Can a freezer be installed in an area with explosion hazards?
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This post was last edited by ljy3033 on 2017-12-7 at 16:12. There is a refined factory building (designed in accordance with building codes), and it is planned to install an additional chiller on the side of the building closest to the wall – without needing to consider nearby factories – in order to supply chilled water to the equipment inside the building. But this location is within the explosion-hazardous area defined by the electrical engineering field. Personally, I believe it is possible to set such a distance; the basis for this is the interpretation of Article 3.4.6 of the building codes, which states that \"the distance between outdoor equipment containing chemically flammable substances and the factory building to which it belongs is primarily determined based on process requirements, and no specific requirement is set out in these codes.\" I wonder what everyone thinks? Also, are there any relevant requirements in the petrochemical regulations?
Explosion-proof motors are used to meet explosion-proof requirements.
It should be sufficient to meet the explosion-proof requirements of the explosion-proof area.
The following solutions can be adopted: 1. The freezer should use explosion-proof electrical equipment； 2. Isolate it from the workshop through a firewall to ensure that the freezer is outside the explosion zone.
May I ask, is there any regulatory basis for this? If a separate building is constructed for the chiller, should fire separation distances be considered in accordance with those for Class C buildings (where the refrigerant is ethylene glycol, Class C) or Class A buildings (when the existing building is Class A)?
Whether it meets the requirements of petrochemical regulations or building codes. Moreover, in 2013 the Work Safety Supervision Bureau issued Document No. 76, which, in Article 15, stipulates that for projects with explosion hazards, the fire separation distances must meet the requirements of GB50160 at a minimum. However, the original plant area was designed in accordance with GB50016 (Building Code). I couldn’t find any relevant provisions in the petrochemical regulations.
Additionally, in 2013 the Work Safety Supervision Bureau issued Document No. 76, which, in Article 15, stipulates that for projects with explosion hazards, their fire separation distances must meet the requirements of GB50160 at a minimum. However, the original plant area was designed in accordance with GB50016 (Building Code). If new equipment is added, can the building code still be followed?
The first point can be achieved, but it’s not clear whether it’s possible to arrange them adjacent to each other (with the refrigeration units placed next to the original factory building). The second requirement cannot be met, as there is no other location available. If it is to be installed outside areas prone to explosions, then the spacing requirements specified in building codes or petrochemical industry regulations must be followed. Moreover, according to Document No. 76 issued by the Safety Supervision Bureau in 2013, it is necessary to adhere to the petrochemical industry regulations.
Explosion-proof motors should be used; for refined factory buildings, GB50160 should be given priority. Using firewalls on the walls where refrigerators are installed is sufficient to meet the requirements regarding fire separation distances