Question

A residential direct buried cable GFCI protected at 20 amperes will be set up at the smallest of how many inches below grade?

a) 12 inches
b) 18 inches
c) 24 inches
d) 30 inches

Answer 1

A residential direct buried cable with GFCI protection should be set up at a minimum depth of 24 inches below grade.

Step-by-step explanation:

In residential areas, direct buried cables are often used to supply electricity to homes. These cables need to be protected by GFCIs (Ground-Fault Circuit Interrupters) to prevent electrical shock hazards. The minimum depth at which a residential direct buried cable with GFCI protection should be set up is 24 inches below grade.