<?xml version="1.0" encoding="UTF-8" standalone="no"?><?Xpress productLine="ncc-clause" ?><clause id="_4f20851f-045e-4062-aca8-e87afdb25c03" outputclass="ncc-clause"><meta><facet building="Class 1a"/><facet building="Class 1b"/><facet building="Class 10a"/><facet building="Class 10b"/><facet building="Class 10c"/></meta><sptc>S12C4</sptc><title id="_2627ecc7-942e-4838-a81e-11a7d990079f">Construction Deemed-to-Satisfy for smoke doors</title><archive-num>2019: Spec C3.4: 3.2</archive-num><subclause id="_1b1fd89f-748a-4c9b-bfb4-5464281928ac" outputclass="subclause"><title id="_b88f99a1-bc16-4268-9ea8-642ca07f5e8c">SubClause</title><num>1</num><p>A smoke door of one or two leaves satisfies <xref format="dita" href="/tmp/QppServer/Publishing/5e2c1f63-e589-4ce1-95e8-5c3e286a7aff/564_0.6.0.xml#_bb738e51-43d0-4d77-8de0-1ad013444e34" id="_f7294cb5-64b0-46be-889e-cdf2801f3b0f" scope="local" type="clause">S12C3</xref> if it is constructed as follows:</p><ol outputclass="alpha"><li id="_473ac36f-beac-4244-b5ea-bd5ef35848bf">The leaves are side-hung to swing—<ol><li>in the direction of egress; or</li><li>in both directions.</li></ol></li><li id="_e5738126-7adc-4bdd-af62-7286d2655e4d">The leaves are solid-core and at least 35 mm thick, or are capable of resisting smoke at 200°C for 30 minutes.</li><li id="_bde6a75e-3cf4-479a-8ac1-eb61051bca56">The leaves are fitted with smoke seals.</li><li id="_8d6368f6-e90f-43e0-9650-9911ee1846e4">The leaves—<ol><li>are normally in the closed position; or</li><li>operate such that—<ol><li>they are closed <xref format="dita" href="/tmp/QppServer/Publishing/5e2c1f63-e589-4ce1-95e8-5c3e286a7aff/1199_0.7.0.xml#_ac370c9b-7389-4daa-ac5b-338e11dc43e7" id="_c7cc27a9-28e9-4b50-82d0-2a4f203e4192" scope="local" type="abcb-glossentry">automatically</xref> with the <xref format="dita" href="/tmp/QppServer/Publishing/5e2c1f63-e589-4ce1-95e8-5c3e286a7aff/1199_0.7.0.xml#_ac370c9b-7389-4daa-ac5b-338e11dc43e7" id="_ef8f3f7e-8338-48d8-86c5-a94fbe81b5c2" scope="local" type="abcb-glossentry">automatic</xref> closing operation initiated by smoke detectors, installed in accordance with the relevant provisions of AS 1670.1, located on each side of the doorway not more than 1.5 m horizontal distance from the doorway; and</li><li>in the event of power failure to the door, they will fail-safe in the closed position.</li></ol></li></ol></li><li id="_e6182f8c-4c63-42e1-a956-b9ab0983c96f">The leaves return to the fully closed position after each manual opening.</li><li id="_b20d81b8-3fb0-4ffd-a21e-48caa67e4a9f">Any glazing incorporated in the door complies with AS 1288.</li><li id="_d58f8c1d-72dd-413c-b0c5-d75436bf9080">If a glazed panel is capable of being mistaken for an unobstructed <xref format="dita" href="/tmp/QppServer/Publishing/5e2c1f63-e589-4ce1-95e8-5c3e286a7aff/1263_2.3.0.xml#_9712f630-8cf7-401b-b1cc-ae0be4485915" id="_44bbcebb-3097-46ed-a151-399d3f63181f" scope="local" type="abcb-glossentry">exit</xref>, the presence of the glass must be identified by an opaque mid-height band, mid-rail, crash-bar or other opaque construction.</li></ol></subclause></clause>