Does aircraft shelters with opened walls structure (4-sides) are treated as an enclosed hangar space with regards hazardous classification? I was trying to do a search on that but nothing came up. It appears they might fuel the aircraft from a portable fuel truck while it's in the shelter. We have some electrical equipment such panelboards, transformers and a switchboard. The switchboard is a floor mounted which will be with the CID2 haz. class zone (up to 18" AFF). Any thoughts? Thanks,
Air Craft Shelters
- Thread starter faresos
- Start date
- Location
- Illinois
- Occupation
- retired electrician
Are the wall permanently opened, or are there doors. If there are no doors, I fail to understand how it could be an enclosed space.
- Occupation
- Licensed Electrician
I worked on one permanent hangar and one temporary hanger and the classified locations were determined by where the location of the aircraft would be parked and dimensions relative to that. None of the electrical equipment along the walls of the hangar or any of the conduits crossed into the classified area.
yes, no walls just wide open. it has only roof sitting on steel columns at each corner.
Totally agree, that's why I'm confused why this space is classified similar to an enclosed hangar application.
- Location
- Wisconsin
- Occupation
- PE (Retired) - Power Systems
I dont think an area classification can be made using only the NEC. IMO the NEC tells you what to do after someone else or other codes have made that decision. What does the Fire Marshall call the area?
Yes, I have performed the classification of areas, but it was much more complicated than just using one reference. For many areas there are other building and fire codes, particularly egress and ventilation, that may also come into play.