1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1651 Optical Fiber CableUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCT
2、ION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Optical Fiber Cable, UL 1651 Fourth Edition, Dated May 15, 2015 Summary of Topics The Fourth Edition of the Standard for Optical Fiber Cable, UL 1651, has been issued to reect the latest ANSI approval date and to incorporate t
3、he proposals dated July 18, 2014 and January 23, 2015, which include the following: Revision to marking requirements. Addition of -LS cable designation. The effective date for UL LLC will be announced through Industry File Review Announcement Letter. The new and revised requirements are substantiall
4、y in accordance with Proposal(s) on this subject dated July 18, 2014 and January 23, 2015. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwise without p
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9、ective dates as indicated in the note following the affected item. The prior text for requirements that have been revised and that have a future effective date are located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. MAY 15, 2015 UL 1651 tr1UL COPYRIGHTED MATERIAL NOT AU
10、THORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MAY 15, 2015 UL 1651 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MAY 15, 2015 1 UL 1651 Standard for Optical Fiber Cable First Edition O
11、ctober, 1993 Second Edition December, 1997 Third Edition July, 2008 Fourth Edition May 15, 2015 This ANSI/UL Standard for Safety consists of the Fourth Edition. The most recent designation of ANSI/UL 1651 as an American National Standard (ANSI) occurred on May 15, 2015. ANSI approval for a standard
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14、RIGHT 2015 UNDERWRITERS LABORATORIES INC. ANSI/UL 1651-2015UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MAY 15, 2015 OPTICAL FIBER CABLE - UL 1651 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DI
15、STRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .4 2 Units of Measurement .5 3 References and Terms 6 CONSTRUCTION 4 Materials .6 5 Optical-Fiber Cable 6 PERFORMANCE 6 Changes in Construction .6 7 Smoke and Fire Testing of Type OFNP and OFCP Cable 7 8 Fire Testing of Type OFNR an
16、d OFCR Cable 7 9 Vertical-Tray Flame Tests on Type OFN, OFC, OFNG, and OFCG Cables .7 9.1 General .7 9.2 UL test 7 9.3 FT4/IEEE 1202 test .8 10 Sunlight Resistance Test .8 11 Durability Test of Ink Printing 8 12 Limited Combustible 8 MARKINGS 13 Intervals 8 14 Coding .9 15 Information on or in the C
17、able .9 16 Information on the Tag, Reel, or Carton .11 17 Multiple Markings .11 18 Date of Manufacture 12 MAY 15, 2015 OPTICAL FIBER CABLE - UL 1651 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements
18、 cover single and multiple optical-ber 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 o
19、ther 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 cond
20、uctive members such as metal strength members and metallic vapor barriers. Type OFNR Riser A nonconductive cable for vertical use in shafts or from oor to oor. Type OFCR Riser A conductive cable for vertical use in shafts or from oor to oor. Type OFN and OFNG General Purpose Nonconductive cables for
21、 general purpose use. Type OFC and OFCG General Purpose Conductive cables for general purpose use. 1.2 Smoke and re considerations are as follows for the cables covered in these requirements: a) TYPE OFNP and OFCP CABLES Cables that are intended for installation in accordance with Section 770.154 (A
22、) of the National Electrical Code (ANSI/NFPA 70) in a duct, plenum, or other space used to transport environmental air without the cable being enclosed in a raceway in that space are tested for smoke and ame characteristics in accordance with the National Fire Protection Association Standard Method
23、of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces, ANSI/NFPA 262. A cable that complies exhibits a maximum ame-propagation distance that is not greater than 5 ft, 0 in or 152 cm, a peak optical density of smoke produced of 0.50 or less (32 percent light transmissi
24、on), and an average optical density of smoke produced of 0.15 or less. b) TYPE OFNR and OFCR CABLES Cables that are intended for use in vertical runs in a shaft, or that penetrate more than one oor, in accordance with Section 770.154 (B) of the National Electrical Code, ANSI/NFPA 70, are tested for
25、ame-propagation characteristics in accordance with the Test for Flame Propagation Height of Electrical and Optical-Fiber Cables Installed Vertically in Shafts, UL 1666. A cable that complies has a ame-propagation height less than 12 ft, 0 in or 366 cm and temperatures are 850.0F (454.4C) or less at
26、a height of 12 ft, 0 in or 366 cm. c) TYPE OFN, OFNG, OFC, and OFCG CABLES Type OFN and OFC cables are intended for installation in accordance with Section 770.154 (C) or (D) of the National Electrical Code, ANSI/NFPA 70, comply with a 70,000 Btu/h (20.5 kW) vertical-tray ame test. The cable manufac
27、turer chooses one of the following tests: MAY 15, 2015 OPTICAL FIBER CABLE - UL 1651 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 1) The UL test described in 9.2.1 and 9.2.2 of these requirements. These paragraphs apply the test describe
28、d as the UL Flame Exposure (smoke measurements are not applicable) in the Standard for Vertical-Tray Fire-Propagation and Smoke-Release Test for Electrical and Optical-Fiber Cables, UL 1685, to cable that is surface marked or designated by a marker tape as OFN or OFC . 2) The FT4/IEEE 1202 test as d
29、escribed in 9.3.1 of these requirements, which applies the test method described as the FT4/IEEE 1202 Type of Flame Exposure (smoke measurements are not applicable) in the Standard for Vertical-Tray Fire-Propagation and Smoke-Release Test for Electrical and Optical-Fiber Cables, UL 1685. This test d
30、iffers from the UL tests in loading (more cables are used, with small cables bundled, and the spacing between cables or bundles is limited), burner angle, and failure criterion. Type OFCG and OFNG cables are to comply with the FT4/IEEE 1202 test. 1.3 Cables covered in these requirements are not requ
31、ired by the NEC to be used in raceway. These cables are capable of use without the physical protection of raceway but may be pulled into conduit or installed in other raceway. 1.4 The overall jacket on a cable that has sun res or sunlight resistant in a surface marking or on a marker tape complies w
32、ith a 720-h sunlight-resistance test. 1.5 These requirements do not cover cables that contain current-carrying conductors. Requirements for cables that contain electrical and optical ber members are found in the applicable standard for the electrical cable. 1.6 These requirements do not cover the op
33、tical performance of the cable. 2 Units of Measurement 2.1 In addition to being stated in the inch/pound units that are customary in the USA, each of the requirements is also stated in units that make the requirement conveniently usable in countries employing the various metric systems (practical SI
34、 and customary). Equivalent although not necessarily exactly identical results are to be expected from applying a requirement in USA or metric terms. Equipment calibrated in metric units is to be used when a requirement is applied in metric terms. MAY 15, 2015 OPTICAL FIBER CABLE - UL 1651 5UL COPYR
35、IGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3 References and Terms 3.1 Wherever the designation UL 2556 is used in this wire Standard, reference is to be made to the designated part(s) of the Standard for Wire and Cable Test Methods, UL 2556. 3.
36、2 Any undated reference to a code or standard appearing in the requirements of this standard shall be interpreted as referring to the latest edition of that code or standard. CONSTRUCTION 4 Materials 4.1 The materials used in a cable are not specied. 5 Optical-Fiber Cable 5.1 The assembly of an opti
37、cal-ber cable is not specied, however an overall jacket or covering is required. The dimensions of the components making up the optical ber cable shall be measured as described in the section titled Thickness (Insulation and jacket) of UL 2556. The construction of the optical ber, the coating, and t
38、he buffer (loose or tight), of a strength member, of any nonmetallic tape, wrap, braid, jacket, of any metal armor or braid, or of other components is not specied. Non-current-carrying metal or other electrically conductive parts may be included only in optical-ber cable Types OFC, OFCG, OFCP, or OF
39、CR. 5.2 The energy that an optical-ber cable carries in some laser systems presents a potential risk of eye or other injury to people. Consequently, where optical-ber cables are installed in a laser system, the recommendations of the ANSI Z136 laser system safety standards should be applied. To help
40、 protect optical-ber cable installers, users, service personnel, and anyone who handles the optical-ber cable component of the system after installation, 16.1 species a tag, reel, or carton marking. PERFORMANCE 6 Changes in Construction 6.1 In regard to the tests described in Sections79 ,aconstructi
41、on is to be considered changed (and therefore the full number of burns specied in the chosen test is to be repeated) if differences in kind and amount of material are introduced that affect the ame characteristics of the cable. MAY 15, 2015 OPTICAL FIBER CABLE - UL 1651 6UL COPYRIGHTED MATERIAL NOT
42、AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 7 Smoke and Fire Testing of Type OFNP and OFCP Cable 7.1 Type OFNP and OFCP cable shall comply with the ame-spread and smoke-density limits stated in the National Fire Protection Association Standard Method of Test for Fl
43、ame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces, ANSI/NFPA 262, when specimens of the nished cable are tested in sets as described in ANSI/NFPA 262. Typically, the test specimens of this cable are the smallest and largest diameters of the cable that the manufacturer intends t
44、o produce in the construction. See 1.2(a). 8 Fire Testing of Type OFNR and OFCR Cable 8.1 Type OFNR and OFCR cables shall comply with the ame-propagation limits stated in the requirements for test for ame propagation height of electrical and optical-ber cables installed vertically in shafts (UL 1666
45、) when specimens of the nished cable are tested in sets as described in UL 1666. See 1.2(b). 8.2 The test specimens are to be representative of the entire size range in each construction. Typically, the test specimens of this cable are the smallest and largest diameters of cable that the manufacture
46、r intends to produce in the construction. 9 Vertical-Tray Flame Tests on Type OFN, OFC, OFNG, and OFCG Cables 9.1 General 9.1.1 The cable manufacturer shall specify either the UL test referenced in 9.2.1 and 9.2.2 or the FT4/IEEE 1202 test referenced in 9.3.1 for each construction of Type OFC and OF
47、N cables. It is not required that the same test be specied for all constructions. See 1.2(c). 9.1.2 Type OFCG and OFNG cables shall comply with the FT4/IEEE 1202 test referenced in 9.3.1. See 1.2(c). 9.2 UL test 9.2.1 Type OFN and OFC cables of a given construction shall not exhibit damage that reac
48、hes the upper end of any specimen (a maximum of 8 ft, 0 in or 244 cm) when sets of cable specimens as described in 9.2.2 are separately installed in a vertical ladder type of cable tray and are subjected to 20 min of ame as described under UL Flame Exposure (smoke measurements are not applicable) in
49、 the Standard for Vertical-Tray Fire-Propagation and Smoke-Release Test for Electrical and Optical-Fiber Cables, UL 1685. 9.2.2 The vertical-tray ame test specimens are to be representative of the entire size range in each construction. Typically, the test specimens of this cable are two sets each of the smallest and largest diameters (equivalent diameter for a cable that is not round is calculated as 1.1284 (TW) 1/2 , in which T is t
