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Author Topic: Wiring up a network - FAIL  (Read 5777 times)
erkishhorde
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« Reply #15 on: November 17, 2010, 08:30:26 PM »
How are you setting it up? When I helped my dad run cables for an office one summer we made a bunch of cables w/ the regular ends and the just ran them through the ceiling and whatnot and plugged them into the back of the outlets. If you're doing this, did you make sure to test all the cables before you installed them? If you did and they worked before you ran them through the walls, you might have crimped it somewhere.
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« Reply #16 on: November 18, 2010, 03:04:09 AM »
Dp-  yep 48vo same as what comes in over your 24awg pots wires.  No more than about 1A@48vdc.  Just enough to power a small device such as a usb charger or laptop.  Most are 1A@12vdc or thereabouts.
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« Reply #17 on: November 18, 2010, 03:08:48 AM »
10awg for 12vdc?  Wtf?

I ran wiring in my garage 220v and 50A over 10awg (2phase).

12vdc on 10g is wasteful
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"Yelling out of cars, turning your speakers out the window to blast your music onto the street, setting off M-80 firecrackers, firing automatic weapons into the air—these are all well and good. But none of them create a merry atmosphere of insouciance and bonhomie quite like a revving motorcycle.
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DILLIGAF
« Reply #18 on: November 18, 2010, 03:32:10 AM »
Quote from: ducatiz on November 18, 2010, 03:08:48 AM
10awg for 12vdc?  Wtf?

I ran wiring in my garage 220v and 50A over 10awg (2phase).

12vdc on 10g is wasteful
That's what I said when I was trying to make connections.

It's not if you consider that amperage rises as voltage drops and this was a parallel system with remote batteries. P=IE...E=IR

You under wired your garage. 10 awg is for a 30 amp circuit. By code it should have been 8 awg.

I'll notify your code enforcement officer for you. Tongue
« Last Edit: November 18, 2010, 04:23:43 AM by humorless dp » Logged
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
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    To realize the value of nine  months:
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« Reply #19 on: November 18, 2010, 04:45:41 AM »
25A over each wire.

15ft of wire.

It'll do
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"Yelling out of cars, turning your speakers out the window to blast your music onto the street, setting off M-80 firecrackers, firing automatic weapons into the air—these are all well and good. But none of them create a merry atmosphere of insouciance and bonhomie quite like a revving motorcycle.
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DILLIGAF
« Reply #20 on: November 18, 2010, 04:59:29 AM »
Quote from: ducatiz on November 18, 2010, 04:45:41 AM
25A over each wire.

15ft of wire.

It'll do

That isn't the way 240 works.

If your breaker is a double pole...each leg is capable of 50 amps.

You have his number? laughingdp
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"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
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« Reply #21 on: November 18, 2010, 05:18:46 AM »
Its running of two separate breakers.  I split out one 110 outlet off each hot wire. And its not 50 it is 40 or 20 each.  I rarely run more than one tool at a time and only the welder is 220v and that's only 25A.  I want to put in a bigger air comp but ill run another 220 for that
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"Yelling out of cars, turning your speakers out the window to blast your music onto the street, setting off M-80 firecrackers, firing automatic weapons into the air—these are all well and good. But none of them create a merry atmosphere of insouciance and bonhomie quite like a revving motorcycle.
ducpainter
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« Reply #22 on: November 18, 2010, 05:30:16 AM »
Quote from: ducatiz on November 18, 2010, 05:18:46 AM
Its running of two separate breakers.  I split out one 110 outlet off each hot wire. And its not 50 it is 40 or 20 each.  I rarely run more than one tool at a time and only the welder is 220v and that's only 25A.  I want to put in a bigger air comp but ill run another 220 for that



I've done reverse. A 120 circuit off of one leg of a 2 pole breaker. It works.

Completely illegal. Tongue

Good thing we don't have electricians licenses.
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"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent.”
ducatiz
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« Reply #23 on: November 18, 2010, 06:19:54 AM »
We don need no steenkeeng badgers
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"Yelling out of cars, turning your speakers out the window to blast your music onto the street, setting off M-80 firecrackers, firing automatic weapons into the air—these are all well and good. But none of them create a merry atmosphere of insouciance and bonhomie quite like a revving motorcycle.
mookieo2
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« Reply #24 on: November 18, 2010, 07:24:09 AM »
Just look at the connectors and make sure the wires are all the way up in the connector. Triple check this. You can pick up a basic tester real cheap. Just to test continuity of the pairs for like $10.

You would have been fine running cat 5e you're not going to see a benefit from 6. The tolerances are so tight that you will not be able to punch it down correctly. You can still run Gigabit off of it and its a hell of a lot cheaper. I've had plenty of electricians run wires next to our huge bundles of cat5e and never had a noise problem. We always yell at them and tell them to keep a foot away but that never happens.
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ducpainter
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« Reply #25 on: November 18, 2010, 07:41:08 AM »
Quote from: mookieo2 on November 18, 2010, 07:24:09 AM
J<snip> I've had plenty of electricians run wires next to our huge bundles of cat5e and never had a noise problem. We always yell at them and tell them to keep a foot away but that never happens.
friggen electricians. Tongue
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"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent.”
mookieo2
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« Reply #26 on: November 18, 2010, 07:53:43 AM »
Quote from: humorless dp on November 18, 2010, 07:41:08 AM
friggen electricians. Tongue

Yeh and they have the nerve to charge almost as much as us low voltage guys.  Smiley
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ducpainter
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DILLIGAF
« Reply #27 on: November 18, 2010, 08:03:30 AM »
Quote from: mookieo2 on November 18, 2010, 07:53:43 AM
Yeh and they have the nerve to charge almost as much as us low voltage guys.  Smiley
Can't tell them anything either.

Smartest guy on the jobsite...just ask him. Grin
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"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent.”
mitt
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« Reply #28 on: November 18, 2010, 08:13:51 AM »
NEMA definitions:

5, 12, 24, 48, 120, 240, 277, 440, 480, 500, 600, 690, 1000V AC or DC is all "low voltage" in our business.  1kV to ~40kV is "medium voltage".  ~40kV to MV is "high voltage".


Cable size (AWG) is based on CURRENT, not voltage, and conductor material (aluminum or copper), and the method for terminating (lugs, clamps, ring terminals, etc).  Cable insulation is based on VOLTAGE and application temperature (60C, 75C, 90C etc).  Each AWG diameter size step is based on a ratio of current squared due to Ohmic heating (I^2*R*time).  


48V DC is the max for voltage you can run in a DC application that is considered low enough to be touch safe.  I have heard that 48v is even too high for some working standards, and more like 40Vdc is the max considered that people can work around without PPE.  Most DC devices run at 12 or 24VDC, so I am not sure why you would run 48Vdc on any wires inside your house.
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TAftonomos
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« Reply #29 on: November 18, 2010, 08:27:53 AM »
Isn't more always better ? Cheesy

Talked with a cool dude at a computer shop today.  Gonna come out and check it out.  $80 an hour seems "reasonable" to me, as long as it doesn't take him an hour to make one cable up  laughingdp
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