Issues regarding the layout of distribution rooms in explosion-proof factories
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In the fluorine production plant using electrolysis, due to space constraints, it is planned to locate the power distribution room on the first floor and the electrolysis hall on the second floor. Someone mentioned that the regulations state that power distribution rooms must not be placed below explosion-proof buildings; I couldn’t find such regulations – is that correct?
Looking forward to expert answers to learn from
According to clause 5.3.5 of the latest design standards, GB 50058-2014 \"Design Code for Electrical Installations in Explosive Atmospheres\", the design of substations, distribution stations, and control rooms shall comply with the following requirements: 1. Substations, distribution stations (including distribution rooms, the same hereafter), and control rooms should be located outside areas with explosive atmospheres; when a positive pressure exists, they can be situated in Zones 1 and 2. 2. In explosive gas environments where combustible materials are heavier than air, the floor of the equipment layer in substations, distribution stations, and control rooms located in Zone 2 adjacent to the explosion hazard area shall be 0.6 meters above the outdoor ground level.
Thank you. What are Zone 1 and Zone 2?
Zoning of explosion areas! Gases are divided into zones 0, 1, and 2
In principle, the workshop power distribution room is located on the first floor. Reference.
Please refer to GB50016-2014 Code for Fire Protection Design of Buildings, which specifies clearly: 3.3.8 Substations and distribution stations shall not be located within or adjacent to Class A or Class B factories, nor shall they be placed in areas prone to explosive gases or dusts. For 10 kV and below substation and distribution stations designed specifically for Class A and Class B factories, when separated by firewalls without doors, windows, or openings, they may be placed adjacent to each other, and must comply with the provisions of current standards such as the \"Code for Design of Electrical Installations in Explosive Atmospheres\" GB 50058. When it is necessary to install windows in the power distribution room of a Class B factory building within a firewall, Class A fire-resistant windows shall be used.