Joe Tedesco

Thanks Jim, I hope the readers recognize the type of installation I posted as one that does not, and and never did meet the rules!

Is this a common practice in your area? Image Insert: 49.16 KB

Here's the rest of the story! http://www.youtube.com/electricalboston

Here's the FINAL rule in the 2008 NEC available here: http://www.necplus.org/default.aspx Chapter 2 Wiring and Protection :: ARTICLE 210 Branch Circuits :: I. General Provisions 70-2008:210.12(210.1-210.18)702008210.12 Arc-Fault Circuit-Interrupter Protection. (A) Definition: Arc-Fault Circuit Interrupter (AFCI). A device intended to provide protection from the effects of arc faults by recognizing characteristics unique to arcing and by functioning to de-energize the circuit when an arc fault is detected. (B) Dwelling Units. All 120-volt, single phase, 15- and 20-ampere branch circuits supplying outlets installed in dwelling unit family rooms, dining rooms, living rooms, parlors, libraries, dens, bedrooms, sunrooms, recreation rooms, closets, hallways, or similar rooms or areas shall be protected by a listed arc-fault circuit interrupter, combination-type, installed to provide protection of the branch circuit. Changed From 2005 •210.12(B): Expanded AFCI protection requirements to include all outlets supplied by 15- and 20-ampere, 120-volt branch circuits installed in family rooms, dining rooms, living rooms, parlors, libraries, dens, bedrooms, sunrooms, recreation rooms, closets, hallways, or similar rooms or areas, and deleted effective date on use of branch/feeder AFCIs. FPN No. 1: For information on types of arc-fault circuit interrupters, see UL 1699-1999, Standard for Arc-Fault Circuit Interrupters. FPN No. 2: See 11.6.3(5) of NFPA 72®-2007, National Fire Alarm Code®, for information related to secondary power supply requirements for smoke alarms installed in dwelling units. FPN No. 3: See 760.41(B) and 760.121(B) for power-supply requirements for fire alarm systems. Exception No. 1: Where RMC, IMC, EMT or steel armored cable, Type AC, meeting the requirements of 250.118 using metal outlet and junction boxes is installed for the portion of the branch circuit between the branch-circuit overcurrent device and the first outlet, it shall be permitted to install a combination AFCI at the first outlet to provide protection for the remaining portion of the branch circuit. Changed From 2005 •210.12(B) Exception No. 1: Revised exception to permit branch-circuit conductors without AFCI protection from the panelboard to the first outlet if conductors are installed in rigid RMC, IMC, EMT, or steel AC cable for that portion of the circuit and the remaining portion is protected by a combination AFCI. Exception No. 2: Where a branch circuit to a fire alarm system installed in accordance with 760.41(B) and 760.121(B) is installed in RMC, IMC, EMT, or steel armored cable, Type AC, meeting the requirements of 250.118, with metal outlet and junction boxes, AFCI protection shall be permitted to be omitted. Changed From 2005 •210.12(B) Exception No. 2: Added exception to permit omission of AFCI protection for conductors of an individual branch circuit supplying a fire alarm system that are installed in RMC, IMC, EMT, or steel AC cable.

I have been collecting old electrical books for over 30 years, and now can find most of them on line in PDF format here! http://books.google.com/books I have downloaded many early electrical books, such as the National Electrical Code, and American Electrician's Handbook. There are many. Be sure to click full text for downloads. Some are over 40 MB's.

Search for "CTL" http://www.ul.com/regulators/clicks.cfm ... chLibIndex

422.16 (B)(1) Flexible Cords Electrically operated kitchen waste disposers are permitted to be cord-and-plug connected with a flexible cord identified as suitable for the purpose in the installation instructions of the appliance manufacturer, where all of the following conditions are met: (1) The flexible cord is required to be terminated with a grounding-type attachment plug.

Here's a good source for information: http://www.nema.org/prod/be/conduit/

OK, I remembered after I asked you the question, anyway they are still here in my library along with over 30 years worth of collections looking for new homes: 1.) 1953 National Electrical Code, 42nd Anniversary Under NFPA Sponsor Ship, Hardback Volume V from the National Fire Codes, includes entire NEC, and original catalog of advertisers, and electrical provisions of other NFPA Standards. 2.) Electrical Code Diagrams, Volume I, by B. Z. Segall, 1952, Library of Congress Catalog Number: 51-12643, First Edition based on the 1951 edition of the National Electrical Code.

Sorry, I fixed the link and changed it above as follows: http://www.nfpa.org/assets/files/PDF/ne ... PDraft.pdf Your link is for part of the ROC, all of which can be found here: http://www.nfpa.org/categoryList.asp?categoryID=611

Search for ROP and over 2600 will come up. This draft will be modified, based on ROC which are Comments to the Proposals, and many of them will change, so nothing is in concrete yet, that will be determined next week at the NFPA meeting in Boston, MA http://www.nfpa.org/assets/files/PDF/ne ... PDraft.pdf I understand that the new 2008 NEC will highlight the changes in the text of the NEC, and also include the ROP and ROC numbers for anyone who wants to find out the history of the proposed changes.

Gary: My original image showed the "upside down locknut" I was identifying and your comments took the discussion toward a special type of fitting and yes the "locknut" is as you described and as you stated. The issue is that the ordinary simple locknut we use on threaded connections is not permitted to be used at the top of the entry into an outdoor enclosure where it would not provide a weather tight or "rain tight" termination, and the inside of the enclosure would have a locknut, or a locknut and bushing. Think of it this way, the open knockout in the top of any box out of doors is never to be used with anything other that a listed fitting designed for that use.

Yes I agree Paul: The identification of electrical materials, and using correct terms is often what confuses people. We need to develop an extensive pictorial list showing proper and improper uses of fittings. The "Watertight Hubs" that were called "locknut's" here are what may be the problem. I extracted the first page and the information, although showing "HazLoc" equipment does not call this fitting a locknut. I have some more pictures showing the use of a fitting that was not designed for use in a wet location, trouble is I have so many of them it may take me a while. I am in the middle of building my new 2008 NEC Show using a new machine with Vista, so far so good, better be! I need programs that will work. I will have a backup XP machine with me just in case. What do you mean here: "sorry about the book thing..I got side tracked" Download Attachment: fitting.pdf 141.61 KB

Your picture shows a "Meyers Hub" and it is the same type of fitting that is used in the picture I posted above. Ordinary locknuts are not designed to be used in wet locations. http://www.foxelectricsupply.com/conten ... ryId=25003 http://www.foxelectricsupply.com/conten ... ryId=25005

Look at this video for GFCI information: http://www.electricsmarts.com/container ... d=9503&tid

A locknut installed on the top of any enclosure in a wet location would not be permitted. All fittings that are used must be listed for wet locations. http://www.nema.org/stds/fb2-10.cfm#download

Wet and Damp Locations Luminaires (fixtures) installed in wet or damp locations shall be installed so that water cannot enter or accumulate in wiring compartments, lampholders, or other electrical parts. All luminaires (fixtures) installed in wet locations shall be marked, "Suitable for Wet Locations.'' All luminaires (fixtures) installed in damp locations shall be marked, "Suitable for Wet Locations'' or "Suitable for Damp Locations.'' Download Attachment: PoleLight1.jpg 34.78 KB Download Attachment: PoleLight2.jpg 31.09 KB

312.2(A): For enclosures installed in wet locations, revised to require any cable or raceway that enters on the top or on the side above the level of uninsulated live parts in the enclosure be provided with fittings listed for wet locations. Download Attachment: locknut.jpg 60.38 KB

http://wichita.gov/NR/rdonlyres/72D3154 ... Manual.pdf

Check this great new tool by UL [:-thumbu] http://www.ul.com/regulators/codelink/

No tricks, just hoping that someone had a copy of the first time the rule was added to the code. PS: Bathrooms are defined in Article 100 and when there is no basin in one the rule for the GFCI's is not applicable.

How long have electrical panelboards been allowed in bathrooms? The same question as it relates to the service disconnecting means?

Qualified Person. One who has skills and knowledge related to the construction and operation of the electrical equipment and installations and has received safety training on the hazards involved. FPN: Refer to NFPA 70E-2004, Standard for Electrical Safety in the Workplace, for electrical safety training requirements

This was posted in response to my question on a forum at www.jlconline.com asking for ballpark sizing for a service for a new building: "We highly recommend that you obtain the services of a qualified person who is a licensed electrician to deal with this issue. The Internet is the wrong place to be soliciting advice on any critical major electrical installation. A qualified person is needed on site to assess the situation, provide the design, and install the components." Edited by this writer:

Please define: "Draw Inspection" for me. The "foundation electrical" may have been calling for an inspection of the electrode in the footing that will be part of the GES to which the GEC will be connected. If so, that is usually an inspection that is made by the local inspector. Does your SOP list this for a HI to inspect and note?