Last week I posted some photos from a recent hotel stay in Indiana…here are a few more from a California hotel, sent by Deputy Jeff Tock of Allegion.  The stairwell fire door in these photos was prepped for a wire raceway leading from the electric hinge or power transfer to the electrified lockset.  The fact that the door is now cracked in half helps to explain why drilling wire raceways in existing doors is typically treated as a field modification that must be approved in advance by the listing lab.

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