need some help

Hello everyone, I need help to understand a term related to electricity (I think). I'm a French student and as part of my degree, I'm translating a short story. In that short story, two characters are building a house. Here is the passage I'm not sure I understand: "I helped him plot circuits...

first let me introduce myself. im willy, i live in california and i have been working in the trade for a 4 years now and trying to learn from every one i work with. I am familiar only one aspect of the trade, mainly rough and finish, and instalation . not so familiar with the technical side of...