High-Rise BuildingLighting

High-Mast Lighting Projects: Lighting Efficiency and Reliability in Large Volumes

Lighting in spaces with high ceilings, such as logistics centres, hangars, transport terminals or industrial halls, presents unique technical challenges that go beyond simply delivering lumens. A high-mast project demands precision engineering to project the luminous flux efficiently to the working plane, mitigate visual fatigue from glare and ensure component longevity in conditions where maintenance access is complex and costly.

Optical Engineering for Reach and Precision

Unlike conventional installations, high-mast lighting requires comprehensive photometric control to avoid light spill on the upper parts of the structure and concentrate it where it is needed:

• Concentrated and Collimated Optics: We deploy high-transmittance lenses with narrow beam angles (30°, 60° or 90°) and elliptical distributions. This allows the luminous flux to traverse long distances with minimal loss, achieving the required lux levels on the floor without excessively increasing the installed power.
• Glare Control (UGR < 22): The use of high bays and floodlights with recessed optics or low-luminance reflectors is critical to ensure the visual comfort of operators, especially in tasks that involve looking upwards (forklift operation or overhead cranes).
• Thermal Management in Stratification: Heat tends to accumulate in the upper parts of industrial buildings. Our luminaires integrate high-conductivity aluminium heat sinks designed to operate in stratified ambient air temperatures of up to +50°C / +60°C, protecting the lifespan of the LED chip and driver.

Operational Sustainability and Maintenance

In high-mast projects, the cost of replacing a luminaire often exceeds the cost of the equipment itself due to the need for lifting platforms and downtime. Reliability is therefore the primary design metric:

• Lumen Maintenance (L80B10 > 100,000h): We select LED technology that guarantees that 90% of the light points will retain at least 80% of the flux after 100,000 hours of use, allowing service lives of more than 15-20 years.
• Remote Drivers (Optional): Possibility of installing the power supplies in switchboards at floor level or in easily accessible service galleries, facilitating preventive maintenance without the need for working at height.
• High-Bay Sensors: Integration of microwave or infrared presence sensors capable of detecting movement from heights of up to 15-18 metres, enabling on-demand lighting that maximises energy savings.

Flux and Optic Specifications by Mounting Height

Frequently Asked Questions (FAQs) on High-Mast Projects

Why is surge protection (SPD) vital in these projects?

Industrial and logistics bays often have unstable electrical networks due to the start-up of heavy motors and machinery. An integrated 10kV SPD protects the luminaire's electronics against transients, preventing catastrophic failures that would require costly lifting machinery to repair.

How does the maintenance factor influence the project calculation?

In high ceilings, dust build-up on the optic is a critical factor. Our luminaires with smooth designs and IP65/IP66 protection minimise particle adhesion, which allows a higher maintenance factor to be used in the photometric calculations and, therefore, fewer light points to be installed to achieve the same result.

What advantages does the DALI protocol bring to a high-mast logistics centre?

The DALI-2 protocol allows luminaires to be grouped by aisles or order picking zones. Thanks to bidirectionality, the system can automatically report on the status of each luminaire (driver fault, hours of use), enabling efficient predictive maintenance and centralised energy management from a computer or BMS (Building Management System).