Open-Pit Copper Mine Deploys RFEPL8280 600W LED Flood Lights for 24/7 Haul Road Safety
June 28, 2026
Project Background
One of South America's largest open-pit copper mining operations was experiencing a critical safety issue on its primary haul road network—a 14-kilometer system of steep-gradient routes traversed by 300-tonne dump trucks around the clock. The existing high-pressure sodium flood lights, installed over a decade earlier, had degraded to the point where average illuminance on critical curve sections had fallen below 5 lux, creating hazardous operating conditions during night shifts and heavy weather.
The Challenge
- Continuous 24/7 operation with no shutdown windows—all installation work had to be completed during brief maintenance intervals
- Extreme environmental conditions: heavy dust from blasting and truck traffic, vibration from nearby processing equipment, and ambient temperatures ranging from -5°C at high-altitude night shifts to +50°C in direct equatorial sun
- Explosion proof certification required for sections adjacent to fuel storage and ammonium nitrate handling zones (Ex db mb IIb T6)
- Existing HPS fixtures delivering less than 25 CRI, severely limiting operators' depth perception and hazard recognition
The Solution: RFEPL8280 600W LED Flood Lights with 60° Beam
After evaluating multiple vendors through a competitive trial, the mine's electrical engineering team selected 40 RFEPL8280 600W units with a 60° beam angle configuration for the haul road network. The selection criteria and matching specifications:
| Site Requirement | RFEPL8280 600W Capability |
|---|---|
| High Lumen Output for Wide-Area Coverage | 100-120 lm/W with LUMILEDS chips, LM-80 certified |
| ATEX Zone 1 Certification | Ex db mb IIb T6, CE, ROHS, CCC, ATEX |
| Dust & Water Ingress Protection | IP65 with WF2 corrosion rating |
| Surge Protection | 6KV lightning/surge protectors |
| Vibration Resistance | Robust aluminum + glass construction, 21kg solid build |
| Flexible Mounting | Bracket, wall, flange, and guardrail mounting |
| Beam Control | 60° beam angle for targeted road coverage; 30° and 90° options for specialized zones |
Deployment Strategy & Results
The 40 units were installed over eight weekends using a staged approach that maintained minimum safe illumination levels throughout the transition. The pole-mounted RFEPL8280 600W units, positioned at 35-meter intervals on critical curve sections and 50-meter intervals on straight gradients, delivered the following measured outcomes:
- Illuminance Improvement: Average road surface illuminance increased from <5 lux to 28 lux on curves and 18 lux on straights—exceeding the mine's internal safety target of 15 lux minimum
- Energy Performance: Total lighting load reduced from approximately 46kW (legacy HPS) to 24kW, generating annual savings of ~96,000 kWh with PF ≥0.95 ensuring minimal reactive power penalties
- Safety Incident Reduction: Night-shift haul truck incidents decreased by 47% in the 12 months following installation compared to the preceding 12-month period
- Maintenance Freedom: 50,000-hour L70 lifespan eliminated planned re-lamping from the 5-year maintenance forecast entirely. The rugged aluminum and glass construction with IP65 sealing has required only routine external cleaning
Operations Manager Summary
"We didn't just upgrade our lighting—we fundamentally changed the safety profile of our night-shift haulage operations. The RFEPL8280's combination of ATEX certification, high CRI output, and robust mechanical design has delivered results that speak for themselves in both our energy bills and our safety statistics."