Cables under raised floors are currently the subject of a proposal to change
the code regarding them as follows:
12-101 -( 645-5(d)(5)):
SUBMITTER: Rick Zupan, Lake Oswego, OR
RECOMMENDATION:
Revise as follows:
645-5(d)(5) Cable, other than those covered in (b) and (2) and those complying
with
-Original Message-
From: Peter Tarver ptar...@nortelnetworks.com
To: emc-p...@ieee.org emc-p...@ieee.org
Date: Wednesday, September 20, 2000 8:48 AM
Subject: RE: Wiring under raised floors
Ted -
At issue, really, is whether or not the under side of the raised floor
ted.eck...@apcc.com wrote:
Is it permissible to place electrical receptacles under the raised floor of
a computer room? Can power cords pass through openings in the raised floor
or do all power connections need to be in conduit? I have received two
opinions; one stating that receptacles
Ted -
At issue, really, is whether or not the under side of the raised floor is
used for environmental air, not simply that it's in a computer room. For
the question at hand, though, I'll assume that's the case.
My first inclination is to say it's not allowed. If you also look at 300-22
of the
Section 645-5 of the United States National Electrical Code states that the
branch-circuit conductors must be in conduit. If these branch circuits feed
a receptacle, it is acceptable for the receptacle to be located under the
floor so long as the receptacle is accessible (i.e. a floor panel can
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