1、BRITISH STANDARD BS6880-3: 1988 Code of practice for Low temperature hot water heating systems of output greater than45kW Part 3: Installation, commissioning and maintenance UDC 696.45/.46:621.181.25.182.2.183.325:621.18.018:697.27.326:614.8BS6880-3:1988 This British Standard, having been prepared u
2、nder the directionof the Refrigeration, Heating and Air Conditioning Standards Committee, was published under the authority ofthe Board of BSI and comes intoeffect on 29February 1988 BSI02-1999 The following BSI references relate to the work on this standard: Committee reference RHE/23 Draft for com
3、ment 85/70687 DC ISBN 0 580 16028 9 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Refrigeration, Heating and Air Conditioning Standards Committee (RHE/-) to Technical Committee RHE/23, upon which the following bodies were represented:
4、Association of Consulting Engineers British Combustion Equipment Manufacturers Association British Gas plc Building Services Research and Information Association Chartered Institution of Building Services Engineers Department of Health and Social Security Department of the Environment (Property Serv
5、ices Agency) Electricity Supply Industry in England and Wales Health and Safety Executive Hevac Association Institute of Refrigeration Institution of Gas Engineers Ministry of Defence Royal Institute of British Architects Sealed Expansion Vessel Association Amendments issued since publication Amd. N
6、o. Date of issue CommentsBS6880-3:1988 BSI 02-1999 i Contents Page Committees responsible Inside front cover Foreword ii Section 1. General 1.1 Scope 1 1.2 Definitions 1 Section 2. Installation 2.1 General 2 2.2 Statutory regulations/safety 2 2.3 Site facilities 4 2.4 Storage and protection 6 2.5 Eq
7、uipment and system installation: general 7 2.6 Utilization subsystem installation 8 2.7 Distribution subsystem installation 11 2.8 Installation of energy conversion equipment 15 2.9 Electrical installations 18 2.10 Installation of control equipment 18 Section 3. Inspection, commissioning and testing
8、 3.1 General 20 3.2 Inspection and testing at works 20 3.3 Inspection and testing on site 21 3.4 Commissioning 21 3.5 Performance testing 23 3.6 Handover procedure 25 Section 4. Operation and maintenance 4.1 Maintenance policy 27 4.2 Safety considerations 27 4.3 Personnel 27 4.4 Records 27 4.5 Proce
9、dures 29 4.6 Economic and energy use considerations 32 Appendix A Bibliography 33 Table 1 Supports for steel pipework 13 Table 2 Supports for copper pipework 13 Publications referred to Inside back coverBS6880-3:1988 ii Foreword This Part of BS6880 has been prepared under the direction of the Refrig
10、eration, Heating and Air Conditioning Standards Committee. BS6880 is published in three Parts which together form a full technical revision of CP341.300-307:1956 which is withdrawn. This Part gives recommendations on the installation, commissioning and maintenance of low temperature hot water heatin
11、g systems. The other two Parts are: Part 1: Fundamental and design considerations; Part 2: Selection of equipment. The policy adopted when writing this code has been to avoid repetition of material for which other bodies are the accepted authority, except in so far as limited extraction assists the
12、understanding of this code. Consequently the code provides general recommendations only on certain topics. References in this category are as follows. a) For detailed procedures: 1) publications of the Chartered Institution of Building Services Engineers (CIBSE), particularly: i) CIBSE Guide 1; ii)
13、CIBSE Building Energy Code 2; iii) technical memoranda relating to fire in buildings; iv) practice notes relating to provision of combustion and ventilation air for boiler installations; 2) handbooks published by the American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE).
14、 b) For detailed commissioning arrangements: 1) CIBSE commissioning codes; 2) application guides published by the Building Services Research and Information Association (BSRIA). It should be noted that references to such applications are deemed to refer to the current edition, whereas specific extra
15、cts reproduced in this code are from the edition current at the time of preparation of this code. Whilst the recommendations made in this code generally relate to current practice, they are not intended to inhibit the use of innovative systems or equipment which an experienced designer considers app
16、ropriate to the application, and which meet all statutory requirements and the safety and general good practice recommendations of this code. It is desirable that the principal interested parties should be made aware of such proposals at the design stage. Reference is made in the text to a number of
17、 Acts of Parliament and to various regulations made under them. Such lists are necessarily incomplete, and in any particular circumstance the users of this code should acquaint themselves with the relevant regulations in force at the time. Attention is drawn to the requirements of the Building Regul
18、ations of England and Wales, of Scotland, Northern Ireland and of Inner London.BS 6880-3:1988 BSI 02-1999 iii 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
19、 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 and iv, pages1 to 34, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments inc
20、orporated. This will be indicated in the amendment table on theinside front cover.iv blankBS6880-3:1988 BSI 02-1999 1 Section 1. General 1.1 Scope This Part of BS6880 gives recommendations regarding the work involved in installation, commissioning, operation and maintenance of low temperature hot wa
21、ter (see1.2.1) heating systems of output greater than45kW, open vented or sealed. It is primarily intended for use by building owners, building managers, installers and associated professionals. It is not intended to serve as a detailed design guide (seeforeword). The recommendations recognize the n
22、eed to optimize the use of energy, reduce hazards and minimize effects detrimental to the environment. Solar heating is outside the scope of this code. NOTEThe titles of the British Standards publications referred to in this standard are listed on the inside back cover. References in the text to oth
23、er publications are identified in the text by numbers in square brackets, and are listed in Appendix A. 1.2 Definitions For the purposes of this Part of BS6880 the definitions given in BS1523, BS3533 and BS5643 apply together with the following. NOTESee also the CIBSE Building Energy Code 2. 1.2.1 l
24、ow temperature hot water (LTHW) water used as the heating medium such that its temperature does not exceed 100C at any point in the system, whether open or sealed NOTEVarious safety considerations may require that the actual design flow temperature of an LTHW system should be significantly less than
25、100C (seeSection B.1 of the ClBSE Guide 1, HSE Guidance Note PM5 3 and section three of BS6880-1:1988). 1.2.2 boiler an appliance designed for heating water either for space heating or for space heating combined with hot water supply 1.2.3 heat emitters equipment emitting heat for the purpose of spa
26、ce heating NOTEThis equipment includes radiators, convectors, skirting heating and radiant panels. 1.2.4 radiator a unit for space heating that warms the air by convection and provides radiationBS 6880-3:1988 2 BSI 02-1999 Section 2 Section 2. Installation 2.1 General This section of the code gives
27、general recommendations on the installation of LTHW heating systems and equipment. It deals with the installation of the principal items of equipment associated with the utilization, distribution, energy conversion and control subsystems, including associated pipework installations, thermal insulati
28、on and electrical work. Attention is drawn to the need to observe all statutory regulations and safety recommendations. Careful thought should be given to the storage and protection of equipment and system components to prevent deterioration or damage. 2.2 Statutory regulations/safety 2.2.1 Safety,
29、statutory requirements and other regulations Principal sources of reference are given in 2.4 of BS6880-1:1988. Some further guidance is given in the following, but it should be appreciated that the references quoted in this code are not fully comprehensive: CIBSE Technical Memorandum No. 2 4 CIBSE T
30、echnical Memorandum No. 3 5 “Construction Safety: Policy, Organization, Administration” issued by the National Federation of Building Trade Employers 6 “Safety Manual for Mechanical Plant Construction” issued by the Oil and Chemical Plant Contractors Association 7. It is every employers responsibili
31、ty to ensure that all safety and other related regulations are complied with. All individuals have a duty of care to others under the requirement of the Health and Safety at Work etc. Act, regardless of contractual relationships. 2.2.2 The Health and Safety Executive The Health and Safety Executive
32、should be consulted if any doubts arise regarding safety, health or welfare matters. It should be noted that inspectors have power to enter any premises that are subject to the Health and Safety at Work etc. Act1974 or to Construction Regulations, to examine relevant registers and certificates and e
33、xercise the other powers specified in clause20 of the aforementioned Act. 2.2.3 Statute law The Health and Safety at Work etc. Act 1974 and associated regulations and legislation (TheFactories Act 1961 and Offices, Shops and Railway Premises Act 1963) require that adequate steps be taken to safeguar
34、d the health, safety and welfare of persons at work, and others who may be affected by the work. The main sections of the Health and Safety at Work etc. Act relating to the supply and installation of heating equipment are: Section 2, requiring employers to ensure the health, safety and welfare of th
35、eir employees. Section 3, requiring employers and the self employed to conduct their work in a way that does not put persons other than their employees at risk. Section 6, which places an obligation on designers, manufacturers, importers and suppliers of equipment. The Factories Act 1961, as its tit
36、le suggests, applies mainly to factories but there are sections that apply to building operations and works of engineering construction. The following topics, which relate to the construction industry, are covered in the Factories Act 1961 and attention is drawn to the need to comply with its requir
37、ements on these matters (seealso 2.2.1). Sanitary accommodation Steam boilers and air receivers Welfare Special Health and Safety Regulations Notification of accidents and industrial diseases Notification of work starting, if the work is for more than6 weeks duration Notification of employment of yo
38、ung persons Keeping of records and posting of notices 2.2.4 Common law Under common law, an employer has a “duty of care” for his employees. Basically, this means that an employer has, for example, to: a) provide a safe place of work; b) provide safe plant and equipment; c) ensure a safe system of w
39、ork; d) make sure employees are competent to do the work given to them.BS6880-3:1988 BSI 02-1999 3 2.2.5 Construction regulations: principal requirements The Health and Safety at Work etc.Act gives the Minister responsible the power to make special regulations relating to safety and health in partic
40、ular types of work. A number of such regulations exist relating to construction work. These comprise the main body of statute law affecting site work. The principal regulations are as follows. Construction (General Provisions) Regulations1961 Construction (Lifting Operations) Regulations1961 Constru
41、ction (Working Places) Regulations 1966 Construction (Health and Welfare) Regulations1966 The following topics cover areas of requirements related to the construction industry, details of which can be found in the legislation quoted in 2.2.3. Responsibilities of employers Responsibilities of employe
42、es Appointment of safety supervisors Excavations Dangerous fumes Fencing of machinery Electricity and temporary lighting Projecting nails and loose material Protection of the eyes and protective clothing Cranes and hoists Scaffolding Welfare facilities In respect of installation work carried out in
43、certain types of premises, the legislation listed in this subclause may not have statutory effect. Nevertheless, the observance of its requirements is recommended as a minimum standard of safety. 2.2.6 Other regulations relevant to the heating and ventilation industry It should be appreciated that a
44、ny person on a construction site or similar place of work may be exposed to the risks associated with all of the operations being carried out, rather than those associated with a specific trade. However, attention is drawn to the following statutory regulations and other recommendations which are di
45、rectly relevant to those engaged in the installation of LTHW heating systems. a) Statutory regulations Abrasive Wheels Regulations1970 Asbestos Regulations1969 Employers Liability (Defective Equipment) Act1964 Employers Liability (Compulsory Insurance) Act1969 Electricity (Factories Act) Special Reg
46、ulations1908 and 1944 Fire Certificates (Special Premises) Regulations1976 Protection of the Eyes Regulations 1974 Highly Flammable Liquids Petroleum Gas Regulations 1972 Gas Safety (Installation and Use) Regulations1984 Asbestos Regulations 1969. First list of approved dust respirators Ionizing Rad
47、iations (Sealed Sources) Regulations 1969 b) Other recommendations Health and Safety Executive Guidance Notes Other Health and Safety Executive Publications “Approved Code of Practice and Guidance Notes on Work with Asbestos” 8 HSE “Guide to the Asbestos (Licensing) Regulations 1983” 9 Attention is
48、also drawn to the particular hazards associated with refrigeration systems, where the requirements of BS4434 apply. There is also a particular risk of suffocation associated with the use of certain pipe freezing techniques in confined spaces. The “Code of practice for reducing the exposure of employ
49、ed persons to noise” 10 should also be noted. Reference should also be made to 2.4 of BS6880-1:1988 in respect of risks and safety requirements associated with installations and equipment which may form part of an LTHW heating installation, including fuel storage and combustion, rotating equipment, electrical installations and hazardous chemicals. The provision of water to the site should be in accordance with the relevant Water Byelaws. 2.2.7 Protective clothing and equipment Employers are required by law to provide the following. a) Suitab
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