Electrical question
Thread Starter
Burning Brakes
Joined: Mar 2006
Posts: 1,101
Likes: 171
From: Colorado Springs, CO
Electrical question
As suggested by this forum, I installed an in-line fuse (2amp) between the power source and the clock in my 57. Under normal driving conditions, I notice that my ammeter seems to be charging more than it was previously. Is this because the 2A fuse offers too much resistance? Not a big deal, just curious what your thoughts are.
Thanks, John
Thanks, John
Race Director
Joined: Nov 2000
Posts: 10,340
Likes: 664
From: Beverly Hills (Pine Ridge) Florida
A fuse is only a thin wire that will "fuse" open if too much current passes through it. It has absolutely nothing to do with the amount of current draw though the charging system (especially the clock circuit which has a very small current draw). Unless you exceed the fuse rating, current will continue to flow. However, more current (than the fuse is rated for) through the fuse causes excessive heat, and eventually enough current will cause the fuse to melt (thus it opens, and protecting the circuit).
Your logic is inverse: In fact, adding a "resistor" in an existing circuit would actually decrease the amount of current, not increase it (since it is a "resistor" and will resist current flow).
In other words, putting a fuse in a circuit to protect the circuit, will not cause any increase in observable current draw.
Your increase in current draw is due to "something" else. By the way, is the clock working?
Plasticman
Your logic is inverse: In fact, adding a "resistor" in an existing circuit would actually decrease the amount of current, not increase it (since it is a "resistor" and will resist current flow).
In other words, putting a fuse in a circuit to protect the circuit, will not cause any increase in observable current draw.
Your increase in current draw is due to "something" else. By the way, is the clock working?
Plasticman
Last edited by Plasticman; Jun 17, 2007 at 02:16 PM.
