Wiring loom opposing currents

Hi Peter its AC currents that are induced into other wires not DC should be no problem at all. Daryl

No problem at all Peter.

You're only issue would be the amount of current that you'll be running. If it is in close proximity to another cable and they are at or near capacity you'll lose efficiency with the combined heat and that may cause problems, but nothing related to the electric fields,

Why do you think this could be a problem ?

Have you seen the size of the wiring looms in modern cars with more than 50 wires in one bundle ?

Peter

The consensus today is that the electron do not flow at all the just rub against each other transmitting the energy a long the line - to +.

The magnetic forces you would get would be at there greatest when the wire is coiled (as in a solenoid) running straight they should be OK. just think about the cars charging system when not running the current flow would be in one direction and when charging it would be in the other. so if it works for them it should work for you..

Cheers

Richard

- "I have laid elec conduits in my time and one of the requirements of energy aus is to have the conduits 100mm apart because of the current traveling through...... "

The reason I asked why you raised this question, is because no-one has raised this as a possible issue in recent years. I was curious as to your background that would make this a possible issue.

Electrical conduits need to be separated because they could carry high currents - especailly fault currents in the thousands of amps - that could cause currents to be induced in other cables that are running parallel to them for very long runs.

The only vehicle wiring that carries really high currents is the starter motor, but there aren't any cables that run prallel and close to it.

Even though the current is DC, high currents can be induced in nearby wires whenever the Starter current starts or stops. The magnetic field changes dramatically when 300 amps is switched on or off. Because of the fast rise time, this will induce more current in other wires, than 300 amps of AC at 50 Hz.

In modern cars there are many circuits that carry AC rather than DC. Solenoids e.g. for EGR, can be pulse-width modulated with a 12 volt square wave so they can be progressivel opened with the CPU needing to put out a varying analogue voltage. Again this 12 volt square wave can induce a higher current than 12 volts of AC at 50Hz.