power wire fused
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=12581
Printed Date: June 10, 2024 at 4:37 PM
Topic: power wire fused
Posted By: ZX9R
Subject: power wire fused
Date Posted: April 22, 2003 at 8:42 PM
were is the best place to put the high amperage fuse in your power wire to your amp. I thought it should be Has close to the amp as possible Is this correct. and I have a fused distribution block should that go right after the big fuse or should I just be using the fused distribution block. Any help would be much appreciated.
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--ZX9R
Replies:
Posted By: Blazermedic
Date Posted: April 22, 2003 at 8:51 PM
The first fuse MUST be no more than 18 inches from the system's primary power battery. After that, put the D-block close to the amps so you can keep the smaller gauge power wire as short as possible. Seriously, the 18 inch rule is NON-NEGOTIABLE for any competant install or sales consultant.
If you'll let me know the amperage ratings of your amps, any accessories you might be running, the wire gauges you're using and I might be able to help you economize your wire use and keep everything flowing the right way.
Cary
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Posted By: bberman1
Date Posted: April 22, 2003 at 8:53 PM
You must always fuse the main power cable within 18 inches of the battery. As far as your fused distro goes you can put that where ever you need a distribution block. Also remember when you run your grounds to the amp that they must be no longer than 18 inches from your grounding point.
Posted By: ZX9R
Date Posted: April 22, 2003 at 9:03 PM
Cool thanks for the info. I had a system installed professionaly and they installed the big fuse right by the amp. I guess that wasn't right. If you don't mind my asking would is the logic behind that I thought if you had a short or something like that it would be better to have the fuse right by the amp.
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--ZX9R
Posted By: QuinnX1
Date Posted: April 22, 2003 at 9:34 PM
The 18" rule is to protect your cars electrical system.
Posted By: Blazermedic
Date Posted: April 23, 2003 at 9:49 AM
You had a system professionally installed and they put the power fuse right next to the amp? I'd like to know the name of the shop and give them a good talking. If (God forbid) something should happen to your electrical system, your amp fuse will blow right away, saving your amps, wires and subs. Although your amp does have a fuse on it, that doesn't mean that a power spike can't get to the vital circuitry before the fuse blows.
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