- #1
Loki554
- 2
- 0
Hey, I've been running into a bunch of lighting and sound techs that keep trying to tell me that leaving power cable coiled and not figure 8-ed will cause the wire in the cable to heat up to higher levels than the amp load on the individual wires (so much that it is dangerous to the life span of the cable) due to the magnetic field produced by the electricity running through the coils. I don't think this is true at all, but it has been a while since I took a physics of electricity class to come up with a reasonable argument other than to say that I don't remember magnetic fields causing extra heat in the coils that actually make up the electro-magnet, and furthermore wouldn't the neutral leg in the cable actually negate most, if not all, of the magnetic properties of the coil? Another aspect to this is the notion that the magnetic field is strong enough to cause distortion in speaker cable or the pick-ups of guitars, which seems a little more plausible if there is a sizable magnetic field created as both speak-on cable and pick-ups are notoriously touchy when it comes to electric noise.