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Along with lots of computer projects, I've also wound up as a festival
electrician. As a long time Ice climber and supporter of the
Ouray Ice Park, with my son
Abe we do all the electrical, and AV work for the
Ouray Ice Festival. After
14 years of building a temporary system, we're finally wiring the
entire park area permanently. I've also done many other outdoor
festivals and sporting events.
This system is built outside in January, often during sub-zero
weather and several feet of snow. Some years we get so much bad
weather, it's difficult to get everything done in time, as the system
includes two separate sound systems for music and announcing, video
cable for closed circuit TV, and audio for wireless mics.
A satellite view of the portion of the Ice Park where the festival
takes place is here., and the 7.5 quad Topo
map is here, so you can see the area
this needs to be done in. For the "action" pictures of this
project in progress, go here. Just for grins,
here's some early ice pictures taken in
late Nov, 2009 as I was finishing up wiring. The ice is looking
mightly nice this year.
Design Details
I used Gnome Dia for my
wiring diagram, as it lets me drag things around, and is simpler than
the CAD software I usually use.
The original (if you feel like editing it) is here:
Wiring Diagram (dia format), while the easier
to view version I exported is here:
Wiring Diagram (png format)
Each sub-panel has connectors appropriate for it's location. These
vary from 20Amp AC power outlets, to speaker cables, to coax. Here I
list each location and it's purpose. The Ice Park has two bridges
about 400 feet apart, which is where most of the setup occurs.
As we'll be running conduit, I marked up some pictures to show roughly
where we'll be running it all. I've also added pictures of the
actual conduit runs I took when the projhect was done. Those photos
are
here.
Upper Bridge Sub-Panels
- Right side
- The right side of the bridge is where the sound board and one
speaker goes. The panel is located under the bridge out of the
weather, but easily accessible from the wide ledge that runs under
the bridge. This panel has a 20A AC outlet, and a connector for the
speaker on the other side so we can connect it to the sound board. A
photo of where it should go
is
here. Here's a
photo of how it actually turned out.
- Left side
- The left side of the bridge is where the other speaker goes, so
this sub panel has a 20A AC outlet, and a connector for the speaker
cable that runs across the bridge. This panel also functions as a
junction box to run power to the upper bridge web-cam.
Here's a
photo of how it actually turned out.
- Viewing Platform
- The middle viewing platform has another sub-panel. This
sub-panel has a 20A AC outlet for the TV cameras, and a
coax connector that is used to run the TV signal to the TV
monitors down in the vendor
area. Here's a
photo of how it turned out.
Lower Bridge Sub-Panels
- Right side
- The right side of the bridge is where the other sound board and one
speaker goes. The panel is mounted to the telephone pole where the
emergency phone is located. This panel has a 20A AC outlet, and a
connector for the speaker on the other side so we can connect it to
the sound
board. Here's a
photo of this sub-panel.
- Lower Bridge
- The lower bridge has a sub-panel. This sub-panel has an AC
outlet for a powered speaker, and a speaker output on the
bottom. It also contains a video line amp for the TV camera an
monitor. Here's a
photo of this sub-panel during wiring.
- Viewing Platform
- The viewing platform has another sub-panel. This sub-panel has a
20A AC outlet for the TV cameras, and a coax connector that is used
to run the TV signal to the TV monitors in the vendor area. It also
has a speaker connector, as the end of the bridge where I'd like to
put this is usually buried in thick ice and snow, making it
inaccessible. We'll just have to run power and a speaker cable each
year the 50 feet uphill to the speaker. Currently this part of
the project has been postponed till next summer. Instead a
sub-panel was installed on the bridge.
Vendor Area Sub-Panels
- Telephone Pole
- We usually set up the sound board by the telephone pole on one end
of the bridge. We'll mount this sub-panel on the pole. This panel
will have a 20A AC outlet, and a speaker connector that runs to the
other side of the bridge. A photo of the pole
is here.
Here's a photo
of this sub-panel.
- Powder Shed
- The powder shed gets a 60A feeder, to run multiple power outlets
for lights, power tools, and heaters. We'll have a junction box
by the door outside to split off the wires going to the vendor
area, from the pair of AWG-4 wires to power the powder
shed. Here's a
photo of this sub-panel during wiring.
- No Parking Sign
- There is a No Parking sign across from the Powder Shed where
another sub-panel will go. This panel has a 20A AC outlet for the
speakers, a speaker connector, and a coax connector for a
TV. We'll mount the sub-panel on a pole behind the No Parking
Sign, high enough that we can find it in the usual 5+ feet of
snow. (seriously, it's deep...) Plus it'll also be out of the
way of the snow
plow. Here's a
photo of this sub-panel during wiring.
- Big Vendor Tree
- About 3/4 of the way to the far end of the vendor area is a big
tree. We'll mount a small sub-panel to the back of the tree where
it'll stay out of the snow. This sub panel has a 20A AC outlet, and
a coax connector for the TV monitor that usually goes here. A photo
of the tree
is
here. It turns out the tree is Forest Service property, so
we ran this to the other side of the vendor area.
Here's a photo
of how this actually worked out.
Wire Runs
The wiring is broken down into segments between the sub-panels and
junction boxes. Each segment
- Office to transformer
- This is an easy one, and is only to run CaT5e from the
office to the webcam on the upper bridge.
- Upper transformer to upper bridge
- This is AWG-10, and is the main feeder for the upper bridge
and upper viewing platforms. This will also contain the Cat5e
running from the office. A photo
is here.
Here's a
photo of how it turned out.
- Across upper bridge
- Across the bridge will be run the cat5e from the office, the
AWG-10 feeder line, and EA-4 speaker cable. This will be
connected at both ends to the sub-panels under the bridge. A
photo is here
- Upper bridge to middle viewing stand
- The AWG-10 feeder will be run from the sub-panel under the
bridge to the middle viewing platform. A photo
is here.
Here's a few photos of how it turned out:
1,
2
- Middle viewing stand to lower bridge
- This is RG-6 coax for the CCTV cameras that is run to the
lower bridge junction box. This is the main input for the TV
monitors. A photo
is here.
Here's a few photos of how it turned out:
1,
2,
3
- Across lower bridge to telephone pole
- This is a big one. This run contains the RG-11 coax for the
CCTV cameras, a AWG-10 feeder, and EA-4 speaker wire. This
will run from the viewing platform to the sub-panel mounted on
the telephone pole.
is here
Here's a few photos of how it turned out:
1,
2.
- Telephone pole to lower transformer
- On the bridge by the telephone pole is where the lower sound
panel goes. The sub-panel mounted to the telephone pole will
contain an AC outlet (AWG-10), and an audio BNC connector.
Here's a few photos of how it turned out:
1,
2,
3.
- Lower transformer to powder shed
- The lower transformer will run a pair of AWG-4 wires for
power service to the shed. In addition, it'll have audio cable,
coax, and a set of AWG-10 for the TV at the big tree in the
vendor area.
- Powder shed to Sign Post
- This will be buried in PVC conduit, and will contain the
coax, audio cable, and AWG-10 for powering the TV, and maybe a
few other things. This will run to the sub-panel mounted behind
the No Parking Sign, where the audio cable will end, as we
always put the speakers in a hole dug in the snow drift near
there. There will be another pair that will run to the big tree
on the vendor area. A photo
is here
Here's a photo
of how it turned out.
- Sign Post to vendor's tree
- From the sub-panel behind the No Parking Sign, we'll run a
set of AWG-10 for power, and coax for the TV to the big tree by
the vendors area. That sub-panel will be mounted to the back of
the tree somehow high enough that we can find it in the usual
deep snow drifts. A photo
is here
Here's a photo
of how it turned out.
Wiring The Ice Park
This project came about after I suggested I should wire the park
for the Ouray Ice Festival
we throw every Jan when the weather was warmer.
I started initially by making a trip down to Ouray in the summer to
take measurements and photos, plus squeezed in some nice camping by
Yankee Boy Basin and a quick ascent of Mt Sneffles.
After taking measurements, I realized this was going to be a big
project taking several weeks, so I freed up some time. Over all, it
took about a month of solid work, spread out over three trips. The
initial trip was primarily planning mixed with constructive goofing
off. As I had never been to Ouray in the summer before, I wanted to
check a few places out I'm not used to being able to get to when I'm
here in the winter.
The next trip down was the main one. I had hoped to be able to
finish in 2 weeks of actual work, but reality struck. Little things
like a parts run is a 35mile drive each eay... Timing with other
people, etc... Plus there was some adjustment to the original
design based on actually having to do it. It turns out to be useful
to be standing around in the park looking clueful, we gave lots of
directions to Box Canyon, and general info on the Ice Park, Ouray,
and what I little tourist info know of the area.
My friend Beth and her dog Toby came down to help pull wires through
conduit (a two person operation), as I knew the regular Ice Park
staff was was busy enough as it was. We stayed at the dog friendly
(there's even a nice dog walk out back by the river)
Timber Ridge Hotel,
which is also resonably priced. In the summer all the Ouray
restaurants are open, so getting food was no problem. We had
several chilly, overcast, and rainy days, but no snow as of yet.
Over two weeks, we laid almost all the conduit, which often required
bending it into strange shapes. Bending 1/2" EMT metal conduit isn't
too bad, but bending 1" EMT metal is harder to avoid crimping the
conduit. I spent much time tied off to something solid, standing on
the edge of the canyon. Finally we were mostly finished all the
actual pulling of wire through conduit phase, I mounted sub-panels,
and that was it for that trip as I had some other work commitments
for a few weeks. It was a good break, cause I was getting sick of
driving to Montrose all the time anyway.
I then went back in mid Nov, to add all the connectors, and finish
up anything we hadn't gotten to on the previous trip. This time I
camped, as I really like camping in my truck. It was cold (below
freezing), but clear and sunny every day. I quickly learned to get
an early start to make the most of the sun, as the park would get
dark around 1:30pm, and the temperature would drop.
It took another 10 days, (too many more trips to Montrose for parts)
but worked just before the weather got really bad, although I
guess compared to January, it was normal. Still, I had to do more
intricate work this trip, connecting things together, soldering
wires (hard in the cold), testing circuits. My biggest problem
became my multimeter's LCD display didn't like the cold, and would
stop working. I resorted to carrying it around in my pants pocket to
keep it warm enough to read.
Eventually I powered it all up, and tested it. I found one wire had
gotten loose in a sub-panel, but other than that all the power
worked just fine. I then hooked up a speaker to one end of each
speaker connection, and the microphone to the other, and got to test
it out to the suprise of the few people standing around.
For more pictures of this project in progress, go here
The Ouray Ice Festival is
in early January.
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