5.0 Specific Cable Classifications (Data Communications Cabling)
Description
This article is from the Data Communications Cabling FAQ, by Peter Macaulay pmac@fox.nstn.ca with numerous contributions by others.
5.0 Specific Cable Classifications (Data Communications Cabling)
CMS, CL2X (Restricted Cable) must be enclosed in conduit,
up to 10 feet exposed; must pass UL 1581 VW-1 test
CM, CL2 (General Purpose Cable) for use in areas other
than risers or plenums; must pass UL 1581 vertical tray test
CMR, CL2R (Riser Cable) for cable in vertical shafts;
must pass UL test method 1666
CMP, CL2P (Plenum Cable) for use in plenum areas (air ducts);
must pass UL 910 test for smoke and flame spread
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