2014年10月28日,宁波市北仑区枫林污水干管及泵站工程管道清淤作业较大中毒死亡事故(以下简称“10·28”事故),造成4人死亡,1人轻度中毒。该事故就发生在笔者工作单位所在的小港街道,作为事发当天较早进入现场的人员之一,笔者目睹和参与了接警、施救以及事故调查工作。近期,有限空间作业事故有抬头趋势,笔者 On October 28, 2014, 4 deaths and 1 light were caused by the relatively large poisoning death from the dredging of the sewer pipe and pump station of Fenglin in Beilun District, Ningbo City (hereinafter referred to as “10.28” accident) Degree poisoning. The incident occurred in the author’s work unit where the small street, as the incident the day earlier entered the scene one of the staff, the author witnessed and participated in the alarm, rescue and accident investigation. Recently, limited space operations accidents have a rising trend, the author