It may be worth noting that all of the previous 770. Nec 2008 has a new article 708, critical operations power systems cops. Agricultural wiring materials and electric code update laverne e. Choosing the right fiber cable to meet the national. The washington cities electrical code mybuildingpermit. What the 2011 nec says about datacom cable and raceways. Pert article 770 of the nec a fiber optic cable containing. To protect the authenticity of your product, certain restrictions apply. With the 2014 nec, a new subsection was added to 770. There are exclusions for certain parts of specific industries such as mining, railways and electrical generation where the code doesnt apply. Understanding the listing requirements of fire alarm circuit cables can help you make sense of the cable alphabet soup. Article 770, optical fiber cables and raceways, part 2. Theres plenty of expansion room built into article 770.
This is the place readers expect to find such definitions. Ocpd servicing and maintenance industrial control panels electrical safety fuses for hazardous locations photovoltaic systems and fuses data centers fuse sizing for buildings surge protective devices. This is why conductive fiberoptic cables should be bonded and grounded as specified in nec article 770. Antenna modeling files american radio relay league. Further, it contains the installation requirements for optical raceways, which contain and support the optical fiber cables. Contents article 80 administration and enforcement 1 article 90 introduction 7. It covers anything installed with either feeders or branch circuits to charge the vehicle 625. Article 770 of the nec places requirements on fiber optic. Having the same definition in articles 770 and 800 makes no sense, and violates section 2.
Download various software and drivers for your products. Datacommunications cable installation requirements in the. This article explains article 770, fire alarm systems. Of the many articles listed above, a few articles other than article 725 may apply to instrumentation and control circuits. Articles 700, 701, and 702 prescribe standards for emergency system wiring and equipment, including automatic transfer switches. Article 770 covers the installation of optical fiber cables used to transmit light for. The nec covers communications equipment, wires and cables. The national electrical code nec is published by the. Article 300 general requirements for wiring methods and materials part i. This edition of nfpa 70, national electrical code, was prepared by the national electrical code. The 2020 nec has added a general article to chapter 8. Reject this proposal, or move the definition to article 100. Article 770 also applies to composite cables, which combine optical fibers with currentcarrying conductors. Article 770, optical fiber cables and raceways, part 3.
This article provides requirements for calculating branchcircuit, feeder, and service loads. The last pages of this paper contain he most recent update. Separate proposals for articles 770, 800, 820, 830 and 840. Article 760 covers the installation of wiring and equipment for fire alarm systems, including circuits controlled and powered by the fire. Nec 2017 code changes chapter 3 wiring methods and materials changes from the 2014 code are highlighted in yellow. Stetson1 consulting agricultural engineer lincoln, nebraska agricultural wiring materials a listing of recommended wiring materials for agricultural use was presented in a 1998. National electrical code 2008 edition usf college of. We will illustrate the increased level of detail with one example, cable trays, from article 770, optical fiber cables and raceways.
It provides the requirements for cable routing assemblies. Direct current microgrids new article 712 concerns independent energy distribution networks that allow the utilization of power from dc sources to directcurrent loads. Nec areas to study for state of oregon licensing exam per. The washington cities electrical code is a joint effort between the mbp egov portal and the washington association of building officials wabo. In the 2017 nec, all of the requirements were removed and relocated into one new article to address all stand alone systems. Datacomm cables and the 2014 national electrical code recently made available from the nfpa, the 2014 nec includes several changes of interest to professionals in the datacomm cabling field. Cops are defined as power systems for facilities or parts of facilities that require continuous operation for the reasons of public safety, emergency management, national security, or business continuity. Mike holts illustrated guide to article 760 fire alarm.
Ccca 2020 nfpa 70 nec summary communications cable. Pert article 770 of the nec, a fiberoptic cable containing noncurrentcarrying metallic components, such as armor or metallic strength members, is considered conductive. Possible nec style manual violation requirements not permitted within a. Residential smoke alarm systems, including interconnecting wiring, arent covered by article 760, because they arent.
Type ofnr for installation in vertical riser and general horizontal applications when installed in accordance with nec article 770 51 b and 770 53 b performance. In this brief video i provide an overview of the 5 new nec articles in the 2017 nec, including. The 2017 nec has five articles in chapter 8, communications systems. Extracted from mike holts illustrated guide to understanding. For more information on this or other training products, visit.
You can use these only where the optical fibers and currentcarrying electrical conductors are functionally associated 770. In order to alert users to this issue, the 2017 nec added informational notes to articles 770 optical fiber. This code was created to provide cities with a document that complies with. Here are some highlights from part iv of article 770. Article 770 optical fiber cables and raceways 554 article 780 closedloop and programmed. Datacomm cables and the 2014 national electrical code. Kendall the 2002 national electrical code nec took the first steps in addressing the issue of removing abandoned cables for air handling spaces. Nfpa documents in a broad manner, because jurisdictions and approval. Nec 2017 code changes chapter 2 wiring and protection. Antenna modeling files introduction in january, 1998, the arrl board of directors changed the arrl advertisementacceptance policy to permit the advertising of antenna gain figures for antennas whose performance can be accurately modeled using either nec 4 or yagi optimizer modeling programs. For the fiber industry the key part of the nec is article 770, which covers the installation of optical fiber cables and raceways in public and private buildings. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Examples of articles within chapter 8 that are important to the datacommunications industry are article 800, communications circuits and article 770, optical fiber cables and raceways. In particular, article 504 covering intrinsically safe circuits, article 727 covering instrumentation tray cable, article 770 covering fiberoptic cables, and article 800 covering communications, often apply to some parts.
Standalone systems new article 710 covers power production sources that are not connected to the grid, including pv and windpowered systems. That particular revision was loaded with extensive changes. A term used in multiple articles should be defined in article 100. Branchcircuit, feeder, and service calculations article 220 branchcircuit, feeder, and service calculations i. Doors and covers of enclosures used solely as pull boxes, splice boxes, or junc tion boxes shall be locked, bolted, or screwed on. National electrical code 2008 edition this edition of nfpa 70, national electrical code, was prepared by the national electrical code committee and acted on by nfpa at its june association technical meeting held june 37, 2007, in boston, ma. The provisions of this article cover the electrical conductors and equipment external to an electric vehicle that. Grounding is the act of connecting that path to the earth or some conducting body that serves as the earth. Article 708, critical operations power systems some. Code changes affecting shortcircuit current ratings based.
The term is used in articles 725, 760, 770, 800, 820, and 830. Cables abandoned and left in the plenums becomes a. Schneider electric industry codes and standards 2014 nec changes 6 switches rated for v inverters listed to operate at v nec rules for grounding and surge protection already recognized a v break instead of 600 v working space requirements in article 110 were not revised. Article article title responsible panel 300 wiring methods 3 645 information technology equipment 12. Nec 2017 code changes chapter 2 wiring and protection changes from the 2014 code are highlighted in yellow. Agricultural wiring materials and electric code update. Nec 2017 code changes chapter 3 wiring methods and. The code requirements for optical fiber vary with the type of cable. The 2014 nec, which replaces the 2011 nec, was released by the nfpa in august 20. This article provides the general requirements for branch circuits. Pert article 770 of the nec, a fiberoptic cable containing noncurrent carrying metallic components, such as armor or metallic strength members, is considered conductive.
Use of nfpa documents for regulatory purposes should be accomplished through adop. The new article includes provisions for the following. Based on the 2014 nec mike holts illustrated guide to. With over 250 pages, this industryleading handbook has new or expanded information on the following. The 2017 edition of the national electrical code nec contains provisions that govern the specification and use of standby power systems. This code is not intended as a design specification or an instruction manual for untrained persons. Nfpa 70, nfpa, national fire protection association, national electrical code, and nec are registered trade. The 2017 edition of the nec includes five 5 new articles, three of which focus on the generation, distribution, and storage of electrical power, areas of considerable interest and activity in the electrical industry. Article 770, optical fiber cables and raceways, added the following definition to 770. It was issued by the standards council on july 26, 2007, with an effective date of august. Nfpa 70, national electrical code nec handbook if a digital product is offered and you select pdf or digital access, you are purchasing a license to access nfpa information electronically.
The national electrical code nec is published by the national fire protection association nfpa. Study aid for the lcc online limited energy technician, national electrical code nec study program2017 edition nec areas to study for state of oregon licensing exam per bcd january 2017 after years of repeated inquiry, the following nec articles and tables were identified by the oregon building. Article 770 covers the installation of optical fiber cables used to transmit light for control, signaling and communication. Article 310, table 3102b and articles 336, 338 and 339, the size awg or circular mils and the maximum voltage on the following types of wire and cable rated 600 volts or less.
There are two different definitions for the same term. North america support only japan for business japan for home monitors lcd,pdp,crt nec display solutions, ltd. Once there, click on their link to free access to the 2017 nec edition of nfpa 70. Article 770 of the nec places requirements on fiber optic cables and their from nt 10 at itt technical institute rancho cordova campus. Fiberoptic cable has many advantages over competing technologies. In the 2014 nec, stand alone systems were covered in articles 690, 692 and 694 which address pv, fuel and wind systems.