<?xml version="1.0" encoding="UTF-8" standalone="no"?><image-reference xmlns:xt="urn:xpressauthor:trackchanges" id="_0af60307-8e68-4943-8163-901db08f1675"><num><xt:insText xt:action="start" xt:author="Jerome Samuel" xt:dateTime="2024-03-12T07:43:00" xt:id="b447adb4-0aec-4a8e-bddb-034077845e53"/>10.8.3b (explanatory)<xt:insText xt:action="end" xt:id="b447adb4-0aec-4a8e-bddb-034077845e53"/></num><title id="_c00b4374-dbda-4ffd-b805-64bfd7c1d150"><xt:insText xt:action="start" xt:author="Jerome Samuel" xt:dateTime="2024-03-12T07:43:00" xt:id="054a1da5-2f4d-4e30-a1dc-151fb6ad537e"/>Example ventilation openings calculation<xt:insText xt:action="end" xt:id="054a1da5-2f4d-4e30-a1dc-151fb6ad537e"/></title><image height="1667" heightdpi="200" href="/tmp/QppServer/Publishing/5e2c1f63-e589-4ce1-95e8-5c3e286a7aff/10-8-3b-explanatory-Example-ventilation-openings-calculation.svg" width="1200" widthdpi="200" xt:author="Jerome Samuel" xt:dateTime="2024-03-12T07:45:30" xt:type="insert"/><desc-note id="_52b562ad-effc-400c-b545-c7dbe5983ca9" xt:author="Jerome Samuel" xt:dateTime="2024-08-20T09:28:44" xt:type="insert"><ol outputclass="numbered" xt:author="Jerome Samuel" xt:dateTime="2024-08-20T09:28:52" xt:type="insert"><li id="_7e4c1083-fe7d-4354-8aea-ac844302522b" xt:author="Jerome Samuel" xt:dateTime="2024-08-20T09:28:52" xt:type="insert"><xt:insText xt:action="start" xt:author="Jerome Samuel" xt:dateTime="2024-08-20T09:28:00" xt:id="3c2f3b81-9cca-4279-b839-2c90e4ee5ccc"/>For a pitch ≥10° and &lt;75°: Both have a clear longest total plan dimension of 20 m.<xt:insText xt:action="end" xt:id="3c2f3b81-9cca-4279-b839-2c90e4ee5ccc"/></li><li id="_26ece952-4bf5-4683-a8ff-e211f27cc983" xt:author="Jerome Samuel" xt:dateTime="2024-08-20T09:31:45" xt:type="insert"><xt:insText xt:action="start" xt:author="Jerome Samuel" xt:dateTime="2024-08-20T09:31:00" xt:id="e087fa97-7f06-445e-a27c-444f14717695"/>Total low-level ventilation = <xt:insText xt:action="end" xt:id="e087fa97-7f06-445e-a27c-444f14717695"/><xt:insText xt:action="start" xt:author="Lee Liu" xt:dateTime="2024-08-27T09:38:00" xt:id="9ae8faea-caac-4ffe-8b0e-a0291068998b"/>2 x 20<xt:insText xt:action="end" xt:id="9ae8faea-caac-4ffe-8b0e-a0291068998b"/><xt:insText xt:action="start" xt:author="Jerome Samuel" xt:dateTime="2024-08-20T09:31:00" xt:id="328cc5bd-83a5-4238-9560-23daf317b892"/> x 7,000 mm<sup id="_266a7987-f3c6-4880-8b74-4f020682ac96">2</sup>/m.<xt:insText xt:action="end" xt:id="328cc5bd-83a5-4238-9560-23daf317b892"/></li><li id="_b377ca13-97ca-4e12-9e1e-bccc145de8f2" xt:author="Jerome Samuel" xt:dateTime="2024-08-20T09:33:04" xt:type="insert"><xt:insText xt:action="start" xt:author="Jerome Samuel" xt:dateTime="2024-08-20T09:33:00" xt:id="032876c1-4549-4982-a8c5-2aa183bbf94c"/>Total high-level ventilation = 20 x 5,000 mm<sup id="_22cdb6fc-6b75-4bd6-bfff-5ef573b1656d">2</sup>/m.<xt:insText xt:action="end" xt:id="032876c1-4549-4982-a8c5-2aa183bbf94c"/></li></ol></desc-note></image-reference>