1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULMAY 11, 20161UL 2988Outline of Investigation for Universal Hybrid Power and Signal/ControlCablesIssue Number: 1May 11, 2016Summary of TopicsThis is the first issue of the Outline of Investigation
2、 for Universal HybridPower and Signal/Control Cables, UL 2988, covering multi-conductor,nonintegrally jacketed or metal armored cable consisting of power unitsand control/signal/communication units.ULs Outlines of Investigation are copyrighted by UL. Neither a printed norelectronic copy of an Outlin
3、e of Investigation should be altered in any way. All ofULs Outlines of Investigation and all copyrights, ownerships, and rights regardingthose Outlines of Investigation shall remain the sole and exclusive property of UL.COPYRIGHT 2016 UL LLCUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUC
4、TION ORDISTRIBUTION WITHOUT PERMISSION FROM ULMAY 11, 2016UL 29882No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCONTENTSINTRODUCTION1 Scope .52 Units of Measurement .53 Undated References 6CONSTRUCTION4 Materials .65 Gene
5、ral 66 Power Unit NEC Type .67 Power Unit Non-NEC Type .77.1 General .77.2 Fillers .97.3 Shield(s) .97.4 Jacket .97.5 Thicknesses 118 Signal/Control Unit .128.1 General 128.2 Material and application 129 Assembly .139.1 Parallel construction .139.2 Round construction 139.3 Armor 13PERFORMANCE10 Gene
6、ral 1410.1 Power units 1410.2 Signal/control units .1410.3 Overall construction 1411 Test for Durability of Ink Printing 1512 Vertical Flame Test .1513 Jacket Thickness .1514 Physical Properties .1615 Heat Shock Test of Thermoplastic Jacket 1616 Cold Bend Test .1717 Deformation Test of Overall Therm
7、oplastic or XL Jacket .1818 Dielectric Voltage-Withstand Test .1819 Test of Zinc Coating on Steel Armor 1920 Tension Test .20OPTIONAL TESTS21 Vertical-Tray Flame Test .2022 Limited Smoke .2023 Cold-Impact Test .2024 Crushing Test Cable Marked for Direct Burial 2125 Sunlight-Resistance Test 2226 Cabl
8、es Marked ER .22MAY 11, 2016 UL 2988 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL26.1 General .2226.2 Impact Test 2226.3 Crushing test 24MARKINGS27 Information on or in the Cable 2528 Information on the Tag, Reel, or Carton .2629 Copper-C
9、lad Aluminum 2730 Aluminum 2731 Responsibility for the Insulated Conductors 2831.1 No identification needed 2831.2 Only factory identification needed 2831.3 Organization and factory identification needed .28MAY 11, 2016UL 29884UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIB
10、UTION WITHOUT PERMISSION FROM ULINTRODUCTION1 Scope1.1 These requirements cover multi-conductor, nonintegrally jacketed or metal armored cable consistingof power units and control/signal/communication units. Each of the units is laid parallel to the next unit, orthe jacketed units may be twisted und
11、er an overall jacket or metallic armor. The cable is intended for usewith specific equipment and devices that are required to be powered and controlled from the same cable,such as (but not limited to) lighting and sound units in theaters, and ductless air conditioning systems.The installation of thi
12、s hybrid cable is intended to be in accordance with the National Electrical Code,ANSI/NFPA 70, in addition to any applicable building codes.1.2 The conductors for the power units in these cables are either unmarked, jacketed cables described inthe NEC, or use insulated conductors described in the NE
13、C. Jacketed cables used for both the powerunits and the control units are described in Sections68.Cables are marked with the temperature, voltage and other optional ratings.Cables for direct burial are so marked.Cables may be marked sun res or sunlight resistant.Cables that are marked oil resistant
14、II have a jacket that is suitable for exposure to oil attemperatures not in excess of 75C (167F).Cables that are marked oil resistant I have a jacket that is suitable for exposure to oil attemperatures not in excess of 60C (140F).Each insulated conductor that is oil resistant II, oil resistant I, VW
15、-1, gasoline-resistant, or hasanother individual conductor use is individually so marked.2 Units of Measurement2.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory orapproximate information.MAY 11, 2016 UL 2988 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR F
16、URTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL3 Undated References3.1 Any undated reference to a code or standard appearing in the requirements of this outline shall beinterpreted as referring to the latest edition of that code or standard.3.2 Wherever the designation UL 1581 is used
17、in this cable outline, reference is to be made to thedesignated part(s) of the Reference Standard for Electrical Wires, Cables, and Flexible Cords, UL 1581.Whenever the designation UL 2556 is used in this outline, reference is to be made to the designatedparts of the Wire and Cable Test Methods, UL
18、2556.CONSTRUCTION4 Materials4.1 Only materials that are acceptable for the particular use shall be employed in a cable.4.2 Each material used in a cable shall be compatible with all of the other materials used in the cable.5 General5.1 Hybrid cable shall comply in all respects with the applicable re
19、quirements for construction details, testperformance, and markings.6 Power Unit NEC Type6.1 Each power unit shall consist of one of the following cable types shown in Table 6.1, as described inthe National Electrical Code (NEC) and complying with the indicated standard. The power unit NEC typeshall
20、not be surface printed with the markings required in the applicable standard in Table 6.1.Table 6.1Power unit cable typesType Standard Type designation Maximum temperature andvoltageFlexible Cord UL 62 SJT, SJ, SJE, suffixed by W,O and/or OO as required forthe application.105C, 300VST, S, SE, suffix
21、ed by W, Oand/or OO as required for theapplication.105C, 600VNonmetallic-Sheathed Cable UL 719 NM, NM-B 90C, 600VPower and Control Tray Cable UL 1277 TC 90C, 600VMAY 11, 2016UL 29886UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL7 Power Unit
22、Non-NEC Type7.1 General7.1.1 As an option, the power unit shall consist of one of the insulated conductor types shown in Table7.1, complying with the indicated standard. Two to four insulated conductors may be laid parallel or maybe twisted. Five or more conductors shall be twisted. The length of la
23、y of the twisted conductors shallcomply with the requirements in Table 7.2. The insulated conductors shall be covered with an overalljacket complying with the requirements in 7.3.Table 7.1Insulated conductor types and ratingsType Standard Type designation Maximum temperature and voltageratingFluorop
24、olymer Insulated Wire UL 83 FEP and FEPB 200C (392F) dry 600 V specialapplicationsor90C (194F) dry 600 VThermoset Insulated Wire UL 44 RHH 90C (194F) dry 600 Vor2kVUL 44 SA 200C (392F) dry 600 Vspecial applications or90C (194F) dry 600 VUL 44 RHW-2 90C (194F) wet or dry600Vor2kVUL 44 RHW 75C (167F)
25、wet or dry600Vor2kVUL 44 RHH or RHW 90C (194F) dry75C (167F) wet600Vor2kvUL 44 XHHW-2 90C (194F) wet or dry 600 VUL 44 XHHW 90C (194F) dry75C (167F) wet600 VThermoplastic Insulated Wire UL 83 THHN 90C (194F) dry 600 VUL 83 THHW 90C (194F) dry75C (167F) wet600 VUL 83 THWN-2 90C (194F) wet or dry 600
26、VUL 83 THWN 75C (167F) wet or dry 600 VUL 83 THHN or THWN 90C (194F) dry75C (167C) wet600 VUL 83 THW-2 90C (194F) wet or dry 600 VUL 83 THW 75C (167F) wet or dry 600 VUL 83 TW 60C (140F) wet or dryMAY 11, 2016 UL 2988 7Table 7.1 Continued on Next PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHE
27、R REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULTable 7.1 ContinuedType Standard Type designation Maximum temperature and voltageratingFluoropolymer Insulated Wire UL 83 Z 150C (302F) dry 600 V specialapplicationsor90C (194F) dry 600 VUL 83 ZW 150C (302F) dry 600 V specialapplicationsor75C (
28、167F) wet90C (194f) dry600 VFixture Wire UL 66 ZHF 200C (392F) dry 600 VUL 66 ZF and ZFE 150C (302F) dry 600 VUL 66 PTFF 150C (302F) dry 600 VUL 66 PF and PGF 200C (392F) dry 600 VUL 66 PFF and PGFF 150C (302F) dry 600 VUL 66 SF-2 90C (194F) dry 600 VUL 66 SFF-2 90C (194F) dry 600 VUL 66 TFN 90C (19
29、4F) dry 600 VUL 66 TFFN 90C (194F) dry 600 VUL 66 RFHH-2 andRFHH-390C (194F) dry 600 VUL 66 RFH-2 75C (167F) dry 600 VUL 66FFH-266 75C (167F) dry 600 VUL 66 TF 60C (140F) dry 600 VUL 66 TFF 60C (140F) dry 600 VMachine Tool Wire UL 1063 MTW 105C (221F) dry 600 VTable 7.2Length of lay of twisted, insu
30、lated conductorsNumber of insulated conductors incableMaximum acceptable length of lay2 30 times conductor diametera3 35 times conductor diametera4 40 times conductor diametera5 or more 15 times the calculated diameter of the overall assemblyaConductor diameter is the calculated diameter of the larg
31、est individual, finished, insulated conductor in the cable.MAY 11, 2016UL 29888UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL7.2 Fillers7.2.1 Fillers may be provided in a flat or round power unit. In a round power unit, fillers shall be cabl
32、edwith the conductors or, if applicable to the construction, may be in the center of the cable. Fillers may beintegral with or separate from the jacket. If fillers are integral with a jacket, they and the jacket shall bereadily separable from the underlying cable assembly. Fillers shall be of noncon
33、ductive nonmetallicmaterial.7.3 Shield(s)7.3.1 A shield is not required, but is acceptable over an individual insulated conductor, over one orseveral groups of conductors, or over the entire cable assembly. Several shields may be used in a givenpower unit.7.3.2 A shield shall consist of one of the f
34、ollowing:a) A polyester and metal laminated shield tape with or without a bare copper drain wire inelectrical contact with the metal part of the tape. The drain wire shall be metal-coated if the tapemetal is aluminum; otherwise, the drain wire may be metal-coated or uncoated. The drain wiremay be un
35、der or over the tape.b) A wrap or braid of metal-coated or uncoated copper or copper-alloy wires.c) A metal-coated or uncoated copper or copper-alloy tape.d) An evaluated equivalent of any of the above.7.3.3 The details of the construction of a shield and the manner of its application are not specif
36、ied, butare to be judged on the basis of the performance of the finished cable in the tests described in this outline.There are no requirements for the electromagnetic performance of a shield.7.4 Jacket7.4.1 The jacket shall be extruded directly over the flat or round assembly of conductors. The ass
37、emblyshall be completely covered and well centered in the jacket.7.4.2 The overall jacket shall be of one of the materials in Table 7.3. The jacket material shall have thetemperature rating required for the specific cable construction. Jacket materials not in Table 7.3 shall beevaluated for the requ
38、ested temperature rating as described in the test, Dry temperature rating of newmaterial (Long-term aging test), in UL 2556. The mechanical and physical characteristics of the cableusing either material shall be comparable in performance to a jacket material covered in Table 7.3. Aninvestigation sha
39、ll include tests such as crushing, impact, abrasion, deformation, and heat shock.MAY 11, 2016 UL 2988 9UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULTable 7.3Overall jacketJacketmaterialaTable of applicable physical properties of UL 1581a200
40、C(392F)dry cables150C(302F)dry cables125C(257F)dry cables90C (194F) wet or drycables;90C (194F) dry cables;90C (194F) dry, and75C (167F) wet cables75C (167F) dry cablesand75C (167F) wet or drycables60C(140F) drycables and60C(140F) wetor drycablesRequired200C(392F)jacketRequired150C(302F)jacketRequir
41、ed125C(257F)jacketOptional90C(194F)jacketRequired75C(167F)jacketOptional75C(167F)jacketRequired60C(140F)jacketRequired60C(140F)jacketCP 50.1 50.1 50.1 50.10 50.10ThermoplasticCPE 50.28 50.28 50.28 50.28 50.28ThermosetCPE 50.29 50.30 50.30 50.30 50.30ETFE 50.63 50.63 50.63 50.63 50.63 50.63FEP 50.70
42、50.70 50.70 50.70 50.70 50.70 50.70 50.70NBR/PVC 50.83 50.80 50.80 50.96 50.96Neoprene 50.124 50.123 50.123 50.122 50.122PFA 50.137 50.137 50.137 50.137 50.137 50.137 50.137 50.137PVC 50.182 50.182 50.182a50.182 50.182PVDF 50.185 50.185 50.185 50.185 50.185 50.185 50.185LDFRPE andHDFRPE 50.133 50.13
43、3 50.133 50.133TPE 50.224 50.224 50.224 50.224 50.224XL 50.231 50.231 50.231 50.230 50.230aSee Table 7.4 for oil resistance requirements.MAY 11, 2016UL 298810UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULTable 7.4Oil resistance of jacketsCon
44、dition of specimens at time ofmeasurementMinimum ultimate elongation (1-inchor 25-mm bench marks)Minimum tensile strengthUnaged In accordance with requirements inTable 12.1 of UL 1581Specimens of 75C (167F) oil-resistantjacket from cable marked oil resistantIIsee 27.1(f): Aged in IRM 902 oil for60 d
45、ays at 75.0 1.0C (167.0 1.8F)65 percent of the result with unagedspecimens65 percent of the result with unagedspecimensSpecimens of 60C (140F) oil-resistantjacket from cable marked oil-resistantI see 27.1(g): Aged in IRM 902 oil for96 hours at 100.0 1.0C (212.01.8F)50 percent of the result with unag
46、edspecimens50 percent of the result with unagedspecimens7.5 Thicknesses7.5.1 The average thickness and the minimum thickness at any point of the jacket shall not be less thanindicated in Table 7.5 when measured as described in Jacket Thickness, Section 13.Table 7.5Thicknesses of overall jacketCalcul
47、ated diameter of roundassembly under jacket or calculatedlength of major axis of flat assemblyunder jacketMinimum average thickness Minimum thickness at any pointinch (mm) mils (mm) mils (mm)0 0.425 (0 10.80) 30 (0.70) 27 (0.69)Over 0.425, but notover 0.700(Over 10.80, butnot over 17.78)45 (1.14) 36
48、 (0.91)Over 0.700, but notover 1.500(Over 17.78, butnot over 38.10)60 (1.52) 48 (1.22)Over 1.500, but notover 2.500(Over 38.10, butnot over 63.50)80 (2.03) 64 (1.63)Over 2.500 (Over 63.50) 100 (2.79) 88 (2.24)MAY 11, 2016 UL 2988 11UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDI
49、STRIBUTION WITHOUT PERMISSION FROM UL8 Signal/Control Unit8.1 General8.1.1 Each signal/control unit shall consist of one of the following cable types shown in Table 8.1, asdescribed in the National Electrical Code (NEC) and complying with the indicated standard. Thesignal/control unit may be a non-integral, multiconductor, jacketed c
