{"id":262645,"date":"2024-10-19T17:26:12","date_gmt":"2024-10-19T17:26:12","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-6400-22018\/"},"modified":"2024-10-25T13:16:59","modified_gmt":"2024-10-25T13:16:59","slug":"bs-6400-22018","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-6400-22018\/","title":{"rendered":"BS 6400-2:2018"},"content":{"rendered":"

This British Standard specifies requirements for the installation, exchange, relocation, maintenance and removal of credit or prepayment or smart meters of the following types: diaphragm, ultrasonic and thermal mass gas meters with a maximum capacity not exceeding 6 m3<\/sup>\/h.<\/p>\n

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NOTE 1 For the purposes of this standard, installation includes design, inspection and commissioning. It is recognized that each of these tasks can be performed by the same person.<\/p>\n<\/blockquote>\n

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NOTE 2 For smart meters this standard only covers the associated gas work.<\/p>\n<\/blockquote>\n

This part of BS 6400 is applicable to primary meter installations:<\/p>\n

    \n
  1. \n

    supplied with 2nd family gases from medium pressure gas distribution systems with a maximum operating pressure exceeding 75 mbar but not exceeding 2 bar and with a design maximum incidental pressure of 2.7 bar;<\/p>\n

    \n

    NOTE 3 Some legacy MP networks can operate at a design minimum pressure (DMP) of 35 mbar, 65 mbar, 105 mbar, 180 mbar and 270 mbar.<\/p>\n<\/blockquote>\n<\/li>\n

  2. \n

    only fitted downstream of the emergency control valve;<\/p>\n<\/li>\n

  3. \n

    that utilize a pressure control and protection system contained within a regulator assembly that is downstream of the emergency control valve;<\/p>\n<\/li>\n

  4. \n

    where all gas fittings subjected to medium pressure have been pre-assembled and where strength and gas tightness testing has been undertaken on the regulator assembly at the factory;<\/p>\n

    \n

    NOTE 4 It is recognized that the final connection(s) to the gas service would not be subject to a strength test.<\/p>\n<\/blockquote>\n<\/li>\n

  5. \n

    where the operating pressure at the outlet of the meter is nominally 21 mbar; and<\/p>\n<\/li>\n

  6. \n

    installed external to the building.<\/p>\n<\/li>\n<\/ol>\n

    \n

    NOTE 5 Installation, exchange, relocation, maintenance and removal of a secondary meter with a maximum capacity of 6 m3<\/sup>\/h is specified in BS 6400\u20111.<\/p>\n<\/blockquote>\n

    \n

    NOTE 6 Installation pipework is specified in BS 6891.<\/p>\n<\/blockquote>\n

    \n

    NOTE 7 Service pipes (including the emergency control valve) are specified in the Institution of Gas Engineers and Managers\u2019 publication on gas services, IGE\/TD\/4 [18].<\/p>\n<\/blockquote>\n

    \n

    NOTE 8 All pressures quoted in this standard are gauge pressures and all pressure absorption values are for natural gas unless otherwise specified.<\/p>\n<\/blockquote>\n

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    NOTE 9 Additional guidance on domestic gas systems can be found in the European functional standards BS EN 1775 and BS EN 12279.<\/p>\n<\/blockquote>\n

    \n

    NOTE 10  Additional guidance on measuring systems can be found in the European functional standard BS EN 1776.<\/p>\n<\/blockquote>\n

    PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
    6<\/td>\nForeword <\/td>\n<\/tr>\n
    9<\/td>\n1 Scope
    2 Normative references <\/td>\n<\/tr>\n
    11<\/td>\n3 Terms and definitions <\/td>\n<\/tr>\n
    15<\/td>\n4 Planning and exchange of information
    4.1 Consultation <\/td>\n<\/tr>\n
    16<\/td>\n4.2 Coordination of work
    4.3 Non-return valve
    4.4 Multiple domestic meter installations
    5 Competency <\/td>\n<\/tr>\n
    17<\/td>\nTable 1 \u2014 Approval bodies and statutory regulations by country\/territory
    Table 2 \u2014 Competence requirements by country\/territory <\/td>\n<\/tr>\n
    18<\/td>\n6 Design
    6.1 General <\/td>\n<\/tr>\n
    19<\/td>\nFigure 1 \u2014 Arrangement of a MP meter installation and options for the arrangement of the pressure control and protection system <\/td>\n<\/tr>\n
    20<\/td>\nFigure 1 \u2014 Arrangement of a MP meter installation and options for the arrangement of the pressure control and protection system <\/td>\n<\/tr>\n
    21<\/td>\nFigure 1 \u2014 Arrangement of a MP meter installation and options for the arrangement of the pressure control and protection system <\/td>\n<\/tr>\n
    22<\/td>\nFigure 1 \u2014 Arrangement of a MP meter installation and options for the arrangement of the pressure control and protection system <\/td>\n<\/tr>\n
    23<\/td>\nFigure 1 \u2014 Arrangement of a MP meter installation and options for the arrangement of the pressure control and protection system
    6.2 Pressure control <\/td>\n<\/tr>\n
    24<\/td>\n6.3 Regulator assembly
    6.4 Pressure control and protection system <\/td>\n<\/tr>\n
    25<\/td>\n6.5 Low pressure regulator
    Figure 2a \u2014 Typical IGEM\/GM\/PRS\/28 [N5] meter regulator <\/td>\n<\/tr>\n
    26<\/td>\nFigure 2b \u2014 Typical IGEM\/GM\/PRS\/29 [N6] meter regulators
    6.6 Vent pipe <\/td>\n<\/tr>\n
    27<\/td>\n6.7 Meter <\/td>\n<\/tr>\n
    29<\/td>\nFigure 3 \u2014 Connections on 6 m3\/h metal case meter <\/td>\n<\/tr>\n
    30<\/td>\nFigure 4 \u2014 Connections on 6 m3\/h plastic case meters intended for semi-concealed installation
    6.8 Emergency control valve
    6.9 Meter inlet valve <\/td>\n<\/tr>\n
    31<\/td>\n6.10 Pliable connector
    6.11 Pressure test point
    6.12 Interconnecting pipework
    6.13 Location of meter installation <\/td>\n<\/tr>\n
    32<\/td>\n6.14 Meter housing <\/td>\n<\/tr>\n
    33<\/td>\n6.15 Proximity distances for meter boxes and vent pipe tips <\/td>\n<\/tr>\n
    34<\/td>\nFigure 5 \u2014 Typical meter boxes <\/td>\n<\/tr>\n
    35<\/td>\nFigure 6a) \u2014 Minimum proximity distances from a meter housing (Mh) to openings into a property or to adjacent electrical equipment <\/td>\n<\/tr>\n
    36<\/td>\nFigure 6b) \u2014 Minimum proximity distances from a vent pipe tip (Vpt) to openings into a property or to adjacent electrical equipment <\/td>\n<\/tr>\n
    37<\/td>\nTable 3 \u2014 Minimum proximity distances for meter boxes and relief valve vent pipe tips
    7 Gas transporter appraisal of primary meter installation
    8 Meter work
    8.1 Risk assessment <\/td>\n<\/tr>\n
    38<\/td>\nFigure 7 \u2014 Non-contact voltage detector (single pole): Example
    8.2 Fitting a meter installation <\/td>\n<\/tr>\n
    39<\/td>\n8.3 Handling and care <\/td>\n<\/tr>\n
    40<\/td>\nFigure 8 \u2014 Typical MP meter installations <\/td>\n<\/tr>\n
    42<\/td>\n8.4 Pre-installation checks and safety precautions <\/td>\n<\/tr>\n
    44<\/td>\n8.5 Emergency control valve
    8.6 Protective bonding conductor
    8.7 Temporary continuity bond <\/td>\n<\/tr>\n
    45<\/td>\n8.8 Securing the meter installation
    8.9 Regulator assembly <\/td>\n<\/tr>\n
    46<\/td>\n8.10 Pliable connector
    9 Testing, purging and commissioning of the regulator assembly
    10 Fitting, testing and purging the meter
    10.1 General
    10.2 Installations conforming to Figure 1a) and Figure 1b) <\/td>\n<\/tr>\n
    47<\/td>\n10.3 Installations conforming to Figure 1c) and Figure 1d)
    11 Commissioning of the meter installation
    11.1 Regulator <\/td>\n<\/tr>\n
    48<\/td>\nTable 4 \u2014 Appliance gas flow rates for checking meter regulator performance
    11.2 Meter
    12 Notices
    12.1 General <\/td>\n<\/tr>\n
    49<\/td>\n12.2 Emergency notices <\/td>\n<\/tr>\n
    50<\/td>\n12.3 Meter installation <\/td>\n<\/tr>\n
    51<\/td>\nFigure 9 \u2014 Typical meter installation notices
    12.4 Installations incorporating a secondary meter <\/td>\n<\/tr>\n
    52<\/td>\n12.5 Meter housing notice
    12.6 Emergency control valve
    13 Meter exchange and\/or replacement of other gas fittings
    13.1 General
    13.2 Temporary continuity bond <\/td>\n<\/tr>\n
    53<\/td>\n13.3 Carrying out the work
    14 Meter relocation
    14.1 General
    14.2 Inspection of existing installation
    14.3 Design <\/td>\n<\/tr>\n
    54<\/td>\n14.4 Carrying out the work
    14.5 Gas tightness testing and purging
    14.6 Commissioning, notices and records
    15 Meter installation removal <\/td>\n<\/tr>\n
    55<\/td>\n16 Records <\/td>\n<\/tr>\n
    56<\/td>\n17 Post installation checks
    18 Inspection and maintenance
    18.1 General
    18.2 Five year inspection and maintenance of meter housing and meter installation <\/td>\n<\/tr>\n
    57<\/td>\n18.3 Ten year inspection and maintenance of meter housing and meter installation <\/td>\n<\/tr>\n
    58<\/td>\nAnnex A (normative)\u2002 Sizing of meters
    Table A.1 \u2014 Diversity factors of appliances for meter sizing <\/td>\n<\/tr>\n
    59<\/td>\nAnnex B (normative)\u2002 Operating pressure limits
    Table B.1 \u2014 Operating pressure limits for meter installation pressure control and protection systems <\/td>\n<\/tr>\n
    61<\/td>\nAnnex C (normative)\u2002 Testing, purging and commissioning of the regulator assembly <\/td>\n<\/tr>\n
    69<\/td>\nFigure C.1 \u2014 Typical arrangement of test and purge apparatus <\/td>\n<\/tr>\n
    70<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

    Specification for installation, exchange, relocation, maintenance and removal of gas meters with a maximum capacity not exceeding 6 m3<\/sup>\/h – Medium pressure (2nd family gases)<\/b><\/p>\n\n\n\n\n
    Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
    BSI<\/b><\/a><\/td>\n2018<\/td>\n74<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":262647,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1275,2641],"product_tag":[],"class_list":{"0":"post-262645","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-91-140-40","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/262645","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/262647"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=262645"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=262645"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=262645"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}