BS EN 752-3-1997
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ID： |
E32C4877D7044D7887DEB42DDE6D26B8 |
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文件大小(MB)： |
0.3 |
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页数： |
34 |
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日期： |
2013-6-23 |
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文本摘录（文本识别可能有误，但文件阅览显示及打印正常，pdf文件可进行文字搜索定位）：
BRITISH STANDARD BS EN,752-3:1997,Incorporating,Amendments Nos. 1,and 2,Drain and sewer,systems outside,buildings —,Part 3: Planning,The European Standard EN 752-3:1996 has the status of a,British Standard,ICS 93.030,NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW,BS EN 752-3:1997,This British Standard, having,been 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 March 1997,. BSI 01-2001,The following BSI references,relate to the work on this,standard:,Committee reference B/505/22,Drafts for comment 92/14708 DC,and 95/105617 DC,ISBN 0 580 26782 2,Committees responsible for this,British Standard,The preparation of this British Standard was entrusted by Technical,Committee B/505, Wastewater engineering, to Subcommittee B/505/22,Drainage systems outside buildings, upon which the following bodies were,represented:,Association of Consulting Engineers,British Plastics Federation,Clay Pipe Development Association Ltd.,Concrete Pipe Association,Department of the Environment,Department of the Environment (Property and Buildings Directorate),Fibre Cement Manufacturers’ Association,Institute of British Foundrymen,Institution of Civil Engineers,Institution of Water and Environmental Management,METCOM,Water Services Association of England and Wales,The following bodies were also represented in the drafting of the standard,through panels.,Association of Building Engineers,British Pump Manufacturers’ Association,Institute of Building Control,Institute of Plumbing,Amendments issued since publication,Amd. No. Date Comments,10984 October,2000,National annex NB updated;,National foreword updated.,13038 January,2001,Correction to typographical errors,BS EN 752-3:1997,. BSI 01-2001 i,Contents,Page,Committees responsible Inside front cover,National foreword ii,Foreword 2,Text of EN 752-3 3,National annex NA (informative) Materials selection 19,National annex NB (informative) Access to drains and sewers 22,Table NA.1 — Materials and products commonly used in sewerage,construction 20,Table NB.1 — Maximum spacing of access provision 22,Table NB.2 — Minimum dimensions for rodding eyes, access fittings,inspection chambers and manholes 24,Table NB.3 — Recommended dimensions for manholes and manhole shafts,(personnnel entry) 25,--``,,,,```,`,`,,``,,``,`,``,,`-`-`,,`,,`,`,,`---,BS EN 752-3:1997,ii . BSI 01-2001,National foreword,This Part of BS EN 752 has been prepared by Subcommittee B/505/22 and is the,English language version of EN 752-3:1996, Drain and sewer systems outside,buildings — Part 3: Planning, published by the European Committee for,Standardization (CEN).,This part was published as a result of international discussion and agreement in,which the UK took an active part. It will be followed in due course by,Parts 4 to 7, as listed in the foreword.,The British Standards BS 8005 and BS 8301 are valid for reference at the time of,publication of this part, but they will be replaced by National annexes showing,UK practice published with the relevant parts of BS EN 752. When all seven,parts of BS EN 752 are published, BS 8005 and BS 8301 will be withdrawn in,their entirety.,Amendment No. 1 updates the text of National annex NB. This National annex,was based on traditional practice as described in BS 8301 and BS 8005 (standards,which are now obsolete). It has been revised to take account of developments in,the way drains and sewers are maintained and changes in health and safety,legislation; it is therefore the percursor of amendments to British Standards,specifying requirements for manholes and inspection chambers. An explanation,of the changes follows:,Access fittings are commonly used in building drainage but not in sewerage.,Therefore a description has been added.,Editorial changes have been made to improve clarity.,Health and safety legislation requires that manual entry to drain and sewer,systems is only undertaken where no alternative exits. Therefore use of remotely,operated equipment will become the norm and advantage has been taken of its,flexibility to reduce the cost of provision of access facilities.,As well as the traditional inspection chambers used for depths of up to 1.0 m,remotely operated equipment is available for inspection, cleaning and removal of,debris from deeper drains and sewers, without the need for personal entry.,Therefore inspection chambers can be used on any depth of drain (subject to the,type of equipment to be used). However, to deter personnel entry, a maximum,operating size is stated for deep inspection chambers.,Dimension……
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