办理作业许可证才能进行动火作业。
必须提供持续的和足够的气源，因为动火作业会消耗受限空间中的氧气。
Continuous and adequate air supply must be provided as hot work will deplete oxygen content in the confine space.
待采用的动火作业技术及所需控制以避免作业过程中造成的不能接受的工件性能的削弱；
The hot work technique to be used and the control necessary to avoid unacceptable weakening of the work piece during the work.
受限空间内的所有动火作业必须要有动火作业许可证和受限空间作业许可证及作业危险性分析。
All hot work in confined space must have work Permits of the hot work and confined space and Job Hazard Analysis.
总结了油库设备焊割动火作业中油蒸气的清除、隔离方法及其组织实施要点，有利于油库整修改造过程中焊割动火作业的安全管理。
This paper summarizes oil vapor cleaning method, isolation method and the key points of implementation during the welding of oil depot equipment.
一个动火证只适用一个班次的作业，最多一天有效。
V one permit should never be valid more than of one working shift.
一个动火证只适用一个班次的作业，最多一天有效。
V one permit should never be valid more than of one working shift.
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