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井下电气设备的检查维护和调整 | 2011-8-30 7:28:00
1 电气设备的检查、维护和调整,必须由电气维修工进行。高压电气设备的修理和调整工作,应有工作票和施工措施。
高压停、送电的操作,可根据书面申请或其他可靠的联系方式,得到批准后,由专责电工执行。(煤矿安全规程第488条)
2 井下防爆电气设备的运行、维护和修理,必须符合防爆性能的各项技术要求。防爆性能遭受破坏的电气设备,必须立即处理或更换,严禁继续使用。(煤矿安全规程第489条)
3 电气设备和电缆应按表12的规定进行检查、调整。检查和调整结果应记入专用的记录簿内。检查和调整中发现的问题,应指派专人限期处理。(煤矿安全规程第490条)
4 电气设备使用的绝缘油的物理、化学性能检测和电气耐压试验,每年应进行1次。
不符合标准的绝缘油必须及时处理或更换。油浸电气设备的绝缘油量应定期检查,并保持规定油量。
更换和试验矿用设备绝缘油应有记录。(煤矿安全规程第491条修改)
表12 电气设备和电缆的检查、调整规定
检查、调整项目 |
检查周期 |
使用中的防爆电气设备的防爆性能检查a |
每月1 次 |
配电系统继电保护装置检查整定 高压电缆的泄漏和耐压试验b |
每6个月1 次 每年1 次 |
主要电气设备绝缘电阻的检查 |
每6个月不少于1次 |
固定敷设电缆的绝缘和外部检查c |
每季1 次 |
移动式电气设备的橡套电缆绝缘检查d |
每月1 次 |
接地电网接地电阻值测定 |
每季1 次 |
新安装的电气设备绝缘电阻和接地电阻的测定e |
|
a 每日应由分片负责电工检查1 次外部。 b 负荷变化时应及时整定。 c 每周应由专责电工检查1 次外部和悬挂情况。 d 每班由当班司机或专责电工检查1 次外皮有无破损。 e 投入运行以前。 |
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