No. That's why starter cables are so heavy. More metal, heavier gauge, carries more current without heating due to resistance--the opposite of a light-bulb that glows white-hot because of the amperage across the high resistance of a thin wire.
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No. You got it back asswards Schurk. Large conductors are for carrying large amounts of current as you say but they have a higher resistance per foot than a smaller conductor of the same material. The less resistance in the filament in a bulb allows for more current to flow and makes it glow. The lower the resistance in the filament,the brighter the bulb glows. Take your common 1157 dual filament bulb and hold it up and look the the filaments. The brake filament is much shorter,has less resistance and burns brighter than the running light filament which is longer and has more resistance. Break out your ohmmeter and check it out. Take one foot of 3/0 cable and one foot of 20 gauge(lenght don't matter as long as both are the same)and compare the readings.No. That's why starter cables are so heavy. More metal, heavier gauge, carries more current without heating due to resistance--the opposite of a light-bulb that glows white-hot because of the amperage across the high resistance of a thin wire.
We always went by NEC code book for Voltage Drop over distances. The larger the cross section, the lower the resistance.Large conductors are for carrying large amounts of current as you say but they have a higher resistance per foot than a smaller conductor of the same material.
Again still using current as the deciding factor when choosing wire gauge. The O2 sensor is working it the millivolt range an possibly microamp range. The resistance of a 3/0 cable would completely absorb the signal to the ECM. It was explained to me years ago by a sound man that worked with a local band. According to him smaller wires to the speakers made the signal move faster with less signal loss. For him it was a balancing act of choosing wire gauge by the amount of power(volts X amps)and running one gauge larger than the minimum wire gauge for that application.We always went by NEC code book for Voltage Drop over distances. The larger the cross section, the lower the resistance.
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Well, that may be the disconnect - we're talking about powering the heated O2, not sending signals.According to him smaller wires to the speakers made the signal move faster with less signal loss. For him it was a balancing act of choosing wire gauge by the amount of power(volts X amps)and running one gauge larger than the minimum wire gauge for that application.
No,actually I was talking about the sensor wire,you could power the heating element with battery cables.Well, that may be the disconnect - we're talking about powering the heated O2, not sending signals.
But we were talking about powering the heating element. Michigan Motorsports' adapter has the connectors for the 3-wire to the 1 wire plug (see post #1 in this thread). There's no need to change that wire since it's already connected, we just nee to land the ground and a hot to the 3-wire sensor.No,actually I was talking about the sensor wire,you could power the heating element with battery cables.
That was last year,y'all know I got CRS right?(see post #1 in this thread).
The RESISTANCE is not the problem in this case. Bigger wire = less resistance; and while resistance is important, it's also really easy to get the resistance low enough to not be a significant factor in the signal transmission--which for the O2 heater is a DC voltage/DC amperage of fairly small values.The O2 sensor is working it the millivolt range an possibly microamp range. The resistance of a 3/0 cable would completely absorb the signal to the ECM. It was explained to me years ago by a sound man that worked with a local band. According to him smaller wires to the speakers made the signal move faster with less signal loss. For him it was a balancing act of choosing wire gauge by the amount of power(volts X amps)and running one gauge larger than the minimum wire gauge for that application.