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[安全生产技术]知识点汇集(14) | 2010-10-23 8:45:00
[安全生产技术]知识点汇集(14)
131、隧道、人防工程、高温、有导电灰尘或灯具离地面高度低于2.5m的场所的照明,电源电压不应大于36v.
132、禁火作业除了生活区外的其他区域不小于25m.
133、现浇钢筋混凝土梁、板,当跨度大于4m时,模板应起拱。
134、升降机每组(或每道)揽风绳不应少于4根,沿架体360度范围内布局。
135、水煤气、半水煤气的含氧量达到1%时必须停炉。
136、易燃性气体中的氧含量达到或超过4%时,禁止装瓶。
137、易燃介质是指与空气混合的爆炸下限小于10%,或爆炸上限和下限之差大于等于20%的气体。
138、永久气体气瓶内气体在基准温度20摄氏度下应不超过其公称工作压力。
139、300mm以下的短波紫外线可引起紫外线眼炎。
140、在特别潮湿的场所工作的照明,照明电压不得大于12v.
- 上一篇:[安全生产技术]知识点汇集(13)
- 下一篇:[安全生产技术]知识点汇集(15)

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