UL has released a new edition of UL 1651, which applies to optical fiber cables. The 4th edition can be purchased form the UL website.
Description*
“These requirements cover single and multiple optical-fiber cables for control, signaling, and communications as described in Article 770 and other applicable parts of the National Electrical Code (NEC). Cables complying with these requirements are:Type OFNP – Plenum – A nonconductive cable for use in ducts, plenums, and other spaces used for environmental air. A nonconductive cable contains no metallic members and no other electrically conductive materials.Type OFCP – Plenum – A conductive cable for use in ducts, plenums, and other spaces used for environmental air. A conductive cable contains non-current-carrying conductive members such as metal strength members and metallic vapor barriers.Type OFNR – Riser – A nonconductive cable for vertical use in shafts or from floor to floor.Type OFCR – Riser – A conductive cable for vertical use in shafts or from floor to floor.Type OFN and OFNG – General Purpose – Nonconductive cables for general purpose use.Type OFC and OFCG – General Purpose – Conductive cables for general purpose use.”
*Description from the UL website.
