Study For The Division Of Civil Aircraft Painting Hangar Explosion Proof Area

There exist different kinds of combustibles in the painting hangar, when meeting with electric, burning or explosion will be caused. The paint and solvent used for painting are combustible liquid with volatility, when their mixture with air reach explosion limit, it is possible to explode or burn if meeting with electric igniter.So fire proof explosion electric facility should be used in explosion and fire hazardous area, in order to using proper types,we must have the hazardous area division.Contrast to German standard and American standard about painting hangar , there will be obvious difference with regulations in CCAR standard "Painting hangar design rules". We need study the division of its explosion proof area according to hazard rating, relative density, explosion lower limit and ventilating of the hazard articles in painting hangar in order to its useful and reasonable.In this article. First is the introduction about painting work. it include: surface treatment, painting and dryness, the next is the Electric fire and explosive hazard factor analysis. And then is the numeration to the hazard rating and ventilating of the hazard articles in painting hangar, the last is the suggest on the division of painting hangar explosion proof area.