Overview
Kellwood Lighting were tasked with upgrading Bisham Abbey’s Indoor Tennis Courts. Bisham Abbey is a national sports centre with world class facilities catering for the country’s leading athletes.
Objectives
In this project Kellwood were tasked to meet Class 1 international standards for an indoor sports tennis centre;
| Parameter | Target |
|---|---|
| Horizontal Illuminance | >750 lux |
| Uniformity of Illuminance | >0.7 |
| Glare | <50 |
| CRI | >80 |
| CCT | >4000K |
In order to meet the requirements outlined by CIBSE and the LTA, light had to be directed to the appropriate playing areas. Through the use of 60° optics, the light output was directed away from absorbent surfaces (screening and architectural walls) and towards the centre of each court.
Rotating lights in their stainless steel brackets by 15° increased the uniformity on the playing area. CAD simulations demonstrated that this also permitted a glare-free observation area for coaches between courts.
Kellwood Lighting's designs demonstrated the 140W Drummond 3 Series was the right
product for the job:
Lumen Output
Using carefully designed optics and Nichia chips the Drummond 3 series provides up to 138lm/W. This resulted in average lux levels of >1000lux for each court.
Impact Protection
A solid aluminium enclosure and modular design gives the Drummond Series resistance to tennis ball strikes.
Environmental Temperatures, Operating Hours and Lumen Maintenance (TM21 Calculated L90B10>160,000hrs) were assessed to ensure designs included an application-specific Maintenance Factor.
Uniformity of Illuminance
To meet Class 1 specifications for indoor courts >0.7 uniformity is required. Uniformity >0.7 throughout the tennis hall was achieved.
Glare
One of the stipulations for this project was to have <50 glare across all courts. This was achieve through using 60° and 90° optics.
Marine Resistant surface-finishes and stainless steel fixings (saltspray tested in accordance with ISO9227:2012), and an IP67 rating, protects the product and the investment
Glare
One of the stipulations for this project was to have <50 glare across all courts. This was achieve through using 60° and 90° optics.
Marine Resistant surface-finishes and stainless steel fixings (saltspray tested in accordance with ISO9227:2012), and an IP67 rating, protects the product and the investment.
Our Drummond 3 Series proved to be the best solution. Its integral Philips Xitanium driver provides a stable constant current to the LED array, mitigates flicker, and ensured compatibility with the camera system.
Game. Set. Match. Kellwood
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I am delighted to have used Kellwood...
- P. Nisbet, Wabtec Corporation
a project that was well planned and promptly accomplished
- E. McHugh, Loganair
Where others let us down, Kellwood did not
W. Coley, Barking Abbey School
...my client is over the moon with the end results
A. Fraser, MacLean Electrical
I'd certainly recommend them
V. Richardson, Stolle Europe
I'm more than pleased with the guys. I'd recommend them to anyone
G. Gray, Logoplaste
