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Old December 10th 04, 08:34 PM
w9gb
 
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"Dave VanHorn" wrote in message
...

His house inverter construction takes the prize for labor
http://www.schmitzhouse.com/Johns_Electronics_02.htm


Good lord..

Nice pix. I'll need to do some cleanup before I can start in earnest, it
used to be a rental, and the last tennant left "under duress". Still, it
appraises for 20% more than I'm paying.
I've been in a large bedroom for about 8 years now, but the bedroom seems
to have shrunk over time. That, and I air condition 10 months out of the
year, due to the surplus of electric heat from the equipment.

I'm thinking in terms of a 6" pvc into the attic, some of the cables I
need to pull thru are nearly an inch in diameter.

I wish I had some from my early days projects, but that would have been
kind of a bad idea... Not to mention disallowed in many cases.. The last
one I did professionally, was the office of the commander in chief,
pacific fleet. Fun doing wiring with an armed marine behind you all day.

There was a time that I put 600 phone lines into a residential basement in
Wisconsin.


In commercial installs, (multi-story high rises) I used two 4" sleeves
(three sleeves on some of the lower floors) between wiring closets on the
floors.

For residential, I usually use two or three runs of 2 inch schedule 40 PVC
electrical conduit (schedule 80 when required) and one of two runs of 1 inch
PVC conduit. Fits with most stud wall (2x4) construction and 2" is the
largest knockout size for the flush mount enclosures (electrical or
Leviton's SMC)

I keep the RG-6 coax runs in separate conduit from the UTP runs.

I save the 1 inch runs for special marked cables (service runs from outdoor
demarcations, alarm, etc.) OR for fiber optic cabling.

Greg


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Old December 10th 04, 10:14 PM
Dave VanHorn
 
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In commercial installs, (multi-story high rises) I used two 4" sleeves
(three sleeves on some of the lower floors) between wiring closets on the
floors.


I'd bet few of those had any 1 inch hardline running around


I keep the RG-6 coax runs in separate conduit from the UTP runs.


Hmm.. Why? Shouldn't be any effect either way.



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Old December 10th 04, 10:25 PM
w9gb
 
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"Dave VanHorn" wrote in message
...

In commercial installs, (multi-story high rises) I used two 4" sleeves
(three sleeves on some of the lower floors) between wiring closets on the
floors.


I'd bet few of those had any 1 inch hardline running around

I keep the RG-6 coax runs in separate conduit from the UTP runs.


Hmm.. Why? Shouldn't be any effect either way.

Reduces problems (you never know who will follow you) with pulling future
RG-6 cables. Also the bend radius tolerances are different. IF UTP cables
are within same pathway the pulling crew has to be more gentle and careful.

Now if you have ever worked a large cabling installation ... you know that
words "gentle" and "careful" are a foreign language terms to many cabling
pulling crews.
Although when I have traveled with these crews .. they referred to the
airline baggage handlers (pre-9/11) as gorillas (former TV ad of a logistics
company).

gb


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Old December 11th 04, 07:38 AM
Dave VanHorn
 
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I keep the RG-6 coax runs in separate conduit from the UTP runs.


Hmm.. Why? Shouldn't be any effect either way.

Reduces problems (you never know who will follow you) with pulling future
RG-6 cables. Also the bend radius tolerances are different. IF UTP
cables are within same pathway the pulling crew has to be more gentle and
careful.


I see.. I never had to work with multiple different types in one pull.

Now if you have ever worked a large cabling installation ... you know that
words "gentle" and "careful" are a foreign language terms to many cabling
pulling crews.


VBG! Yes, pull till it parts, and then back off a little.

There was this time in the Ala-Moana building, when I was installing coax
for video from the first to the 25th floor. We decided to to it from the top
down, so somewhere along the way, threading the cables down the core, the
end cap came off. A couple floors later, when we went down to take it the
next level, we found the raw end sticking inside the cage that surrounds the
440VAC busbars. The other end of the cable was already connected, so that
would have been rather exciting on many levels!

Although when I have traveled with these crews .. they referred to the
airline baggage handlers (pre-9/11) as gorillas (former TV ad of a
logistics company).


I saw a UAL baggage handler slam a suitcase down on the belt so hard once,
that his feet left the ground. I rarely put anything more damagable than
clothes in my bags anymore.



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