Electrical Definitions

 

 Copyright - Durand & Associates  

Electrical Definitions

Letter - J
 

Joule

A measure of the amount of energy delivered by one watt of power in one second, or 1 million watts of power in one microsecond. The joule rating of a surge protection device is the amount of energy that it can absorb before it becomes damaged.

 

Junction Box

An enclosure where conductors or wires an spliced or terminated.