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1、a Date: 28 November 2008 Origin: National Latest date for receipt of comments: 31 JANUARY 2009 Project no.: 2005/02943 Responsible committee: B/504 Water supply Interested committees: B/505 Waste water engineering; FSH/17 Fire brigade equipment Title: Draft BS 5834-2: Surface boxes, guards+undergrou
2、nd chambers for utilities purposes Part 2: Specification for small surface boxes Supersession information: If this document is published as a standard, the UK implementation of it will supersede BS5834 PT2:1983 and BS5834-3:1985 (R07). If you are aware of a current national standard which may be aff
3、ected, please notify the content developer (contact details below). WARNING: THIS IS A DRAFT AND MUST NOT BE REGARDED OR USED AS A BRITISH STANDARD. THIS DRAFT IS NOT CURRENT BEYOND 31 JANUARY 2009. This draft is issued to allow comments from interested parties; all comments will be given considerat
4、ion prior to publication. No acknowledgement will normally be sent. See overleaf for information on commenting. No copying is allowed, in any form, without prior written permission from BSI except as permitted under the Copyright, Designs and Patent Act 1988 or for circulation within a nominating or
5、ganization for briefing purposes. Electronic circulation is limited to dissemination by e-mail within such an organization by committee members. Further copies of this draft may be purchased from BSI Customer Services, Tel: +44(0) 20 8996 9001 or email . British, International and foreign standards
6、are also available from BSI Customer Services. Information on the co-operating organizations represented on the committees referenced above may be obtained from the responsible committee secretary. Cross-references The British Standards which implement International or European publications referred
7、 to in this draft may be found via the British Standards Online Service on the BSI web site http:/. Direct tel: 020 8996 7868 Responsible Content Developer: Ms Jacqueline Burman (BSI) E-mail: Draft for Public Comment Head Office 389 Chiswick High Road London W4 4AL Telephone: +44(0)20 8996 9000 Fax
8、: +44(0)20 8996 7001 Form 36 Version 8.0 DPC: 08/30142158 DC Licensed Copy: London South Bank University, South Bank University, 31/01/2009 03:08, Uncontrolled Copy, (c) BSI b Introduction Your comments on this draft are invited and will assist in the preparation of the resulting British Standard. I
9、f no comments are received to the contrary, this draft may be implemented unchanged as a British Standard. Please note that this is a draft and not a typeset document. Editorial comments are welcomed, but you are advised not to comment on detailed matters of typography and layout. Submission of comm
10、ents The guidance given below is intended to ensure that all comments receive efficient and appropriate attention by the responsible BSI committee. This draft British Standard is available for review and comment online via the BSI British Standards Draft Review system at http:/. Registration is free
11、 and takes less than a minute. Once you have registered on the Draft Review system you will be able to review all current draft British Standards of national origin and submit comments on them. You will also be able to see comments made on current draft standards by other interested parties. When su
12、bmitting comments on a draft you will be asked to provide both a comment (i.e. justification for change) and a proposed change. All comments will be checked by a moderator before they are made public on the site. This is to ensure that improper language or marketing is not placed on the site the tec
13、hnical content of your comment will not be judged or modified; similarly, your grammar or spelling will not be corrected. A link to the BSI British Standards Draft Review system, or to a specific draft hosted on the system, may be distributed to other interested parties so that they may register and
14、 submit comments. It is not necessary to purchase a copy of the draft in order to review or comment on it; however, additional copies of this draft may be purchased from BSI, Tel: +44(0) 20 8996 9001 or email: . Drafts and standards are also available in PDF format for immediate download from the BS
15、I Shop http:/ Licensed Copy: London South Bank University, South Bank University, 31/01/2009 03:08, Uncontrolled Copy, (c) BSI WARNING. THIS IS A DRAFT AND MUST NOT BE REGARDED OR USED AS A BRITISH STANDARD. THIS DRAFT IS NOT CURRENT BEYOND 31 JANUARY 2009. i BS 5834-2:2009 BRITISH STANDARD Surface
16、boxes, guards and underground chambers for gas and utilities purposes Part 2 Specification for surface boxes ICS x.xxx.xx NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Licensed Copy: London South Bank University, South Bank University, 31/01/2009 03:08, Uncontrolled Copy, (c
17、) BSI WARNING. THIS IS A DRAFT AND MUST NOT BE REGARDED OR USED AS A BRITISH STANDARD. THIS DRAFT IS NOT CURRENT BEYOND 31 JANUARY 2009. ii BS 5834-2:2009 Publishing and copyright information The BSI copyright notice displayed in this document indicates when the document was last issued. BSI 2009 IS
18、BN 0 580 XXXXX X The following BSI references relate to the work on this standard: Committee reference B/504 Draft for comment XX/XXXXXXXX DC Publication history Amendments issued since publication Amd. No. Date Text affected Licensed Copy: London South Bank University, South Bank University, 31/01/
19、2009 03:08, Uncontrolled Copy, (c) BSI WARNING. THIS IS A DRAFT AND MUST NOT BE REGARDED OR USED AS A BRITISH STANDARD. THIS DRAFT IS NOT CURRENT BEYOND 31 JANUARY 2009. iii Contents Foreword v 1 Scope 6 2 Normative references 6 3 Terms and definitions 6 4 Classification 8 5 Materials 9 6 Frames for
20、 combination units 10 7 Fasteners 11 8 Dimensional requirements and design features 12 9 Manufacture and workmanship 18 10 Coatings and corrosion protection 19 11 Test loads 19 12 Marking 21 Annexes Annex A (normative) Loading tests 23 Annex B (informative) Optional items to be agreed between the ma
21、nufacturer and the purchaser 29 Bibliography 31 List of figures Figure 1 Typical section and minimum dimensions for a combination unit and frame for a small surface box 10 Figure 2 Typical section and minimum dimensions for combination unit and frame for a large surface box 10 Figure 3 Dimensions of
22、 prising slots 14 Figure 4a Open keyway 15 Figure 4b Closed keyway 16 Figure 5 Keys 17 Figure A.1 Measurement of permanent set 24 Figure A.2 Test load positions for large surface boxes 27 Figures A.3, A.4, A.5 and A.6 Cover and frame measurement positions and raised and sunken pattern planar surface
23、s 28 Figure A.7.A and A.7.B Cover planar surface patterns 29 Licensed Copy: London South Bank University, South Bank University, 31/01/2009 03:08, Uncontrolled Copy, (c) BSI WARNING. THIS IS A DRAFT AND MUST NOT BE REGARDED OR USED AS A BRITISH STANDARD. THIS DRAFT IS NOT CURRENT BEYOND 31 JANUARY 2
24、009. iv List of tables Table 1 Surface box grades 8 Table 2 Thermoplastics materials requirements 9 Table 3 Designations and specified dimensions of small surface boxes 12 Table 4 Minimum dimensions of frames 13 Table 5 Prising slots 15 Table 6 Keyway dimensions 16 Table 7 Key dimensions 17 Table 8
25、Test loads for small surface boxes 20 Table 9 Test loads for large surface boxes 21 Table B.1 Calculation table 30 Licensed Copy: London South Bank University, South Bank University, 31/01/2009 03:08, Uncontrolled Copy, (c) BSI WARNING. THIS IS A DRAFT AND MUST NOT BE REGARDED OR USED AS A BRITISH S
26、TANDARD. THIS DRAFT IS NOT CURRENT BEYOND 31 JANUARY 2009. v Foreword Publishing information This part of BS 5834 is published by BSI and came into effect on XX Month 200X. It was prepared by Technical Committee B/504, Road Engineering Standards Committee. A list of organizations represented on this
27、 committee can be obtained on request to its secretary. Supersession This part of BS 5834 supersedes BS 5834-2:1983 and BS 5834-3:1985, which are withdrawn. Information about this document This standard is a revision and amalgamation of BS 5834-2:1983 and BS 5834-3:1985. It has been extended to incl
28、ude surface boxes made from cast iron, aluminium, plastics and fabricated steel and to include surface boxes designed for use with all types of utility. Presentational conventions The provisions of this standard are presented in roman (i.e. upright) type. Its requirements are expressed in sentences
29、in which the principal auxiliary verb is “shall”. Commentary, explanation and general informative material is presented in smaller italic type, and does not constitute a normative element. Contractual and legal considerations This publication does not purport to include all the necessary provisions
30、of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Licensed Copy: London South Bank University, South Bank University, 31/01/2009 03:08, Uncontrolled Copy, (c) BSI WARNING. THIS IS A DRAFT AND MUST NOT B
31、E REGARDED OR USED AS A BRITISH STANDARD. THIS DRAFT IS NOT CURRENT BEYOND 31 JANUARY 2009. 6 1 Scope This part of BS 5834 specifies requirements for surface boxes for general utilities purposes including those intended for factory infill with a maximum designated overall clear opening of 600 mm 450
32、 mm. The selection, use and surface finish of infill materials for factory infilled covers is outside the scope of this standard. A test method for loading tests is outlined in Annex A and a summary of the optional items to be agreed between the manufacturer and the purchaser is given in Annex B. NO
33、TE See Table 4 for permitted intrusions to the clear opening. 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
34、(including any amendments) applies. BS 1490, Specification for aluminium and aluminium alloy ingots and castings for general engineering purposes BS 3412, Methods of specifying general purpose polyethylene materials for moulding and extrusion BS 4190, ISO metric black hexagon bolts, screws and nuts
35、Specification BS 4439, Specification for screwed studs for general purposes Metric series BS 5139, Method of specifying general purpose polypropylene and propylene copolymer materials for moulding and extrusion BS 5834-1, Surface boxes, guards and underground chambers for utilities purposes Specific
36、ation for guards and plinths BS EN 1561, Founding Grey cast irons BS EN 1563, Founding Spheroidal graphite cast iron BS EN 12390-3, Testing hardened concrete Compressive strength of test specimens BS EN 14598-3, Reinforced thermosetting moulding compounds Specification for sheet moulding compound (S
37、MC) and bulk moulding compound (BMC) Specific requirements BS EN ISO 1461, Hot dip galvanized coatings on fabricated iron and steel articles Specifications and test methods BS EN ISO 2063, Thermal spraying Metallic and other inorganic coatings Zinc, aluminium and their alloys 3 Terms and definitions
38、 For the purposes of this Part of BS 5834 the following terms and definitions apply. Licensed Copy: London South Bank University, South Bank University, 31/01/2009 03:08, Uncontrolled Copy, (c) BSI WARNING. THIS IS A DRAFT AND MUST NOT BE REGARDED OR USED AS A BRITISH STANDARD. THIS DRAFT IS NOT CUR
39、RENT BEYOND 31 JANUARY 2009. 7 3.1 bedding load load applied to a surface box to achieve bedding-in of the load-bearing parts 3.2 clear opening access opening in a surface box through which a horizontal disc or a horizontal rectangular plate of a diameter equal to the specified minimum dimensions wi
40、ll pass unimpeded, without deviation from a vertical axis, when a surface box is placed in its normal position and with the cover fully open NOTE See Note A to Table 4 for permitted intrusions. 3.3 combination unit cover and frame set in a concrete surround and suitable for bedding on a sectional-ty
41、pe guard or chamber NOTE A surface box embedded in concrete post-production does not constitute a combination unit. 3.4 cover moveable part of a surface box that covers the access opening NOTE The cover may comprise one or more sections. 3.5 designation categorization of a small surface box by grade
42、 and type 3.6 frame part of a surface box that receives and supports the cover 3.7 horizontal disc theoretical disc used to assess the clear opening of a small surface box when passed through at a horizontal angle 3.8 horizontal rectangular plate theoretical rectangular plate used to assess the clea
43、r opening of a large surface box when passed through at a horizontal angle 3.9 planar surface horizontal plane of a surface box cover whose vertical location is determined by the percentage coverage of raised or sunken pattern Licensed Copy: London South Bank University, South Bank University, 31/01
44、/2009 03:08, Uncontrolled Copy, (c) BSI WARNING. THIS IS A DRAFT AND MUST NOT BE REGARDED OR USED AS A BRITISH STANDARD. THIS DRAFT IS NOT CURRENT BEYOND 31 JANUARY 2009. 8 3.10 raised pattern areas of a surface box cover raised above the cover planar surface 3.11 sunken pattern areas of a surface b
45、ox cover recessed below the cover planar surface 3.12 surface box assembly of a frame and cover to give access to any utility apparatus 3.13 test load load applied to a surface box cover for the determination of load-bearing capacity 4 Classification 4.1 Small surface box surface box with a clear op
46、ening of 225 mm or less in diameter, measured with a horizontal disc 4.2 Large surface box surface box with at least one specified clear opening dimension exceeding 225 mm, up to a maximum overall clear opening of 600 mm 450 mm, measured with a horizontal rectangular plate 4.3 Grading Surfaces boxes
47、 shall be graded in accordance with Table 1. Table 1 Surface box grades Grade Description Grade A (heavy) Surface boxes suitable for use in carriageways carrying fast-moving commercial vehicles with wheel loads A) up to 5 tonnes, and in accordance with 8.10. Grade B (medium) B) Surface boxes capable
48、 of bearing wheel loads up to 5 tonnes, for use in areas to which vehicles would have only occasional access. Grade C (light) B) Surface boxes for use in situations not intended for use by vehicles. A) The magnitude of the stated wheel load is as exerted by a stationary vehicle. B) Grade B1 and Grad
49、e C1 boxes (see 8.1 and Table 3) are suitable for use for pipe-type guards conforming to BS 5834-1. Licensed Copy: London South Bank University, South Bank University, 31/01/2009 03:08, Uncontrolled Copy, (c) BSI WARNING. THIS IS A DRAFT AND MUST NOT BE REGARDED OR USED AS A BRITISH STANDARD. THIS DRAFT IS NOT CURRENT BEYOND 31 JANUARY 2009. 9 5 Material