本标准适用于住宅单元内以及不属于住宅单元的卧室/区域内烟雾报警器的安装。（参考附录A，解释性材料，第A1.1条和附录B，加强住宅区的消防安全。）烟雾报警器的检查、测试和维护要求参见CAN/ULC-S552《烟雾报警器的检查、测试和维护标准》。本标准不包括包含住宅火灾报警系统的系统。 这些系统的要求参见CAN/ULC-S540《住宅火灾报警和生命安全系统标准:安装、检查、测试和维护》。（参考附录A，说明材料，第A1.3条和附录D，带发声器底座的烟雾探测器。）

This Standard applies to the installation of smoke alarms within dwelling units as well as within sleeping rooms / areas that are not part of dwelling units. (Refer to Appendix A, Explanatory Material, Clause A1.1 and Appendix B, Enhancement of Fire Safety in Residential Occupancies.)Requirements for the inspection, testing and maintenance of smoke alarms are referenced in CAN/ULC-S552, Standard for Inspection, Testing and Maintenance of Smoke Alarms.This Standard does not cover systems incorporating residential fire warning systems. Requirements for these systems are referenced in CAN/ULC-S540, Standard for Residential Fire Warning and Life Safety Systems: Installation, Inspection, Testing and Maintenance. (Refer to Appendix A, Explanatory Material, Clause A1.3 and Appendix D, Smoke Detector with Sounder Base.)