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Thursday, June 8, 2023
Question:
Hello Charlie, and thanks for the providing this Code forum. Can NM Cable be installed in a PVC or Rigid Metal Conduit, and then be installed outdoors or underground? Regards, Jim Vincent
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Answer:
Hello Jim, thanks for participating. The inside of a raceway or enclosure install underground is considered a wet location per Section 300.5(B). Section 334.12(B)(4) prohibits the installation of NM Cable in wet and damp locations, as such NM Cable would not be permitted to be installed in a raceway installed underground.