机电设备防爆检查要点--qsf999的安全生产小屋

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机电设备防爆检查要点 | 2013-3-20 9:25:00

机电设备防爆检查要点

一严重失爆

1 机电设备在安装验收时,必须按照规定和防爆细则要求,严格检查其防爆性能,保证其完好合格.

2 继电器的整定,保险丝的选择必须合格,不允许甩掉任何电器保护装置,严禁用铜,铁,铝丝代替保险丝.

3 井下供电要做到三专两闭锁和风机自动倒台,做到三无,四有,两齐,三全,三坚持.

4 井下供电严禁鸡爪子，羊尾巴，明接头，老鼠洞。

5 无档板,无密封圈.

6 螺丝全部松动,或盖会移动.

二失爆

⑴ 防爆壳有变形.裂纹,开焊.

⑵ 便用不合格的部件

⑶ 防爆外壳有锈皮脱落

⑷ 闭锁装置不灵,起不到闭锁作用.

⑸ 去掉防爆电机接线座

⑹ 透明件松动,破裂,使用普通玻璃

⑺ 电动机接线盒盖上反.

⑻ 改变原设计空气间隙,爬电距离不符合要求.

⑼ 各种防爆设备参数不符合要求

⑽ 防爆结合面有油漆,伤痕超过规定.

⑾ 缺一个螺丝或弹簧垫.

⑿ 弹簧垫没压平或螺丝松动

⒀ 弹簧垫与螺丝不适应

⒁ 档板直径比进线嘴内径小2㎜以上,档板厚度小于2㎜

⒂ 档板放在密封圈里边或金属圈放在档板与密封圈之间

⒃ 密封圈硬度老化,失去弹性且变形.

⒄ 进线嘴压紧后没有余量或不压紧密封圈

⒅ 密封圈内径大于电缆外径超过1㎜

⒆ 密封圈端面与器壁接触不严.

⒇ 密封圈割开套在电缆上.

21 橡套电缆的护套损坏,露出芯线

22 橡套电缆护套损坏伤痕深度达最薄处二分之一以上,长度达20㎜或沿围长三分之一以上

23 电缆在进线嘴处可轻易将其来回抽动

24 螺旋式进线嘴拧进不到六扣

25 螺旋式进线嘴压不紧,用手能拧进半扣以上

26 防爆插销电源负荷反接

27 防爆灯具将压口改为螺口.

28 整定值或保险丝选择不正确.

29 接地缺少或不符合规定

30 电机综保不使用.

By:qsf999 | 阅读全文 | 回复(15) | 引用通告 | 编辑

Re:在漫画中识别身边的违章 | 2016-10-22 15:11:54

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By:quycg(游客) | 个人主页 | 引用 | 返回 | 删除 | 回复

Re:在漫画中识别身边的违章 | 2016-10-22 11:50:10

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Re:在漫画中识别身边的违章 | 2016-10-16 19:14:34

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Re:在漫画中识别身边的违章 | 2016-10-16 17:14:04

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Re:在漫画中识别身边的违章 | 2016-10-16 2:03:21

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By:ozqtw(游客) | 个人主页 | 引用 | 返回 | 删除 | 回复

Re:在漫画中识别身边的违章 | 2016-10-9 22:44:51

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By:hxcdh(游客) | 个人主页 | 引用 | 返回 | 删除 | 回复

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Re:在漫画中识别身边的违章 | 2016-10-1 12:42:23

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By:dikos(游客) | 个人主页 | 引用 | 返回 | 删除 | 回复

原创 | 2016-9-30 15:37:40

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By:原创(游客) | 个人主页 | 引用 | 返回 | 删除 | 回复

原创 | 2016-9-28 20:55:13

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By:原创(游客) | 个人主页 | 引用 | 返回 | 删除 | 回复

原创 | 2016-9-6 21:20:49

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By:原创(游客) | 个人主页 | 引用 | 返回 | 删除 | 回复

Re:机电设备防爆检查要点 | 2013-4-2 8:17:26

ertrtr

By:qsf999 | 个人主页 | 引用 | 返回 | 删除 | 回复

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