Cheapest knu power wire good or crap?

[king ranch 5,000+ posts]

ok so what if say i have a 15ft of the klmx wire i believe its that the cheapest stuff only 1.75 a foot and i have it wired from front batter to back battery with that wire and using a 300amp fuse whats the worst can happen and how big of a deal is it

 

[knukonceptz 10+ year member]

and to the subject of the 250A vs 300A fuse- if you are using less then 20' then a 300A fuse could be used. On a 250A load at 20' there is an average of a 10% loss due to resistance (standard acceptable loss in cable at max load) Its not so much a "fire" hazard, but a low voltage issue could harm your equipment if you draw 300A for extended time. We advise a 250A fuse to be safe.

your 15' is a good examle - you have effectively reduced the cable's resistance by 25% (25% less material means 25% less resistance) so 300A would now be within standard allowable voltage loss

 

[king ranch 5,000+ posts]

yea well i am only running a zx1500 and zx850.4 so i dont think i am even drawing 300amps

 

[IDSkoT 5,000+ posts]

ok so what if say i have a 15ft of the klmx wire i believe its that the cheapest stuff only 1.75 a foot and i have it wired from front batter to back battery with that wire and using a 300amp fuse whats the worst can happen and how big of a deal is it

Fire.

Fire = Bad in a car. //content.invisioncic.com/y282845/emoticons/wow.gif.23d729408e9177caa2a0ed6a2ba6588e.gif

 

[fast85_gt]

sorry to still your thred but if i run 2/0 welding cable do i need to fuse it to 600 amp

 

[fast85_gt]

sorry to still your thred but if i run 2/0 welding cable do i need to fuse it to 600 amp

thats what the wire is rated at

 

[169db 10+ year member]

don't all knukonceptz 0/1 have 5147 stand cout ?

 

[shahir 10+ year member]

in that test... was #5, kicker?

 

[knukonceptz 10+ year member]

Cables are rated usualy to 600V. 2/0 is not rated for 600A. It is not double the size of 1/0 regardless of manufacture.

The Kolossus uses 5145 strands in the 1/0 gauge. The KLMX uses less strands, but the strands are larger diameter (34 gauge in KLMX vs 36 gauge Kolossus and most other brands)

Kicker was not used in the test.

 

[king ranch 5,000+ posts]

how many amps am i drawing with a zx1500.1 and a zx850.4 only using 2 channels on it

roughly 1850-2000rms

 

[knukonceptz 10+ year member]

According to Kicker:

Page #2 - 150A for the 1500

http://www.kicker.com/06/tech-support/manuals/manuals/2008/2008%20ZX%201000%201500%202500-1%20e01%20web.pdf

Page #3 - 120A for the 850

http://www.kicker.com/06/tech-support/manuals/manuals/2008/2008%20ZX%20350%20650%20850-4%20d01%20web.pdf

Those are the max current loads, the 4 channel running your door speakers will never draw max current. You might peak at 180A-200A total listening to music, test tones are another story.

 

[speedfreak28 10+ year member]

Cables are rated usualy to 600V. 2/0 is not rated for 600A. It is not double the size of 1/0 regardless of manufacture.
The Kolossus uses 5145 strands in the 1/0 gauge. The KLMX uses less strands, but the strands are larger diameter (34 gauge in KLMX vs 36 gauge Kolossus and most other brands)

Kicker was not used in the test.

how come kicker wire wasnt tested? isnt that pretty much the main competitor to the kollosus fleks? they look identical:crazy:

 

[fast85_gt]

Cables are rated usualy to 600V. 2/0 is not rated for 600A. It is not double the size of 1/0 regardless of manufacture.
The Kolossus uses 5145 strands in the 1/0 gauge. The KLMX uses less strands, but the strands are larger diameter (34 gauge in KLMX vs 36 gauge Kolossus and most other brands)

Kicker was not used in the test.

but it is all cooper not clad alum. dont get me wrong i have had 1/0 knu wire and was happy but i have 2/0 welding cable all cooper now what do i fuse it at its rated at 600volts sorry

 

[knukonceptz 10+ year member]

The test report is not about brands - its about material comparison. Look at the DC Resistance of each cable and the DC voltage. The three copper cables are close, the KLMX is right there with them and the other CCA cables are way off the pace. The point of the test was that using a different material does not make a cable bad, the geometry of the cable is what makes a cable good or bad.

Fast85 - The max rating of the 2/0 is probably in the 370-400A range.

 

[shahir 10+ year member]

Kicker was not used in the test.

then what cable was #5?

my friend has knu and he loves it, its actually really good... great for the price and alot of strands

my kicker flex has 4704 strands