, die bei grabenlosem Einbau nach EN 14457 verwendet werden und nicht für Bauteile, die für die Renovierung von Abwasserleitungen und -kanälen nach EN 13380 eingesetzt werden.
Exigences générales pour les composants utilisés pour les branchements et les collecteurs d'assainissement
La présente Norme européenne spécifie les exigences générales applicables aux composants à l'intérieur et
à l'extérieur des bâtiments (voir EN 12056-1), tels que les tuyaux, les raccords et les regards avec leurs
assemblages respectifs, destinés à être utilisés dans les canalisations d’évacuation, les branchements et les
collecteurs fonctionnant comme des réseaux à écoulement libre permettant d’admettre une pression
maximale de 40 kPa.
Elle spécifie également les exigences générales applicables aux composants utilisés dans les canalisations
d'évacuation, les branchements et les collecteurs fonctionnant sous pression hydraulique et pneumatique.
La présente norme fournit des spécifications de base à respecter dans les normes de produits associées aux
matériaux employés pour ces applications.
Elle n'est pas applicable à l'évaluation directe des produits, mais sert de référence pour l'élaboration d'une
spécification de produit lorsqu’aucune norme de produit n'est disponible.
NOTE L’expression « à l’intérieur des bâtiments » est employée dans le contexte des composants fixés à l’intérieur
des bâtiments et inclut également les canalisations d’évacuation et les raccords fixés aux surfaces extérieures des
bâtiments.
La présente Norme européenne traite des composants à utiliser pour transporter de manière satisfaisante :
- les eaux usées domestiques ;
- les eaux pluviales et les eaux de surface ; et
- d'autres eaux usées dont l'évacuation dans le réseau est acceptable (par exemple eaux usées
industrielles).
La présente Norme européenne s’applique aux composants de section circulaire ou non.
La présente Norme européenne s’applique de la même façon aux composants qui sont préfabriqués et aux
composants construits in situ, le cas échéant.
Splošne zahteve za elemente za odvod odpadne vode in kanalizacijo
Ta evropski standard določa splošne zahteve za elemente, kot so cevi, fitingi in vstopne odprtine z ustreznimi spoji, ki se uporabljajo pri odtočnih ceveh, vodih in kanalih (rezultat združitve EN 476, EN 773 in EN 1293).
General Information
Relations
Frequently Asked Questions
EN 476:2011 is a standard published by the European Committee for Standardization (CEN). Its full title is "General requirements for components used in drains and sewers". This standard covers: This European Standard specifies general requirements for components inside and outside buildings (see EN 12056-1) such as pipes, fittings and manholes with their respective joints intended for use in discharge pipes, drains and sewers which operate as gravity systems allowing for a maximum pressure of 40 kPa. It also specifies general requirements for components used in hydraulically and pneumatically pressurised discharge pipes, drains and sewers. It provides basic specifications to be respected in material related product standards for these applications. It is not applicable for the direct evaluation of products. It is applicable as a reference for drawing up a product specification, if there is no product standard available. NOTE Where the term "inside buildings" is used in the context of components fixed inside buildings, it also includes discharge pipes and fittings fixed on external surfaces of buildings. This European Standard covers components to be used in conveying in a satisfactory manner: - domestic wastewater; - rainwater and surface water; and - other waste waters acceptable for discharge into the system (e.g. industrial wastewater). This European standard applies to components of circular and other cross sections. This European Standard applies equally to components which are factory-made and to those constructed on site, where applicable. This European Standard does not apply to components used for trenchless construction according to EN 14457 and for components used for renovation of drains and sewers according to EN 13380.
This European Standard specifies general requirements for components inside and outside buildings (see EN 12056-1) such as pipes, fittings and manholes with their respective joints intended for use in discharge pipes, drains and sewers which operate as gravity systems allowing for a maximum pressure of 40 kPa. It also specifies general requirements for components used in hydraulically and pneumatically pressurised discharge pipes, drains and sewers. It provides basic specifications to be respected in material related product standards for these applications. It is not applicable for the direct evaluation of products. It is applicable as a reference for drawing up a product specification, if there is no product standard available. NOTE Where the term "inside buildings" is used in the context of components fixed inside buildings, it also includes discharge pipes and fittings fixed on external surfaces of buildings. This European Standard covers components to be used in conveying in a satisfactory manner: - domestic wastewater; - rainwater and surface water; and - other waste waters acceptable for discharge into the system (e.g. industrial wastewater). This European standard applies to components of circular and other cross sections. This European Standard applies equally to components which are factory-made and to those constructed on site, where applicable. This European Standard does not apply to components used for trenchless construction according to EN 14457 and for components used for renovation of drains and sewers according to EN 13380.
EN 476:2011 is classified under the following ICS (International Classification for Standards) categories: 93.030 - External sewage systems. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 476:2011 has the following relationships with other standards: It is inter standard links to EN 476:1997, EN 1293:1999, EN 773:1999, EN 476:2022. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase EN 476:2011 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-november-2011
1DGRPHãþD
SIST EN 1293:2000
SIST EN 476:1997
SIST EN 773:2000
Splošne zahteve za elemente za odvod odpadne vode in kanalizacijo
General requirements for components used in drains and sewers
Allgemeine Anforderungen an Bauteile für Abwasserleitungen und -kanäle
Prescriptions générales pour les composants utilisés dans les branchements et les
collecteurs d'assainissement
Ta slovenski standard je istoveten z: EN 476:2011
ICS:
13.060.30 Odpadna voda Sewage water
93.030 Zunanji sistemi za odpadno External sewage systems
vodo
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 476
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2011
ICS 93.030 Supersedes EN 1293:1999, EN 476:1997, EN 773:1999
English Version
General requirements for components used in drains and
sewers
Exigences générales pour les composants utilisés pour les Allgemeine Anforderungen an Bauteile für
branchements et les collecteurs d'assainissement Abwasserleitungen und -kanäle
This European Standard was approved by CEN on 23 November 2010.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same
status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 476:2011: E
worldwide for CEN national Members.
Contents Page
Foreword .4
1 Scope .5
2 Normative references .5
3 Terms and definitions .6
4 Symbols and abbreviations .9
5 Dimensional requirements .9
5.1 General .9
5.2 Dimensions of pipes and fittings .9
5.2.1 Nominal sizes .9
5.2.2 Internal diameters and tolerances . 10
5.2.3 Geometrical characteristics of pipes . 10
5.2.4 Geometrical characteristics of fittings . 11
5.3 Dimensions of manholes and inspection chambers. 12
5.3.1 General . 12
5.3.2 Manholes with access for cleaning and inspection by personnel . 12
5.3.3 Manholes with access for cleaning and inspection by personnel in only exceptional
circumstances . 12
5.3.4 Inspection chambers . 13
5.4 Interconnection . 13
6 Performance requirements . 14
6.1 Mechanical resistance of pipes and fittings . 14
6.1.1 Mechanical strength of pipes and fittings in the cross section . 14
6.1.2 Longitudinal bending moment resistance . 15
6.2 Mechanical resistance of manholes, shafts and inspection chambers above the base unit . 15
6.2.1 General . 15
6.2.2 Circular sections . 15
6.2.3 Other shapes . 15
6.2.4 Tapers, reducing and cover slabs. 15
6.3 Tightness . 16
6.3.1 Maximum internal test pressure . 16
6.3.2 Seals for joints . 17
6.3.3 Rigid joints . 17
6.3.4 Joint deflection . 17
6.3.5 Joint shear load . 18
6.3.6 Restrained joints . 18
6.4 Continuity of invert . 18
6.5 Temperature . 18
6.6 Dimensional stability . 19
6.7 Smoothness of bore . 19
6.8 Appearance . 19
6.9 Corrosion resistance . 19
6.10 Abrasion resistance . 19
6.11 Coatings and linings . 19
6.12 Long-term behaviour . 19
6.13 Durability . 20
6.14 Sealing elements. 20
6.15 Resistance against cleaning operations . 20
6.16 Handling . 20
7 Test methods . 20
7.1 Measurement of dimensions . 20
7.1.1 Mean internal diameter of barrels . 20
7.1.2 Mean external diameter of barrels . 20
7.1.3 Spigots and sockets . 20
7.1.4 Wall thickness of barrels . 20
7.1.5 Deviation from straightness of barrels . 21
7.1.6 Deviation from squareness of the ends of the pipes . 21
7.2 Load bearing capacity tests . 21
7.2.1 Load bearing capacity tests for pipes . 21
7.2.2 Load bearing capacity tests for sections of manholes and shafts . 22
7.3 Longitudinal bending moment resistance test for pipes . 22
7.4 Tightness tests . 22
7.4.1 Tightness test of pipes, fittings, manholes and inspection chambers . 22
7.4.2 Tightness test of joints . 24
7.4.3 Test methods for discharge components for use inside buildings . 24
8 Marking, labelling and packaging . 25
Bibliography . 26
Foreword
This document (EN 476:2011) has been prepared by Technical Committee CEN/TC 165 “Waste water
engineering”, the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by July 2011, and conflicting national standards shall be withdrawn at the
latest by July 2011.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 476:1997, EN 773:1999 and EN 1293:1999.
The specifications of this standard have been based on the requirements for wastewater systems specified in
EN 752 and EN 12056.
This document is the result of merging EN 476, EN 773 and EN 1293.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
1 Scope
This European Standard specifies general requirements for components inside and outside buildings (see
EN 12056-1) such as pipes, fittings and manholes with their respective joints intended for use in discharge
pipes, drains and sewers which operate as gravity systems allowing for a maximum pressure of 40 kPa.
It also specifies general requirements for components used in hydraulically and pneumatically pressurised
discharge pipes, drains and sewers.
It provides basic specifications to be respected in material related product standards for these applications.
It is not applicable for the direct evaluation of products. It is applicable as a reference for drawing up a product
specification, if there is no product standard available.
NOTE Where the term "inside buildings" is used in the context of components fixed inside buildings, it also includes
discharge pipes and fittings fixed on external surfaces of buildings.
This European Standard covers components to be used in conveying in a satisfactory manner:
domestic wastewater;
rainwater and surface water; and
other waste waters acceptable for discharge into the system (e.g. industrial wastewater).
This European Standard applies to components of circular and other cross sections.
This European Standard applies equally to components which are factory-made and to those constructed on
site, where applicable.
This European Standard does not apply to components used for trenchless construction according to
EN 14457 and for components used for renovation of drains and sewers according to EN 13380.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
EN 124, Gully tops and manhole tops for vehicular and pedestrian areas — Design requirements, type testing,
marking, quality control
EN 681-1, Elastomeric seals — Materials requirements for pipe joint seals used in water and drainage
applications — Part 1: Vulcanized rubber
EN 681-2, Elastomeric Seals — Materials requirements for pipe joint seals used in water and drainage
applications — Part 2: Thermoplastic elastomers
EN 681-3, Elastomeric seals — Materials requirements for pipe joint seals used in water and drainage
applications — Part 3: Cellular materials of vulcanized rubber
EN 681-4, Elastomeric seals — Materials requirements for pipe joint seals used in water and drainage
applications — Part 4: Cast polyurethane sealing elements
EN 805:2000, Water supply — Requirements for systems and components outside buildings
EN 1085:2007, Wastewater treatment — Vocabulary
EN 13101, Steps for underground man entry chambers — Requirements, marking, testing and evaluation of
conformity
EN 14396, Fixed ladders for manholes
EN 14801, Conditions for pressure classification of products for water and wastewater pipelines
ISO 48, Rubber, vulcanized or thermoplastic Determination of hardness (hardness between 10 IRHD and
100 IRHD)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 1085:2007 and EN 805:2000 and the
following apply.
3.1
hydraulically pressurised system
system where flow is caused by hydraulic pressure and where the pipe normally operates full
3.2
pneumatically pressurized system
system where flow is caused by pneumatic pressure which can be applied either as compressed air upstream
or partial vacuum downstream and where the pipe normally operates full
3.3
nominal size
DN
numerical designation of size of component, which is a convenient integer approximately equal to a
manufacturing dimension in millimetres and can apply to either the internal diameter (DN/ID) or the external
diameter (DN/OD)
NOTE DN/OD pipes with solid or hollow spiral or annular profiled external surface and outside smooth spigot jointing
dimensions, and with larger OD than the spigot may be designated by the spigot dimension.
3.4
external diameter
OD
mean external dimension of the pipe barrel at any cross section where for pipes with external profiles on the
barrels, the external diameter is the maximum diameter when viewed in cross section
3.5
internal diameter
ID
mean internal dimension of the pipe barrel at any cross section
3.6
pipe barrel
cylindrical part of the pipe with a uniform longitudinal profile excluding socket and spigot
3.7
invert
lowest point of the internal surface of the barrel of a pipe or channel at any cross section
3.8
rigid pipe
pipe, the load carrying capacity of which is limited by breaking or overstressing, without significant deformation
of its cross section
3.9
semi-rigid pipe
pipe whose load carrying capacity is limited either by deformation/overstressing (flexible behaviour) or by
breaking (rigid behaviour) depending on its ring stiffness
3.10
flexible pipe
pipe, the load carrying capacity of which is limited by diametral deformation under load to the ultimate design
criteria without breaking or overstressing
3.11
joint
connection between the adjacent ends of two components including the means of sealing
3.12
adjustable fitting
fitting which is designed to permit specific angular deflection at the time of installation (for pressurized and
vacuum systems)
3.13
adjustable joint
joint which permits significant angular deflection at the time of installation but not thereafter
3.14
flexible joint
joint which permits angular deflection
3.15
rigid joint
joint that does not permit angular deflection
3.16
restrained joint
joint in which a means is provided to prevent separation
3.17
proof load
specified test load which a component withstands where the related requirements of the product standard are
met
3.18
ultimate load
load which causes failure of a component (under test) which shall be as specified in product standards
3.19
crushing strength
load per unit length a rigid pipe is required to withstand in kN/m
3.20
ring stiffness
resistance of a pipe to diametral deflection in response to external loading applied along one diametric plane
given as follows:
E ⋅ I
S =
D
m
3.21
manhole
chamber with a removable cover constructed on a drain or sewer to permit entry by personnel
[EN 752:2008, 3.41]
NOTE Examples are given in Figure 1.
Key
1 adjusting unit 5 reducing slab
2 base unit 6 shaft unit
3 cover slab 7 taper
4 chamber unit
NOTE 1 Joint details have been omitted for clarity
NOTE 2 Precast base slabs of structures can be integral with the base unit or a separate slab incorporating
construction joints.
Figure 1 — Description of manhole and inspection chamber components
3.22
inspection chamber
chamber with a removable cover constructed on a drain or sewer that permits the introduction of cleaning and
inspection equipment from surface level, but does not provide access for personnel
[EN 752:2008, 3.34]
4 Symbols and abbreviations
DN/ID nominal size related to the internal diameter
DN/OD nominal size related to the external diameter
PFA allowable operating pressure [EN 805:2000]
PMA allowable maximum operating pressure [EN 805:2000]
PEA allowable site test pressure [EN 805:2000]
D diameter of the neutral axis of the pipe wall, in metres
m
E modulus of elasticity in flexure in the circumferential direction in kilonewtons per square metre
I second moment of area of the pipe wall in the longitudinal direction, per unit length, in metres to the
fourth power per metre
S the ring stiffness of the pipe in kilonewtons per square metre
r radius for bends
α angle of bends
β angle of branches
5 Dimensional requirements
5.1 General
Product standards may include specifications which are more stringent, but not less stringent than those in
this standard.
5.2 Dimensions of pipes and fittings
5.2.1 Nominal sizes
Nominal sizes DN shall be given in product standards as DN/ID or DN/OD and shall preferably be selected
from Table 1 or Table 2 for reasons of interchangeability. Other nominal sizes can be specified in product
standards.
Table 1 — Preferred nominal sizes DN/ID
Gravity systems Hydraulically pressurized systems Pneumatically pressurized
systems
DN/ID DN/ID DN/ID
30, 40, 50, 60, 70, 80, 90, 100, 125, 20, 25, 30, 40, 50, 60, 80, 100, 125, 150, 30, 40, 50, 60, 80, 100, 125, 150,
150, 200, 225, 250, 300, 350, 375, 200, 250, 300, 350, 400, 450, 500, 600, 200
400, 450, 500, 600, 700, 800, 900, 700, 800, 900, 1 000, 1 100, 1 200,
1 000, 1 200, 1 250, 1 400, 1 500 1 250, 1 300, 1 400, 1 500, 1 600, 1 800,
1 600, 1 800, 2 000, 2 200, 2 500, 2 000, 2 100, 2 200, 2 400, 2 500, 2 600,
2 800, 3 000, 3 500, 4 000 2 800, 3 000, 3 200, 3 500, 4 000
NOTE For each material, it is intended to limit the number of nominal sizes.
Table 2 — Preferred nominal sizes DN/OD
Gravity systems Hydraulically pressurized Pneumatically pressurized
systems systems
DN/OD DN/OD DN/OD
32, 40, 50, 63, 75, 90, 100, 110, 22, 25, 28, 32, 40, 50, 63, 75,90, 32, 40, 50, 63, 75, 90, 100, 110,
125, 160, 200, 250, 315, 400, 500, 100, 110, 125, 140, 160, 180, 200, 125, 140, 160, 180, 200
630, 800, 1 000, 1 200, 1 400, 225, 250, 280, 315, 355, 400, 450,
1 600, 1 800, 2 000 500, 560, 630, 710, 800, 900,
1 000
NOTE For each material, it is intended to limit the number of nominal sizes.
For non circular cross sections dimensions can be specified in product standards.
5.2.2 Internal diameters and tolerances
Product standards shall specify:
internal diameters and tolerances; or
external diameters, wall thicknesses and tolerances; or
minimum internal diameter.
Maximum tolerances on the internal diameter ID are listed in Table 3.
Table 3 — Maximum tolerances on internal diameters
Nominal size Gravity, hydraulically and pneumatically pressurized
systems
Tolerances on mean internal Tolerances on individual
diameter internal diameter
mm mm
± 0,05 × DN ± 0,1 × DN
DN ≤ 100
± 5 ± 10
100 < DN ≤ 250
250 < DN ≤ 600 ± 0,02 × DN ± 0,04 × DN
DN > 600 ± 15 ± 30
NOTE DN can be applied to either DN/ID or DN/OD.
5.2.3 Geometrical characteristics of pipes
Pipe straightness shall be within tolerances specified in product standards (see 7.1.5).
Pipes for pressurised systems may also be delivered in coils. Product standards shall specify the minimum
radius of the coils instead of straightness.
The angle between the planes of the end faces of the pipe and the relevant axis shall be 90° with a tolerance
such that the function of the pipe joint shall not be impaired (see 7.1.6).
A range of pipe lengths can be specified in product standards.
Product standards shall specify tolerances on pipe lengths, even if the lengths themselves are not specified.
For pressurised systems, tolerances on the wall thickness shall be specified in product standards.
5.2.4 Geometrical characteristics of fittings
5.2.4.1 General
Angles of fittings shall be specified in the product standards. Where applicable, tolerances on angles shall be
specified in product standards.
5.2.4.2 Bends
Angles α for bends (see Figure 2) shall be specified in product standards. Angles α should preferably be
selected from 11°15', 15°, 20° to 22°30', 30°, 45°, 60° 67° to 70° and 87° to 90°. Other angles α may be
specified in product standards.
NOTE Radii r for bends (e.g. swept and unswept) should be specified in product standards.
Key
r radius of bend
α angle of bend
Figure 2— Illustrations of angle αααα and radius of bends r
5.2.4.3 Branches
Angles β for branches (see Figure 3) specified in product standards should preferably be selected from 45°,
60° to 70° or 87° to 90°.
Key
β angle of branches
Figure 3 — Illustrations of angle ββββ of branches
5.3 Dimensions of manholes and inspection chambers
5.3.1 General
Dimensions of manholes with access for personnel shall comply with the safety requirements in force at the
place of installation. In the absence of local regulations the diameter of the clear opening of the manhole cover
according to EN 124 shall be ≥ 600 mm (see Figure 4). For manholes where steps or ladders are integrated
during production, the load requirements and test methods shall be specified in accordance with EN 13101 or
EN 14396 respectively.
5.3.2 Manholes with access for cleaning and inspection by personnel
Manholes for all maintenance works with access for personnel shall have internal diameter (ID) and
dimensions according to Figures 4 a) and b), or a nominal size for rectangular sections of
750 mm × 1 200 mm or greater or square sections of 1 000 mm × 1 000 mm or greater, or a nominal size for
elliptical sections of 900 mm × 1 100 mm or greater.
NOTE National or local regulations or the relevant authority can specify larger minimum dimensions e.g. for the
access.
5.3.3 Manholes with access for cleaning and inspection by personnel in only exceptional
circumstances
Manholes for the introduction of cleaning equipment, inspection and test equipment with exceptional
possibility of access for a man equipped with a harness, shall have internal diameter (ID) and dimensions
according to Figure 4 c) or a nominal size for rectangular sections of 750 mm × 1 000 mm or greater or square
sections of 800 mm × 800 mm or greater, or a nominal size for elliptical sections of 800 mm × 1 000 mm or
greater.
NOTE National or local regulations or the relevant authority can specify larger m
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SIST EN 476:2011の標準は、排水と下水道に使用される部品に関する一般要件を定めたものです。この標準の範囲は、建物の内外に使用される管、継手、マンホールなどの部品に関連しており、重力システムとして機能する排水管、排水路、および下水道用の接合部を含んでいます。最大圧力は40 kPaで設計されています。 この標準の強みは、家庭用廃水、雨水、表面水、及びシステムに排出可能な他の廃水（工業用廃水を含む）を効率的に輸送するための部品の一般的な要件を明確にしている点にあります。また、円形およびその他の断面を持つ部品に適用され、工場製造された部品にも現場で構築された部品にも適用可能です。 さらに、SIST EN 476:2011は、製品標準が存在しない場合に製品仕様を策定するための参考として利用できることが特徴です。これにより、業界における一貫した製品仕様の策定が促進され、標準化が図られます。ただし、製品の直接評価には適用されません。 重要な点として、建物内部に固定された部品に関連する際の「建物内部」という用語は、建物の外部表面に固定された排水管や継手も含むことに留意すべきです。このように、SIST EN 476:2011は、さまざまな用途において関連性が高く、実用的な基準を提供しています。 全体として、この標準は、排水および下水道システムの安全性と効率を確保するための基礎を提供しており、建設業界及び関連分野での広範な適用性を持っています。標準化により、製品の品質向上と業界のベストプラクティスに対する整合性を推進するため、非常に重要な役割を果たしています。
표준 문서 SIST EN 476:2011은 배수 및 하수도에 사용되는 구성 요소에 대한 일반 요구사항을 규명하고 있으며, 특히 건물 내외부에서 사용되는 파이프, 실링 및 맨홀과 같은 구성 요소에 대한 포괄적인 지침을 제공합니다. 이 표준의 범위는 중력 시스템에서 작동하는 배수 파이프와 하수도에서 사용되는 구성 요소의 요구 사항을 포함하며, 최대 압력 40 kPa를 허용합니다. 이 표준의 강점은 배수 및 하수도 응용 분야에서의 구성 요소에 대한 기본 사양을 제시함으로써, 해당 재료 관련 제품 표준을 준수해야 하는 필수 기준을 설정하고 있다는 점입니다. 이는 특히 제품 표준이 없을 경우, 제품 사양을 작성할 때 참고 자료로서의 유용성을 제공합니다. 또한, 이 표준은 원형 및 기타 단면을 가진 구성 요소에도 적용 가능하여, 다양한 형태의 시스템 요구에 부합하는 유연성을 제공합니다. SIST EN 476:2011은 가정용 폐수, 빗물 및 표면수, 그리고 산업 폐수와 같은 다양한 종류의 폐수를 적절히 전달하는 구성 요소에 대해 다루고 있습니다. 여기서 중요한 점은 이 표준이 공장에서 제작된 구성 요소 및 현장에서 구축된 구성 요소 모두에 동일하게 적용된다는 것입니다. 하지만, 이 표준은 EN 14457에 따른 비굴착식 시공 구성 요소 및 EN 13380에 따라 하수도 및 배수의 재개발에 사용되는 구성 요소에는 적용되지 않음을 명확히 하고 있습니다. 결론적으로, SIST EN 476:2011 표준은 배수 및 하수도 시스템의 안전성과 효율성을 보장하기 위한 구성 요소에 대한 명확한 지침을 제공하며, 이에 따라 관련 산업의 요구와 규정 준수를 지원하는 중요한 기준으로 자리잡고 있습니다.
La norme SIST EN 476:2011 établit des exigences générales pour les composants utilisés dans les drains et les égouts, à la fois à l'intérieur et à l'extérieur des bâtiments. Son champ d'application est crucial car il englobe des éléments tels que les tuyaux, les raccords et les regards, ainsi que leurs joints, spécifiquement conçus pour les systèmes de drainage gravitaires qui supportent une pression maximale de 40 kPa. Cette caractéristique en fait une référence essentielle pour garantir la sécurité et l'efficacité des installations de drainage. Les points forts de cette norme résident dans sa capacité à fournir des spécifications de base pour la fabrication et l'évaluation des composants utilisés dans les systèmes de drainage domestiques, des eaux pluviales et d'autres types d'eaux usées. Sa portée inclut les composants de sections circulaires ainsi que d'autres formes, et s'applique à la fois aux produits fabriqués en usine et à ceux construits sur site. Cela garantit une flexibilité dans l'application des matériaux, répondant ainsi à diverses exigences de construction. La pertinence de la norme EN 476:2011 se manifeste également par sa fonction de référence pour l'établissement de spécifications produits lorsque des normes de produits spécifiques ne sont pas disponibles. Bien qu'elle ne s'applique pas à l'évaluation directe des produits, elle constitue un cadre solide pour assurer la conformité des composants utilisés dans le transport des eaux usées et autres eaux à décharge. En omettant les composants destinés aux techniques de construction sans tranchée ou à la rénovation des drains et égouts, la norme se concentre sur les applications les plus courantes et pertinentes. En résumé, la SIST EN 476:2011 est une norme exhaustive qui définit des exigences claires et concises pour les composants de drainage, offrant ainsi un gage de qualité et de sécurité dans le domaine des infrastructures de drainage et des égouts.
The EN 476:2011 standard provides a comprehensive framework for the general requirements of components used in drains and sewers, ensuring high operational reliability in both residential and commercial settings. Its scope is clearly defined, specifying that it applies to various components such as pipes, fittings, and manholes, essential for both gravity systems and pressurized systems within discharge pipes. One of the strengths of this standard is its inclusive approach, addressing components used inside and outside buildings, thus accommodating a wide range of applications. This feature enhances its relevance in urban planning and infrastructure development by facilitating the reliable handling of domestic wastewater, rainwater, surface water, and other acceptable wastewaters. Moreover, it caters to both factory-made and site-constructed components, which provides flexibility for manufacturers and builders alike. The EN 476:2011 also emphasizes the importance of basic specifications that must be upheld in material-related product standards, which serves to harmonize production quality across different manufacturers. This standard is particularly valuable as a reference document for drafting product specifications in scenarios where specific product standards are lacking, thereby enhancing the robustness of the construction and maintenance of drainage systems. By setting general requirements and parameters for manufacturing quality and performance, the EN 476:2011 standard ensures the integrity and longevity of drainage systems used in a variety of environments. However, it is important to note that this standard does not extend to evaluation processes for products, which may require additional specifications or standards for compliance verification. Additionally, the exclusion of components designed for trenchless construction and renovation aligns with the need to focus on conventional drainage techniques, ensuring that the standard remains pertinent to its intended scope without dilution. This singular focus contributes to the overall effectiveness of the guidelines, reinforcing their significance in the context of infrastructure resilience. In summary, EN 476:2011 is a vital standard that not only outlines specific requirements for drains and sewers but also supports the broader objectives of public health and safety by providing reliable guidelines in the construction, maintenance, and operation of these essential systems.
Die EN 476:2011 bietet umfassende Anforderungen für Komponenten, die in Abwasserleitungen und Kanalsystemen verwendet werden. Ihre Breite umfasst sowohl innen als auch außen liegende Bauteile, darunter Rohre, Fittings und Schächte, welche für Abflussrohre konzipiert sind, die in Schwerkraftsystemen funktionieren. Ein bemerkenswerter Stärke dieser Norm ist die klare Definition der maximalen Druckgrenze von 40 kPa, die sicherstellt, dass alle Komponenten den notwendigen Sicherheits- und Leistungsstandards entsprechen. Darüber hinaus enthält die Norm spezifische Anforderungen für hydraulisch und pneumatisch unter Druck stehende Systeme, was dessen Relevanz in modernen Anwendungen unterstreicht. Die EN 476:2011 stellt grundlegende Spezifikationen bereit, die in materialbezogenen Produktstandards für diese Anwendungen zu berücksichtigen sind. Dies ist besonders vorteilhaft für Hersteller und Planer, da es keine direkten Produktbewertungen erfordert, aber dennoch als wertvolle Referenz für die Erstellung von Produktspezifikationen dient, wenn keine spezifischen Produktstandards zur Verfügung stehen. Ein weiterer positiver Aspekt der Norm ist die Berücksichtigung einer Vielzahl von Abwassertypen, wie häusliches Abwasser, Regenwasser, Oberflächenwasser und akzeptable industrielle Abwässer. Dadurch wird sichergestellt, dass die Standards breit angelegt sind und für verschiedene Anwendungen geeignet sind. Die Norm gilt für runde und andere Querschnittsformen, was ihre Flexibilität erhöht und die Möglichkeit bietet, sowohl industriell gefertigte als auch vor Ort konstruierte Komponenten zu integrieren. Es ist erwähnenswert, dass die EN 476:2011 bestimmte Arten von Komponenten ausschließt, wie jene, die für grabenlose Bauweisen oder Renovierungen gemäß anderer EU-Normen gedacht sind. Dies fokussiert die Anwendung der Norm auf spezifische Bereiche und erhöht die Klarheit in der Definition, welche Komponenten wirklich abgedeckt sind. Insgesamt hat die EN 476:2011 eine zentrale Rolle in der Standardisierung von Abwassersystemen, indem sie hochrelevante Anforderungen formuliert, die die Qualität und Sicherheit der verwendeten Komponenten gewährleisten.
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