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    BS PD CEN TR 16940-2016 Domestic gas installations Recommendations for safety《家用气体装置 安全建议》.pdf

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    BS PD CEN TR 16940-2016 Domestic gas installations Recommendations for safety《家用气体装置 安全建议》.pdf

    1、PD CEN/TR 16940:2016 Domestic gas installations Recommendations for safety BSI Standards Publication WB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06PD CEN/TR 16940:2016 PUBLISHED DOCUMENT National foreword This Published Document is the UK implementation of CEN/TR 16940:2016. The UK partici

    2、pation in its preparation was entrusted to Technical Committee GSE/33, Gas Supply. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its

    3、 correct application. The British Standards Institution 2016. Published by BSI Standards Limited 2016 ISBN 978 0 580 91804 9 ICS 91.140.40 Compliance with a British Standard cannot confer immunity from legal obligations. This Published Document was published under the authority of the Standards Poli

    4、cy and Strategy Committee on 31 December 2016. Amendments/corrigenda issued since publication Date T e x t a f f e c t e dPD CEN/TR 16940:2016TECHNICAL REPORT RAPPORT TECHNIQUE TECHNISCHER BERICHT CEN/TR 16940 December 2016 ICS 91.140.40 English Version Domestic gas installations - Recommendations f

    5、or safety Installations intrieures de gaz - Recommandations pour la scurit Gas Installationen in Haushalten - Empfehlungen fr die Sicherheit This Technical Report was approved by CEN on 18 January 2016. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Cze

    6、ch Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. E

    7、UROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. CEN/TR 16940:201

    8、6 E PD CEN/TR 16940:2016 CEN/TR 16940:2016 (E) 2 Contents Page European foreword . 3 Introduction 3 1 Scope 5 2 Normative references 5 3 Terms and definitions . 5 4 Assuring the quality of installation and service work . 6 5 General technical requirements for pipework . 6 6 Technical requirements fo

    9、r appliance installations 7 6.1 General 7 6.2 Competence of operatives 7 6.3 Selection of components and equipment . 8 6.4 Standards applying to appliance rooms . 8 6.5 Appliance commissioning . 11 7 Inspection and maintenance of installations and appliances 12 7.1 General requirements 12 7.2 Requir

    10、ements for operatives . 12 8 Competence of operatives . 13 8.1 General . 13 8.2 Requirements to be competent . 14 8.3 DIY (Do It Yourself) activity . 15 8.4 Recommendations . 15 Annex A (informative) Coherence between types of gas appliances and ventilation/flue products exhausts 17 A.1 General . 17

    11、 A.2 Type A appliances 17 A.3 Type B appliances 17 A.4 Type C appliances . 18 Bibliography . 19 PD CEN/TR 16940:2016 CEN/TR 16940:2016 (E) 3 European foreword This document (CEN/TR 16940:2016) has been prepared by CEN/SFG_I/SFG_U JWG “Safety of domestic gas installations”, the secretariat of which i

    12、s held by AFNOR/BNG. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. PD CEN/TR 16940:2016 CEN/TR 16940:2016 (E) 4 Introduction As a result of the lib

    13、eralization of the gas and services market in Europe and the need to reduce potential barriers to trade, the development of mutually recognized standards covering design, installation, inspection and maintenance of pipework and appliances downstream of the point of delivery, including the developmen

    14、t of a competence assessment scheme for gas operatives and companies engaged in this sector is considered important. The quality and safety of the gas installations are generally ensured through competent operatives, installers and inspectors complying with technical regulations, inspection and main

    15、tenance regimes, safety inspection of work . To assist and facilitate the movement of operatives between states, a mutual recognition framework/matrix that is agreed by all Member States can be envisaged. This should be designed and developed to help Member States and those operatives wishing to rel

    16、ocate, to be able to benchmark their respective knowledge, experience and qualifications against the requirements of the Host State. In particular, the mutual recognition framework is described in the recommendations at the end of this document. PD CEN/TR 16940:2016 CEN/TR 16940:2016 (E) 5 1 Scope T

    17、his Technical Report gives recommendations to ensure the quality and safety of domestic gas installations. This Technical Report covers pipe work, appliances installation, their combustion air supply and flue products exhaust commissioning, inspection and maintenance activities carried out by operat

    18、ives. This document addresses the following three main factors, which have an influence on gas safety in general: a) quality and safety of components of gas installations and gas appliances, b) quality of the work when gas installations are constructed and commissioned, c) inspection and maintenance

    19、 of installations and gas appliances. Potential ways in which individual competence of operatives and/or businesses can be ensured and mutually recognized between Member States are considered. The means of assuring responsible behaviour of consumers is not covered in this document. It does not addre

    20、ss metering or non-domestic (industrial and commercial) installations. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated referen

    21、ces, the latest edition of the referenced document (including any amendments) applies. CEN/TR 1749, European scheme for the classification of gas appliances according to the method of evacuation of the combustion products (types) 3 Terms and definitions For the purposes of this document, the followi

    22、ng terms and definitions apply. (From CEN Guide 14) (From Marcogaz National Competency Framework) 3.1 inspection checking or testing of an installation, by duly competent operatives, against established parameters (which may relate to emission limits), its performance and its conformance to safety r

    23、equirements (checking the actual condition against a target condition), followed by the supply of a written report confirming either compliance with all test parameters or detailing identified deficiencies (where these are deemed so significant as to warrant such action) 3.2 maintenance performance

    24、of preventative examinations, checks, cleaning, adjustment and repairs necessary to maintain target conditions, and the remedying of deficiencies identified during inspection by duly competent operatives, re-establishing target conditions as necessary PD CEN/TR 16940:2016 CEN/TR 16940:2016 (E) 6 4 A

    25、ssuring the quality of installation and service work Domestic gas installations offer safe, efficient and user-friendly comfort to end-users provided they are designed and installed by competent operatives, together with adequate maintenance and regular inspection. The competencies needed are given

    26、in 7.2; how to assess them in dealt with is given in 8.1 and 8.2. In order to ensure quality and safety of gas installations, the following elements shall be considered: technical requirements for pipe work; technical requirements for appliance installations, including combustion air supply, ventila

    27、tion and flue products exhaust; prescriptions for inspection and maintenance of installations and appliances; if applicable, prescriptions for third party safety inspection of new and existing installations; NOTE Safety inspection will often be incorporated into a maintenance specification, but may

    28、be offered as a separate service, which can be compulsory, in the interests of assuring adequate safety performance of an appliance/installation at an economic cost. assuring competence of operatives. There is considerable variation, across Member States, with regards to the manner in which these el

    29、ements are provided for. Each of these elements are considered, in order to provide a basis for a European best practice for minimum safety requirements. Technical standards may be complemented by more detailed national standards, which should be applied in association with European Standards, but w

    30、ill not conflict with them. There may also be additional requirements in national legislation / regulations, particularly those relating to the construction of services within buildings, which shall take precedence. 5 General technical requirements for pipework General technical requirements for pip

    31、ework, so as to achieve a consistent basis for the safe and efficient installation of gas pipework in domestic premises, are given in EN 1775. EN 1775 covers principles of gas supply systems. This functional standard specifies the common appropriate principles and the recognized practices concerning

    32、: design; It is emphasized that gas pipework shall be sized so that the pressure at the inlet of all gas appliances is compatible with their safe and effective operation. installation and construction; testing; commissioning; operation and maintenance; working on operating pipe. PD CEN/TR 16940:2016

    33、 CEN/TR 16940:2016 (E) 7 It shall be applied by competent persons who have suitable knowledge, experience and approval. The standard is for pipework between the point of delivery of the gas and the inlet connection to the gas appliances. It applies to new installation pipework and replacement of, or

    34、 extensions to, existing pipework. It does not cover buried pipework, gas metering systems, LPG storage vessels or single appliance LPG installations without fixed pipework, achieved by a flexible appliance connector from an adjacent LPG storage cylinder. 6 Technical requirements for appliance insta

    35、llations 6.1 General This clause deals with the achievement of a consistent basis for the sustainable, safe and efficient installation of gas appliances in domestic premises, whether in specific appliance rooms or other spaces where gas appliances are installed, in relation to the requirements for:

    36、a) design and installation; b) correct appliance selection; c) correct location; d) combustion and ventilation air; e) flue products exhaust; f) correct commissioning; g) correct maintenance. It shall be applied by competent persons who have suitable knowledge, experience and approval. The occupants

    37、 and owners of domestic dwellings are responsible for the installation during its operation. They shall be provided with written information about the functioning, maintenance and safety of the appliances. Single appliance LPG installations without fixed pipework, achieved by a flexible appliance co

    38、nnector from an adjacent LPG storage cylinder are also considered in this document. 6.2 Competence of operatives The general requirements for competence are dealt with in 8.1. The design of the boiler room, or any other space the appliances are placed in, will usually be the responsibility of a stru

    39、ctural engineer or heating design company in new build or refurbishment projects. However, on one-off domestic installations, this responsibility for design will lie with the installer / installation company. To ensure the safe functioning of the appliances, the safety of occupants or operatives, ef

    40、ficiency and the environmental considerations, the designer/operative shall have sufficient education and/or proven knowledge in the following areas: a) the selection of an appropriate appliance type; b) the national installation regulation; c) the applicable standards (European or national); PD CEN

    41、/TR 16940:2016 CEN/TR 16940:2016 (E) 8 d) the application of manufacturers installation/operating instructions; e) the calculation of ventilation requirements; f) the design of flue duct / chimney size, route, materials, etc.; g) the design of flue termination for effective and safe performance; h)

    42、the design of condensate drainage systems, when applicable. 6.3 Selection of components and equipment New appliances to be installed in domestic dwellings have to be in compliance with the Gas Appliances Directive and have to be CE marked with an appliance category allowed in the Member state in whi

    43、ch they are installed. Since there are different gas qualities delivered to domestic users in the European community, it is of importance that the designer / operative is aware of the range of gas quality on site. Previously used (i.e. second-hand, previously owned or customers own) or modified appl

    44、iances can be found not being CE marked and so particular care needs to be taken to ensure both their fitness for purpose and their compatibility with the supplied gas. Therefore, it is essential that a suitable appliance and, as appropriate, the components of the gas installation match the gas qual

    45、ity on site. As gas quality may change over time, adjustment to the quality of the gas supplied on the day of commissioning can result in unsafe conditions when gas quality varies afterwards. Settings shall be able to accommodate the range corresponding to the appliance category (see EN 437) declare

    46、d by the manufacturer. The designer/operative shall take into account the national safety regulations especially those regarding the connection of gas appliances through a flexible appliance connector or a length of rigid pipe work, the compatibility of connectors and the use, when necessary, of a s

    47、afety shut off device. A manually operated valve or equivalent mean shall be installed on the fixed pipework in the immediate vicinity of each appliance in order to allow a quick shut off of the gas flow to the appliance or, if applicable and allowed, group of appliances in case of emergency. Where

    48、an en fitting is designed to permit quick connection and disconnection of the flexible appliance connector, this fitting shall be self-sealing and shall prevent the release of gas from the upstream pipework. This fitting shall be designed to prevent accidental disconnection and incorrect assembly. 6

    49、.4 Requirements applying to appliance rooms 6.4.1 General As far as known at the time or writing, there are no European Standards on appliance rooms. Therefore, these rooms shall be in compliance with national regulations/standards and appliance manufacturers instructions. General principles of coherence are described in Annex A. 6.4.2 Basic conditions As the functioning of gas appliances may be affected by the construction of the room or space in which the appliance is installed, it is essential that the operative checks that the flue, ventilation and lo


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