1、November 18, 20031SUBJECT 1680OUTLINE OF INVESTIGATIONFORSTAGE AND LIGHTING CABLESIssue Number 1November 18, 2003Summary of TopicsThis outline is being issued to update and replace the productdescription, ratings, and test programs for single- and multiple-conductorstage and lighting cables in ULs S
2、ubject 1680 bulletin dated December11, 1992.COPYRIGHT 1992, 2003 UNDERWRITERS LABORATORIES INC.NOVEMBER 18, 2003SUBJECT 16802No Text on This PageCONTENTSFOREWORD 4INTRODUCTION1 Scope .5SINGLE-CONDUCTOR CABLES2 Construction 53 Surface Markings .64 Tag Markings .65 Test Program .7MULTIPLE-CONDUCTOR CA
3、BLES6 Construction 87 Surface Markings 108 Tag Markings 109 Test Program 10NOVEMBER 18, 2003 SUBJECT 1680 3FOREWORDA. This Outline of Investigation contains basic requirements for products covered by UnderwritersLaboratories Inc. (UL) under its Follow-Up Service for this category within the limitati
4、ons given below andin the Scope section of this Outline of Investigation. They are subject to revision as further experience andinvestigation may show is necessary or desirable.B. The observance of these requirements by a manufacturer is one of the conditions of the continuedcoverage of the manufact
5、urers product.C. A product which complies with the text of this Outline of Investigation will not necessarily be judged tocomply with the Outline of Investigation if, when examined and tested, it is found to have other featureswhich impair the level of safety contemplated by these requirements.D. A
6、product employing materials or having forms of construction which conflict with specific requirementsof the Outline of Investigation cannot be judged to comply with the Outline of Investigation. A productemploying materials or having forms of construction not addressed by this Outline of Investigati
7、on may beexamined and tested according to the intent of the requirements and, if found to meet the intent of thisOutline of Investigation, may be judged to comply with the Outline of Investigation.E. UL, in performing its functions in accordance with its objectives, does not assume or undertake todi
8、scharge any responsibility of the manufacturer or any other party. The opinions and findings of ULrepresent its professional judgement given with due consideration to the necessary limitations of practicaloperation and state of the art at the time the Outline of Investigation is processed. UL shall
9、not beresponsible to anyone for the use of or reliance upon this Outline of Investigation by anyone. UL shall notincur any obligation or liability for damages, including consequential damages, arising out of or inconnection with the use, interpretation of, or reliance upon this Outline of Investigat
10、ion.F. Many tests required by the Outline of Investigations of UL are inherently hazardous and adequatesafeguards for personnel and property shall be employed in conducting such tests.NOVEMBER 18, 2003SUBJECT 16804INTRODUCTION1 Scope1.1 This Outline covers single- and multiple-conductor stage and li
11、ghting cables for use in accordancewith Articles 520, 525, and 530 and other applicable parts of the National Electrical Code (NEC), NFPA70.SINGLE-CONDUCTOR CABLES2 Construction2.1 Single-conductor cable shall be 8 AWG 250 kcmil in size. The conductor in82AWGcables shallbe of flexible-stranded coppe
12、r using 36 30 AWG strands as specified in UL 62. The conductor in 1 AWG 250 kcmil cables shall be of ASTM Class K or M stranded copper that is, of rope-layconcentric-stranded copper using 30 or 34 AWG strands.2.2 The conductor shall be covered with integral insulation and jacket or with insulation a
13、nd a separable,nonintegral jacket. In each case, the material(s) and thicknesses shall be for 600 volts and a maximumdry temperature rating of 60, 75, 90, or 105C and an optional wet rating of 60 or 75C. The ampacity ofthese cables shall be as assigned for the temperature rating in NEC Table 400.5(B
14、). Cables rated for105C are not intended to carry currents exceeding the values in NEC Table 400.5(B) for 90C.2.3 The average and point thicknesses of nonintegral insulation and jacket shall not be less thanindicated in Table 2.1.Table 2.1Thicknesses of insulation and jacket in single-conductor noni
15、ntegral cableSize of conductorMinimum average thickness in mils Minimum thickness at any point in milsInsulation Jacket Insulation Jacket8 AWG 60 75 54 606 2 60 95 54 761 4/0 80 95 72 76250 kcmil 95 95 85 762.4 The average and point thicknesses required for integral insulation and jacket are based o
16、n thetest-program performance of the cable, with emphasis on the crushing, impact, and abrasion tests (thesetests are described in itemsDGof5.1andeach is marked with an asterisk). Thicknesses are basedon performance but, in no case, shall the thicknesses be less than the values indicated in Table 2.
17、2.NOVEMBER 18, 2003 SUBJECT 1680 5Table 2.2Thicknesses of insulation and jacket in single-conductor integral cableSize of conductor Minimum average thickness in mils Minimum thickness at any point in mils8 AWG 60 546 2 60 541 4/0 80 72250 kcmil 95 853 Surface Markings3.1 The surface markings shall b
18、e as follows:a) Identification of the organization responsible for the product.b) One of the NEC Types SC, SCT,orSCE. Use of the word Type is optional.c) The AWG or kcmil size of the conductor.d) The temperature rating if higher than 60C. In addition, for 105C cable: Max amps NECTable 400.5(B) for 9
19、0C.e) 600 V or 600 volts.f) Water Resistant, followed by temperature rating, if applicable.g) 50C, 60C,or70C if applicable. 40C is acceptable but not required.h) Oil Resistant 60C or Oil Resistant 75C if applicable.4 Tag Markings4.1 The tag markings shall be surface marking itemsahof3.1plus the foll
20、owing:i) The date of manufacture by month and year.j) For use in accordance with Articles 520, 525, and 530 of the National Electrical Code.NOVEMBER 18, 2003SUBJECT 168065 Test Program5.1 The test program is as follows:A) DETAILED EXAMINATION.B) PHYSICAL PROPERTIES Values for the material(s) as stat
21、ed in the applicable table inSection 50 of UL 1581.C) SUNLIGHT RESISTANCE Eighty percent retention per UL 62 after 720 hours ofconditioning per Section 1200 of UL 1581.*D) See 2.4 CRUSHING RESISTANCE WITH CONDUCTOR AT ROOM TEMPERATURE(INTEGRAL CONSTRUCTION ONLY) Method per Section 595 of UL 1581. It
22、 is to take atleast 2500 lbf to crush 2 AWG cable to the point that the buzzer sounds and at least 3500 lbffor 4/0 AWG cable. The results of tests of these two sizes are to be considered representativeof the performance of all sizes.*E) See 2.4 CRUSHING RESISTANCE WITH CONDUCTOR AT RATED TEMPERATURE
23、(INTEGRAL CONSTRUCTION ONLY) Test as in item D but with the conductor carryingcurrent to maintain it at rated temperature during the test and for 60 minutes or more prior tothe test. The temperature of the conductor is to be determined by means of a thermocoupleplaced under the insulation. It is to
24、take at least 450 lbf to crush 2 AWG cable and at least 550lbf to crush 4/0 AWG cable.*F) See 2.4 IMPACT RESISTANCE (INTEGRAL CONSTRUCTION ONLY) Method similar toSection 22 of UL 1277. The weight is to be 10 lbs for 2 AWG cable and 50 lbs for 4/0 AWGcable. The 10-lb weight is to fall from a height o
25、f 4 feet onto each 2 AWG specimen to deliveran impact energy of 40 ft-lbf to the cable. The 50-lb weight is to fall from a height of 1-1/2 feetonto each 4/0 AWG specimen to deliver an impact energy of 75 ft-lbf to the cable. A total of twoor fewer ruptures and/or contacts in ten trials is acceptable
26、 in each case. The results of tests onthese two sizes are to be considered representative of the performance of all sizes. Rupture ofthe insulation is to be considered to have occurred if the conductor is visible. Contact is to beconsidered to have occurred if the weight or rod touches the conductor
27、 as indicated by thelighting of a 3-watt neon lamp connected in series with the conductor, the earth-groundedweight and rod, and a 120-volt a-c supply.*G) See 2.4 ABRASION RESISTANCE (INTEGRAL CONSTRUCTION ONLY) Method asspecified in paragraphs 22.1 22.4 of UL 719 modified to use a 5-pound weight. R
28、equirement:2 AWG - 4000 cycles minimum; 4/0 AWG - 5000 cycles minimum.H) CABLE FLAME TEST Method per Section 1061 of UL 1581.I) WET A-C DIELECTRIC Withstand the following for 60 seconds between conductor andwater (method per Section 820 of UL 1581): 3500 volts for82AWG; 4000 volts for 1 AWG 250 kcmi
29、l.J) COLD BEND at 40C (MANDATORY) OR AT 50C, 60C, or 70C (OPTIONAL) Requirements per UL 62. Method per Section 580 of UL 1581.K) DEFORMATION (PVC AND TPE ONLY) Test temperatures and requirements per UL 62for the material. Method per Section 560 of UL 1581. The conductor is to be replaced by a solids
30、teel rod having a diameter that is neither loose nor tight in the insulation, or a flat rectangularNOVEMBER 18, 2003 SUBJECT 1680 7buffed specimen is to be used.Conductor sizeLoad(flat rectangular specimen)Load(cylindrical specimen)8 AWG 2000 grams 500 grams6 1 2000 7501/0 4/0 2000 1000250 kcmil 200
31、0 2000L) HEAT SHOCK (PVC AND TPE ONLY) Requirements per UL 62. Method per Section 540of UL 1581.M) WATER RESISTANCE (OPTIONAL) OF PVC INSULATION Long-term insulation-resistance test in water on 60C or 75C wet-locations PVC for the thickness used. Method andrequirements per UL 83.N) WATER RESISTANCE
32、(OPTIONAL) OF TPE AND THERMOSET INSULATIONS Capacitance and stability factor using the method and requirements per UL 62.O) OIL RESISTANCE (OPTIONAL) Values for 60C or 75C oil resistance for the material asstated in the applicable table in Section 50 of UL 1581.MULTIPLE-CONDUCTOR CABLES6 Constructio
33、n6.1 Multiple-conductor cable shall contain27identical insulated conductors that are 8 AWG 250 kcmilin size. The conductors in82AWGcables shall be of flexible-stranded copper using 36 30 AWGstrands as specified in UL 62. The conductors in 1 AWG 250 kcmil cables shall be of ASTM Class K orM stranded
34、copper that is, of rope-lay concentric-stranded copper using 30 or 34 AWG strands.6.2 Each conductor shall be covered with insulation of a material and thicknesses (see Table 6.1) for 600volts and a maximum dry temperature of 60, 75, 90, or 105C and an optional wet rating of 60 or 75C.The overall ja
35、cket shall be of the thicknesses indicated in Table 6.1. The ampacity of these cables shallbe as assigned for the temperature rating in NEC Table 400.5(B). Cables rated for 105C are not intendedto carry currents exceeding the values in NEC Table 400.5(B) for 90C.NOVEMBER 18, 2003SUBJECT 16808Table 6
36、.1Thicknesses of insulation and jacket in multiple-conductor cablesSize ofconductorsNumber ofconductorsMinimum average thickness in milsMinimum thickness at any point inmilsInsulation Jacket Insulation Jacket8 AWG82or34or56060110125545488100662or34or560601251405454100112442or34or56060140155545411212
37、4222or34or560601551705454124136112, 3, or 45808017019072721361521/01/02or34or5808017019072721361522/02/02, 3, or 45808019020572721521643/03/02or34or5808019020572721521644/04/02, 3, or 4580802052207272164176250 kcmil2502or34or595952052208686164176NOVEMBER 18, 2003 SUBJECT 1680 97 Surface Markings7.1
38、The surface markings shall be as follows:a) Identification of the organization responsible for the product.b) One of the NEC Types SC, SCT,orSCE. Use of the word Type is optional.c) The number of conductors and the AWG or kcmil size of the conductor.d) The temperature rating if higher than 60C. In a
39、ddition for 105C cable: Max amps NECTable 400.5(B) for 90C.e) 600 V or 600 volts.f) Water Resistant, followed by temperature rating, if applicable.g) 40C (optional) or 50C, 60C,or70C if applicable.h) Oil Resistant 60C or Oil Resistant 75C if applicable.8 Tag Markings8.1 The tag markings shall be the
40、 same as the surface marking itemsahplus the following:i) The date of manufacture by month and year.j) For use in accordance with Articles 520, 525, and 530 of the National Electrical Code.9 Test Program9.1 The test program is as for outdoor flexible cord Types SEW, SEOW, SOW, SOOW, STW, STOW, andSTOOW in UL 62 plus the cable flame test (method per Section 1061 of UL 1581).NOVEMBER 18, 2003SUBJECT 168010
