What specifications and factors are primarily considered when determining whether floor-mounted explosion-proof distribution cabinets or automatic control cabinets can be installed in Class A plant areas?

This post was last edited by Polaris_ZERH on 2023-12-20 at 17:26. Clause 5.2 of GB50160 stipulates that 5.2.16 the control rooms, cabinet rooms, power distribution stations, laboratories, offices, etc. for equipment shall not be located in the same building as rooms containing Class A or Class B equipment. When the control room of the installation is built together with other buildings, an independent fire compartment should be provided.

It is definitely possible to install them. Taking cabinets used in control systems as an example, the DCS can be installed on-site; refer to clause 7.7.4 of SHT3092. However, if there are too many cabinets installed in one place, it is necessary to determine the level of the data center according to GB50174. Generally speaking, there are no issues with this, as seen in various electronic wiring systems such as SMART EIO from Zhongkong, OCS from Hollyland, and CHARM from Rosemount. The main factors to consider are: explosion protection, corrosion resistance, etc. External influencing factors include environmental conditions (ambient temperature, air humidity, altitude, water, foreign solids or dust, corrosion or pollutants, mechanical impact, vibration, plants or molds, animals, electromagnetic, electrostatic or ionizing interference, seismic effects, lightning strikes, air currents, wind), usage conditions (human capabilities, human body resistance, contact between the human body and the ground potential, emergency evacuation conditions, properties of the materials being processed or stored), and the structure of the building. The principle is the same for electrical cabinets as it is for motors: explosion protection must be ensured first