Safe work – working in containers
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When it is necessary to work inside the container, it must be ventilated until conditions suitable for human entry are achieved. Translation: When personnel need to work inside the vessel, air should be introduced until the conditions required for them to enter and work there are met. Does the underlined part have a chinenglish vibe? :D
When it is necessary to work inside the container, it must be ventilated until conditions suitable for human entry are achieved. When workers have to work inside the vessels, the vessels shall be aerated until relevant requirements for such work are fully satisfied.:lol
It seems the word \"ventilated\" should be added
The second half can be translated as “reach the requirement of normal oxygen content” for better clarity!
Aeration: Introducing air into a system; according to Wikipedia, this practice is often used with solids and liquids, though it’s uncertain whether it can be applied in the context of stealth. Ventilation: The circulation of air. The person asking the question needs to clarify what exactly is meant by “aeration” here – does it simply refer to allowing air to circulate or actually introducing air into the system? This post was last edited by lihx_susan on 2009-3-17 14:18]
The common use of aeration refers to introducing air into a liquid. Ventilation doesn’t seem appropriate either; the original statement refers to introducing air into the container, which seems to be more than just simple ventilation
air circulation may be provided
The translator on the second floor agrees; when workers have to work inside the vessels, the vessels shall be aerated until the relevant requirements for such work are fully satisfied. This phrase is often used in formal papers, and the passive voice gives it a more formal tone
....The container must be ventilated until it meets the requirements for human entry. ..... the vessels shall be adequately ventilated until the pre-entry tests result is acceptable.
When it is necessary to work inside the container, it must be ventilated until conditions suitable for human entry are achieved. If personnel are to work inside the vessel, the vessel must be ventilated before personnel enter, until the requirements are met.
Enough about English; let’s talk about some basic safety knowledge :) When performing maintenance tasks in containers, especially when entering the container itself, this constitutes a type of work in a confined space. It is necessary to carry out the preparatory steps required before issuing the permit for working in such confined spaces. These steps generally include the following: 1. Empty the container and replace its contents with nitrogen until the hydrocarbon level reaches an acceptable level – depending on the nature of the substances inside the container, the general requirement is 20% of the Lower Explosive Limit (LEL). For example, if the LEL for a certain substance is 1.0%, then a level of 0.2% can be considered acceptable; alternatively, a safe level as determined by a detector can also be used. 2. Completely isolate the container – this means physically separating it, by sealing all entrances and exits with plugs. 3. Remove the manhole cover, and once it has been confirmed that the area is safe from explosions, introduce air into the container until the oxygen level reaches an acceptable level – at least 19%. 4. After ensuring that all safety measures have been taken, safety officers issue a permit for working in the confined space. Only after this permit is given to the workers can they begin working. 5. A dedicated person should supervise the work, and anyone who notices any abnormalities should evacuate immediately. 6. If possible, forced ventilation should be maintained during the work. Please determine, based on your own situation, which part of this text needs to be translated
Airing in means introducing air until the air content inside reaches a level where it is safe for operators to enter! ! :D, Item 3 mentioned on Floor 11: 3. Open the manhole, and once explosion testing shows satisfactory results, introduce air into the container to replace the contents with air having an appropriate oxygen content – at least 19% or more. Last edited by niulijun117 on 2009-3-18 08:57.]
It is recommended that the original poster download a copy of the Confined Space Entry Procedure from the internet; there are many such guidelines available. Files cannot be uploaded here.