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ZSI_Reconnect_China/PATSTAT/CPC_data/CPCSchemeXML202302/cpc-scheme-G21D.xml

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<?xml version="1.0" encoding="UTF-8"?>
<class-scheme publication-date="2023-02-01" scheme-type="cpc" publication-type="official">
<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" sort-key="G21D" definition-exists="true" date-revised="2020-05-01" status="published"><classification-symbol>G21D</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>NUCLEAR POWER PLANT</text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph>In this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme.</note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="G21D1/00" date-revised="2013-01-01" status="published"><classification-symbol>G21D1/00</classification-symbol>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="G21D1/00" definition-exists="true" ipc-concordant="G21D1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G21D1/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Details of nuclear power plant </text><reference><text>control <class-ref scheme="cpc">G21D3/00</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G21D1/003" definition-exists="false" ipc-concordant="G21D1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G21D1/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Nuclear facilities decommissioning arrangements </text><reference><text>decontamination arrangements, treating radioactively contaminated material <class-ref scheme="cpc">G21F9/00</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G21D1/006" definition-exists="true" ipc-concordant="G21D1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G21D1/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>primary side of steam generators </text><reference><text>secondary side of steam generators <class-ref scheme="cpc">F22B1/00</class-ref>, <class-ref scheme="cpc">F22B35/00</class-ref> or <class-ref scheme="cpc">F22B37/00</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G21D1/02" definition-exists="false" ipc-concordant="G21D1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G21D1/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of auxiliary equipment</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G21D1/04" definition-exists="false" ipc-concordant="G21D1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G21D1/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pumping arrangements </text><reference><text>within the reactor pressure vessel <class-ref scheme="cpc">G21C15/24</class-ref>; electrodynamic pumps <class-ref scheme="cpc">H02K44/02</class-ref></text></reference></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="G21D3/00" definition-exists="true" ipc-concordant="G21D3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G21D3/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control of nuclear power plant </text><reference><text>control of nuclear reaction in general <class-ref scheme="cpc">G21C7/00</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G21D3/001" definition-exists="true" ipc-concordant="G21D3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G21D3/001</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Computer implemented control</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G21D3/002" definition-exists="false" ipc-concordant="G21D3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>G21D3/002</classification-symbol><class-title date-revised="2019-01-01"><title-part><CPC-specific-text><text>Core design; core simulations; core optimisation</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G21D3/004" definition-exists="false" ipc-concordant="G21D3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>G21D3/004</classification-symbol><class-title date-revised="2019-01-01"><title-part><CPC-specific-text><text>Fuel shuffle simulation; fuel shuffle optimisation</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G21D3/005" definition-exists="false" ipc-concordant="G21D3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>G21D3/005</classification-symbol><class-title date-revised="2019-01-01"><title-part><CPC-specific-text><text>Thermo-hydraulic simulations</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G21D3/007" definition-exists="false" ipc-concordant="G21D3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>G21D3/007</classification-symbol><class-title date-revised="2019-01-01"><title-part><CPC-specific-text><text>Expert systems</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G21D3/008" definition-exists="false" ipc-concordant="G21D3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G21D3/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Man-machine interface, e.g. control room layout</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G21D3/02" definition-exists="false" ipc-concordant="G21D3/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G21D3/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Manual control</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G21D3/04" definition-exists="false" ipc-concordant="G21D3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G21D3/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Safety arrangements </text><reference><text>emergency protection of reactor <class-ref scheme="cpc">G21C9/00</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G21D3/06" definition-exists="false" ipc-concordant="G21D3/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G21D3/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>responsive to faults within the plant </text><reference><text>in the reactor <class-ref scheme="cpc">G21C9/00</class-ref></text></reference></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G21D3/08" definition-exists="false" ipc-concordant="G21D3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G21D3/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Regulation of any parameters in the plant</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G21D3/10" definition-exists="false" ipc-concordant="G21D3/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G21D3/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by a combination of a variable derived from neutron flux with other controlling variables, e.g. derived from temperature, cooling flow, pressure</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G21D3/12" definition-exists="false" ipc-concordant="G21D3/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G21D3/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by adjustment of the reactor in response only to changes in engine demand</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G21D3/14" definition-exists="false" ipc-concordant="G21D3/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G21D3/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Varying flow of coolant</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G21D3/16" definition-exists="false" ipc-concordant="G21D3/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G21D3/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Varying reactivity</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G21D3/18" definition-exists="false" ipc-concordant="G21D3/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G21D3/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by adjustment of plant external to the reactor only in response to change in reactivity</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="G21D5/00" definition-exists="true" ipc-concordant="G21D5/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G21D5/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of reactor and engine in which reactor-produced heat is converted into mechanical energy</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G21D5/02" definition-exists="false" ipc-concordant="G21D5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G21D5/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Reactor and engine structurally combined, e.g. portable</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G21D5/04" definition-exists="false" ipc-concordant="G21D5/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G21D5/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Reactor and engine not structurally combined</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G21D5/06" definition-exists="false" ipc-concordant="G21D5/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G21D5/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with engine working medium circulating through reactor core</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G21D5/08" definition-exists="false" ipc-concordant="G21D5/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G21D5/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with engine working medium heated in a heat exchanger by the reactor coolant</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G21D5/10" definition-exists="false" ipc-concordant="G21D5/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G21D5/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Liquid working medium partially heated by reactor and vaporised by heat source external to the core, e.g. with oil heating</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G21D5/12" definition-exists="false" ipc-concordant="G21D5/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G21D5/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Liquid working medium vaporised by reactor coolant</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G21D5/14" definition-exists="false" ipc-concordant="G21D5/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G21D5/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>and also superheated by reactor coolant</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G21D5/16" definition-exists="false" ipc-concordant="G21D5/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G21D5/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>superheated by separate heat source</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="G21D7/00" definition-exists="true" ipc-concordant="G21D7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G21D7/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements for direct production of electric energy from fusion or fission reactions </text><reference><text>obtaining electric energy from radioactive sources <class-ref scheme="cpc">G21H1/00</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G21D7/02" definition-exists="false" ipc-concordant="G21D7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G21D7/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using magneto-hydrodynamic generators </text><CPC-specific-text><reference><text>MHD-generators with thermodynamic cycles <class-ref scheme="cpc">F02C7/00</class-ref>; magneto-hydrodynamic generators <class-ref scheme="cpc">H02K44/08</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G21D7/04" definition-exists="false" ipc-concordant="G21D7/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2023-02-01" status="published"><classification-symbol>G21D7/04</classification-symbol><class-title date-revised="2023-02-01"><title-part><text>using thermoelectric elements </text><CPC-specific-text><text>or thermoionic converters</text></CPC-specific-text><reference><text>structural combination of fuel element with thermoelectric element </text><CPC-specific-text><text>or with thermoionic converters</text></CPC-specific-text><text> <class-ref scheme="cpc">G21C3/40</class-ref> </text><CPC-specific-text><text>, <class-ref scheme="cpc">G21H1/10</class-ref></text></CPC-specific-text><text>; thermoelectric elements <u>per se</u> <class-ref scheme="cpc">H10N10/00</class-ref>, <class-ref scheme="cpc">H10N15/00</class-ref></text></reference></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="G21D9/00" definition-exists="true" ipc-concordant="G21D9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G21D9/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements to provide heat for purposes other than conversion into power, e.g. for heating buildings</text></title-part></class-title></classification-item></classification-item></classification-item></class-scheme>