G21D   1/00  \	0	0	2G077	G21D   1/00	99	原子力プラントの細部構造（制御Ｇ２１Ｄ３／００）	Details of nuclear power plant (control G21D 3/00)
G21D   1/00  A	0	0	2G077	G21D   1/00	99	冷却系機器	Cooling system equipment
G21D   1/00  P	0	1	2G077	G21D   1/00	145	補機冷却系	Cooling system auxiliary equipment
G21D   1/00  Q	0	1	2G077	G21D   1/00	369	熱交換器	heat exchangers
G21D   1/00  R	0	1	2G077	G21D   1/00	206	海水系〔取水，排水等〕	for sea water (such as water-intake and drain)
G21D   1/00  S	0	1	2G077	G21D   1/00	643	蒸気発生器	steam generators
G21D   1/00  B	0	0	2G077	G21D   1/00	496	配管	Piping
G21D   1/00  H	0	1	2G077	G21D   1/00	336	支持または飛散防止	support or splash prevention
G21D   1/00  J	0	1	2G077	G21D   1/00	141	断熱，保温または伝熱	heat insulation, hot insulation, or thermal transfer
G21D   1/00  C	0	0	2G077	G21D   1/00	108	配管貫通部	Pipe through sections
G21D   1/00  L	0	1	2G077	G21D   1/00	323	流体配管貫通部	fluid pipe through sections
G21D   1/00  M	0	1	2G077	G21D   1/00	251	電線管貫通部	conduit through sections
G21D   1/00  E	0	0	2G077	G21D   1/00	229	ドレンに関するもの	Related to drain
G21D   1/00  F	0	0	2G077	G21D   1/00	110	加圧器または尖頭圧減少装置	Pressure devices or peak pressure reduction devices
G21D   1/00  G	0	0	2G077	G21D   1/00	81	圧縮空気系，窒素系	Compressed air system; nitrogen system
G21D   1/00  T	0	0	2G077	G21D   1/00	227	タンク，貯蔵およびピット	Tanks, storage, and pits
G21D   1/00  U	0	0	2G077	G21D   1/00	88	シールに関するもの	Related to seals
G21D   1/00  V	0	0	2G077	G21D   1/00	208	弁に関するもの	Related to valves
G21D   1/00  K	0	1	2G077	G21D   1/00	101	主蒸気隔離弁に関するもの	Related to main valves for separating steams
G21D   1/00  N	0	1	2G077	G21D   1/00	161	逃し弁または安全弁に関するもの	Related to escape or safety valves
G21D   1/00  W	0	0	2G077	G21D   1/00	482	腐食防止に関するもの	Related to prevention of erosion
G21D   1/00  X	0	0	2G077	G21D   1/00	527	ＳＣ対策に関するもの	Related to SC countermeasures
G21D   1/00  Y	0	0	2G077	G21D   1/00	430	被曝低減に関するもの	Related to exposure
G21D   1/00  Z	0	0	2G077	G21D   1/00	183	その他のもの	Others
G21D   1/02  \	1	1	2G077	G21D   1/02	12	付属機器の配置	Arrangements of auxiliary equipment
G21D   1/02  A	1	0	2G077	G21D   1/02	49	液体金属冷却炉に関するもの	Related to liquid-metal cooled reactors
G21D   1/02  B	1	1	2G077	G21D   1/02	54	オーバーフロー系	over-flow systems
G21D   1/02  C	1	1	2G077	G21D   1/02	85	加熱・予熱装置〔制御３／０８Ａ〕	heating and preheating devices (control
G21D   1/02  D	1	1	2G077	G21D   1/02	13	ガスの抽気・置換	air bleed and replacement of gases
G21D   1/02  E	1	1	2G077	G21D   1/02	31	金属蒸気低減装置	metal steam reduction devices
G21D   1/02  F	1	1	2G077	G21D   1/02	30	不純物除去〔Ｇ２１Ｆ優先〕	removing impurities
G21D   1/02  G	1	1	2G077	G21D   1/02	12	凝固ナトリウムの除去・処理〔Ｇ２１Ｆ優先〕	removing and processing solidified sodium
G21D   1/02  H	1	1	2G077	G21D   1/02	85	ナトリウム収納・取扱室の構造	construction of storage and handling room of sodium
G21D   1/02  J	1	1	2G077	G21D   1/02	11	ナトリウムの充填・供給	filling and supplying of sodium
G21D   1/02  K	1	1	2G077	G21D   1/02	33	ナトリウムの回収	collection of sodium
G21D   1/02  L	1	1	2G077	G21D   1/02	18	ナトリウム流通系	circulation system of sodium
G21D   1/02  M	1	1	2G077	G21D   1/02	30	ナトリウム取扱機器	sodium handling devices
G21D   1/02  N	1	1	2G077	G21D   1/02	46	カバーガス系	cover gas system
G21D   1/02  S	1	0	2G077	G21D   1/02	15	主蒸気トンネル	Main steam tunnel
G21D   1/02  T	1	0	2G077	G21D   1/02	539	タービン復水系〔湿分分離器，脱塩器〕	Turbine condensate system (moisture content separators, desalters)
G21D   1/02  U	1	0	2G077	G21D   1/02	65	脱気または空気抽出器	Deairing or air ejectors
G21D   1/02  Z	1	0	2G077	G21D   1/02	42	その他のもの	Others
G21D   1/04  \	1	1	2G077	G21D   1/04	327	ポンプ系の構成（原子炉圧力容器内の手段によるものＧ２１Ｃ１５／２４）	Pumping arrangements (by means within the reactor pressure vessel G21C 15/24)
G21D   3/00  \	0	0	2G077	G21D   3/00	55	原子力プラントの制御（原子核反応の制御Ｇ２１Ｃ７／００）	Control of nuclear power plant (control of nuclear reaction&nbsp;G21C 7/00)
G21D   3/00  B	0	0	2G077	G21D   3/00	252	運転管理または運転支援〔異常時におけるものＧ２１Ｄ３／０４，負荷追従運転時におけるものＧ２１Ｄ３／１２〕	Administration or assistance of operation (at failure G21D3/04; at failure G21D3/04, at load follow operation G21D3/12)
G21D   3/00  E	0	0	2G077	G21D   3/00	158	原子力プラントの起動	Activation of nuclear power plant
G21D   3/00  G	0	0	2G077	G21D   3/00	34	原子力プラントの停止	Termination of  nuclear power plant
G21D   3/00  H	0	0	2G077	G21D   3/00	60	原子力プラントの運転、制御	Operation and control of nuclear power plant
G21D   3/00  A	0	1	2G077	G21D   3/00	137	出力の制御	control of output
G21D   3/00  D	0	1	2G077	G21D   3/00	72	タービン系の制御〔負荷遮断、電力系統異常時におけるものＧ２１Ｄ３／０４，負荷追従運転時におけるものＧ２１Ｄ３／１２〕	control of turbine systems (at load shutdown and at failure of electric systems G21D3/04; at load follow operation G21D3/12)
G21D   3/00  J	0	2	2G077	G21D   3/00	21	再熱器、湿分分離器に関するもの	related to reheaters and moisture separators
G21D   3/00  C	0	0	2G077	G21D   3/00	64	給水制御〔蒸気発生装置の水位制御のためのものＧ２１Ｄ３／０８〕	Control of water supply (for controlling water level for steam generators G21D3/08)
G21D   3/00  K	0	1	2G077	G21D   3/00	26	付属系統、機器の運転制御〔緊急・隔離・停止時の原子炉冷却系の制御Ｇ２１Ｃ１５／１８〕	operation control of a set of attachments and equipment (control of the reactor cooling system during emergency, separation, or shutdown)
G21D   3/00  L	0	2	2G077	G21D   3/00	22	復水器におけるもの	in condensers
G21D   3/00  M	0	2	2G077	G21D   3/00	37	給水加熱器におけるもの	in feed water heaters
G21D   3/00  N	0	2	2G077	G21D   3/00	57	浄化系におけるもの、洗浄のためのもの	in purification systems; for cleaning
G21D   3/00  P	0	2	2G077	G21D   3/00	22	オフガス系におけるもの	in offgas systems
G21D   3/00  Q	0	2	2G077	G21D   3/00	15	加圧器におけるもの	in pressurisers
G21D   3/00  R	0	1	2G077	G21D   3/00	20	同一の機能を有する系に関連するもの	Related to systems having the same function
G21D   3/00  S	0	0	2G077	G21D   3/00	22	複数の原子力プラントに関連する運転、制御	Operation and control related to a plurality of nuclear power plants
G21D   3/00  Z	0	0	2G077	G21D   3/00	30	その他のもの	Others
G21D   3/02  \	1	1	2G077	G21D   3/02	17	手動制御	Manual control
G21D   3/04  \	1	1	2G077	G21D   3/04	38	安全装備（原子炉の緊急防護Ｇ２１Ｃ９／００）	Safety arrangements (emergency protection of reactor G21C 9/00)
G21D   3/04  B	1	0	2G077	G21D   3/04	193	異常状態、事故に対処するための運転支援装置	Operation support devices to deal with emergencies and accidents
G21D   3/04  A	1	0	2G077	G21D   3/04	132	安全保護系、誤スクラム防止、制御系の多重化手段に特徴を有するもの	Characterized by multiplexing means for safety protect systems, prevention of wrong scrams, and control systems
G21D   3/04  C	1	0	2G077	G21D   3/04	27	ＲＳＳ（遠隔停止装置）	RSS (remote stop device)
G21D   3/04  D	1	0	2G077	G21D   3/04	65	安全装備、制御系の起動、切替、停止に特徴を有するもの	Characterized by safety arrangements, and activation, switching, and termination of control systems
G21D   3/04  E	1	0	2G077	G21D   3/04	38	ポンプを保護するもの	Protecting pumps
G21D   3/04  F	1	0	2G077	G21D   3/04	15	タービンを保護するもの	Protecting turbines
G21D   3/04  G	1	0	2G077	G21D   3/04	45	安全弁、隔離弁の漏洩防止、制御に関するもの	Related to prevention and control of safety and separation valves
G21D   3/04  H	1	0	2G077	G21D   3/04	67	異常状態、事故に対処するための運転・制御	Operation and control to deal with faulty conditions and accidents
G21D   3/04  J	1	1	2G077	G21D   3/04	40	ＡＴＷＳ（スクラム失敗の過渡現象）に対処するもの	dealing with ATWS (temporary event when scram fails)
G21D   3/04  K	1	1	2G077	G21D   3/04	34	出力を低下することによりスクラムを回避するもの	avoiding scram by reducing output
G21D   3/04  L	1	1	2G077	G21D   3/04	47	給水系の異常に対処するもの	dealing with the failures of water supply systems
G21D   3/04  M	1	2	2G077	G21D   3/04	12	給水加熱器の異常に対処するもの	dealing with failures in feed water heaters
G21D   3/04  N	1	1	2G077	G21D   3/04	78	ポンプの異常に対処するもの	dealing with failures in pumps
G21D   3/04  P	1	1	2G077	G21D   3/04	81	冷却材、放射性物質の漏洩に対処するもの（冷却材流出防止手段で容器に特徴のあるものＧ２１Ｃ１３／１０、原子炉緊急冷却系Ｇ２１Ｃ１５／１８、圧力抑制Ｇ２１Ｃ９／００）	Characterized by dealing with the leakage of coolants and radioactive materials (vessels that are means to prevent coolants from leaking)
G21D   3/04  Q	1	1	2G077	G21D   3/04	196	所内または外部の電源喪失に対処するもの、電源設備	dealing with power lost inside or outside of sites; power facilities
G21D   3/04  R	1	1	2G077	G21D   3/04	86	負荷遮断、電力系統の異常に対処するもの	dealing with load shutdown and failures in power systems
G21D   3/04  S	1	2	2G077	G21D   3/04	28	出力制御に特徴を有するもの	Characterized by output control
G21D   3/04  T	1	2	2G077	G21D   3/04	58	タービン系の制御に特徴を有するもの	Characterized by the control of turbine systems
G21D   3/04  U	1	1	2G077	G21D   3/04	96	地震に対処するもの	dealing with earthquakes
G21D   3/04  V	1	1	2G077	G21D   3/04	35	火災に対処するもの、原子炉容器・格納容器以外の容器・機器類を緊急冷却するもの	dealing with fires; cooling down vessels, equipment and the like other than reactor and containment vessels
G21D   3/04  Z	1	0	2G077	G21D   3/04	18	その他のもの	Others
G21D   3/06  \	2	2	2G077	G21D   3/06	32	プラント内の事故に感応するもの（原子炉内の事故に感応するものＧ２１Ｃ９／０２）	responsive to faults within the plant (in the reactor G21C 9/02)
G21D   3/08  \	1	1	2G077	G21D   3/08	30	プラントの各パラメータの制御	Regulation of any parameters in the plant
G21D   3/08  A	1	0	2G077	G21D   3/08	86	温度制御〔給水温度，原子炉出入口温度〕	Temperature control (supply water temperature, temperature around the access to a reactor)
G21D   3/08  H	1	1	2G077	G21D   3/08	38	原子炉容器内、出入口におけるもの（カランドリアタンクも含む。以下同様）	within reactor vessels and around the access (including calandria tanks; the same shall apply hereinafter)
G21D   3/08  J	1	1	2G077	G21D   3/08	42	容器、配管、機器の加熱、予熱に関するもの	Related to heating and preheating vessels, pipes, and devices
G21D   3/08  B	1	0	2G077	G21D   3/08	63	流量制御〔炉心流量，給水流量〕	Discharge control (discharge of a core and of water supply)
G21D   3/08  K	1	1	2G077	G21D   3/08	55	炉心流量制御（再循環流量制御はＧ２１Ｃ７／２６Ａが優先）	discharge control of a core (control of recirculating discharge
G21D   3/08  D	1	0	2G077	G21D   3/08	94	圧力制御〔炉圧，主蒸気圧〕	Pressure control (core pressure; main steam pressure)
G21D   3/08  L	1	1	2G077	G21D   3/08	103	蒸気発生装置（原子炉容器、蒸気発生器、蒸気ドラム等）におけるもの	at steam generating equipment  (such as reactor vessels, steam generators, and steam drums)
G21D   3/08  E	1	0	2G077	G21D   3/08	75	レベル制御	Level control
G21D   3/08  M	1	1	2G077	G21D   3/08	25	原子炉容器におけるもの（動力用蒸気を発生するものは除く）	at reactor vessels (excluding what generates steam for power)
G21D   3/08  N	1	1	2G077	G21D   3/08	20	蒸気発生装置（原子炉容器、蒸気発生器、蒸気ドラム等）におけるもの	at steam generating equipment  (such as reactor vessels, steam generators, and steam drums)
G21D   3/08  P	1	2	2G077	G21D   3/08	33	給水制御によるもの	by water supply control
G21D   3/08  Q	1	3	2G077	G21D   3/08	53	制御方式に特徴を有するもの	Characterized by control methods
G21D   3/08  R	1	4	2G077	G21D   3/08	81	三要素（水位、蒸気量、給水流量）制御、単要素（水位）制御によるもの	by three elements (water level, steam quantity, water supply discharge) control and single element (water level) control
G21D   3/08  S	1	4	2G077	G21D   3/08	32	再循環系の運転、制御を考慮するもの	considering operation and control of recirculating systems
G21D   3/08  T	1	4	2G077	G21D   3/08	88	ポンプ、弁の起動、切替、停止を考慮するもの	considering activation, switching, and termination of pumps and valves
G21D   3/08  U	1	4	2G077	G21D   3/08	16	計装・制御系の異常に対処するもの	dealing with failures in instrumentation and control systems
G21D   3/08  V	1	3	2G077	G21D   3/08	29	ミニマムフロー運転、プラントの起動・停止時におけるもの	during minimal flow operation, and start and shutdown of plants
G21D   3/08  W	1	3	2G077	G21D   3/08	49	ポンプ、弁の起動、切替、停止に特徴を有するもの	Characterized by start, switching, and stop of pumps and valves
G21D   3/08  F	1	0	2G077	G21D   3/08	243	可燃性ガス濃度制御	Control of burnable gas concentration
G21D   3/08  G	1	0	2G077	G21D   3/08	435	冷却材中の成分濃度の制御〔酸素濃度，水素濃度〕	Control of the concentration of each component in a coolant (oxygen concentration; hydrogen concentration)
G21D   3/08  X	1	1	2G077	G21D   3/08	244	水素、酸素、過酸化水素水を注入、除去することにより水素、酸素濃度を制御するもの	controlling the concentration of hydrogen and oxygen by injecting or removing hydrogen, oxygen, or hydrogen peroxide
G21D   3/08  Z	1	0	2G077	G21D   3/08	9	その他のもの	Others
G21D   3/10  \	2	2	2G077	G21D   3/10	7	中性子束から導かれた変数と他の制御変数，例．温度，冷却材流，圧力から導かれた変数，とを結合させることによるもの	by a combination of a variable derived from neutron flux with other controlling variables, e.g. derived from temperature, cooling flow, pressure
G21D   3/12  \	2	2	2G077	G21D   3/12	29	動力機関の負荷にのみ応答して原子炉の制御を行なうもの	by adjustment of the reactor in response only to changes in engine demand
G21D   3/12  B	2	0	2G077	G21D   3/12	66	負荷パターン計画、負荷追従運転支援装置	Load pattern planning; load follow operation support equipment
G21D   3/12  A	2	0	2G077	G21D   3/12	21	原子炉で発生した熱を直接利用するプラントの負荷追従運転	Load follow operation of a plant directly using heat generated in reactors
G21D   3/12  C	2	1	2G077	G21D   3/12	106	再循環流量制御（代替手段として制御棒を用いるものも含む）、タービン制御によるもの	recirculating discharge control (including control using control rods as alternative means); by turbine control
G21D   3/12  D	2	1	2G077	G21D   3/12	19	制御棒によるもの	by control rods
G21D   3/12  E	2	2	2G077	G21D   3/12	48	制御棒および再循環流量制御を関連させて用いるもの	using recirculating discharge control  in conjunction with control rods
G21D   3/12  F	2	0	2G077	G21D   3/12	67	原子炉で発生した熱を蒸気発生器、熱交換器等を介して間接的に利用するプラントの負荷追従運転	load follow operation of a plant indirectly using heat generated in reactors through heat generators, heat exchangers, and the like
G21D   3/12  Z	2	0	2G077	G21D   3/12	3	その他のもの	Others
G21D   3/14  \	3	3	2G077	G21D   3/14	8	冷却材の流れを変化させるもの	Varying flow of coolant
G21D   3/16  \	3	3	2G077	G21D   3/16	4	反応度を変化させるもの	Varying reactivity
G21D   3/18  \	2	2	2G077	G21D   3/18	1	反応度の変化のみに応答して原子炉の外部のプラントを制御することによるもの	by adjustment of plant external to the reactor only in response to change in reactivity
G21D   5/00  \	0	0	2G077	G21D   5/00	34	原子炉で発生した熱を機械的エネルギーに変換する原子炉および動力機関の構成	Arrangements of reactor and engine in which reactor-produced heat is converted into mechanical energy
G21D   5/02  \	1	1	2G077	G21D   5/02	23	原子炉と動力機関の構造上の組合せ，例．可搬型	Reactor and engine structurally combined, e.g. portable
G21D   5/04  \	1	1	2G077	G21D   5/04	16	構造上結合していない原子炉と動力機関	Reactor and engine not structurally combined
G21D   5/06  \	2	2	2G077	G21D   5/06	346	機関作動媒体が，炉心内を循環するもの	with engine working medium circulating through reactor core
G21D   5/08  \	2	2	2G077	G21D   5/08	252	機関作動媒体が，熱交換器内で原子炉冷却材により加熱されるもの	with engine working medium heated in a heat exchanger by the reactor coolant
G21D   5/10  \	3	3	2G077	G21D   5/10	15	液体状作動媒体が，原子炉内で一部加熱され，炉の外部の熱源，例．油加熱，により蒸気化されるもの	Liquid working medium partially heated by reactor and vaporised by heat source external to the core, e.g. with oil heating
G21D   5/12  \	3	3	2G077	G21D   5/12	58	液体状作動媒体が原子炉冷却材により蒸気化されるもの	Liquid working medium vaporised by reactor coolant
G21D   5/14  \	4	4	2G077	G21D   5/14	61	さらに，原子炉冷却材によって過熱されるもの	and also superheated by reactor coolant
G21D   5/16  \	4	4	2G077	G21D   5/16	16	別に設けられた熱源により過熱されるもの	superheated by separate heat source
G21D   7/00  \	0	0	2G077	G21D   7/00	23	核融合または核分裂反応から直接発電を行なうための構成（放射線源から電気エネルギーを得るものＧ２１Ｈ１／００）	Arrangements for direct production of electric energy from fusion or fission reactions (obtaining electric energy from radioactive sources G21H 1/00)
G21D   7/02  \	1	1	2G077	G21D   7/02	10	ＭＨＤ発電装置を用いるもの	using magneto-hydrodynamic generators
G21D   7/04  \	1	1	2G077	G21D   7/04	52	熱電素子を用いるもの（燃料と熱電素子との構造上の組合せＧ２１Ｃ３／４０）	using thermoelectric elements (structural combination of fuel element with thermoelectric element G21C 3/40)
G21D   9/00  \	0	0	2G077	G21D   9/00	208	動力への交換以外の目的，例．建物の暖房，のために熱を供給する構成	Arrangements to provide heat for purposes other than conversion into power, e.g. for heating buildings
