Sparks Electrical News January 2018

LIGHTING

19

CHOOSING LIGHTING FOR HARSH INDUSTRIAL ENVIRONMENTS

FIRST COMPANY TO BREAK THROUGH THE ONE BILLION LED MILESTONE PHILIPS LIGHTING has delivered one bil- lion LED lamps and luminaires as part of its commitment to the ‘Global Lighting Chal- lenge’; the Clean Energy Ministerial cam- paign to deploy ten billion high efficiency light points to improve energy efficiency around the world. In doing so, it has pushed through the halfway mark of its target to deliver two billion by 2020. Philips Lighting is the first company to reach this milestone, which marks the lat- est progress in the global transition to energy-efficient lighting, a vital measure in slowing climate change. In Decem- ber 2006, when Philips Lighting called for the global phase-out of incandescent light bulbs, lighting accounted for 19% of global electricity consumption. This level was down to 15% in 2015 when the Paris Agreement was signed, and is on track to further decline to 8% by 2030. “This mile- stone demonstrates that we can success- fully drive the transition from conventional lighting technologies to LED, which can make a significant contribution to global climate change objectives. Energy efficien- cy is the low hanging fruit – it improves by about 1.5% every year but simply doubling this to 3% per year would set us on a sus- tainable path,” said Harry Verhaar, Head of Global Public and Government Affairs at Philips Lighting.

Considerations for lighting in extreme conditions Lighting products can be designed to withstand rough conditions inside typical industrial facilities. Three things to look for in lighting for industrial environments are resistance to water, oil, and dust; protection against impact and vibration; and temperature protection mechanisms to ensure the light performs safely and ef- fectively, even in high heat. Not all of these will be required for every application.

INDUSTRIAL FACILITIES have a wide variety of tasks, machines and purposes, but when lighting them, the following key features are common: • Most industrial facilities have high ceilings and large open spaces, and they often host detail-oriented or risky work that can require specific (and bright) lighting solutions. • Lighting systems may need to withstand harsh conditions, such as extreme temperatures, dust, or moisture. • Lighting may be exposed to mobile equipment and heavy machinery. • Industrial facilities often have sensitive equipment that can be damaged by electrical noise from poor quality lighting. Conversely, equipment in the space may create electrical noise that can damage a lighting system. • In some industries, sanitary standards require the protection of consumable goods or other manufactured products against contamination from the fail- ure or breakage of the light fixture. Industrial lighting can be categorised as area or task lighting. Area lighting includes high-bay and low-bay applications, such as warehouses and other open spaces that often require high-power lights to achieve adequate illumi- nation over a large area. Task lighting, on the other hand, can be used to augment the area lighting in a space by focusing illumination where the work occurs. By bringing the light source closer to the work, industrial users may be able to achieve rec- ommended illumination with lower-powered lights. Industrial users should consider using task lighting for the following: • Worker assembly cells and workstations. • Machine/robotic assembly cells. • Electrical panels and other enclosures. • Inspection stations. • Machines where operators need to be able to see inside to work on com- ponents. Performance standards for industrial lighting Determining the appropriate level of light for a given application can be chal- lenging. Too little light can potentially be dangerous, while too much light can create unpleasant glare and add unnecessary costs. Because of the variety in architecture and uses of industrial space, there is no one-size-fits-all recom- mendation for light output. The Illuminating Engineering Society (IES) publishes appropriate light lev- els and distributions for more than 100 industrial and manufacturing tasks in its exhaustive Lighting Handbook. For this reason, lighting designers often begin an initial assessment by taking an inventory of spaces in a facility, including the occupants and their functions. The following table shows recommended lux levels for different industrial applications and for different ages of workers. A lux meter can be used to get live, or before and after, lux levels to help ensure your illumination levels are sufficient for the space, task, and people.

Water, oil and dust

The WLS27 LED strip light is ideal for lighting inside of ma- chines - shatter- proof with IP66, IP67 and IP69K construction.

Along with other kinds of electrical equipment, lights can be rated based on In- gress Protection (IP) Code designations. Lights rated IP67 and above are dust and water resistant, making them ideal choices for many industrial lighting appli- cations, including machine lighting and machine tool environments. Enclosures rated IP67 can withstand temporary immersion in water. Lights rated IP68g are resistant to oil and water penetration. IP69K rated enclo- sures withstand high-pressure wash-down environments necessary for sanitation procedures common to food, beverage, and pharmaceutical manufacturers. Vibration and impact Dust and water resistance is important, but lighting fixtures in industrial environ- ments may also need to withstand vibration or impact from heavy equipment. Incandescent and fluorescent technologies use glass enclosures that can shatter upon impact, exposing workers and other equipment to risk. Constant vibration can also reduce the lifetime of some lighting solutions, es- pecially those with fine filaments and other delicate components. On the other hand, LED lights do not use glass enclosures or filaments, and are therefore ex- tremely resistant to vibration and impact. Extreme temperatures Industrial facilities may also be subject to extreme ambient temperatures that

Enquiries: www.philipslighting.co.za

make certain technology options ideal. LEDs perform better in cold conditions compared with traditional technologies. LED lights are ideal for refrigerated warehouses with tem- peratures as low as -40 °C. LED manufacturers continue to make improvements in designing for higher tem- peratures, using high-grade housing mate- rials that dissipate heat and temperature sensors that automatically dim lights as heat increases.

Application

Recommended Lux Ages 25-65

Recommended Lux Ages 65+

Warehouse Work area

100 150

200 300

The WLS27 LED strip light has au- tomatic temperature protection built into the unit. Above 50 °C, the light dims to manage heat and protect product lifetime.

General assembly

1 000

2 000 4 000 10 000

Detailed assembly 2 000

Fine inspection

5 000

Enquiries: brandon.topham@retautomation.com

NEW LED CHIP FACTORY GOES INTO OPERATION

I n November 2015, as part of its Diamond innovation and growth initiative, Osram announced plans to build a new LED chip factory in Kulim and to have it up and running by the end of 2017. The modu- lar, expandable factory has now been put into operation just two years after the announcement and one and a half years after the ground- breaking ceremony. A total of €370 million was invested in the first stage of completion. Osram can expand the factory in two additional stages, entailing total investment costs of up to one billion euros in-

cluding expansion of the LED assembly capacities in Osram’s global factory alliance. Aldo Kamper, CEO of OSRAM Opto Semiconductors business unit, underscores the enormous production capacity in Kulim: “With one week’s production we could completely retrofit the street lighting of the metropolises New York, Rio, Hong Kong and Berlin with LEDs.” To upgrade the entire street lighting worldwide, Kulim would have to produce LEDs five and a half years long exclusively for this purpose. Energy savings of up to 80 percent, compared to conventional street lights, can be achieved with LED lighting. In addition, LED has better light colour stability and can be more quickly dimmed and adjusted, so that empty streets or sidewalks do not always have to be illuminated with full brightness. The Osram factory in Kulim will produce blue LED chips which, by means of a converter layer, can generate white light. They are produced for general lighting purposes, such as the previously mentioned public street lighting, but also for façade lighting, private and commercial interior and exterior lighting, or for billboards – as well as for special applications such as horticulture lights. The global LED market for general lighting is estimated to be €6 billion in 2018, roughly six percent of which is for street lighting. An average growth rate in the market of seven percent per annum is foreseen through 2020. The overall market for optoelectronic components – including general lighting – will be €17.5 billion in 2018.

CONTACTS 012 803 0561/3

Willie Harmse – Director 084 247 3327 willie@megalight.co.za

Suppliers of: • General Electrical products • Cable & Wire • Lights & Lamps • Sockets • Switchgear • Safety Equipment • Tools • Conduit & Accessories

Frik Van Wyk - Sales & General Manager 061 491 3280 sales@megalight.co.za Harry Nel - Sales Representative 065 822 9162 sales2@megalight.co.za Clive Henegan - Sales Representative 065 823 5390 info@megalight.co.za

WE DELIVER ANYWHERE IN SA

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Enquiries: www.osram.com

SPARKS ELECTRICAL NEWS 2017/12/08 10:21:31 A

JANUARY 2018

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