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April 21, 20117 years ago

Presence detection lighting for bicycle paths

Grid operators and public authorities are looking for ways to reduce the energy consumption of public lighting. One area of research focuses on lighting up bicycle paths only when cyclists are actually using them. Together with EANDIS, the grid operator of the Flemish region in Belgium, Laborelec is testing whether such a system can be implemented using LED luminaires and presence detection sensors.

LED technology enables rapid on/off operation

EANDIS and Laborelec have equipped a test path in order to evaluate the new system’s potential. The setup features LED luminaires that not only switch on instantly but are also much more resistant to on/off operation. Such a setup would not be possible with traditional lighting technologies, since they require several minutes to reach their full luminous flux. In addition, with traditional technologies, continuous on/off operation results in significant wear.

‘We monitor the installation’s performance and compare its results with those of traditional systems,’ states Jean-Michel Deswert.
‘Initial measurements have shown that the presence detection system combined with LED technology consumes 45% less energy
than traditional lighting.’

Testing a wide variety of sensor technologies

‘To enable presence detection, a number of sensors will be placed in between the lights along the path,’ explains Deswert. ‘The goal is to test numerous sensor technologies—including radar, infrared, and camera-based ones—to identify which one is the most accurate and reliable. In addition, we are in the process of determining how many detectors need to be installed.’

Presence detection systems enable savings up to 45% compared to traditional lighting systems.

February 21, 20118 years ago

Outdoor lighting lab – researching LED luminaires for public lighting in real-life conditions

Laborelec has created an on-site test environment with fourteen LED luminaires
from different manufacturers to assess the use of LEDs for public lighting under
actual operating conditions. Our tests focus on evaluating both the luminous
efficiency and durability of the individual units.

February 21, 20109 years ago

Are your employees safe from optical radiation?

Laborelec tests legal compliance of lamps in the workplace

New EU legislation is forcing companies to assess optical radiation emissions in the workplace. As part of this legislation, companies must also ensure that all new lamps comply with regulations relating to their energy efficiency and UV emission. To assist companies in this process, Laborelec is conducting both on- and off-site compliance tests using spectroradiometer equipment.

Checking optical radiation compliance at work

By 27 April 2010, all EU Member States must have implemented the 2006/25/EC directive. This directive lays down the minimum health and safety requirements for the protection of workers from risks arising from exposure to artificial optical radiation. It primarily relates to ultraviolet (UV), blue light, and infrared radiation, and applies to a wide variety of workplace activities. These include, for example, welding in metal work industries, UV sterilization in the pharmaceutical sector, and the various types of lighting in industrial and office spaces. If levels exceed the maximum exposure limits, workers are obliged to wear protective equipment like gloves or sunglasses.

‘A number of companies have already asked us to carry out measurements on their site,’ says Jean-Michel Deswert. ‘These tests are performed using a specialized mobile spectroradiometer, which is placed in areas where workers are at most risk of exposure. The measurements determine whether or not specific protection is required.’

Testing lamp ecodesign requirements

Another EU regulation that was introduced is the 2005/32/EC directive regarding ecodesign requirements for non-directional lamps. Since 18 March 2009, all new lamps must meet specific energy efficiency and UV emission criteria. ‘In order to provide quick answers to a customer’s enquiries regarding lamp tests, we purchased a new spectroradiometer for our laboratory,’ notes Deswert. ‘The Belgian Ministry of Health also requested us to test 75 common low-energy lamps currently available on the Belgian market and to measure their UV emission.

In Short

• Companies must comply with a new EU directive regarding exposure of workers to artificial optical radiation
• Another EU directive introduced recently prescribes specific ecodesign requirements for lamps
• Laborelec carries out on-site and laboratory tests to assess compliance with both these regulations

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