Appendix 1 -Ignalina NPP site arrangement:
1,2 - service water pump stations; 3 - acetylene bottle depot; 4 - oil depot; 5 - oil system equipment; 6 - transformer equipment ; 7 - sewage pump station; 8 - hydrogen/oxygen receiving; 9 - low-level radwaste; 10 - medium and high level waste; 11 - shower water tanks; 12 - waste water tanks; 13 - radwaste processing building vent stack; 14 - bitumen store; 15 - liquid waste storage; 16 - chemical water treatment building; 17 - chemical water treatment tanks; 18,19 - changing facilities; 20, 21 - gas purification systems; 22 - heat supply station; 23,24 - Units 1 and 2, respectively; 25,26 - ECCS accumulator; 27,28 -tanks for clean low-salt water; 29 - vehicle wash; 30 - bitumen depot; 31 - special laundry; 32 - chemical reagent depot; 33 - equipment store; 34 - noble gas bottle depot; 35 - reservoir with artificial evaporation; 36- repair shop; 37,38 - administrative buildings; 39 -cafeteria; 40 - diesel generators; 41 - compressor and refrigeration station; 42 - nitrogen and oxygen building; 43 - liquid nitrogen tank; 44 - 110/330 kV switchyard
Appendix 2 - Ignalina NPP RBMK-1500 reactor flow diagram:
1 - reactor, 2 - steam separator, 3 - suction header, 4 - main circulation pump, 5 - pressure header, 6 - heat exchanger of CPS cooling system, 7 - coolant tank, 8 - CPS cooling system pump, 9 - emergency water tank, 10 - ACS tower, 11 - pump an heat exchanger unit, 12 - ECCS pump, 13 - fuel channel integrity monitoring system, 14 - vacuum pump, 15 - condenser, 16 - reheater, 17 - filter, 18 - compressor, 19 - recipient, 20 - receiver, 21 - catalytic reactor, 22 - cooler, 23 - moisture separator, 24 - heat exchanger liquefier, 25 - absorber, 26 - main heat exchanger, 27 - partial condenser, 28 - storage pool, 29 - cooldown pump, 30 - regenerator, 31 - aftercooler, 32 - bypass cleaning filter, 33 - holdup chamber, 34 - activity suppression facility, 35 - vent stack, 36 - high pressure part of turbine, 37 - low pressure part of turbine, 38 - generator, 39 - exciter, 40 - separator, 41 - intermediate reheater, 42 - separator water receiver and hot well, 43 - turbine condenser, 44 - condensate pump, 45 -main ejector, 47 - seal ejector, 48 - seal ejector cooler, 49 - low pressure reheater, 50 - drainage pump of low pressure reheater, 51 - deaerator, 52 - feedwater pump, 53 - emergency feedwater pump, 54 - evaporator, 55 - steam generator boiler, 56 - heat supply system intermediate circuit boiler, 57 - intermediate circuit pump, 58 - boiler drainage pump, 59 - turbine bypass check valve, 60 - steam discharge facility of the isolation tower, 61 - main steam isolation valves
Appendix 3 - International Nuclear Event Scale