BS-EN-752-4-1998.pdf
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1、BRITISH STANDARD BS EN 752-4:1998 Incorporating Corrigendum No. 1 Drain and sewer systems outside buildings Part 4: Hydraulic design and environmental considerations The European Standard EN 752-4:1997 has the status of a British Standard ICS 93.030 ? BS EN 752-4:1998 This British Standard, having b
2、een prepared under the direction of the Sector Board for Building and Civil Engineering, was published under the authority of the Standards Board and comes into effect on 15 June 1998 BSI 16 February 2005 ISBN 0 580 29361 0 National foreword This British Standard is the official English language ver
3、sion of EN 752-4:1997. It supersedes the following standards, which have been declared obsolescent and which will be withdrawn in due course: BS 8005-1:1987, BS 8005-2:1987, BS 8005-3:1989, BS 8005-4:1987, BS 8005-5:1990, BS 8301:1985. The UK participation in its preparation was entrusted by Technic
4、al Committee B/505, Wastewater engineering, to Subcommittee B/505/22, Drain and sewer systems outside buildings, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Guidance on aspects of UK practice, and additional i
5、nformation on hydraulic design, is given in National annex NA to National annex NI of this standard. Cross-references The British Standards which implement international publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Co
6、rrespondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does n
7、ot of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promu
8、lgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 63 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No.DateCom
9、ments 15442 Corrigendum No. 1 16 February 2005ND.2.2 amended and Figure ND.1, Figure ND.2, Figure ND.3, Figure ND.4 and Figure ND.5 inserted EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 752-4 September 1997 ICS 13.060.30 Descriptors: Sanitation, water removal, sewage, water pipelines, buildi
10、ngs, exterior, design, hydraulic properties, computation, environments, environmental protection English version Drain and sewer systems outside buildings Part 4: Hydraulic design and environmental considerations Rseaux dvacuation et dassainissement lextrieur des btiments Partie 4: Conception hydrau
11、lique et considrations lies lenvironnement Entwsserungssysteme auerhalb von Gebuden Teil 4: Hydraulische Berechnung und Umweltschutzaspekte This European Standard was approved by CEN on 1997-08-23. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditio
12、ns 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 Central Secretariat or to any CEN member. This European Standard exists in three off
13、icial 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 Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria,
14、 Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Sec
15、retariat: rue de Stassart 36, B-1050 Brussels 1997 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 752-4:1997 E EN 752-4:1997 BSI 16 February 2005 2 Foreword This European Standard has been prepared by Technical Committee CEN/TC 16
16、5, Wastewater engineering, the secretariat of which is held by DIN. This part is the fourth in a series relating to the functional requirements of drain and sewer systems outside buildings that operate essentially under gravity. There will be seven parts, as follows: Drain and sewer systems outside
17、buildings Part 1: Generalities and definitions; Part 2: Performance requirements; Part 3: Planning; Part 4: Hydraulic design and environmental considerations; Part 5: Rehabilitation; Part 6: Pumping installations; Part 7: Operations and maintenance. In drafting this part of this European Standard, a
18、ccount has been taken of other available draft standards, in particular EN 476 General requirements for components used in discharge pipes, drains and sewers for gravity systems. This European Standard shall be given the status of a national standard, either by publication of an identical text or by
19、 endorsement, at the latest by March 1998, and conflicting national standards shall be withdrawn at the latest by March 1998. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Bel
20、gium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword2 1Scope3 2Normative references3 3Definitions3 4Sources of additional information4 5Protection
21、 from surcharge and flooding4 6Protection from pollution4 7Protection from septicity5 8Self-cleansing velocities5 9Hydraulic calculations6 10Wastewater design flows8 11Surface water and combined drain and sewer design flows9 12Environmental considerations10 Annex A (informative) Sources of additiona
22、l information13 Annex B (informative) Hydraulic design data25 Annex C (informative) Calculation of wastewater flows for drain systems26 Annex D (informative) Selection of flow simulation method27 Annex E (informative) Bibliography28 EN 752-4:1997 BSI 16 February 2005 3 1 Scope This European Standard
23、 is applicable to drain and sewer systems, which operate essentially under gravity, from the point where the sewage leaves a building or roof drainage system, or enters a road gully, to the point where it is discharged into a treatment works or receiving water. Drains and sewers below buildings are
24、included provided that they do not form part of the drainage system of the building. This part sets out the principles which shall be followed for both the hydraulic design and consideration of environmental impact of drain and sewer systems that operate essentially under gravity. 2 Normative refere
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