<?xml version="1.0" encoding="UTF-8" standalone="no"?><?Xpress productLine="ncc-clause" ?><clause id="_0581514d-cae9-4e1d-8b09-3f1c2c122010" 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>S30C4</sptc><title id="_61146f6f-aaaa-4c63-83d8-b792f22c0a7a">Protection from heat</title><archive-num>2019: Spec G2.2: 2.3</archive-num><subclause id="_ff0d08c5-4d6c-4634-95c9-d0a0e0f13b01" outputclass="subclause"><title id="_d84ad269-6236-456a-be91-c6c44a8bcf59">SubClause</title><num>1</num><p>Building elements surrounding a <xref format="dita" href="/tmp/QppServer/Publishing/5e2c1f63-e589-4ce1-95e8-5c3e286a7aff/1210_0.10.0.xml#_5e4c02dd-0737-47ed-ad7b-5de888c05ed7" id="_9ee5d24a-dd0b-4a4e-8b7f-faf49292bcff" scope="local" type="abcb-glossentry">boiler</xref> must be protected from any surface heat by refractory material or effective air spaces so that—</p><ol outputclass="alpha"><li id="_eba5305e-a242-4b2f-8d9b-cc898222cfb3">steel elements do not exceed a temperature of more than 300°C; and</li><li id="_4734e4ae-27f6-4550-b08b-1c3d130b0506">concrete elements do not exceed a temperature of more than 200°C; and</li><li id="_24488088-38b3-4eb3-b6f3-61f9932a0848">timber elements do not exceed a temperature of more than 150°C.</li></ol></subclause></clause>