An electrical relay is a type of heavy-duty, remote-control switch able to handle high-current accessories, yet capable of being actuated by substantially less current. Relays install between the ...

Voltage Drop Calc gives line workers a tool to determine the proper wire size for an electrical circuit, based on the voltage drop and current carrying capacity of an electrical circuit. Available ...

Despite the widespread availability and use of low-power components, today’s printed circuit boards (PCBs) can require a significant amount of current, with boards drawing 50, 100, and even 200 A in ...

Q: I bought a used 2008 Chevy Trailblazer several years ago. I really like it. But a while ago, I noticed that when I drive for 30 or 40 minutes, the voltage on the dash would go down. It still ...

The recommended maximum total voltage drop on branch-circuit conductors is ____%. Article 210 outlines the requirements for branch circuits. Branch-circuit rating rules are covered in Part II of this ...

I've got a '69 Chevelle SS396 with the factory tach. I'm planning on replacing the stock points with a PerTronix Ignitor electronic ignition module, along with the PerTronix Flame-Thrower coil. These ...