本文讨论了在机械设计中容易被忽视的重要安全导向规范要求。有一些关键的安全或服务相关设计实践适用于建筑机械系统，但经常被工程师、设计建造专家、承包商甚至规范官员忽视。回顾了设备间操作员安全的最佳实践、OSHA要求和VRF制冷剂安全要求。具体主题包括屋顶安装设备附近的护栏、热表面隔热要求、不同占用空间的单独通风、内部楼梯外壳机械设计、机械设备周围的通道和过道，以及在同一房间内放置冷却器和锅炉的可能危险。 引用:2019年年度会议，密苏里州堪萨斯城，会议论文

This paper discusses important safety-oriented code requirements that tend to be overlooked in mechanical design. There are critical safetyorservice-related design practices applicable to building mechanical systems but frequently overlooked by engineers, design-build specialists,contractors, and even code officials. Best practices for operator safety in equipment rooms, OSHA requirements, and VRF refrigerantsafety requirements are reviewed. Specific topics include guardrails near roof-mounted equipment, requirements for insulation on hot surfaces,separate ventilation for differing occupancies, interior stairway enclosure mechanical design, access and aisles around mechanical equipment,and possible hazards of placing chillers and boilers in the same room.