QSW-6300 Series Switches Hardware Installation and Reference Guide
Appendix
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7.4. Appendix E Site Selection
The equipment room should be at least 5 km away from heavy pollution sources, such
as the smelter works, coal mine, and thermal power plant. The equipment room should
be at least 3.7 km away from medium pollution sources, such as the chemical factory,
rubber factory, and electroplating factory. The equipment room should be at least 2 km
away from light pollution sources, such as the food factory and leather plant. If these
pollution sources are unavoidable, the equipment room should be located on the
windward side of the pollution sources perennially with advanced protection.
The equipment room should be at least 3.7 km away from the sea or salt lake. Otherwise,
the equipment room must be sealed, with air conditioner installed for temperature control.
Saline soil cannot be used for construction. Otherwise, you should select devices with
advanced protection against severe environments.
Do not build the equipment room in the proximity of livestock farms. Otherwise, the
equipment room should be located on the windward side of the pollution source
perennially. The previous livestock house or fertilizer warehouse cannot be used as the
equipment room.
The equipment room should be firm enough to withstand severe weather conditions
such as windstorm and heavy rain. The equipment room should be away from the dusty
road or quarry. If the dust is unavoidable, keep the door and window away from the
pollution source.
The equipment room should be away from the residential area. Otherwise, the
equipment room should meet the construction standard in terms of noise.
Make sure that the air vents of the equipment room are away from the sewage pipe,
septic tank, and sewage treatment tank. Keep the equipment room under positive
pressure to prevent corrosive gas from entering the equipment room to corrode
components and PCBs.
Keep the equipment room away from industrial boilers and heating boilers.
The equipment room had better be on the second floor or above. Otherwise, the
equipment room floor should be 600 mm higher than the highest flood level ever
recorded.
Make sure there are no cracks or holes on the wall and floor. If there are cable entries
on the wall or window, take proper sealing measures. Ensure that the wall is flat, wear-
resistant, and dust-free, which should be up to the standard for flame retarding,
soundproofing, heat absorption, dust reduction, and electromagnetic shielding.
Keep the door and the window closed to make the equipment room sealed.
The steel door is recommended for soundproofing.
Sulfur-containing materials are forbidden.
Keep the air conditioner from blowing wind straight toward the switch.
