Environmental protection should be based on the real installation. A fixture inside a clean control cabinet, a machine light exposed to coolant, and an outdoor industrial luminaire experience very different conditions.
Ingress Protection
Dust and Water Exposure
IP classifications are commonly used to describe defined levels of protection against solid objects and water ingress.
The required level depends on how the product will actually be installed, cleaned, handled, and exposed during operation.
Sealing
Environmental protection depends on every opening in the assembly. Covers, optical windows, end caps, fasteners, connectors, cable glands, vents, and service panels all create interfaces that must be considered.
Enclosures
Drivers, supplies, controls, and terminal systems may be located in a dedicated enclosure rather than inside the luminaire.
Industrial electrical enclosures provide environmental and mechanical protection for many types of electrical equipment.
Chemicals & Oils
Coolants, oils, cleaning agents, solvents, process chemicals, and airborne contamination can affect polymers, seals, coatings, adhesives, wiring, and transparent windows.
Lighting Material Selection →Mechanical Exposure
Machine-mounted lighting can experience continuous vibration, intermittent shock, moving cables, tool contact, handling, and accidental impact.
Fasteners, connectors, boards, optics, windows, and mounting brackets should be evaluated as parts of one mechanical system.
Environmental Testing
Product testing can evaluate temperature, environmental cycling, contamination, ingress, mechanical exposure, or other requirements defined by the design.
Industrial environmental test chambers and test chambers are examples of equipment used for controlled environmental testing.
Selection