The limit of radiation dose to man during acci-dent of nuclear district heating reactor is whole body dose 5 mSv and thyroid dose 50 mSv;

• （4）每座核供热堆事故工况下，非居住区边界上的任何个人在整个事故期间所接受的有效剂量应不大于5mSv，甲状腺剂量应不大于50mSv；