Note: This was an article written for a now defunct site about film making. Thus, the intended audience of the article a low budget independent film maker. I wrote this to address may of the problems I witnessed on various sets. However, this applies to everyone that uses extension cords for anything.
This article is going to be a little technical and possibly boring to some, but the subject is important. I’m an Electrical Engineer, who also works on films, so I tend to take all of this knowledge for granted. The math involved is really simple, so hopefully this will be more educational than painful for those of you who hate math.