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» Termpro Audio Forum » Installer's Corner » System Design » WIRE GUAGE 2 2-0 VS 1 4-0

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Author Topic: WIRE GUAGE 2 2-0 VS 1 4-0
heywood jablome
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IS TWO LEGS OF 2-0 CABLE GOING TO CARRY MORE AMPERAGE THAN 1 LEG OF 4-0 WIRE? I HAVE A BANK OF 10 BATTERIES AND MY AMPS CLIP OUT HAVE O GA ON THERE NOW AND IT IS A SHORT RUN LIKE NO MORE THAN 12" ANYWHERE. AN ENGINEER FRIEND OF MINE SUGGESTED TWO LEGS OF THE 2-0 INSTEAD OF ONE LEG OF THE 4-0 ANY COMMENTS

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Posts: 789 | From: Glands Burning Maryland | Registered: Oct 2005  |  IP: Logged | Report this post to a Moderator
Crazyjoker2
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2 wire of 2-0 will carry more than a run of 4-0, remember the more to run the better!

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Cutlassthunder
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damn 4-0, thats gotta be huge what you trying to power a few houses, whats the outer dia. of 4-0

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Mike Fallon
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I have 4 runs of 4/0 for power and 4 runs of 4/0 ground in addition to 4 runs or 1/0 power and 4 runs of 1/0 ground.

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Just some thoughts from a nobody. [Smile]
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Team Livewire - Mike
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quote:
Originally posted by Empire Audio-Mike:
I have 4 runs of 4/0 for power and 4 runs of 4/0 ground in addition to 4 runs or 1/0 power and 4 runs of 1/0 ground.

Speaking of which, when are you going to run the rest? [Razz]

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Mike Fallon
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quote:
Originally posted by Team Livewire - Mike:
quote:
Originally posted by Empire Audio-Mike:
I have 4 runs of 4/0 for power and 4 runs of 4/0 ground in addition to 4 runs or 1/0 power and 4 runs of 1/0 ground.

Speaking of which, when are you going to run the rest? [Razz]
Yep! [Big Grin]

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Kenneth Bischoff Jr
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Who makes 4-0 power and ground wire?
Posts: 3 | From: Pearl River Louisiana | Registered: Jan 2006  |  IP: Logged | Report this post to a Moderator
Meade916
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nice name heywood...... [Smile]

i personally dont think you would notice any difference especially if the runs are only 12"

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Posts: 4606 | From: sacramento, Ca | Registered: Aug 2002  |  IP: Logged | Report this post to a Moderator
00420
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i was allwas told power is like drinking from a straw the biger it is the more u can draw..

if this is tru
then this might help.....
Flow Rate of pvc
1/2 = 300 gph
3/4 = 700 gph = 2.333333333 x more
1" = 1,200 gph = 4 x more then 1/2"

this is why u run 1" main to 1/2" sprinklers
( im a indoor gardener )
try runing a relay to your remolt wire i had to do that once and i here it needs to be done on the earthquake amps....

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mr_malina
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quote:
Originally posted by 00420:
i was allwas told power is like drinking from a straw the biger it is the more u can draw..

if this is tru
then this might help.....
Flow Rate of pvc
1/2 = 300 gph
3/4 = 700 gph = 2.333333333 x more
1" = 1,200 gph = 4 x more then 1/2"

this is why u run 1" main to 1/2" sprinklers
( im a indoor gardener )
try runing a relay to your remolt wire i had to do that once and i here it needs to be done on the earthquake amps....

I have heard the straw thing before too. Only problem is there is a lot of other factor that play into the equation. Strand count, materials used, connections, length of runs, etc.
Posts: 1025 | From: Ohio | Registered: Sep 2005  |  IP: Logged | Report this post to a Moderator
00420
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quote:
Originally posted by mr_malina:
I have heard the straw thing before too. Only problem is there is a lot of other factor that play into the equation. Strand count, materials used, connections, length of runs, etc.

yes & no
its like pooring r/o (reverse osmosis ) down the pvc pipe then tap water now try salt water witch one went faster?
"materialls /connections"
im guessing 90% is using 100% copper / goldplated?

"length of run's" ( and he is short (12")

it's not a issue when wiring a subpanle in your house trust me i pull a ton of power in my house
this is from a code book for your house
Wire - Type and size

The following capacities apply for copper cables:

Cable ampacities - 60C temperature rating

#10 - 30 amps

#8 - 40 amps

#6 - 55 amps (can be protected at 60 amps)

#4 - 70 amps

#2 - 95 amps (can be protected at 100 amps)

Individual conductor ampacities - 75C temperature rating

#10 - 30 amps

#8 - 50 amps

#6 - 65 amps (can be protected at 70 amps)

#4 - 85 amps (can be protected at 90 amps for outbuildings. If this sub-panel is in a dwelling #4 may be good for 100 amps - see notes below)

#3 - 100 amps

i understand 120 /12v are 2 completly dif circits but its still raw power

a car amp is only so big it can only take so much its a supply prob not how its wired & i dont see that amp needing a 4/0 input or any amp at that matter i see it needing more supply.
batterys feed to the wire?

"Strand count"
as soon as u put your 10399234293847 count strains on that gold plated term its back to one just how it starts from the battery.
yes theres more surfice area with multi strins but 4/0 ???

how many amp & what amps are u running?
whats your battery votls drop to when u burp?
then test the volts at your amp it should be the same i dont see a huhge drop happing in a foot.

is not cliping coused from input soucre as well? ( or can be)
are u running line drivers ( maybe not enuff )?
id check your remot turn ons as well like i sug earlyer

good luck [Big Grin]

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Posts: 98 | From: california | Registered: Apr 2006  |  IP: Logged | Report this post to a Moderator
   

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