3 | Presentation Title | Presenter Name | Date | Subject | Business Use Only
Hot work needed to use work permit 需要平安作业许可证的热作业
• Welding, burning, or use of open flames in SNPT site except routine hot work in designated place. 在非指定的例行热作业区域的焊接、燃烧、或使用明火
▪ Flammable gas, vapor concentration shall be less than 10% of its
lower explosive limit (LEL) 可燃气体、蒸气浓度应小于爆炸下限的 10%;
▪ Sample test of combustible gas shall be representative; Combustible
the heat, sparks and slag, and to protect the immovable fire hazards如 焊接或切割物不可移动,附近火灾危险物也不能移动,应采取防护装置 来控制热、火花、焊渣以及不能移动的火灾危险物。
▪ If neither of the above can be accomplished, hot work is prohibited. 如
以上均不能满足,禁止热作业。
11 | Presentation Title | Presenter Name | Date | Subject | Business Use Only
Prior to work - Equipment Preparation 工作前准备-设备准备