Listed or labeled equipment must be installed and used in accordance with listing or labeling instructions. Which statement best describes this requirement?

Listed or labeled equipment must be installed and used in accordance with listing or labeling instructions. Which statement best describes this requirement?

• A. It must be installed and used strictly according to the listing or labeling instructions.
• B. It may be installed without consulting listing instructions.
• C. Installation is optional and independent of labeling instructions.
• D. Only labeling instructions need to be followed, not installation instructions.

Answer: (A)

Equipment that has a listing or labeling carries instructions about both how to install it and how to use it. Following those instructions exactly is essential because the listing certifies that, when installed and used as described, the device is safe and will perform as tested. If you deviate from installation steps or ignore the labeled usage, you risk voiding the certification, creating safety hazards, and potentially violating codes. So, the best statement is that listed or labeled equipment must be installed and used strictly according to the listing or labeling instructions.

Equipment that has a listing or labeling carries instructions about both how to install it and how to use it. Following those instructions exactly is essential because the listing certifies that, when installed and used as described, the device is safe and will perform as tested. If you deviate from installation steps or ignore the labeled usage, you risk voiding the certification, creating safety hazards, and potentially violating codes.

So, the best statement is that listed or labeled equipment must be installed and used strictly according to the listing or labeling instructions.