Can some of you elloborate on the differences between solid condutor and stranded wire for typical installations like lites?? emf, counter emf, right hand rule, inductive reactance, voltage drop, eddie currents, harmonic currents. What's the princaple behind solid over starnded?
I agree stranded wire is much easier to pull and solid wire is better at terminations. But how the current flows is more what I was asking. Does the current runs, through the core of the conductor, so a solid wire would have less resistance as apposed to stranded. HOw does this apply to our everday applications of multiple lighte tied in, like floresent. I see specs call for solid wire applications where ther is a lot of lights installed.
[This message has been edited by Wirenuttt (edited 12-12-2002).]
Re: Stranded or solid#18647 12/12/0205:45 PM12/12/0205:45 PM
The higher the frequency the more the current flows near or on the surface of the conductor(see previous posts for skin effect).Since 60 Hz is fairly low in frequency IMO I believe it would flow near the center of the conductor. Chris
Re: Stranded or solid#18650 12/12/0207:25 PM12/12/0207:25 PM
The higher the frequency the more the current flows near or on the surface of the conductor
I can dig it Chris. That's why at high freq's skin effect is so critical. Effectively the "cross sectional area" of the conductor is reduced when the current runs along the outside of the conductor. I, like Wnuttt, was taught that current runs on the surface. And, just recently, I was reading about the effects high freq's in a conductor. At what freq range does skin effect become critical? I don't know? But, from the confidence that was vibrating from your reply, I'll take your word for it. I love the dynamics of this forum. As iron sharpens iron, one ECN member sharpens another. To get back to the original post....I think that emf, counter emf, etc., etc. etc. are more a product of the load that is served rather than the conductor serving the load. The acception would be voltage drop, which is a product of the wire (area in CM), and the current (load), along with the rest of the factors in the voltage drop formula.