WirINTRO.jpg' alt='Neca Standards For Conduit Installation' title='Neca Standards For Conduit Installation' />Article 3. Boxes, Conduit Bodies and Fittings. An enclosure that contains a devices, or supports a fixtures or other equipment can be supported by the entering raceways when all of the following conditions are met 1 the enclosure does not exceed 1. Last months In Focus explained that an enclosure not containing a device or supporting a fixture or other equipment may be supported by two or more entering raceways where certain conditions are met. All of the conditions are the same except the distance between the enclosure and the support. While enclosures not containing devices or fixtures must be supported within 3. Exception No. 2. Care should be taken when modifying existing installations. NECA is the voice of the 130 billion electrical construction industry that brings power, light, and communication technology to buildings and communities across the U. S. A simple job of installing a light fixture luminaire could violate enclosure support requirements. For example a single gang, weatherproof junction box, containing no light fixture, was previously installed between two block walls. The enclosure is supported with two rigid metal conduits threaded wrenchtight into each end. Each conduit has a threaded coupling located 2. Since the enclosure was not supported, each conduit was secured within 3 feet of the enclosure. This original installation was installed according to Code, but now the owner wants a light fixture added to that enclosure. Neca Standards For Conduit Installation' title='Neca Standards For Conduit Installation' />Adding a light fixture without supporting the enclosure or changing the conduit supports will create a violation. To keep this from happening, a support can be added to each conduit within 1. Note. if the installation in Figure 3 met the specifications of 3. Exception No. 2, installing a light fixture would not cause a violation. One pertinent detail, common to all these drawings, is that each conduit has a threaded coupling located approximately 2. Neca Standards For Conduit Installation' title='Neca Standards For Conduit Installation' />Exception No. Therefore, because of the broken lengths of conduit, exception No. Next months In Focus will present a detailed discussion of this exception. Section 3. 70 2. This brings up a questionif the enclosure in Figure 2 is a junction box, are the wire connectors wirenuts considered devices Article 1. The following is a quick reference guide concerning standards and the ICT industry. If you have a question that is not answered here, please use our Got a Question. Office of Information Technology Communications Group Telecommunications Design and Installation Standards Revised November 2015. MASTER SPECIFICATIONS Division 26 ELECTRICAL Release 1. March 2017 Released by Northwestern University Facilities Management Operations. Install Mod_Security On Apache Windows. The power supplies to the unit are Kuwaiti and US standards 415240. NECAs Standard of Installation. According to this definition, a wirenut could be considered a device. A proposal was submitted, and thus far accepted, for the 2. NEC that clarifies this issue. ROP 9 2. 9 For the purpose of Section 3. As an electrical contractor interested in expanding your business or a developer interested in new construction, one common concern is getting the best value for your. Rockwood Pop Up Camper Manual. Aluminum has been safely and effectively used in electrical applications in the United States for more than 100 years. It takes only one pound of aluminum to equal. The Fiber Optic Association. Users Guide To Fiber Optic System Design and Installation. December 2011. www. EDCmag. com. The Premier Source for Integrated HighPerformance Building. Sustainable Product Resource. Raceways supporting an enclosure that contains a devices or supports a fixtures or other equipment must be secured within 1. Last months In Focus explained that raceways entering on the same side of an enclosure not containing a device or supporting a fixture or other equipment must be secured within 1. Section 3. 70 2. Section 3. With all this discussion on enclosures being supported by the entering conduits, remember that more than one provision can be employed to support an enclosure. For example, just because an enclosure is supported by entering raceways, doesnt mean that the enclosure itself cant be supported. Enclosures within the scope of Article 3. Section 3. 70 2. Exception No. Section 3. Exception No. In Focus. Both exceptions pertain to support requirements for conduit bodies condulets. Section 3. 70 2. Exception provides requirements for conduit bodies not containing devices or supporting fixtures. This exception is for a conduit body that contains a devices or supports a fixtures or other equipment. It can be supported by either rigid metal or intermediate metal conduit, provided the conduit body is not larger than the largest trade size of the conduit. A conduit body constructed with only one conduit entry can also be supported by either of these conduit types. Unlike enclosures that cannot exceed 1. Rigid nonmetallic conduit and electrical metallic tubing are not permitted as means of support. Since the exception does not change the support distance, each conduit must be supported within 1. In order to use this exception, the trade size of the conduit body must not exceed that of the largest entering conduit. For example, if the trade size of the supporting conduit is 1 inch, the conduit bodys trade size must not exceed 1 inch. An oversized conduit body is permitted if it is securely supported, or it meets all the specifications in Section 3. Since the conduit body in Figure 6 supports a light fixture, it obviously contains splices. Are splices permitted within a conduit body Yes, splices are permitted, if the cubic inch capacity is durably and legibly marked on the conduit body by the manufacturer. The cubic inch volume for the conductors, calculated in accordance with Section 3. Next months In Focus, beginning with Section 3. Exception No. 2, will continue discussion of Article 3. Part B, Installation. Section 3. 70 2. Exception No. Miller, owner of Lighthouse Educational Services and author of the Illustrated Guide to the National Electrical Code Delmar,can be reached by phone at 6.