400-060-0103

施工电焊安全操作

来源:赣州新江南教育集团 时间:08-09

施工电焊安全操作

1、作业人员  

电焊作业属于特种作业,作业人员必须经专业安全技术培训,考试合格,持《特种作业操作证》方准上岗独立操作,并按规定穿戴绝缘防护用品;  

2、电焊钳  

使用合格电焊钳。能牢固地夹紧焊条,与电缆线连接可*,这是保持焊钳不异常发热的关键。焊钳要有良好的绝缘性能,禁止使用自制简易焊钳;  

3、为避免弧光对人体的辐射,不得在近处直接用眼睛直接观看弧光或避开防护面罩偷看;多台焊机作业时,应设置不可燃或阻燃的防护屏;采用吸收材料作用室内墙壁饰面以减少弧光的反射;工作场所的照明,消除因焊缝视线不清点火后再戴面罩的情况发生;不得任意更换滤光片色号;改革工艺,变手持焊为自动或半自动焊,使焊工可在远离施焊地点作业;  

4、对金属烟尘和有害气体的防护,根据不同的焊接工艺及场所合理选择适当的防护用品;在技术措施上选择局部和全面通风方法;在工艺上选用污染环境小或机械化。自动化程度高以及采用低尘低毒焊条等措施来降低烟尘浓度和毒性;  

5、为防止焊接灼烫,应穿好工作服、工作鞋、戴好工作帽。工作服应选用纯棉且质地较厚,防烫效果好的。注意脚面保护,不穿易溶的化纤袜子。焊区周围要清洁,焊条堆放要集中,冷热焊条要分别摆放。处理焊条渣时,领口要系好,戴好防护眼镜,减少灼烫伤事故;  

6、焊接现场事先移去易燃易爆物品,高空焊接下方应设置接火盘。房屋闷顶内以及易燃物堆垛附近不宜进行焊接作业;可燃气体的管道和设备与其它设备互相连接时,应将连接管道拆除或阻绝;  

7、为避免触电事故的发生,焊机接地及各接线点要接触良好。电绝缘外套无破损,改变焊机接头需要改接两次回线;转移工作地点或更换焊条应戴好绝缘手套;在金属容器或金属结构上以及狭小的工作场所焊接时,应采用橡胶垫、戴绝缘手套、穿绝缘鞋;电焊钳外壳绝缘要可*;雨雪天不能在露天作业;不得将自身与机器传动部分等作为焊接回路的一部分;电焊设备安装、修理及检查由电工进行;不得擅自拆修或更换险丝;  

8、焊接电缆  

①焊接电缆在使用多股细铜线无接头电缆时,与电焊机接线柱采用接线鼻连接压实,防止随意缠绕造成的松动接触不良、过热、火花现象。接线栓上应设置防护罩。  

②焊接电缆长度一般不超过20~30m,过长会加大导线压降。  

③焊接电缆横过通道时,必须采取防护套,穿管等保护措施。  

④严禁使用脚手架、金属栏杆、轨道及其他金属物搭接代替导线使用,防止因接触不良引起火灾和造成触电事故;  

9、焊接不允许超载  

电焊机使用过程中不允许超载,否则将会因过热而烧毁电焊机或造成火灾,以及超载造成绝缘损坏,还可能引起漏电而发生触电事故;  

10、焊接前,应先检查焊机设备和工具是否安全,如焊机接地及各接线点接触是否良好,焊接电缆绝缘外套有无破损等;  

11、在设备上进行焊接前,应先把设备的接地或接零线拆掉,焊接完后再恢复;  

12、进行电焊作业前,应检查作业环境,清除危险因素和设置监护人员。当与其他人员和有关设施过近时,应采用屏护和安全间隔等作业安全;当高处焊接作业时,必须挂好安全带;  

13、更换焊条时,焊工应戴绝缘手套;  

14、在金属容器内金属结构上及其他狭小工作场所焊接时,触电的危险性十分大,必须采取专门的防护措施。如采用橡皮垫、戴皮手套、穿绝缘鞋等,以焊工身体与焊件间的绝缘。禁止使用简易无绝缘外壳的电焊钳;  

15、改变焊机接头、更换焊件需要改接二次回路时,或转移工作地点,焊机检修暂停工作或下班时,必须切断电源后方可进行操作;  

16、焊机应设置在防雨和通风良好的地方。焊接现场不准堆放易燃易爆物品;  

17、交流弧焊机一次侧电源线必须绝缘良好,不得随地拖拉,长度应不大于5米,进线处必须设置防护罩;  

18、焊机二次接线宜采用YHS型橡皮护套铜芯多股软电缆,电缆的长度应不大于30米;  

19、根据施工需要,电焊机宜按区域或标高层集中的设置,并应编号;  

20、布置在室外的电焊机应设置在干燥场所,并应设棚遮蔽;  

21、电焊机的外壳应可*接地,不得多台串联接地;  

22、电焊机各线对电焊机外壳的热态绝缘电阻值不得小于0.4MΩ;  

23、电焊机的裸露导电部分和转动部分应装设安全保护罩,直流电焊机的调节器被拆下后,机壳上露出的孔洞应加设保护罩;  

24、电焊机的电源开关应单独设置,直流电焊机的电源应采用启动器控制。

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  1. 请求信息 : 2026-06-03 07:40:26 HTTP/1.1 GET : http://www.eduml.com/s/18757/n/124753.html
  2. 运行时间 : 0.031810s [ 吞吐率:31.44req/s ] 内存消耗:363.74kb 文件加载:137
  3. 缓存信息 : 0 reads,0 writes
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  1. CONNECT:[ UseTime:0.000279s ] mysql:host=127.0.0.1;port=3306;dbname=baijiao_branch_collect;charset=utf8
  2. SHOW FULL COLUMNS FROM `fqi_school` [ RunTime:0.001010s ]
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  4. SHOW FULL COLUMNS FROM `fqi_school_class` [ RunTime:0.000666s ]
  5. SELECT * FROM `fqi_school_class` WHERE `school_id` = 18757 [ RunTime:0.000226s ]
  6. SHOW FULL COLUMNS FROM `fqi_school_campus` [ RunTime:0.000782s ]
  7. SELECT * FROM `fqi_school_campus` WHERE `school_id` = 18757 [ RunTime:0.000238s ]
  8. SHOW FULL COLUMNS FROM `fqi_school_news` [ RunTime:0.000792s ]
  9. SELECT `a`.*,`content` FROM `fqi_school_news` `a` LEFT JOIN `fqi_school_news_content` `b` ON `b`.`content_id`=`a`.`content_id` WHERE `school_id` = 18757 AND `a`.`content_id` = '124753' AND `news_status` = 1 AND `school_status` = 1 LIMIT 1 [ RunTime:0.000648s ]
  10. (select content_id,news_name,school_id from fqi_school_news where school_id = '18757' and content_id < '124753' and site_id <= '7' order by content_id desc limit 1) union all(select content_id,news_name,school_id from fqi_school_news where school_id = '18757' and content_id > '124753' and site_id <= '7' order by content_id asc limit 1) [ RunTime:0.000519s ]
  11. SHOW FULL COLUMNS FROM `fqi_school_course` [ RunTime:0.000867s ]
  12. SELECT * FROM `fqi_school_course` WHERE `school_id` = 18757 AND `site_id` = 7 AND `course_status` = 1 AND `school_status` = 1 ORDER BY `course_id` DESC LIMIT 4 [ RunTime:0.000447s ]
  13. SELECT * FROM `fqi_school_course` WHERE `school_id` = 18757 AND `school_status` = 1 AND `course_status` = 1 ORDER BY `course_id` DESC LIMIT 8 [ RunTime:0.000219s ]
  14. SELECT * FROM `fqi_school_news` WHERE `school_id` = 18757 ORDER BY `click` DESC,`news_id` DESC LIMIT 5 [ RunTime:0.000197s ]
  15. SELECT `content_id`,`news_name`,`a`.`school_id`,`b`.`school_name` FROM `fqi_school_news` `a` LEFT JOIN `fqi_school` `b` ON `b`.`school_id`=`a`.`school_id` WHERE `a`.`site_id` = '7' AND `b`.`school_status` = '1' AND `news_status` = 1 AND `content_id` < 124753 ORDER BY `content_id` DESC LIMIT 20 [ RunTime:0.021788s ]
0.032118s