Q: We are selling our house, and the new buyers had a home inspector check it out. One of the items he found was in the main electrical panel. He said there are two wires attached to one breaker and ...

My introduction to circuit protection came at the tender age of eight. Being a curious lad with an inventive – and apparently self-destructive – bent, I decided to make my mother a lamp. I put a hose ...

When the grid goes dark, the difference between a calm night and a cascade of tripped breakers usually comes down to the ...

Reviewing a typical protective device trip curve (click here to see Fig. 2), it can be divided into three regions. First is the “instantaneous region,” which is the region intended to interrupt ...

One characteristic of adding PV solar to homes is a massive increase in high-voltage and high-current DC installations. With this comes a need for suitable breakers, but without the requisite ...