Asked Nov 5, 2019
When conduits pass through the wall from outside to inside, the conduit must be ________ to prevent air circulation through the conduit. What is the blank word?
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Step 1

The NEC is the standard electrical code that is developed by National Electrical Code Committee. The main objective of this code is to protect and safeguard the people and equipment from electrical hazards. The codes for raceways exposed to different temperatures are defined in NEC 300.7.

Step 2

According to an article NEC 300.7(A), when a portion of the sleeve or raceway passes from interior to ...

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