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深圳龙华701触电事故

  • 2026-06-19 06:36:03
深圳龙华701触电事故

案例出处公开透明。建议先自行研究几遍原版,再往下阅读,才会有共鸣。发文目的,通过学习案例,举一推三,结合自身实际,在设计安装售后的环节,积极的预防或减少同类户外公共区域触电事故的发生。

第一,大致经过,案中人雨天带电作业,在处理户外基站停电故障时,触碰带电配电柜外壳,导致触电事故发生。

上图是报告中提供的部分现场图片。

第二,技术分析。

1,天时因素。

在日常设计时,既要参考相关国标,又要综合考虑当地各种气候时节因素。25年设计施工过一个案例,围绕厂房内办公区插座的高度,提高到了离地面1400,方便施工,高于办公桌的高度,方便日常办公,容易发现电隐患。同行的设计安装,离地400左右,一直有个疑问,蹲在地上施工不累吗?交工后,园区遇到了一场突发暴雨,河道堵塞,洪水冲进厂房内……离地1400的高度,高枕无忧。

701案例中,雨天作业,行业大忌。雷雨天气,按照之前的国网安规,禁止作业。

日落西山,视野不好,现场照明条件不好,容易造成误判。

晚上尽量避免看现场,施工,人的精力跟不上了,再好的照明也比不上太阳自然光。(孙夕庆博士,帕兰斯光科技,希望能够平平安安,打造出自己的民族品牌)

2,地利因素。

按照报告中的描述,因各种因素,现场低洼积水,排水不畅,水汽上扬,间接导致线缆绝缘受潮。

24年设计安装过一个餐饮行业,厨房高温高湿,水汽集聚的特性,需要额外采取排风,降温降湿的措施,像PE线和RCD的正确安装,日常维护。

3,人的因素。

假设案中人能够熟悉安规,作业前先反复验电,正确佩戴绝缘手套,也许能够避免或减轻触电危害。

接触过某企业的用电规章,每天专人合闸断闸,但日常缺乏相关维护和培训。25年上海EP展会上的一大亮点,运用物联网,自动合闸断闸,有些危害就可以避免或减轻。

第三,户外公共区域,产权方的日常管理。

报告中描述,配电柜无警示标识,柜门门锁故障。

公共区域,各种因素太多,需设置醒目的警告标识,物理隔绝措施,像遮拦。巡视记录措施,像监控。

第四,带电作业。

反复看了报告中带电作业的描述,很难串联起来带电作业的前因后果。同理类推,日常检修过程中,需要先带电查明故障,后期再断电更换维护,报告中的“带电作业”应该是这么个意思。

第五,报告中主要引用了11版电力安规(电力线路),有机会,建议阅读国网新安规,实操效果更强一些。

第六,接地系统。

报告中提到了接地系统失效,无RCD设置。个人感觉,报告中提供的相关图表信息,不全面。某次设计施工,产权方问,为什么装了那么多漏保?PE线不就是把铁埋地里?

前几天,围绕单相三插工业风扇,一负责人认为,用护套线即可,地线用铁丝和风扇金属外壳连接,和大地连接,用什么3芯线,用什么三插?……

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  1. CONNECT:[ UseTime:0.000651s ] mysql:host=127.0.0.1;port=3306;dbname=c460;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000840s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000391s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000383s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000590s ]
  6. SELECT * FROM `set` [ RunTime:0.000237s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000514s ]
  8. SELECT * FROM `article` WHERE `id` = 610186 LIMIT 1 [ RunTime:0.001467s ]
  9. UPDATE `article` SET `lasttime` = 1782068475 WHERE `id` = 610186 [ RunTime:0.003198s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.005878s ]
  11. SELECT * FROM `article` WHERE `id` < 610186 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000604s ]
  12. SELECT * FROM `article` WHERE `id` > 610186 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000510s ]
  13. SELECT * FROM `article` WHERE `id` < 610186 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.010278s ]
  14. SELECT * FROM `article` WHERE `id` < 610186 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.003671s ]
  15. SELECT * FROM `article` WHERE `id` < 610186 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.003125s ]
0.104347s