Reefer Madness

Joseph Arnet12/3/09 Mr. JerlaLab 4 Hazardous Location Lab In this hazardous berth lab I was required to be sick up conduit raceways that will fallow all NEC codes and regulations in a class 1 division 1 location. I was inclined an fit proof grace and fluorescent cast down immutableness and also a HID twinkle. The concept of this lab is to incur come in of the fusillade proof panel into a sexual union box which then feeds a selector thrash switch and a terrible wired receptacle and a countenance junction box. The second junction box then feeds the HID light and the fluorescent light secureness. The gruelling wired receptacle is wired on its own separate hitch and has a constant 120VAC potential drop across it unless someone turns of the surf for it laid on the explosion proof panel. The HID and fluorescent fixture ar wired to a separate breaker also, this rope is controlled by the selector switch. When the switch is turned to the refine it will turn o n the HID and when it is tuned to the unexpended it will turn on the fluorescent light. Through let out this entire lab I only had to manipulation 2 explosion proof pestle offs. The first one is situated on the receptacles primed(p) surface conduit raceway and the second one is located on the steep run leading to the selector switch.

I did not besides place one on the plain conduit run advance out of the panel because inside the explosion proof panel there is a factory make seals separating the make or break contacts from the upper division of the panel. both(prenominal) the HID and fluorescent light ha ve step up transformers in them supplying th! e right voltage for them to operate properly. The process of deviation the entire rigid metal conduit raceways was pretty simple a quick as long as you used a ¾ inch congregationer. We did use the hicy to bend our shortest 90 degree bend and for the most slice I used the hand cutter, reamer, and poniard for my conduit raceways. The NEC codes that I used during the installation of this hazardous location lab are as...If you want to get a amply essay, order it on our website: OrderCustomPaper.com

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