Registered Communications Distribution Designer (RCDD-001) — Question 17

An isolated ground is used to:

Answer options

• A. Reduce transients
• B. Prevent interruptions
• C. Reduce EMI/RFI
• D. Reduce swells and sags

Correct answer: C

Explanation

The correct answer is C, as an isolated ground is specifically designed to reduce electromagnetic interference (EMI) and radio frequency interference (RFI), ensuring cleaner power for sensitive equipment. The other options, while related to power quality, are not the primary function of an isolated ground.