8o6 



PARKS 



the court, each lamp equipped with a deep bowl reflector and skirt, are to 

 be used along the outside edges of the end courts. The row of units between 



IZ4' 



PLATE No. 298. PLAN VIEW OF LIGHTING SYSTEM FOR A SINGLE COURT 



courts should consist of six i,5OO-watt clear mazda lamps spaced as shown, 

 and mounted thirty feet above the court, each lamp equipped with a deep 



bowl reflector, without skirt. These systems will provide 



a level of illumination entirely sufficient to enable a high 



class type of tennis to be played. 



In choosing a method of supporting the lighting units, 



a minimum first cost combined with easy maintenance are, 

 rt of course, the principal factors to be considered. A system 



such as is shown in Plate 301 will adequately meet these 



requirements. The rigid bracket arms allow the use of dis- 



connecting hangers, thus simplifying cleaning operations, 



lamp replacements and 



removal of equipment 



for storage during the 

 The rigid support for 

 the reflectors also prevents the units 

 from swinging and rotating in the wind 

 and thus eliminates the glare and un- 

 even illumination which might other- 

 wise obtain. A list of the material 

 necessary for the construction of this 

 system is given in Table B. 



The current supply for the lamps 

 may be either by underground or over- 

 head wiring, depending upon local 

 conditions. Where more than one 



PLATE No. 299 



Skirts fastened on 

 the outside rows of 

 reflectors increase the 

 amount of light on 

 the court. 



winter months. 



PLATE Xo 3QQ 

 pLAX yiW QF LIGHTING SYSTEM FOR 



TWO OR MORE ADJACENT COURTS 



