【2017年整理】油田现场用电安全.ppt

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【2017年整理】油田现场用电安全

油田现场用电安全;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;--直接电击;跨步电压; ;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;(二) 屏护;(三) 间距;架空线路 经过区;(三) 间距;(三) 间距;①基本安全用具 ;(四) 安全用具;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;中性点不直接接地系统(IT);L1;0.7m,跨越公路0.8m;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;外露可导电部分;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;①三相四线电源的中性点接地电阻值应符合要求。;②有足够的重复接地,重复接地电阻应符合要求。;③同一低压电网中保护方式应统一 。;④零线上不可设开关和熔断器。;⑤接零应“并联”接,不应“串联”接零。;;重复接地; 所有容易接近的裸导体包括设备外的裸导体互相连接起来使其间电位相同,防止接触电压。; 爆炸危险场所的接地装置,必须将设备的金属部分、金属管道、建筑物的金属结构全部接地(或接零),并连接成连续的整体形成等电位联接。 ;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;1000V以下;动力与照明要分开;;直流120V 交流50V以下 --42V --36V --24V --12V -- 6V;安全用具;;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile

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