Fill in the blank with the appropriate answer.
When applying field markings per 110.21(B), the field applied marking shall be permanently attached to the equipment or wiring method and shall not be handwritten unless ________________.
A. The penmanship is above average and presented in all caps
B. the color red is used with a white background
C. portions of markings or labels are variable, or could be subject to changes
D. the writing is done with a permanent marker, which is blue in color
Answer: C
When applying field markings per 110.21(B), the field applied marking shall be permanently attached to the equipment or wiring method and shall not be handwritten unless portions of markings or labels are variable, or could be subject to changes. In this case, you could affix hand written labels or markings if they’re legible [see Exception to (2)].
Owen is the owner and president of National Code Seminars and the holder of master electrician certifications in 46 states. He can be reached at [email protected].