A raised plaster cover (often called a plaster ring or mud ring) is permitted to increase the maximum number of conductors permitted in an outlet box when it is ____.

Question

Quizplus · Accepted Answer

Plaster rings or mud rings can increase the maximum number of conductors permitted in an outlet box if they are marked with their cubic-inch volume. This marking allows for the calculation of the total volume available for conductors and devices, ensuring compliance with the National Electrical Code (NEC) requirements for box fill.

A Raised Plaster Cover (Often Called a Plaster Ring or Mud