Specifications

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being deployed and the second being to use the already existing ground of the nearest
building. Rather than having to run a cord to the nearest building and plug it into an
outlet there, it was decided a new ground should be created at the location of the
system. In order to do this, a 6 foot metal rod must be pounded into the ground, and
then connected to the ground lug on the outlet. A wiring diagram showing the planned
connection of the GFCI outlet can be viewed below. Each outlet should be connected to
a separate outlet on the power inverter.
120 VAC “Hot”
120 VAC “Neutral”
120 VAC “Neutral”
120 VAC “Hot”
Ground
Figure 60 - Wiring Diagram for GFCI Outlet
Permission Pending
Since the 12 VDC and 5 VDC power sources aren‟t large enough to cause a significant
electrical shock, they will not need a safety feature like GFCI. However, it is still
important to ensure that the outlets for each are protected from moisture and sun. This
will ensure the outlets themselves will stand up to the elements, and help keep moisture
out of the electronic enclosure. This can be accomplished simply by sealing all gaps
with a widely available indoor/outdoor silicon caulking and using sealed outlets. The
Parts Express Marine Grade Cigarette Lighter Socket was chosen as the 12 VDC
receptacle, as this is the most widely used connection type for this power type. It also
has a cover that can be closed to seal out moisture. For the USB receptacle, the Clarion
CCAUSB USB 2.0 Extension Cable was chosen because of its sealed watertight
design.
5.9 Stand and Electronics Enclosure
We will be enclosing our electronics for our system in the bottom of our box. This design
idea was chosen because heat rises we would be using fans to cool our system. An
example of the enclosure for our system is shown below: