A hot tub can look fully installed once the shell is in place, the water is warm, and the jets are running. But one of…
Read More >
A new hot tub can feel like a simple backyard upgrade until you get to the cord, the outlet, and the breaker panel. So, can…
Read More >
The difference between connected load and demand load is that connected load is the total of all the electrical loads installed in a building added…
Read More >
A continuous load in commercial wiring is an electrical load where the maximum current is expected to continue for three hours or more, and because…
Read More >
Demand factor in a commercial load calculation is the ratio of a load's actual maximum demand to its total connected load, used to account for…
Read More >
Calculating commercial electrical load means determining the total electrical demand a building will place on its system, by adding up the connected loads, applying code-defined…
Read More >
A ground ring or grounding grid is a buried grounding electrode system, a ring of conductor encircling a building or a grid of interconnected conductors,…
Read More >
Short circuit current rating (SCCR) is the maximum fault (short circuit) current that a piece of electrical equipment can safely withstand for a specified time…
Read More >
Selective coordination in commercial electrical design is arranging the overcurrent protective devices (breakers and fuses) so that, when a fault occurs, only the device closest…
Read More >
An arc flash boundary is the distance from energized electrical equipment within which a person could receive a dangerous level of heat energy, enough to…
Read More >