{"id":362102,"date":"2024-10-20T01:39:04","date_gmt":"2024-10-20T01:39:04","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-5446-42020\/"},"modified":"2024-10-26T02:34:55","modified_gmt":"2024-10-26T02:34:55","slug":"bs-5446-42020","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-5446-42020\/","title":{"rendered":"BS 5446-4:2020"},"content":{"rendered":"

This part of BS 5446 specifies requirements and type test methods for multi-sensor fire alarms, using one of the following combinations of sensors:<\/p>\n

    \n
  1. \n

    smoke and heat;<\/p>\n<\/li>\n

  2. \n

    smoke and carbon monoxide;<\/p>\n<\/li>\n

  3. \n

    carbon monoxide and heat; and<\/p>\n<\/li>\n

  4. \n

    smoke, carbon monoxide and heat.<\/p>\n<\/li>\n<\/ol>\n

    It is applicable to multi-sensor fire alarms intended solely for permanent installation on ceilings or walls of dwellings, and to multi-sensor fire alarms suitable for use in leisure accommodation vehicles (LAVs).<\/p>\n

    It is not applicable to multi-sensor fire alarms incorporating ionization smoke sensors.<\/p>\n

    \n

    NOTE 1 Equipment conforming to this part of BS 5446 might not be suitable for use in boats used as a means of accommodation on inland waterways, due to the corrosive atmosphere.<\/p>\n<\/blockquote>\n

    \n

    NOTE 2 Although not covered by this part of BS 5446, equipment is available for use with multi-sensor fire alarms to provide a suitable warning system for use by deaf and hard of hearing people (see BS 5446\u20113).<\/p>\n<\/blockquote>\n

    \n

    NOTE 3 This part of BS 5446 does not cover the requirements for devices intended for incorporation in fire detection and alarm systems (see BS EN 54\u20111).<\/p>\n<\/blockquote>\n

    \n

    NOTE 4 This part of BS 5446 does not include detection of carbon monoxide as a toxic gas (see BS EN 50291\u20111).<\/p>\n<\/blockquote>\n

    \n

    NOTE 5 This part of BS 5446 does not include detection of fire using heat only (see BS 5446\u20112).<\/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\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
    7<\/td>\nForeword <\/td>\n<\/tr>\n
    9<\/td>\nIntroduction: Open Descriptions
    1 Scope <\/td>\n<\/tr>\n
    10<\/td>\n2 Normative references
    3 Terms, definitions, symbols and abbreviations <\/td>\n<\/tr>\n
    14<\/td>\n4 Product characteristics and test procedures
    4.1 General testing methods <\/td>\n<\/tr>\n
    17<\/td>\n4.2 Indicators
    Table 1 \u2014 Individual alarm indicator <\/td>\n<\/tr>\n
    18<\/td>\nTable 2 \u2014 Mains-on indicator
    Table 3 \u2014 Additional indicators
    Table 4 \u2014 External ancillary devices <\/td>\n<\/tr>\n
    19<\/td>\nTable 5 \u2014 Manufacturer\u2019s adjustments
    Table 6 \u2014 On-site adjustment of response behaviour <\/td>\n<\/tr>\n
    20<\/td>\nTable 7 \u2014 Power supply type <\/td>\n<\/tr>\n
    22<\/td>\nTable 8 \u2014 Monitoring of back-up power source
    Table 9 \u2014 Power source missing prevention <\/td>\n<\/tr>\n
    23<\/td>\nTable 10 \u2014 Battery leads or terminal connections
    Table 11 \u2014 Battery reversal <\/td>\n<\/tr>\n
    25<\/td>\nTable 12 \u2014 Battery fault warning <\/td>\n<\/tr>\n
    26<\/td>\nFigure 1 \u2014 Battery fault warning test circuit <\/td>\n<\/tr>\n
    28<\/td>\nTable 13 \u2014 Routine test facility <\/td>\n<\/tr>\n
    29<\/td>\nTable 14 \u2014 Fire alarm signal
    Table 15 \u2014 Sound output <\/td>\n<\/tr>\n
    30<\/td>\nTable 16 \u2014 Sounder durability
    Table 17 \u2014 Protection against ingress of foreign bodies <\/td>\n<\/tr>\n
    31<\/td>\nTable 18 \u2014 Software controlled multi-sensor fire alarms <\/td>\n<\/tr>\n
    33<\/td>\nTable 19 \u2014 Inter-connectable multi-sensor fire alarms <\/td>\n<\/tr>\n
    34<\/td>\nTable 20 \u2014 Radio frequency link range <\/td>\n<\/tr>\n
    36<\/td>\nTable 21 \u2014 Temporary disablement facility <\/td>\n<\/tr>\n
    38<\/td>\nTable 22 \u2014 Alarm muting facility <\/td>\n<\/tr>\n
    39<\/td>\n4.3 Nominal activation conditions\/sensitivity
    Table 23 \u2014 Repeatability of CO response <\/td>\n<\/tr>\n
    40<\/td>\nTable 24 \u2014 Directional dependence of smoke response
    Table 25 \u2014 Directional dependence of CO response <\/td>\n<\/tr>\n
    41<\/td>\nTable 26 \u2014 Directional dependence of heat response
    Table 27 \u2014 Reproducibility of smoke response <\/td>\n<\/tr>\n
    42<\/td>\nTable 28 \u2014 Reproducibility of CO response <\/td>\n<\/tr>\n
    43<\/td>\nTable 29 \u2014 Reproducibility of heat response
    4.4 Response to slowly developing fires, ageing and contamination
    Table 30 \u2014 Drift compensation <\/td>\n<\/tr>\n
    44<\/td>\n4.5 Response delay (response time)
    Table 31 \u2014 Air movement <\/td>\n<\/tr>\n
    45<\/td>\nTable 32 \u2014 Dazzling
    4.6 Variation in supply voltage
    Table 33 \u2014 Variation in supply voltage <\/td>\n<\/tr>\n
    46<\/td>\n4.7 Fire sensitivity
    Table 34 \u2014 Fire sensitivity <\/td>\n<\/tr>\n
    47<\/td>\nTable 35 \u2014 Quantity and combination of sensors for fire sensitivity testing <\/td>\n<\/tr>\n
    49<\/td>\nTable 36 \u2014 Fire parameter
    4.8 Durability of normal activations\/sensitivity
    Table 37 \u2014 Dry heat (operational) <\/td>\n<\/tr>\n
    50<\/td>\nTable 38 \u2014 Dry heat (endurance) <\/td>\n<\/tr>\n
    51<\/td>\nTable 39 \u2014 Cold (operational) <\/td>\n<\/tr>\n
    52<\/td>\nTable 40 \u2014 Temperature cycling (for leisure accommodation vehicles) <\/td>\n<\/tr>\n
    53<\/td>\nTable 41 \u2014 Low humidity, steady-state (operational) <\/td>\n<\/tr>\n
    54<\/td>\nTable 42 \u2014 Damp heat, cyclic (operational) <\/td>\n<\/tr>\n
    56<\/td>\nTable 43 \u2014 Damp heat, steady-state (operational) <\/td>\n<\/tr>\n
    57<\/td>\nTable 44 \u2014 Damp heat, steady-state (endurance) <\/td>\n<\/tr>\n
    58<\/td>\nTable 45 \u2014 SO2 corrosion (endurance) <\/td>\n<\/tr>\n
    60<\/td>\nTable 46 \u2014 Exposure to high level of carbon monoxide
    Table 47 \u2014 Exposure to chemical agents at environmental concentrations (endurance) <\/td>\n<\/tr>\n
    61<\/td>\nTable 48 \u2014 Conditions for exposure to pollutants <\/td>\n<\/tr>\n
    62<\/td>\nTable 49 \u2014 Shock (operational) <\/td>\n<\/tr>\n
    63<\/td>\nTable 50 \u2014 Impact (operational) <\/td>\n<\/tr>\n
    64<\/td>\nTable 51 \u2014 Vibration, sinusoidal (operational) <\/td>\n<\/tr>\n
    66<\/td>\nTable 52 \u2014 Vibration, sinusoidal (endurance) <\/td>\n<\/tr>\n
    67<\/td>\nTable 53 \u2014 EMC, immunity (operational) <\/td>\n<\/tr>\n
    68<\/td>\n5 Testing, assessment and sampling methods
    5.1 Provision for tests
    5.2 Test schedule
    Table 54 \u2014 Test schedule <\/td>\n<\/tr>\n
    69<\/td>\n6 Assessment and verification of constancy of performance (AVCP)
    6.1 General <\/td>\n<\/tr>\n
    70<\/td>\n6.2 Type testing <\/td>\n<\/tr>\n
    71<\/td>\nTable 55 \u2014 Number of samples to be tested and compliance criteria <\/td>\n<\/tr>\n
    72<\/td>\n6.3 Factory production control (FPC) <\/td>\n<\/tr>\n
    77<\/td>\n7 Marking, labelling and packaging
    7.1 Marking concerning the multi-sensor fire alarm device <\/td>\n<\/tr>\n
    78<\/td>\n7.2 Content of the user manual <\/td>\n<\/tr>\n
    79<\/td>\n7.3 Additional marking of the radio frequency modules
    7.4 Packaging <\/td>\n<\/tr>\n
    80<\/td>\nAnnex A (normative)\u2002 Declaration of performance
    Table A.1 \u2014 Declaration of performance <\/td>\n<\/tr>\n
    82<\/td>\nAnnex B (normative)\u2002 Smoke tunnel for response value measurements
    Annex C (normative)\u2002 Test aerosol for response value measurements <\/td>\n<\/tr>\n
    83<\/td>\nAnnex D (normative)\u2002 Smoke measuring instruments <\/td>\n<\/tr>\n
    84<\/td>\nFigure D.1 \u2014 Mechanical construction of the measuring ionization chamber <\/td>\n<\/tr>\n
    85<\/td>\nTable D.1 \u2014 List of parts of the measuring ionization chamber <\/td>\n<\/tr>\n
    86<\/td>\nFigure D.2 \u2014 Measuring ionization chamber: Method of operation <\/td>\n<\/tr>\n
    87<\/td>\nFigure D.3 \u2014 Measuring ionization chamber: Operating circuit <\/td>\n<\/tr>\n
    88<\/td>\nAnnex E (normative)\u2002 Gas test chamber for CO response threshold value and cross-sensitivity to chemical agents <\/td>\n<\/tr>\n
    89<\/td>\nAnnex F (normative)\u2002 Heat tunnel for heat response value <\/td>\n<\/tr>\n
    90<\/td>\nFigure F.1 \u2014 Example of working section of heat tunnel <\/td>\n<\/tr>\n
    91<\/td>\nFigure F.2 \u2014 Arrangement of heat tunnel \u2013 Section A-A
    Annex G (normative)\u2002 Calculation of the expected battery service life <\/td>\n<\/tr>\n
    92<\/td>\nAnnex H (informative)\u2002 Examples for calculation of the expected battery service life <\/td>\n<\/tr>\n
    97<\/td>\nAnnex I (informative)\u2002 Information about the requirements for the response to slowly developing fires <\/td>\n<\/tr>\n
    98<\/td>\nFigure I.1 \u2014 Linear compensation: limiting case
    Figure I.2 \u2014 Stepwise compensation: limiting case <\/td>\n<\/tr>\n
    99<\/td>\nFigure I.3 \u2014 High-rate, limited-extent compensation <\/td>\n<\/tr>\n
    100<\/td>\nFigure I.4 \u2014 Example of nonlinear transfer characteristic
    Annex J (normative)\u2002 Apparatus for dazzling test <\/td>\n<\/tr>\n
    101<\/td>\nFigure J.1 \u2014 Dazzling apparatus
    Annex K (normative)\u2002 Fire test room <\/td>\n<\/tr>\n
    102<\/td>\nFigure K.1 \u2014 Plan view of fire test room and position of multi-sensor fire alarms and measuring instruments <\/td>\n<\/tr>\n
    103<\/td>\nFigure K.2 \u2014 Mounting positions for instruments and specimens on ceiling
    Figure K.3 \u2014 Side view of fire test room and position of wall-mounted multi-sensor fire alarms <\/td>\n<\/tr>\n
    104<\/td>\nAnnex L (normative)\u2002 Open wood fire (TF1) <\/td>\n<\/tr>\n
    105<\/td>\nFigure L.1 \u2014 Wood arrangement for test fire TF-1
    Figure L.2 \u2014 Limits for m against y, Fire TF1 <\/td>\n<\/tr>\n
    106<\/td>\nFigure L.3 \u2014 Limits for m against time, t, Fire TF1
    Figure L.4 \u2014 Limits for S against time, t, Fire TF1 <\/td>\n<\/tr>\n
    107<\/td>\nAnnex M (normative)\u2002 Smouldering pyrolysis wood fire (TF2)
    Figure M.1 \u2014 Arrangement of the sticks on the hotplate <\/td>\n<\/tr>\n
    109<\/td>\nFigure M.2 \u2014 Limits for m against y, Fire TF2 <\/td>\n<\/tr>\n
    110<\/td>\nFigure M.3 \u2014 Limits for m against time, t, Fire TF2 <\/td>\n<\/tr>\n
    111<\/td>\nFigure M.4 \u2014 Limits for S against time, t, Fire TF2
    Annex N (normative)\u2002 Glowing smouldering cotton fire (TF3) <\/td>\n<\/tr>\n
    112<\/td>\nFigure N.1 \u2014 Arrangement of cotton wicks <\/td>\n<\/tr>\n
    113<\/td>\nFigure N.2 \u2014 Limits for m against y, Fire TF3 <\/td>\n<\/tr>\n
    114<\/td>\nFigure N.3 \u2014 Limits for m against time, Fire TF3 <\/td>\n<\/tr>\n
    115<\/td>\nFigure N.4 \u2014 Limits for S against time t, Fire TF3
    Annex O (normative)\u2002 Open plastics (polyurethane) fire (TF4) <\/td>\n<\/tr>\n
    116<\/td>\nFigure O.1 \u2014 Limits for m against y, Fire TF4 <\/td>\n<\/tr>\n
    117<\/td>\nFigure O.2 \u2014 Limits for m against time, t, Fire TF4
    Figure O.3 \u2014 Limits for S against time, t, Fire TF4 <\/td>\n<\/tr>\n
    118<\/td>\nAnnex P (normative)\u2002 Liquid (heptane) fire (TF5) <\/td>\n<\/tr>\n
    119<\/td>\nFigure P.1 \u2014 Limits for m against y, Fire TF5
    Figure P.2 \u2014 Limits for m against time, t, Fire TF5 <\/td>\n<\/tr>\n
    120<\/td>\nFigure P.3 \u2014 Limits for S against time, t, Fire TF5
    Annex Q (normative)\u2002 Low temperature black smoke (decalene) liquid fire (TF8) <\/td>\n<\/tr>\n
    121<\/td>\nFigure Q.1 \u2014 Limits for m against y, Fire TF8 <\/td>\n<\/tr>\n
    122<\/td>\nFigure Q.2 \u2014 Limits for m against time, t, Fire TF8
    Figure Q.3 \u2014 Limits for S against time, t, Fire TF8 <\/td>\n<\/tr>\n
    123<\/td>\nAnnex R (normative)\u2002 Establishing exposure levels of chemical agents
    Annex S (normative)\u2002 Apparatus for impact test <\/td>\n<\/tr>\n
    125<\/td>\nFigure S.1 \u2014 Impact apparatus
    Annex T (informative)\u2002 Information about the construction of the smoke tunnel <\/td>\n<\/tr>\n
    126<\/td>\nFigure T.1 \u2014 Smoke tunnel, working clause, side view <\/td>\n<\/tr>\n
    127<\/td>\nFigure T.2 \u2014 Smoke tunnel, working section, cross-section A-A
    Annex U (informative)\u2002 Information concerning the construction of the gas test chamber <\/td>\n<\/tr>\n
    128<\/td>\nFigure U.1 \u2014 Example of gas test chamber, side view <\/td>\n<\/tr>\n
    129<\/td>\nAnnex V (informative)\u2002 Construction of the heat tunnel <\/td>\n<\/tr>\n
    131<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

    Fire detection and fire alarm devices for dwellings – Specification for multi-sensor fire alarms using any combination of smoke, heat and carbon monoxide sensors<\/b><\/p>\n\n\n\n\n
    Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
    BSI<\/b><\/a><\/td>\n2020<\/td>\n132<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":362109,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[238,2641],"product_tag":[],"class_list":{"0":"post-362102","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-13-220-20","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\/362102","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\/362109"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=362102"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=362102"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=362102"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}