Features
Utilizes fully welded housings or special sealing techniques to prevent ingress of corrosive gases.The optical chamber and driver compartment are often physically isolated.All exposed metal surfaces,including poles and bolts,receive a multi-layer heavy-duty coating system(e.g.,epoxy primer+polyurethane topcoat or specialized fluoropolymer).Electrical components may be potted.Smooth structural design facilitates rain cleaning.
Specifications
Materials and coatings must resist specific chemical agents.Luminaires require high IP ratings and may need air-tightness testing.As landfills can generate combustible gases(methane),explosion-proof considerations may apply in specific zones.High-efficacy LEDs with relatively low heat output are preferred to reduce internal temperature rise and the need for vents.
Applications
Used over landfill working faces,leachate treatment stations,around aeration tanks and clarifiers in wastewater plants,and outside sludge processing buildings.Lighting must provide safety for nighttime operations and inspections,while the fixtures themselves must withstand prolonged exposure to chemically aggressive atmospheres.
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