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Current limiting fuse from alternator


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supradude 
Silver - Posts: 915
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Joined: September 21, 2004
Location: South Carolina, United States
Posted: February 27, 2005 at 9:49 AM / IP Logged  
So he needs to do away with the old wire and fuse and run completely new wiring with a larger fuse to the battery?
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deocder 
Copper - Posts: 138
Copper spacespace
Joined: December 27, 2004
Posted: February 27, 2005 at 10:58 AM / IP Logged  
The old wire that goes to the alternator runs from the battery to the fuse box where all the accessories pick up their power. From what it looks like inside the fuse box, these connections are fused individually and by the same fuse that we have been discussing that leads to the alternator. So what has been described is to remove the wire between the fuse box and the alternator. The fuse will remain in place. A new wire with fuse will run directly from the battery to the alternator. The fuse will be choosen to allow maximum current draw from the alternator but no larger than the draw allowed by the wire.   For example, I will run a 2 gauge from the alt to the battery. 2 gauge wire can carry 225 A max. So I would choose a 225 A fuse. However, if the wire choosen is 4 gauge and the alternator is capable of delivering 200 A, the maximum current draw allowed by the wire is 150 A. The system is limited by the wire.
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haemphyst 
Platinum - Posts: 5,054
Platinum spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spacespace
Joined: January 19, 2003
Location: Michigan, Bouvet Island
Posted: February 27, 2005 at 11:28 PM / IP Logged  
Correct you are, sir...
It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
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