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1、BRITISH STANDARD BS 3561:1962 Incorporating Amendment Nos. 1 and 2 Specification for Non-domestic space heaters burning town gas UDC 697.245:662.76 Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 08:57:32 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3561:1962 This British Standard, having be
2、en approved by the Gas Industry Standards Committee and endorsed by the Chairman of the Engineering Divisional Council, was published under the authority of the General Council on 30 November 1962 BSI 03-2000 The following BSI references relate to the work on this standard: Committee reference GSE/2
3、0 Draft for comment AB(GSE)4566 ISBN 0 580 34410 X Co-operating organizations The Gas Industry Standards Committee, under whose supervision this British Standard was prepared, consists of representatives from the following Government department and scientific and industrial organizations: Associatio
4、n of Heating, Ventilating and Domestic Engineering Employers Gas Council* Institution of Gas Engineers* Ministry of Power Society of British Gas Industries* The scientific and industrial organizations marked with an asterisk in the above list, together with the following, were directly represented o
5、n the committee entrusted with the preparation of this British Standard: Fire Offices Committee Institution of Heating and Ventilating Engineers Ministry of Labour (Factory Inspectorate) Amendments issued since publication Amd. No.Date of issueComments 5656October 1965 448February 1970Indicated by a
6、 sideline in the margin Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 08:57:32 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3561:1962 BSI 03-2000i Contents Page Co-operating organizationsInside front cover Forewordiv 1Scope1 2Definitions1 3Safety1 Part 1: General requirements 4Gas soundnes
7、s2 5Electrical requirements2 6Gas connections3 7Fittings and materials4 8Heat input4 9Ignition4 10Pilot4 11Flame failure device5 12Combustion performance5 13Flame stability5 14External temperatures6 15Thermal efficiency6 16Cocks and taps6 17Governors7 18Relay valves7 19Thermostats7 20Flue system8 21
8、Finish and accessories8 22Built-in appliances9 23Fitting, maintenance and operation9 24Additional design features9 25Working life9 26Packaging10 Part 2: Air heaters, fan assisted 27Controls11 28Flue baffles11 29Warmed air outlet11 30Air inlet11 31Motors and fans11 32Installation11 33Air delivery vol
9、ume11 34Air delivery temperature11 35Leakage characteristics12 36Thermal efficiency12 Part 3: Overhead heaters, radiant type 37Ignition13 38External temperatures13 39Control13 40Flue system13 41Radiants and refractories13 42Installation and servicing13 43Flame stability13 Licensed Copy: sheffieldun
10、sheffieldun, na, Wed Nov 29 08:57:32 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3561:1962 ii BSI 03-2000 Page 44Radiant heat distribution and efficiency13 Part 4: Flued convector heaters, natural convection 45Convected air temperatures15 46Wall staining15 47Installation15 48Thermal efficiency15 4
11、9Flame failure device15 Part 5: Room sealed heaters Section 1. Balanced flue type 50Installation and servicing16 51Terminal16 52Guarding of the terminal16 53Ignition16 54Flame stability16 55Thermal efficiency16 56Sealing of the heat exchanger17 57Fitting into walls of combustible material17 Section
12、2. Se-Duct type 58Installation and servicing17 59Ignition17 60Combustion performance and flame stability17 61Thermal efficiency18 62Sealing of the heat exchanger18 Appendix A Test gases19 Appendix B Appliance testing21 Appendix C Procedure for leak testing22 Appendix D Method of test for flame failu
13、re devices22 Appendix E Measurement of temperatures23 Appendix F Measurement of thermal efficiency24 Appendix G Paint scratch test25 Appendix H Life test25 Appendix J Air delivery measurement25 Appendix K Determination of radiant heat distribution and efficiency of overhead heaters25 Appendix L Appa
14、ratus for testing performance of appliance in a wind26 Appendix M Additional methods of test for balanced flue type heaters27 Appendix N Test for leakage of the heat exchanger28 Appendix P Conditions of test for Se-Duct type heaters28 Appendix Q Apparatus and method for static vitiated air test for
15、Se-Duct appliances29 Appendix R Relevant British Standards30 Appendix S Conversion factors30 Appendix T Appliance fitted with draught diverter test apparatus and methods40 Figure 1 Bubble leak indicator31 Figure 2 Diagrammatic arrangement of apparatus for testing an appliance with benzene-enriched g
16、as32 Figure 3 Apparatus for measuring floor and wall temperatures33 Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 08:57:32 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3561:1962 BSI 03-2000iii Page Figure 4 Apparatus for measuring ceiling temperatures34 Figure 5 Paint scratch test apparatu
17、s36 Figure 6 Thermopile test arm37 Figure 7 Thermopile and carrier38 Figure 8 Radiant efficiency test points38 Figure 9 Wind generator39 Figure 10 Se-Duct test apparatus40 Table 1 Characteristics of test gases TGA, TGB, TGC and TGD20 Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 08:57:32 GM
18、T+00:00 2006, Uncontrolled Copy, (c) BSI BS 3561:1962 iv BSI 03-2000 Foreword This standard makes reference to the following British Standards: BS 7, Rubber-insulated cables and flexible cords for electric power and lighting (for working voltages up to and including 11 kV). BS 21, Pipe threads. BS 3
19、1, Steel conduits and fittings for electrical wiring. BS 158, Marking and arrangements of switchgear bus-bars, main connections and small wiring. BS 170, Electrical performance of fractional horse-power motors and generators with class A insulation. BS 192, Open-ended spanners (not including B.A. si
20、zes). BS 249, Leaded brass (58 per cent copper, 3 per cent lead) rods and sections (other than forging stock). BS 265, Cold rolled brass sheet, strip and foil. Common brass. BS 567, Asbestos cement flue pipes and fittings, light quality. BS 715, Sheet metal flue pipes and accessories for gas-fired a
21、ppliances. BS 729, Zinc coatings on iron and steel articles. BS 731-1, Flexible steel conduits and adaptors for the protection of electric cable. BS 794, Transformers for low-voltage lighting below 1 kVA rating (excluding transformers for use in mines). BS 822, Terminal markings for electrical machi
22、nery and apparatus. BS 822-5, Terminal markings for input terminals of composite apparatus. BS 831, Transformers for use with electrically-operated toys. BS 832, Bell transformers (excluding transformers for use in mines). BS 835, Asbestos cement flue pipes and fittings, heavy quality. BS 1041, Code
23、 for temperature measurement. BS 1042, Code for flow measurement. BS 1133, Packaging code. BS 1179, Glossary of terms used in the gas industry. BS 1224, Electroplated coatings of nickel and chromium. BS 1250, Domestic appliances burning town gas. BS 1250-1, General requirements. BS 1250-3, Water-hea
24、ting appliances. BS 1250-4, Space-heating appliances. BS 1344, Methods of testing vitreous enamel finishes. BS 1400, Schedule of copper alloy ingots and copper and copper alloy castings. BS 1552, Control plug cocks for low pressure gas. BS 1756, Methods for the sampling and analysis of flue gases. B
25、S 1963, Pressure-operated relay valves for use with town gas. BS 2004, PVC-insulated cables and flexible cords for electric power and lighting. BS 2035, Cast-iron flanged pipes and flanged fittings. BS 2706, Non-ferrous conduit and conduit fittings (aluminium and zinc alloy). BS 2872, Copper and cop
26、per alloys forging stock and forgings. BS 3042, Standard test fingers for protection against electric shock and mechanical hazard. BS 3156, Methods for the sampling and analysis of fuel gases. BS 3554, Independent low pressure governors for appliances burning town gas. BS 3804, Determination of the
27、calorific value of fuel gases. Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 08:57:32 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3561:1962 BSI 03-2000v This British Standard will help to ensure that the appliances covered by it are safe and will give good service, but it is necessary to
28、point out that compliance with the standard does not of itself guarantee that satisfactory service will be obtained. Conditions of use vary greatly and it is necessary to relate the standards of performance to the actual use to which appliances will be subjected. There are also local preferences and
29、 customs which should be taken into account. For these reasons the co-operation of the local gas undertaking and of heating engineers concerned with the installation, maintenance and servicing of appliances should be sought when these are being selected. NOTEThe figures specified in British units ar
30、e to be regarded as the standard. Approximate metric conversions may be made using the factors in Appendix S. More accurate conversions should be based on the tables in BS 350, “Conversion factors and tables”. A British Standard does not purport to include all the necessary provisions of a contract.
31、 Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i to vi, pages 1 to 42 and a back cover. This
32、standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 08:57:32 GMT+00:00 2006, Uncontrolled Copy, (c) BSI vi blank Licensed Copy: sheffie
33、ldun sheffieldun, na, Wed Nov 29 08:57:32 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3561:1962 BSI 03-20001 1 Scope This British Standard covers the construction and performance of non-domestic space heaters burning town gas, but not their installation. This standard is divided into Parts as foll
34、ows: Part 1: General requirements; Part 2: Air heaters, fan-assisted; Part 3: Overhead heaters, radiant type; Part 4: Flued convector heaters, natural convection; Part 5: Room sealed heaters (requirements additional to Part 2 or Part 4). Where performance standards are laid down for controls, they r
35、elate only to controls fitted as part of, or supplied with, particular appliances; they do not necessarily provide a complete specification for controls when they are intended for general use and are tested separately. No specific reference is made in this standard to central heating boilers for non
36、-domestic purposes, but it is intended that these rated at over 150,000 Btu/h shall satisfy the relevant requirements of BS 1250, Parts 1 and 31). For testing purposes, appliances shall be adjusted and operated in accordance with Appendix A and Appendix B. Notwithstanding the requirements specified
37、in this standard, any new designs, materials and methods of assembly giving at least equivalent results to those specified in this standard are acceptable. Every appliance intended to conform to this standard shall comply with the general requirements of Part 1 and the specific requirements of other
38、 relevant parts. All gas pressures quoted in this standard, unless otherwise stated, are in inches water gauge (in w.g.). 2 Definitions For the purpose of this British Standard the definitions in the relevant British Standard Codes of Practice apply. Other definitions are given in BS 11792). 3 Safet
39、y Safety requirements and recommendations specific to individual types of appliances are included in Part 1 and other relevant parts of this standard. The standard does not cover appliances for installation where special fire hazards are present e.g. in garages or paint spray booths. 1) BS 1250, “Do
40、mestic appliances burning town gas”. Part 1, “General requirements”. Part 3, “Water-heating appliances”. 2) BS 1179, “Glossary of terms used in the gas industry”. Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 08:57:32 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3561:1962 2 BSI 03-2000 Par
41、t 1: General requirements 4 Gas soundness a) Components. For appliances operating on low pressure gas supply, controls, except for taps and cocks, shall be sound at an internal air pressure of 12 in w.g. when tested as in Appendix C. All fittings and components except controls shall be sound at a pr
42、essure of 100 in w.g. b) Complete assembly. A fully assembled gas appliance shall be sound at a pressure of 12 in w.g. when tested as in Appendix C3). 5 Electrical requirements a) Wiring. Cables and flexible cords which are not liable to exceed a temperature of 140 F (60 C) under working conditions
43、shall conform to BS 7 or BS 20044). Other wiring which is likely to exceed 140 F (60 C) under working conditions shall be continuously insulated in a suitable manner, e.g. with an impregnated asbestos covering or a mineral insulated metal sheathed cable. Where mechanical protection is considered nec
44、essary, wiring shall be run in conduits suitable for the purpose. Flexible conduits shall comply with BS 731, Part 15); rigid conduits shall comply with BS 31 or BS 27066). b) Bushings for cables and cords. Where cables and cords pass through metal, the holes through which they pass shall be suitabl
45、y shaped or bushed to prevent damage to the insulating covering of the conductors. c) Electrical termination. The materials, design and protection of all terminals shall be such that neither the terminals nor the conductors connected to them overheat in service. The electrical input terminals of the
46、 appliance shall be clearly and permanently identified either i) by marking L, N and E to indicate “line”, “neutral” and “earth” respectively for single phase or L1, L2, L3, N and E for three phase (see BS 822, Part 57), or ii) by colouring with red, black and green (green/yellow) for single phase o
47、r with red, yellow, blue, black and green (green/yellow) for three phase (see BS 1588), or iii) by indicating the terminals by figures on an adjacent “as seen” wiring diagram see Clause 23 c). Other terminals intended for connection to devices external to the appliance shall be suitably and permanen
48、tly identified. Electrical connections on the permanent wiring of the heater shall be made by suitable screwed terminal arrangements of rigid construction or, if the connection is to be made under the head of a screw or bolt, a cup-shaped washer or equivalent device suitable for repeated use shall b
49、e provided. Any electrical plugs and sockets incorporated to facilitate servicing shall be of the safety type and it shall not be possible for reconnection to be made incorrectly. Where necessary, provision shall be made to facilitate the conduit connection. Where connection to the supply is intended to be made by a flexible cord a suitable cord grip and bush shall be provided. d) Earthing. The earthing terminal shall be connected by an earth continuity conductor to all exposed metal parts which might become live in the event of electri