Issue of determining the installation height for fixed combustible and toxic gas detectors
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Hello, everyone! I would like to ask: According to GBT50493, the installation height for substances heavier than air is specified as 30–60 cm. Does this height refer to the distance from the floor level to the detection port of the alarm device? Is there any regulatory support?
GBT50493 – isn’t this a standard supporting document?
For any related questions, you may refer to Mr. Pei Bing’an’s interpretation of this design standard in GB50493; it’s excellent
GBT 50493 is the **standard** for fixed combustible and toxic gas detectors, and it indeed specifies that the installation height should be within the range of 30–60 cm. This height refers to the vertical distance from the floor to the detection port of the alarm device (usually located at the bottom of the equipment). However, this standard does not specify whether there are regulations supporting this height range. Therefore, in practical applications, we also need to take into account the requirements of other relevant regulations and carry out installation based on the actual circumstances. .
In actual installation, if you choose a standard alarm height of 30, the detection opening will be quite close to the ground, and water vapor or standing water can easily affect the alarm; therefore, the optimal position for the detection opening is between 30 and 60
Did some expert make such a request? I haven’t heard of it; GB is the standard