Fig. 3-13. Cross-sectional viow of the main building at Smolensk

1-firal-stage condensate pump; 2-125/20-1 overhead travelling crane; Jeparator-steam superheater; -K-500-65/1000 steam turbine: 1-con-
denser: 4-additional cooler: 7-low-pressure heater; -deacrator-50/10-t overhead travelling crane; 10-main circulating pump /-electric
motor of main circulating pump: 18-drum separator: 13-50/16-1 remotely controlled overhead travelling crane: 14-refueling nechanism: 13-
board room; 1-hour Wirengear Tocation, -exnaust ventilation Rant locations & wanit
RBMK-1000 reactor; 16-accident containment Valves 17-bubbler nond: -pipe alale; 12-modular control board: 22-Jocation beneath control

3B. DESCRIPTION OF PRIMARY SYSTEM ENCLOSURE

RBMK-1000

ENCLOSURE PHILSOPHY

DEDUCED FROM LITERATURE

O ENCLOSE REACTOR AND MAJOR PIPING WITHIN TWO DRY WELLS

O WE DO NOT HAVE ENOUGH INFORMATION TO DRAW ANY DEFINITE
CONCLUSIONS REGARDING THE CAPABILITIES OF THE PRIMARY SYSTEM
ENCLOSURE

O IT APPEARS THAT THE SOVIET PHILOSOPHY OF CONTAINMENT/
CONFINEMENT MAY BE SIGNIFICANTLY DIFFERENT FROM U.S./EUROPE