前言空调与排烟兼用的系统无需为排烟专设风机和风道,造成防火区弱点的竖向风道也可免去,对紧急状态时动作的可靠性程度也有所提高,但日本迄今尚无施工实例。根据日本建筑基准法,这种系统属禁用之列,欲实现这种系统需特殊的认可手续。争取特殊认可是一方面,另外空调换气所需风量 Foreword The air-conditioning and smoke-exhausting systems do not need to have special fans and ducts for exhaust fumes, and the vertical ducts that cause weak points in the fire-prevention areas can also be eliminated. The degree of reliability in the operation in an emergency is also improved, but Japan has not yet done so. Construction example. According to the Japanese Building Standards Act, this system is banned and special authentication procedures are required to implement such a system. The fight for special recognition is on the one hand, and the air volume required for air conditioning