When posting really long links, it's a good idea to visit one of the
tiny URL sites and get one of these:
On 07/05/11 9:50 PM, firstname.lastname@example.org wrote:
I use tinyurl but I also post the original long url.
Some folks will not click on a tinyurl since there is no way to tell
where it will take you.
At a minimum, you should offer the preview link available from tinyurl
so users can decide for themselves if they want to follow the link.
The one on the right is thicker (more current, less voltage
drop/resistance) and stranded (flexible).
I get the resistance thing. How does a picture of two different size
wires, show why an underground service has lower voltage drop?
Perhaps he was alluding to the fact or doesn't comprehend the fact that
the overhead cable could be carrying 13.8 kV and the insulation on the
underground cable looks to be a 600 volt cable that would be run in
conduit. Of course overhead high voltage lines are often not insulated
and depend on free air spacing for insulation. Out in The Pacific I ran
a lot of 15 kV rated underground coaxial power cable with a
semiconductor grounded shield. We were using it to run 4,160 volt power
because the island was only 3 miles long. The Army Core of Engineers
wanted the power cable to be a bit overrated because of the salt water.
We used Ray-Chem heat shrink kits instead of the horrid multi-layer
wraps like the old school chaps were doing for splices and connections. :-)
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