Roof fan
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Is it possible to eliminate the gas alarm on the roof if there is a fan there that is interlinked with the gas alarm on the ground?
I don’t think it can be replaced; existence is justified in each case – check the standards.
What if the fan’s output is not sufficient?
The meaning of the alarm generated by each testing point is different, and the specific gravity of the gas relative to air varies after a leak occurs. The design must take various factors into account comprehensively, and it should not be changed lightly.
Are you sure that the combustible gas detectors on the floor and roof are designed to detect one specific substance? ? ? There are no requirements stating that a combustible gas alarm must be installed on the roof. If not, the combustible gas alarm on the roof cannot be removed. The alarm device on the roof should also be interlocked with the fan. Actually, your company is doing quite well – even the fans are equipped with interlocks. In most companies, the fans run continuously, without any emergency fans being installed.
You need to check the design documents; disabling safety facilities without authorization could lead to accidents, and you won’t be able to take responsibility for that. It is estimated that the medium consists of mixed components; the light components are measured on the roof, while the heavy components are measured on the ground