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92 IOlJP.NA1. OF HEALTHCARE PROTECTION MANAGEtoi.E......".. zontaJ i:l;.zminatiOr. i1Iurr-Jnates thB I'03d.,).:ay. and verti~l Uh..xmlnation 2llows us to see lurking bad 9Ws ar,d find our key holes, Perhllps t~e 1e3St effe..'iive wClY to Ught ~rk1rg garag€s involves center 8is1e llghtl!1g. It is cheap, but puts out a strobie effect, and provides very tittle light at thP. perim2ters (walls) of t"e parking bays, V5ABU.11Y The sr...::ond most Important fac- tot' is the amount of usab!e }tght That :s the QP"":=ty available to the user. Included in the user catE!gOry are ~.om~, employ- ees, security personnel, and CCTV. Security users may be ()n patrol or watchIng closed-drcult te!ev'.sion monItor scr~ens, Ughting W3Ste !s represented by "up1ighting- which Wum.'nate.$ th~ cem."9 only, Other waste cc- curs in "hot spots, t! pools of tight di~ctly befOOl the fixture. The hot- ter t.~ese "spots, ft the dimmer the ccmer UghIing. RedUt '''>to or e11mIn!ltlrln of glare Glarta i1yu~ t4; :-~ ~..:~d if ~~~ eliminated. Disability Glars re- duces ability to see, and Discom- fort GlMe C3u:;es driver di~om- k.It, Disability G!are reduces the abDit')' to contrast objects 3nd reo du~ depth perception, P~ople v..--ith pO~T viSion, such c:.s many sen:or citizens, suffer most from glare ~Hects. Cut-off reflettors I'?present to many the state--of~the-an m light fIxiurE'5. They ~:1 be d2S!gned so t~at fight patterns are asymmetri- cal, symmetrical, or forward throw, "J'1w ~'ersatility is important bec3i.lSe cer+"..a1:'1 areas u..'ithi.~ a SM" ~ge need different light patterns, and fo- ':.d throw is necessary to prevent ligM spillover, onto adji!- cent pro;Jerty. Vertica] bu.>n!ng ~mps locl!ted in S'lmme~ reflectors produce much usable light. and that means energy 5avings, Peak car.dIe powea on the horizontal surface comes with .a pt\)per mounting Mg!e. Hor,c'..)ntal mounted fix- tures mby ~nd 50 percent of their light straight down, Ve~ mounted lamps ~e bett.er. ReflectibU! '11 ~lothE!f consid !.ra'ion In the desJgn of protective fighting 15 re- fiect\bility of the surfaces on which th~ light will f&t. Roor and cemn~ cavities may d1stort L~e Nfl~tion d !:g~t !~ ~~~, ~~h ~!~-in~ b3!J (18' x 60' Is stmdard) mu.:.t be consIdered on its .:M-7'" mert~ and ~ch bsy m'~1 hav;:: adequate :ighting, -,- , i I i I I I I I I \ j I 1 i \ i ! ! I i I , '