1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNovember 29, 20111SUBJECT 1294OUTLINE OF INVESTIGATIONFORCOMPOSITE PANELSISSUE NUMBER: 1November 29, 2011Summary of TopicsThis is the First Issue of Subject 1294, Outline of Investigation forComp
2、osite Panels. Composite panels incorporate pre-installed branchcircuit electrical power distribution systems which are usually concealedand may not be accessible for inspection at the installation site.COPYRIGHT 2011 UNDERWRITERS LABORATORIES INC.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER RE
3、PRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNOVEMBER 29, 2011SUBJECT 12942No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCONTENTSINTRODUCTION1 Scope .42 Components 43 Accessories 54 Units of Measurement .55 Undated
4、 References 56 Glossary .5CONSTRUCTION7 General 68 Interconnection of Panels 69 Mechanical Accessories .710 Electrical Accessories 7PERFORMANCE11 Outlet Box Support Test 8MANUFACTURING AND PRODUCTION LINE TESTS12 Grounding Continuity Test 8MARKINGS13 General .814 Installation and Operating Instructi
5、ons 10Appendix AStandards for ComponentsA1NOVEMBER 29, 2011 SUBJECT 1294 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULINTRODUCTION1 Scope1.1 This Outline covers factory-built panel assemblies for use within or as part of the structure of b
6、uildingsfor commercial, industrial and residential use. These assemblies incorporate pre-installed branch circuitelectrical power distribution systems which are usually concealed and may not be accessible forinspection at the installation site. Some panels incorporate audio, lighting, ventilation fa
7、ns and otherutilization equipment.1.2 The panel systems are evaluated only for installation in ordinary locations in accordance with theNational Electrical Code, ANSI/NFPA 70. Special Occupancies as specified in ANSI/NFPA 70 are notaddressed by these requirements.1.3 Composite panel assemblies cover
8、ed by this outline are intended to be installed in accordance withthe National Electrical Code, ANSI/NFPA 70, where the acceptability of the field assembled panel systemis determined by the Authority Having Jurisdiction.1.4 The surface flammability or fire resistance of the panel or panel system is
9、not covered by this outlineexcept as related to the individual requirements of the electrical components used within the system.2 Components2.1 Except as indicated in 2.2, a component of a product covered by this Outline of Investigation shallcomply with the requirements for that component. See Appe
10、ndix A for a list of standards coveringcomponents generally used in the products covered by this Outline.2.2 A component need not comply with a specific requirement that:a) Involves a feature or characteristic not needed in the application of the component in theproduct covered by this outline; orb)
11、 Is superseded by a requirement in this Outline of Investigation.2.3 A component shall be used in accordance with its recognized rating established for the intendedconditions of use.2.4 Specific components are recognized as being incomplete in construction features or restricted inperformance capabi
12、lities. Such components are intended for use only under limited conditions, such ascertain temperatures not exceeding specified limits and shall be used only under those specific conditionsfor which they have been recognized.NOVEMBER 29, 2011SUBJECT 12944UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FU
13、RTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL3 Accessories3.1 Proprietary electrical utilization equipment or proprietary electrical materials for use with a compositepanel system shall comply with the requirements for that equipment or material. See Appendix A.3.2 Proprietary equipme
14、nt or materials not assembled to the composite panel at the factory shall beprovided with installation instructions in accordance with 13.4.3.3 Proprietary equipment or materials not assembled to the composite panel at the factory shall bemarked for use with the composite panel system in accordance
15、with 13.4.4 Units of Measurement4.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory orapproximate information.4.2 Unless otherwise indicated, all voltage and current values mentioned in this standard areroot-mean-square (rms).5 Undated References5.1 Any u
16、ndated 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.5.2 Undated references to the National Electrical Code (NEC), ANSI/NFPA 70, refer to the edition of theNEC to which the product was eva
17、luated. The edition of the NEC used during the evaluation is marked oneach panel. See 13.8.6 Glossary6.1 For the purposes of this Outline of Investigation, the following definitions apply:6.2 ACCESSORY Proprietary equipment such as ventilation fans, lighting, sound and lighting controlequipment, mec
18、hanical anchoring systems, panel joining brackets or proprietary electrical materialssuch as electrical enclosures and electrical outlet box supports for use and installation with a compositepanel system.6.3 COMPOSITE PANEL Two typically parallel surfaces provided with an integral spacer material or
19、separate spacers to separate the surfaces. The panel may be provided with insulation materialsbetween the surfaces. For the purpose of these requirements the panels are provided with an electricalsystem that may be concealed after the panel is assembled.6.4 PANEL SYSTEM Two or more composite panels
20、intended to be physically connected in the field.NOVEMBER 29, 2011 SUBJECT 1294 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCONSTRUCTION7 General7.1 Wiring methods and materials shall be installed in accordance with the National Electric
21、Code,ANSI/NFPA 70, Chapter 3.7.2 Remote-Control, Signaling and Power-Limited Circuits shall be installed utilizing one of the methodsspecified in the National Electric Code, ANSI/NFPA 70, Article 725.7.3 Grounding and Bonding shall be provided as specified in the National Electric Code, ANSI/NFPA 70
22、,Article 250.8 Interconnection of Panels8.1 Panels that are intended to be electrically interconnected shall also be mechanically interconnected.8.2 Panels that are intended to be electrically interconnected shall be provided with a means to routeconductors from one panel to the next electrified pan
23、el. The means shall be consistent with therequirements of Chapter 3 of the National Electric Code, ANSI/NFPA 70. Some typical examples areshown in Figure 8.1. All splices shall be located in junction boxes that are accessible after the completepanel system is installed.This is generated text for fig
24、txt.Figure 8.1Electrical interconnectionsNOVEMBER 29, 2011SUBJECT 12946UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL8.3 One of the electrically powered panels in a system shall be provided with a means to routeconductors from the panel to t
25、he building wiring system. The means shall be consistent with therequirements of Chapter 3 of the National Electric Code, ANSI/NFPA 70. Some typical examples areshown in Figure 8.1.8.4 If more than one panel in an interconnected panel system has provision for connection to the buildingwiring system
26、each connection point shall be marked as indicated in 13.5.8.5 Some panel systems may be connected to the building wiring system by cord and/or plug connection.Cords shall be of the extra hard usage “S” cord type. The connection of the cord to the panel shall be toa factory installed junction box ut
27、ilizing a standard conduit fitting, knockout or opening size. Thearrangement shall be such that it is possible to field disconnect the cord and field install a permanentwiring system by disconnecting and removing the cord and installing a suitable raceway. The cord shallbe provided with a suitable c
28、ord grip for strain relief that complies with the Standard for Conduit, Tubing,and Cable Fittings, UL 514B.8.6 The current and voltage rating of the cord shall not be less than that of the branch circuit overcurrentprotection required to supply the panel system. The cord shall comply with the Nation
29、al Electric Code,ANSI/NFPA 70, Article 400.8.7 The current rating of an attachment plug or cord fitting shall not be less than 125 percent of themaximum current input of the panel system circuit(s) it supplies.8.8 The field wiring connection point of the panel system shall be marked with the informa
30、tion necessaryfor the qualified installer to determine the proper wiring circuit configuration, conductor size, temperatureand branch circuit overcurrent protection required to supply the panel system. Refer to 13.5.9 Mechanical Accessories9.1 Outlet boxes intended to support utilization equipment s
31、hall be marked and evaluated for the purpose.Outlet boxes intended to support utilization equipment shall be subjected to the Outlet Box Support Test,Section 11.10 Electrical Accessories10.1 Electrical accessories shall not be cord and plug connected unless the installation of the accessorycomplies
32、with the National Electric Code, ANSI/NFPA 70, Paragraph 400.7(A).NOVEMBER 29, 2011 SUBJECT 1294 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULPERFORMANCE11 Outlet Box Support Test11.1 Outlet boxes attached to the panel system and intended
33、to support utilization equipment shall besubjected to the tests specified by 11.2 or 11.3 as appropriate to the outlet box type used. The panel shallbe the size and configuration that offers the least support.Exception: Outlet boxes mounted to the composite panel in accordance with their installatio
34、nsinstructions are not required to be subjected to the test.11.2 The method of attaching a metallic outlet box to the panel system shall be subjected to the testmethod outlined in the Standard for Metallic Outlet Boxes, UL 514A for “Boxes intended to support afixture/luminaire or other product” or “
35、Ceiling-suspended fan support” as specified in the outlet boxmarkings and installation instructions.11.3 The method of attaching a nonmetallic outlet box to the panel system shall be subjected to the testmethod outlined in the Standard for Nonmetallic Outlet Boxes, Flush-Device Boxes, and Covers, UL
36、 514Cfor “Ceiling-Suspended Fan Support” as specified in the outlet box markings and installation instructions.MANUFACTURING AND PRODUCTION LINE TESTS12 Grounding Continuity Test12.1 Each composite panel or panel system shall be tested as specified in 12.2, as a routineproduction-line test, to deter
37、mine that grounding continuity exists between all portions of the electricalgrounding and bonding system.12.2 A continuity indicating device such as an ohmmeter, battery-and-buzzer combination, or similardevice is to be used to determine compliance with 12.1.MARKINGS13 General13.1 All required marki
38、ngs shall be permanent die-stamped, ink-stamped, or paint-stenciled lettering.Adhesive-backed label systems shall comply with the requirements for indoor-use labels in the Standardfor Marking and Labeling Systems, UL 969. Minimum letter height shall be 3/32 in (2.4 mm) as measuredby characters, such
39、 as b, 1, and H. A contrasting background shall be provided for legibility.13.2 A panel system shall be marked with the:a) Company name trade name, or trademark;b) The date or other dating period of manufacture not exceeding any three consecutive months;andc) A distinctive catalog number or the equi
40、valent.NOVEMBER 29, 2011SUBJECT 12948UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL13.3 An electrical accessory for the panel system shall be marked with the:a) Company name, trade name, or trademark;b) Date or other dating period of manufac
41、ture not exceeding any three consecutive months;andc) A distinctive catalog number or the equivalent.Exception: The date of manufacture is in compliance when abbreviated or in a nationally recognizedconventional code or in a code affirmed by the manufacturer, only when the code:a) Does not repeat in
42、 less than 20 years andb) Does not require reference to the production records of the manufacturer to determine whenthe product was manufactured.13.4 Each accessory that is shipped separately from the panel system with which it is to be used shall bemarked as specified in 11.2 and shall be identifie
43、d with respect to its intended use and interrelationshipwith the Panel System; for example For Use with Composite Panel Series _ in which theappropriate series, or catalog number is designated. When accessories are factory-assembled andshipped together, only the complete assembly and not the accesso
44、ry is required to be marked.Exception: An accessory, the physical size of which is such that all the required markings are not ableto be physically placed on the accessory and maintain the minimum letter heights specified in 13.1, shallbe marked with the name, trade name, or trademark and the date o
45、r other dating period of manufacture.All other required markings shall be provided on the smallest shipping container.13.5 Each panel system field wiring connection point shall be marked with a schematic, wiring diagram,or the equivalent, indicating the circuits and conductors provided and the requi
46、red rating of the branchcircuit to which the system is intended to be connected. The diagram or equivalent marking shall belocated so that it is visible after installation of the assembly.13.6 A panel system with other than a single phase circuit shall have devices (receptacles, switches, fanspeed c
47、ontrollers, dimmers, etc.) and utilization equipment marked by a letter, number, color, or a similardesignation to indicate the circuit in the system to which the device or utilization equipment is connected.The identification shall be consistent throughout the system, and with any markings on the d
48、iagram forbranch-circuit connections as required in 13.5. The marking shall be visible without disassembly of theproduct.13.7 Each electrical accessory that is an electrical load on a circuit (such as a Luminaire, a motor, orsimilar accessories) shall be marked with its electrical rating in volts an
49、d amperes or watts in a locationthat is visible after installation.13.8 A composite panel shall be marked with the National Electrical Code, ANSI/NFPA 70 Edition(s) withwhich the composite panel complies.NOVEMBER 29, 2011 SUBJECT 1294 9UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL14 Installation and Operating Instructions14.1 A copy of the installation and operation instructions shall be provided with each panel if shippedseparately or with each set of panels intended to be installed as a system.14.2 The co
