本章适用于工作压力不大于1.0MPa的室内给水和消火栓系统管道安装工程，包括室内生活给水系统，消火栓系统管道及设备安装，不含室内消防气体灭火系统及燃气系统等管道及设备安装。
This chapter applies to the work pressure is not more than 1.0MPa indoor water supply and hydrant system piping installation, including the indoor living water supply system, fire hydrant system piping and equipment installation, free indoor gas fire extinguishing system and gas system piping and equipment installation.