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1、BRITISH STANDARD BS 6762-2: 1991 Services for leisure accommodation vehicles and transportable accommodation units Part 2: Code of practice for the installation of solid fuel fired heating in park homes and transportable accommodation units Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 12:2
2、0:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6762-2:1991 This British Standard, having been prepared under the direction of the Basic Data and Performance Criteria for Civil Engineering and Building Structures Standards Policy Committee, was published under the authority of the Standards Board
3、 and comes into effect on 28 June 1991 BSI 04-1999 The following BSI references relate to the work on this standard: Committee reference BDB/6 Draft for comment 86/12565 DC ISBN 0 580 18812 4 Committees responsible for this British Standard The preparation of this British Standard was entrusted by t
4、he Basic Data and Performance Criteria for Civil Engineering and Building Structures Standards Policy Committee (BDB/-) to Technical Committee BDB/6, upon which the following bodies were represented: Association of British Solid Fuel Appliances Manufacturers British Holiday and Home Parks Associatio
5、n Limited Building Employers Confederation Caravan Club Chartered Society of Designers Chief and Assistance Chief Fire Officers Association Consumer Policy Committee of BSI Department of Health Department of the Environment Department of Transport Fibre Building Board Organisation (FIDOR) Home Offic
6、e Institute of Building Control Institution of Electrical Engineers Institution of Environmental Health Officers Institution of Fire Engineers Liquefied Petroleum Gas Industry Technical Association (UK) Local Authority Organizations National Caravan Council Limited National Prefabricated Building As
7、sociation Ltd. Royal Institute of British Architects Society of Motor Manufacturers and Traders Limited Solid Fuel Advisory Service Trades Union Congress Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 12:20:39 GMT+00:00 2006, Uncontrol
8、led Copy, (c) BSI BS 6762-2:1991 BSI 04-1999i Contents Page Committees responsibleInside front cover Forewordii 1Scope1 2Definitions1 3Ventilation1 4Appliance output1 5Materials and components1 5.1General1 5.2Chimneys and appliance connections1 5.3Fuel storage1 6Installation1 6.1Siting of appliances
9、1 6.2Appliances1 6.3Pipework2 6.4Air for combustion2 6.5Draught stabilizers2 6.6Ventilation of appliance enclosures2 6.7Protection of combustible material2 6.8Hearth2 6.9Chimney3 6.10 Chimney terminal4 6.11 Protective casing4 6.12 Dampers4 6.13 Accessibility of chimney assembly4 7Warning plate5 7.1F
10、itting5 7.2Wording5 7.3Size of lettering5 8Users handbook5 8.1Information on operation, maintenance and safety5 8.2Maintenance and general instructions for the owner5 8.3Operating instructions for the occupant5 8.4Safety precautions for the occupant5 Appendix A Test for determination of temperature
11、of adjacent combustible material8 Appendix B Calculation of hot face temperature and additional insulation thickness9 Figure 1 Diagrammatic representation of weathering at penetration of roof by combined chimney unit3 Figure 2 Diagrammatic plan of appliance enclosure and hearth4 Figure 3 Diagrammati
12、c representation of weathering at penetration of pitched roof and flat roof by factory-made insulated chimney6 Figure 4 Diagrammatic section through appliance enclosure and hearth7 Figure 5 Heat flow10 Table 1 Temperature readings of sensors in C8 Publications referred toInside back cover Licensed C
13、opy: sheffieldun sheffieldun, na, Wed Dec 06 12:20:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6762-2:1991 ii BSI 04-1999 Foreword This Part of BS 6762 has been prepared under the direction of the Basic Data and Performance Criteria for Civil Engineering and Building Structures Standards Policy
14、 Committee. It is a revision of BS 5601-2:1978, which is withdrawn. It is one of a series that is being published for leisure accommodation vehicles and transportable accommodation units. The other Parts of BS 6762 are: Part 11): Ventilation; Part 3: Oil-fired heating systems; Part 41): Liquefied pe
15、troleum gas installations; Part 5: Low voltage electrical installations;1) Part 61): Water supply; Part 71): Drainage. This standard aligns with the other Parts of BS 6762. Its main purpose is to provide increased safety for occupants of park homes and transportable accommodation units by lessening
16、the risk of fire and reducing the likelihood of accidents caused by escaping fumes. It is recommended that open fires should not be installed in park homes nor transportable accommodation units. This revision is specifically limited to the installation of closed heating appliances which are solely u
17、sed for burning solid smokeless mineral fuel; this was implicit in the previous edition of the standard but not stated. The British Standards published for park homes and transportable accommodation units are, respectively, BS 3632 and BS 6492-1 and BS 6492-2. Since the publication of the previous e
18、dition, uninsulated chimneys have generally been superseded by combined units and by factory-made insulated chimneys because of their safety and convenience. In view of these advantages, this revision deals solely with the installation of factory-made insulated chimneys complying with BS 4543, which
19、 limits the rated output of any one appliance, or of combined units comprising a cast iron flue with an insulating outer pipe, to 45 kW. It should be noted that the requirements of BS 4626 and BS 4989 do not permit the installation of solid fuel fired heating appliances in touring trailer caravans o
20、r in holiday caravans, nor should they be installed in motor caravans. Insulating materials consisting of asbestos reinforced cement or other asbestos based products should not be used to provide non-combustible surfaces or for other purposes. NOTEThe manufacture and use of all asbestos based produc
21、ts is covered by the requirements of the Control of Asbestos at Work Regulations 1987, introduced on 1 March 1988. These set out comprehensive provision covering work activities involving exposure to asbestos. Advice on how to comply with these regulations can be obtained from the manufacturers of t
22、he material, from the Asbestos Information Centre, St Andrews House, 22-28 High Street, Epsom, Surrey, KT19 8AH, from the local area office of the Health and Safety Executive or from the Environmental Department of the Local Authority. WARNING. Breathing asbestos dust is dangerous to health and prec
23、autions have to be taken during the manufacture and use of these products. Particular note has to be taken of the Asbestos Products (Safety) Regulations 1985 and the Asbestos Products (Safety) (amendment) Regulations 1987, made under the Consumer Safety Act 1978, and also of the Asbestos (Prohibitio
24、ns), Regulations 19852) and the Asbestos (Prohibitions) (amendment) Regulations 1988 made under the Health and Safety at Work etc Act 1974, which prohibit the supply of products containing amosite or crocidolite (“brown” asbestos and “blue” asbestos respectively) and set out requirements for the lab
25、elling of all products containing asbestos. All the above legislation implement European Directives. 1) In preparation. 2) Parallel regulations for Northern Ireland came into force on 6 March 1986. Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 12:20:39 GMT+00:00 2006, Uncontrolled Copy, (c)
26、 BSI BS 6762-2:1991 BSI 04-1999iii A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summar
27、y of pages This document comprises a front cover, an inside front cover, pages i to iv, pages 1 to 10, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside fron
28、t cover. Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 12:20:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 12:20:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6762-2:1991 BSI 04-19991 1 Scope This Part of BS 6762 gives recom
29、mendations for the installation in park homes and transportable accommodation units of closed heating appliances having a rated output of up to and including 45 kW, burning solid smokeless mineral fuel and fitted with factory-made insulated chimneys or combined chimney units. It covers room heaters,
30、 with or without boiler, cookers with integral boilers and independent boilers that provide heating or hot water. It covers safety precautions and includes details of relevant sizes. It does not cover the installation of open fires. NOTEThe titles of the publications referred to in this standard are
31、 listed on the inside back cover. 2 Definitions For the purposes of this Part of BS 6762 the definitions in BS 1846-1, BS 6760 and BS 6100-3.1 apply. 3 Ventilation General ventilation should be provided in accordance with the recommendations of BS 5601-1. For additional ventilation required for comb
32、ustion and details of the air inlets see 6.4 and 6.6. 4 Appliance output Heating appliances installed should have an output that provides, without over-running and when the external temperature is 0 C, a temperature within living areas of 20 C and within halls and passages, etc. of 13 C. 5 Materials
33、 and components 5.1 General Materials and components used should comply with the following British Standards as appropriate: 5.2 Chimneys and appliance connections 5.2.1 Chimneys Each appliance should be provided with a chimney, taken through the roof. This may be a factory-made insulated chimney th
34、at complies with BS 4543-2 when tested in accordance with BS 4543-1, or a combined chimney unit consisting of a cast iron flue that complies with BS 41 with an insulating pipe made of material that is classified as non-combustible when tested in accordance with BS 476-4. 5.2.2 Connection to applianc
35、e Materials for fittings for connections between an appliance and its chimney should be in accordance with the recommendations of 6.1 of BS 6461-2:1984. 5.2.3 Access for cleaning Provision should be made for the flue and chimney to be swept easily and efficiently and for flue deposits to be cleaned
36、from the appliance. 5.2.4 Size of flue The size of the flue should be not less than that of the cross-sectional area of the outlet of the appliance and should be in accordance with the recommendations of Table 1 of BS 6461-2:1984. 5.3 Fuel storage It is essential that no provision be made for fuel t
37、o be stored in or under a park home or transportable accommodation unit. 6 Installation 6.1 Siting of appliances Heating appliances should not be sited where they may cause obstruction, particularly to passages and escape routes. They should not be positioned where they could create a fire hazard or
38、 damage surrounding materials or fold-away furnishings such as beds and tables, whether these are folded away or in position for use. 6.2 Appliances All appliances should be installed in accordance with the recommendations of BS 8303 and should comply with the following British Standards as appropri
39、ate: pipe threadsBS 21 cast iron flue pipes and fittingsBS 41 copper tube fittingsBS 864-2 cookers with integral boilersBS 1252 brazingBS 1723 back boilersBS 3377 room heatersBS 3378 solid smokeless fuel boilersBS 4433-1 or BS 4433-2 factory-made insulated chimneysBS 4543-2 cookers with integral boi
40、lersBS 1252 back boilersBS 3377 room heatersBS 3378 solid smokeless fuel boilersBS 4433-1 or BS 4433-2 Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 12:20:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6762-2:1991 2 BSI 04-1999 An operating tool or tools should be provided so that hot sur
41、faces do not have to be touched by hand. 6.3 Pipework 6.3.1 Branch connections Connections for branches from a boiler to water service pipes should be made only with pipe fittings. 6.3.2 Ferrous pipes Where ferrous pipes or pipe fittings with screw threads are used, all threads should comply with BS
42、 21. 6.3.3 Copper pipes Where copper pipes or pipe fittings are used, joints should comply with BS 864-2. 6.3.4 Other joints Where joints are not made in accordance with 6.3.2 and 6.3.3, soldering, welding or brazing should be used. Brazing should be in accordance with BS 1723. 6.3.5 Identification
43、of pipelines Where there is risk of confusion, pipelines should be marked with appropriate identification colours as specified in BS 1710. 6.4 Air for combustion For all appliances, whether free-standing, inset or built-in, air for combustion should be provided by means of an air inlet or inlets at
44、low level through the base of an external wall or through the floor and positioned as closely as possible to the appliance. All such inlets should be covered with mesh screens that will give a total free area of ventilation of not less than 550 mm2/kW of the rated output of the appliance. Such scree
45、ns should have apertures of not less than 6 mm nor more than 9 mm in any direction and they should be accessible for cleaning. Fine mesh should not be used as it is liable to become blocked. 6.5 Draught stabilizers Where an appliance is fitted with a draught stabilizer or where one is fitted to a ch
46、imney in the same room as the appliance, an additional air inlet or inlets should be provided from the exterior with a total free area of ventilation of at least 300 mm2/kW of the rated output of the appliance. All such inlets should be fitted with mesh screens as described in 6.4. 6.6 Ventilation o
47、f appliance enclosures Where an appliance is built into an enclosed space, air inlets should be provided at or near the bottom of the enclosed space with a minimum free area of ventilation of 500 mm2/kW of the rated output of the appliance. All such inlets should be covered with mesh screens as desc
48、ribed in 6.4. The air outlet from the enclosed space, which includes the appliance and its chimney, should be through the castellations in the roof collar (see 6.9.2). 6.7 Protection of combustible material Provision should be made to protect any combustible material adjacent to any appliance, flue
49、or forced air duct to ensure that its temperature does not exceed 100 C when tested in accordance with Appendix A. At no time should the temperature at the position of sensor 1 in Figure 1 exceed 300 C. It is essential that any method of protection be verified for its effectiveness, in at least one model of each range produced, by a means of a practical test carried out in accordance with Appendix A. Where effectiveness is so proved, other models in the range employing the same system can be deemed to be acceptable. 6.8 Hearth An appliance shoul
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