Industrial Processing Areas (Class I, Division 1)

Industrial processing zones present continuous or frequent exposure to flammable gases or vapors. Mounting systems must withstand chemical exposure, heat, and vibration while maintaining Class I, Division 1 compliance.

Trunnion / Yoke Mounts

• Best for: Areas requiring adjustable lighting angles
• Benefits: Allows precise aiming of light; durable enough for heavy fixtures
• Applications: Chemical processing equipment, refineries, mixing stations
• Considerations: Must use materials compatible with surrounding chemicals; inspect for corrosion regularly

Ceiling / Pendant Mounts

• Best for: Fixed overhead lighting in processing rooms
• Benefits: Keeps fixtures clear of process equipment; provides broad and uniform coverage
• Applications: Manufacturing lines, process monitoring bays, clean industrial workspaces
• Considerations: Must anchor to structural ceiling members and maintain conduit seal integrity

Outdoor Hazardous Locations (Class I, Division 2)

Outdoor Class I, Division 2 areas are exposed to intermittent hazardous vapors during abnormal conditions such as leaks or venting. Mounts must provide stability, weatherproofing, and electrical grounding.

Pole Mounts

• Best for: Large outdoor hazardous areas
• Benefits: Provides elevated, wide-area illumination; ideal for expansive sites
• Applications: Loading docks, tank farms, refinery yards
• Considerations: Must include grounding, weatherproof fittings, and wind-rated poles

Wall Mounts with Angle Adjustment

• Best for: Perimeter lighting of hazardous facilities
• Benefits: Directs light precisely without additional structures; simplifies installation
• Applications: Building exteriors, perimeter walkways, control room access areas
• Considerations: Confirm building material strength and fastener compatibility

Dusty Environments (Class II Locations)

Class II locations involve combustible dust hazards. Mounting systems must seal electrical joints and prevent dust accumulation that could lead to ignition or overheating.

Integrated Junction Box Mounts

• Best for: Areas with airborne or settled combustible dust
• Benefits: Provides sealed electrical connections to prevent dust ingress
• Applications: Grain elevators, flour mills, pharmaceutical and plastics production
• Considerations: Must include dust-tight seals, gaskets, and routine cleaning schedules

Surface Mounts

• Best for: Low-ceiling or compact dusty environments
• Benefits: Simple installation with minimal protrusion; easy to maintain
• Applications: Packaging areas, bulk material conveyors, mixing rooms
• Considerations: Should feature dust-resistant lenses and enclosures rated for Class II use

Confined Spaces with Hazardous Materials

Confined or enclosed areas such as storage tanks and pipelines require lighting that minimizes obstruction while maintaining safe clearances and secure installation points.

Stanchion Mounts with Tilt Adjustment

• Best for: Narrow walkways, access platforms, and process skids
• Benefits: Provides focused illumination; resists vibration and accidental impact
• Applications: Pipeline corridors, tank interiors, pump galleries
• Considerations: Must accommodate limited space and maintain required clearance distances

Suspended / Hook Pendant Mounts

• Best for: Temporary or repositionable lighting in hazardous spaces
• Benefits: Offers flexibility in placement; reduces need for permanent infrastructure
• Applications: Maintenance areas, confined vessel inspections, turnaround projects
• Considerations: Must include proper strain relief, cable protection, and non-sparking hooks

Marine and Offshore Applications

Marine and offshore environments demand corrosion-resistant materials, shock resistance, and waterproof integrity due to constant exposure to salt, vibration, and motion.

Corrosion-Resistant Bracket Mounts

• Best for: Saltwater or high-humidity environments
• Benefits: Extends fixture life; withstands corrosive atmospheres and salt spray
• Applications: Offshore platforms, marine terminals, ship decks
• Considerations: Should use 316 stainless steel or aluminum with marine-grade coating

Deck / Floor Mounts with Vibration Resistance

• Best for: Areas subject to machinery or engine vibration
• Benefits: Maintains stability under heavy vibration; prevents premature loosening
• Applications: Engine rooms, pump rooms, compressor skids
• Considerations: Should include vibration dampeners and lock-fastening systems

Summary and Selection Guidance

Each hazardous location presents unique challenges that influence mounting selection. Consider the operational environment, hazard class, maintenance requirements, and structural availability before choosing a fixture mount. Proper selection ensures compliance with NEC/CEC standards, improves illumination efficiency, and enhances worker safety.

Need Expert Help?

The engineering team at WorkSite Lighting designs explosion-proof lighting systems for every hazardous environment—from refineries to offshore platforms. Contact us to discuss your site requirements, review drawings, or request a customized recommendation.

• Contact WorkSite Lighting