《建筑施工用电安全案例.ppt

临时用电安全与事故预防 电缆线破损露芯，绑扎不符合规范。 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 临时用电安全与事故预防 电缆线接头长时间浸泡在水中 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 临时用电安全与事故预防 过路高压线保护措施不到位 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 临时用电安全与事故预防 电源线压在吊车履带下，地面上泥泞积水多，存在安全用电隐患 。 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 临时用电安全与事故预防 电流通过人体的心脏、肺部和中枢神经系统的危险性比较大，特别是电流通过心脏时，危险性最大。所以从手到脚的电流途径最为危险。 触电还容易因剧烈痉挛而摔倒，导致电流通过全身并造成摔伤、坠落等二次事故。 一、电流对人体的伤害 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. U 高压触电的两种形式 高压电弧触电 高压跨步触电 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 火线 零线 220V常规触电情况 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 单 线 触 电 有 较 大 电 流 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 双线触电 有较大电流 危险！ Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 没问题啊！ Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 临时用电安全与事故预防 二、防止触电的措施 1 绝缘、屏护和间距 是最为常见的安全措施 1、绝缘 它是防止人体触及绝缘物把带电体封闭起来。瓷、玻璃、云母、橡胶、木材、胶木、塑料、布、纸和矿物油等都是常用的绝缘材料。 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 临时用电安全与事故预防 注意： 很多绝缘材料受潮后会丧失绝缘性能或在强电场作用下会遭到破坏，丧失绝缘性能。 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 临时用电安全与事故预防 保持绝缘部分 干燥 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client