I work in a subway in a south american country. For all of us we work 45 hours per week we get paid a salary (one in a month). But i am in a condition where i could work less hours i arrived 30 minutes late in the morning, no problem. I like this flexibility the job is no evil like other...
Guys
I am new. I have a basic question. How do you calculate wire caliber or seccion in low voltage distribution?
In my country (220 v, 50hz) I have seen two form:
1. Use a computer program to stimate. So the caliber depend on nominal current, short circuit and drop of tension.
2. Manual...
ETAP has a algorith closed because of copyright.
But you can do calculations with a pen and sheet. I am almost sure i saw it two years ago investigating.
Algorithm is related with loses in a wire. As we know loses are related with joule effect i.e. heat is proporcional to I ^2 R where R is...