The field investigations including the statuses of fire protection layout, fire hazards and fire protection facilities for Nanjing representative historical building (Yuejiang Tower, Tianfei Palace, Jiangnan Examination Institute and Confucius Temple) have been conducted. The problems of the investigated historical buildings are found to be: extensive distribution of combustibles, high fire loads, deficiency of fire separation distance, shortage of fire facilities, unreasonable fire detector

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... extinguisher selection, backward fire regulations etc. Taking Yuejiang Tower as an example, the design of minimum extinguisher configurations has been performed according to the code and investigated data. Finally the optimal proposals and measures to improve the fire protection and management system are presented. Nomenclature Q fire rating(A/B) K correction coefficient S protected area (m 2 /A or m 2 /B) U extinguisher configuration level of configured site relevant dangerous rating(m 2 /A or m 2 /B) Q S the fire rating of actual configuration extinguisher for each site Qe the fire rating of required configuration extinguisher for each site N quantity of configuration site