UL SUBJECT 2276-2014 Outline of Investigation for Recreational Vehicle Cable (Issue 3)《休闲车电缆的调查大纲 (议题3)》.pdf

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1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULAUGUST 19, 20141UL 2276Outline of Investigation for Recreational Vehicle CableIssue Number: 3August 19, 2014Summary of TopicsThis Third issue of Outline of Investigation for Recreational Vehicle

2、Cable,UL 2276 is being issued to allow different sized conductors to be used inmulti-conductor cables. Updates also include reference to UL 2556 ratherthan UL 1581.ULs Outlines of Investigation are copyrighted by UL. Neither a printed norelectronic copy of an Outline of Investigation should be alter

3、ed 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 2014 UNDERWRITERS LABORATORIES INC.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDIS

4、TRIBUTION WITHOUT PERMISSION FROM ULAUGUST 19, 2014UL 22762No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCONTENTSINTRODUCTION1 Scope .42 Undated References 4CONSTRUCTION3 Assembly 44 Conductors .45 Insulation 56 Overall J

5、acket Multiple-Conductor NEC Cables .6MARKINGS7 On the Cable .68 On the Tag, Reel, or Carton 6TEST PROGRAM9 Details .7AUGUST 19, 2014 UL 2276 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULINTRODUCTION1 Scope1.1 This Outline covers single-co

6、nductor, multiple-conductor, and jacketed flat parallel, or roundmultiple-conductor recreational vehicle cables. Cables shall be rated 24 volts, 90C or higher for use inlow-voltage circuits as described in the Standard for Low Voltage Systems in Conversion and RecreationalVehicles, ANSI/RVIA 12V.2 U

7、ndated References2.1 Any undated reference to a code or standard appearing in the requirements of this Outline ofInvestigation shall be interpreted as referring to the latest edition of that code or standard.CONSTRUCTION3 Assembly3.1 NEC CABLES The cable shall consist of a single- or multiple-conduc

8、tor parallel insulated copperconductor(s) without a jacket, or of two or more insulated copper conductors of the same type cabledtogether under an overall nonintegral jacket. The cable shall not contain both thermoplastic and thermosetmaterials. Single-conductor and parallel constructions of RV cabl

9、e shall use stranded conductors.3.2 SAE CABLES The cable shall consist of a single insulated copper conductor that is stranded.4 Conductors4.1 Conductors shall be copper and shall conform to the minimum circular mil area shown in Table 4.1.Table 4.1Circular mil area minimum sizesWire size,AWG20 18 1

10、6 14 12 10 8 6 4CMA forSAEconductors1072 1537 2336 3702 5833 9343 14810 25910 37360CMA forAWGconductors1030 1620 2580 4110 6530 10380 16510 26240 41740AUGUST 19, 2014UL 22764UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL5 Insulation5.1 NEC C

11、ABLES The conductor(s) shall be unmarked, 14 4 AWG Types complying with theStandard as indicated in Table 5.1 Insulation thickness and material on conductors sized 20 16 AWGshall comply with the requirements specified for 14 AWG conductors in the applicable standard.Table 5.1NEC Conductor TypesCondu

12、ctor type Reference standardFEP, FEPB UL 83MTW UL 1063PFA, PFAH UL 83RHH, RHW-2 UL 44SA UL 44TFE UL 83THHN, THHW, THW-2, THWN-2 UL 83USE-2 UL 854XHH, XHHW, XHHW-2 UL 854Z, ZW, ZW-2 UL 83The Standard for Thermoset-Insulated Wires and Cables, UL 44The Standard for Thermoplastic-Insulated Wires and Cab

13、les, UL 83The Standard for Service Entrance Cables, UL 854The Standard for Machine-Tool Wires and Cables, UL 10635.2 SAE CABLES The conductor shall be 20 8 AWG Type HDT, GXL, SXL, or TXL complying withthe Society of Automotive Engineers Surface Vehicle Standard for Low Tension Primary Cable, SAEJ112

14、8, including average and point thicknesses of insulation no thinner than indicated in Table 5.2 or shallbe 6 AWG Type SGR or SGT complying with the Society of Automotive Engineers Surface VehicleStandard for Battery Cable, SAE J1127, including an average thickness of insulation no thinner than 60mil

15、s and a thickness at any point of the insulation no thinner than 42 mils.Table 5.2Minimum insulation thicknesses for SAE Types HDT, GXL, SXL, and TXLAWG sizeofconductorMinimum averagethickness, milsMinimum thicknessat any point, milsType HDT Type GXL Type SXL Type TXL Type HDT Type GXL Type SXL Type

16、 TXL20 36 23 29 16 25 16 20 1118 37 23 30 16 26 16 21 1116 40 23 32 16 28 16 22 1114 41 23 35 16 29 16 25 1112 46 26 37 18 32 18 26 1310 46 31 41 20 32 22 29 148 5537432239263015AUGUST 19, 2014 UL 2276 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION

17、 FROM UL6 Overall Jacket Multiple-Conductor NEC Cables6.1 The minimum average thickness shall not be less than 30 mils. The minimum thickness at any pointshall not be less than 24 mils.MARKINGS7 On the Cable7.1 The surface markings shall be as follows:a) NEC AND SAE CABLES: Identification of the org

18、anization responsible for the product.b) NEC CABLES: RV Cable with the number and AWG size of the conductors (the number ofconductors is not required for a single-conductor cable).c) SAE CABLES: The SAE type and the AWG size of the conductor.d) NEC AND SAE CABLES: The temperature rating(s) (wet and

19、dry) in degrees C.e) NEC CABLES: Low Voltage.f) NEC CABLES: Outdoor if the conductor(s) are wet-rated and the single-conductorinsulation on a non-jacketed construction or the multiple-conductor jacket complies with a 720-hsunlight resistance test.g) NEC CABLES: Oil Resistant 60C or Oil Resistant 75C

20、 if applicable.8 On the Tag, Reel, or Carton8.1 The tag markings shall be as follows:a) g) Same as surface markings in 7.1 (a) (g).h) NEC AND SAE CABLES: The date of manufacture by month and year.i) NEC CABLES: The insulation thickness.AUGUST 19, 2014UL 22766UL COPYRIGHTED MATERIAL NOT AUTHORIZED FO

21、R FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULTEST PROGRAM9 Details9.1 SAE CABLES As specified in the applicable SAE Standard: the Society of Automotive EngineersSurface Vehicle Standard for Battery Cable, SAE J1127 or the Society of Automotive Engineers SurfaceVehicle Standard for

22、 Low Tension Primary Cable, SAE J1128.9.2 NEC CABLES Insulated conductors shall comply with the requirements for the particular conductortype as indicated in Table 5.1.9.3 AVERAGE AND POINT THICKNESSES OF OVERALL JACKET ON MULTIPLE-CONDUCTOR NECCABLES Values per 6.1 when determined in accordance wit

23、h the Thickness test in the Standard forWire and Cable Test Methods, UL 2556.9.4 PHYSICAL PROPERTIES OF OVERALL JACKET ON MULTIPLE-CONDUCTOR NEC CABLES Values for the material as specified in the Standard for Flexible Cords and Cables, UL 62, for the drytemperature rating of the conductors.9.5 CABLE

24、 FLAME TEST FOR NEC CABLES Requirements and method as described in Cable FlameTest, Section 1061 of the Reference Standard for Electrical Wires, Cables, and Flexible Cords, UL 1581.Flat cable is to be tested with the gas flame applied to the center of a flat face of the cable.9.6 SUNLIGHT RESISTANCE

25、 TEST FOR NEC CABLES (OPTIONAL) Minimum eighty percentretention of tensile strength and elongation after 720 hours of conditioning of the insulation onsingle-conductor cable or of the jacket on multiple-conductor cable when tested in accordance with theWeather (sunlight) resistance test in the Stand

26、ard for Wire and Cable Test Methods, UL 2556.9.7 OIL RESISTANCE OF SINGLE- AND MULTIPLE-CONDUCTOR NEC CABLES (OPTIONAL) Values for 60C or 75C oil resistance of the insulation on single-conductor cable or of the jacket onmultiple-conductor cable. Method and requirements as specified in the Standard for Flexible Cords andCables, UL 62.AUGUST 19, 2014 UL 2276 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULAUGUST 19, 2014UL 22768No Text on This Page