Panel 6 Agenda Page 1

Transcription

1 National Fire Protection Association 1 Batterymarch Park, Quincy, MA Phone: Fax: AGENDA NEC Code-Making Panel 6 First Draft Meeting January 19-21, 2015 Hilton Head, SC Item No. Subject Call to Order Introduction of Members and Guests Approval of A2013 ROC Meeting Minutes Review of Meeting Procedures and Revision Schedule Comments/Questions from Committee Members Task Group Reports Processing of Public Inputs Fire Protection Research Foundation Requests Old Business New Business Adjournment Panel 6 Agenda Page 1

2 National Fire Protection Association 1 Batterymarch Park, Quincy, MA 'l Phone: Fax NEG Code-Making Panel 6 ROC Meeting Minutes 1. List date(s) and location of meeting: December 6 and 7, Thursday and Friday, Crowne Plaza Resort, Redondo Beach, CA (The scheduled saturday was not required, but we did need two very full days.) 2. List names of TC members and guests in attendance (or attach sign-in sheets): See attached 3. List names of guests addressing the committee (if any): Howard Herndon re: Comment C6-36, about 1g minutes including CMP questioning, and Christel Hunter (CMP-6) re: Comment C6-37, about 20 minutes including CMP questioning. 4, lf applicable, number of public comments acted upon: B0 5. lf applicable, number of committee generated proposals/comments: One 6. lf applicable, list any appointed task groups and include the chair and member names and the task group scope. On Thursday evening: task group for initial preparation of Panel Statements for Comments 10, 11, 12, and 14 - Chaired by Christel Hunter, with Bill Laidler, Todd Chrisman, Sam Friedman, and Peter Bowers. 7. lf applicable, list any request contained in a committee statement that requires Gorrelating Gommittee attention : CMP-6 has a strong desire to have a research foundation project investigating the ambient temperature adjustments as a whole, and as they relate to specific insulation types. See lf applicable, list any committee actions that need to be referred to another technical committee for correlation : Our action of C6-66 is valid IFF the modified definition goes into effect for the 2014 NEC. 9. List any additional information that you feel would be helpful to the Correlating Committee, staff, or to the process in general: The panel's last sentence in the Statement is meant to refer to the fact that page-layout difficulties sometimes cause a section and lts table to be disjointed, causing usage problems. NEC Code-Making Panel 6 ROC Meeting Minutes NEC Cycle Panel 6 Agenda Page 2

3 9. Continued There ls also another specific publishing practice which causes usage problems. In the 2011 NEC, page 152, bottom-left: the practice of not indenting in accordance with outline hierarchy, makes the non-parenthetic small letters appear to be superior to the parenthetic small letters, which is not the true case. The indentation of the parenthetic small letters appears to be twice what is necessary in the first place. The ROP Draft error of Table (BX3Xc) will be fixed by default via reverting to the NEC's 2011 version of the table as long as Panel Comment C6-14a is accepted. Should it not be accepted, then the Table MUST be fixed per my Proposal ballot statement - a whole set of dimensions was omitted in the A2013 ROP Draft. The panel requests that additions be made to the Index: Under "Ampacities;" add "Bare bars (4)", and/or under "Busbars" add "Bare bars (A)" 10. ldentify any issues that should be brought to the attention of the NFPA Research Foundation for their input and assistance: CMP-6 has a strong desire to have a research foundation project investigating the ambient temperature adjustments as a whole, and as they relate to specific insulation types. The properties of the types of insulation which have come into existence since the correction factors were introduced may have made the corrections invalid. Synthetic insulations have significantly ditferent properties than the original rubber-based types. Degradation due to longterm heat exposure appears to be somewhat different for all synthetic insulations, and possibly significantly different for the most modern types of insulation. The ampacity correction factors may be overstated for many modern insulation types. Part of the testing must Include the effect of Insulation displacemenuflow while under small pressure-point compression and heated conditions; avoidance of ground-faults is a must. Insulation quality testing should Include wet conditions with lonic-water for allwet-location insulations since insulation cracking ls a known occurrence, and conductive water would exacerbate a ground-fault or short-circuit condition, whereas the insulation might pass testing under dry conditions. The time-frame to utilize as the projected Insulation-life for this testing ls more difficult to set; certainly 40 to 50 year-old wiring ls very common. Signature Name (Please Print) l,-r/ NEC Code-Making Panel 6 ROC Meeting Minutes NEC Cycle Panel 6 Agenda Page 3

4 Panel PI's Include file PI Number none Public Input No Physical Damage all none Public Input No Actual volts all none Public Input No various global editorial all none Public Input No V DC all none Public Input No.4329 All Definitions all A Public Input No Nominal all A Public Input No Chapter 9 6 and 8 Section Panel A Public Input No.331 Previous Hold 6 none Public Input No , Ampacity. 6 none Public Input No none Public Input No none Public Input No (E) 6 none Public Input No (E) 6 none Public Input No (F) 6 none Public Input No Section after (H)(1) 6 none Public Input No (H)(1) 6 none Public Input No (H)(1) 6 none Public Input No (H)(2) 6 none Public Input No (H)(3) 6 none Public Input No (H)(5) 6 none Public Input No (H)(5) 6 A Public Input No none Public Input No (A)(1) 6 none Public Input No (A)(2) 6 A Public Input No (B) 6 A Public Input No (B) 6 none Public Input No (B)(3) 6 CI Public Input No (B)(3) 6

5 Panel PI's none Public Input No (B)(3) 6 CI Public Input No (B)(3) 6 A Public Input No (B)(3) 6 A Public Input No (B)(3) 6 none Public Input No (B)(3) 6 none Public Input No (B)(3) 6 none Public Input No (B)(3) 6 none Public Input No (B)(3) 6 none Public Input No (B)(3) 6 none Public Input No (B)(7) 6 none Public Input No (B)(7) 6 none Public Input No (B)(7) 6 A Public Input No (B)(7) 6 none Public Input No (B)(7) 6 none Public Input No (B)(7) 6 A Public Input No (B)(7) 6 none Public Input No (B)(7) 6 none Public Input No (B)(7) 6 NR Public Input No (C) 6 A Public Input No (C) 6 none Public Input No (C) 6 A Public Input No (C) 6 none Public Input No (A) 6 none Public Input No (B) 6 none Public Input No (B)(2) 6 none Public Input No (B)(2) 6 none Public Input No (B)(4) 6 none Public Input No (C) 6 none Public Input No (C) 6 none Public Input No Table (C)(4) 6 none Public Input No , none Public Input No none Public Input No none Public Input No (A) 6

6 Panel PI's none Public Input No (B) 6 none Public Input No.2460 Article none Public Input No.1199 Article none Public Input No none Public Input No none Public Input No Public Input No , Part III. 6 none Public Input No none Public Input No A Public Input No none Public Input No NR Public Input No CI Public Input No A Public Input No (A) 6 none Public Input No (A) 6 A Public Input No (A) 6 none Public Input No (A) 6 none Public Input No none Public Input No none Public Input No.1070 Section after 400.7(A) 6 none Public Input No none Public Input No none Public Input No none Public Input No none Public Input No (B) 6 none Public Input No (B) 6 none Public Input No none Public Input No none Public Input No none Public Input No (A) 6 none Public Input No (B) 6 none Public Input No none Public Input No

7 Panel PI's none Public Input No none Public Input No none Public Input No none Public Input No none Public Input No A Public Input No none Public Input No NR Public Input No.644 Chapter 9 Tables 5 and 5(A) 6 none Public Input No Chapter 9, Table 5A 6 PI No Chapter 9, Table Note 11 new 6 none Public Input No.4765 Annex B 6 none Public Input No.4765 Annex B 6

8 Panel 6 Agenda Page 8

9 Page 1 of 1 11/20/2014 Public Input No NFPA [ Global Input ] Change "physical damage" to "mechanical damage" Statement of Problem and Substantiation for Public Input The term "physical damage" is often a source of confusion. One of the points of confusion is what is included in "physical damage"; for example, is exposure to corrosive gas included? I believe other language in the code covers that type of situation, and "mechanical damage" more clearly reflects the intent of the requirements in the NEC that currently refer to "physical damage". Submitter Information Verification Submitter Full Name: Christel Hunter Organization: General Cable Street Address: City: State: Zip: Submittal Date: Mon Sep 22 20:02:13 EDT 2014 Copyright Assignment I, Christel Hunter, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am Christel Hunter, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature Panel 6 Agenda Page 9

10 Page 1 of 2 Public Input No NFPA [ Global Input ] Search for Replace with 50 volts 50 actual volts 50 Volts 50 Actual Volts 50-volts 50-actual-volts 50-Volts 50-Actual-Volts Search for 150 volts 150 actual volts 150 Volts 150 Actual Volts 150-volts 150-Volts Search for 150-actual-volts 150-Actual-Volts 300 volts 300 actual volts 300 Volts 300 Actual Volts 300-volts 300-Volts Search for 300-actual-volts 300-Actual Volts 2000 volts 2000 actual volts 2000 Volts 2000 Actual Volts Search for 2001 volts 2001 actual volts 2001 Volts 2001 Actual Volts Search for 5000 volts 5000 actual volts 5000 Volts 5000 Actual Volts Search for 35,000 volts 35,000 actual volts 35,000 Volts 35,000 Actual Volts Replace with Replace with Replace with Replace with Replace with Replace with 35,000 V 35,000 Actual V These search and replace operations will pick up all references to the listed voltages, alll of which are actual rather than nominal values. Statement of Problem and Substantiation for Public Input This section uses voltages that are "actual" hard limits. Refer to the substantiation for 1902 for more information. Related Public Inputs for This Document Panel 6 Agenda Page /20/2014

11 Page 2 of 2 11/20/2014 Related Input Public Input No NFPA [Global Input] Relationship This submission depends on 1902 Submitter Information Verification Submitter Full Name: JAMES WILLIAMS Organization: none Affilliation: Retired Master Electrician Street Address: City: State: Zip: Submittal Date: Wed Oct 15 19:51:34 EDT 2014 Copyright Assignment I, JAMES WILLIAMS, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am JAMES WILLIAMS, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature Panel 6 Agenda Page 11

12 Page 1 of 1 11/20/2014 Public Input No NFPA [ Global Input ] for "provided that the" read "if the" for "provided that it" read "if it" for "provided that all" read "if all" for "provided that such" read "if the" Statement of Problem and Substantiation for Public Input NEC_StyleManual_2011.pdf: Word Clarity. Words and terms used in the NEC shall be specific and clear in meaning, and shall avoid jargon, trade terminology, industry-specific terms, or colloquial language that is difficult to understand. NEC language shall be brief, clear, and emphatic. The following are examples of old-fashioned expressions and word uses that shall not be permitted: "provided that" Submitter Information Verification Submitter Full Name: JAMES WILLIAMS Organization: none Affilliation: Retired Master Electrician Street Address: City: State: Zip: Submittal Date: Tue Nov 04 10:33:19 EST 2014 Copyright Assignment I, JAMES WILLIAMS, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am JAMES WILLIAMS, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature Panel 6 Agenda Page 12

13 Page 1 of 2 Public Input No NFPA [ Global Input ] Change the use of the phrase "60 V DC" to "Nominal 50V DC" throughout the NFPA 70 Standard. Statement of Problem and Substantiation for Public Input The NEC is conflicted in its use of the terminology which defines the DC voltage level on when certain code rules apply. It would appear that half of the NEC code sections refer to 60V dc as the voltage limit which mandates certain code requirements. And it would appear the other half refers to "50V DC". The code should be consistent in its approach. This public input seeks to resolve this conflict and come up with consistent terminology throughout the code. In (A)(1)(b) working space requirements are for 60V DC refers to 60V DC for grounding requirements for DC systems refers to listing requirements for certain DC equipment at 60V (D) refers to elevator requirements for uninsulated parts at no more than 60V DC. Article 640 and 647 have similar DC voltage limits. For the 50 volt level guarding of live parts in refers to both AC and DC systems refers to marking of conductors at 50 volts or less regardless of voltage type. Article 720 refers to systems at 50 volts or less whether DC or AC (C)(2) refers to marking of conductors for DC systems 50V or less (C)(2) refers to identification of DC feeder conductors at 50V or less. Section states that overcurrent protection shall not be required for conductors from a battery with a nominal voltage of 50 volts or less refers to DC storage batteries that operate at a voltage of 50 volts, nominal or less. There are many other codes sections not mentioned which vary back and forth between 50 and 60V. The code is not consistent. I am recommending that globally the term 60V DC be replaced with 50V nominal DC. Submitter Information Verification Submitter Full Name: Lawrence Ayer Organization: Biz Com Electric, Inc. Affilliation: Independent Electrical Contractors, Inc. Street Address: City: State: Zip: Submittal Date: Tue Nov 04 21:18:12 EST 2014 Copyright Assignment I, Lawrence Ayer, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. Panel 6 Agenda Page /20/2014

14 Page 2 of 2 By checking this box I affirm that I am Lawrence Ayer, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature Panel 6 Agenda Page /20/2014

15 Page 1 of 2 Public Input No NFPA [ Global Input ] Move all definitions to Article 100. It seems that every cycle definitions are moved from a.2 section within an Article to Article 100 because someone points out that the particular term is used in more than one Article. For NEC users, especially new ones it makes understanding the rules that much more difficult. We also have examples like Dustight that is defined differently in Article 100 as compared to That creates confusion. A greater problem is when a term is defined within an Article yet the term is used elsewhere in the NEC. Is the term in the Article without it being defined supposed to be something different or can it be used the same way? That also creates confusion. Some examples include Metal wireway which is defined in yet the term is used elsewhere such as in Articles 210, 225, etc. A Tap conductor is defined in 240.2, is a motor tap conductor supposed to be something different in Article 430? As stated in the NEC Style Manual definitions cannot contain requirements yet it is often argued that stating that something is or is not does not necessarily constitute a requirement. If it is not, then it doesn't meet the definition. If the term is used in multiple articles then creating a definition that is usable in all those Articles is the best approach. Specific requirements which can be different can still be placed in each Article Many other standards have all definitions in one location. Constancy will be improved by having the panels develop language that will use the same terms without creating unnecessary conflicts. I understand the Correlating Committee recently agreed to leave terms in the.2 Section of Articles. I respectfully ask them to reconsider that position. Statement of Problem and Substantiation for Public Input It seems that every cycle definitions are moved from a.2 section within an Article to Article 100 because someone points out that the particular term is used in more than one Article. For NEC users, especially new ones it makes understanding the rules that much more difficult. We also have examples like Dustight that is defined differently in Article 100 as compared to That creates confusion. A greater problem is when a term is defined within an Article yet the term is used elsewhere in the NEC. Is the term in the Article without it being defined supposed to be something different or can it be used the same way? That also creates confusion. Some examples include Metal wireway which is defined in yet the term is used elsewhere such as in Articles 210, 225, etc. A Tap conductor is defined in 240.2, is a motor tap conductor supposed to be something different in Article 430? As stated in the NEC Style Manual definitions cannot contain requirements yet it is often argued that stating that something is or is not does not necessarily constitute a requirement. If it is not, then it doesn't meet the definition. If the term is used in multiple articles then creating a definition that is usable in all those Articles is the best approach. Specific requirements which can be different can still be placed in each Article Many other standards have all definitions in one location. Constancy will be improved by having the panels develop language that will use the same terms without creating unnecessary conflicts. I understand the Correlating Committee recently agreed to leave terms in the.2 Section of Articles. I respectfully ask them to reconsider that position. Panel 6 Agenda Page /20/2014

16 Page 2 of 2 11/20/2014 Submitter Information Verification Submitter Full Name: Paul Dobrowsky Organization: Self Street Address: City: State: Zip: Submittal Date: Thu Nov 06 19:36:47 EST 2014 Copyright Assignment I, Paul Dobrowsky, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am Paul Dobrowsky, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature Panel 6 Agenda Page 16

17 Page 1 of 14 Public Input No NFPA [ Global Input ] Panel 6 Agenda Page /20/2014

18 Page 2 of 14 Globally edit the text by removing the following text strings nominal Nominal, nominal, Nominal nominal, Nominal,, nominal,, Nominal, That is, remove the word nominal and any optional commas preceding or following it. This is a little too broad, I will provide additional submissions that repair "collateral damage" to nominals not related to voltage. Substantiation: The NEC contains 2744 sentences that contain volt, voltage, and V. Some of the V are false positives (part V, Volume...). 317 sentences contain nominal. The use of the word nominal does not appear to have a particular pattern when it is found in connection to voltage. Having some voltages marked as nominal and others not marked when both are intended to be nominal, leads to confusion Making it clear what a particular voltage reference meains is important. Some of the voltage references are for exact voltages. This is true for most "limit" specifications such as "the voltage shall not exceed 42.4 volts". Other voltages are nominal and refer to a range of voltages. The specification of 600 volts, which is a utilization voltage, and 1000 volts, which is the "new" 600 volts, is problematical. I have chosen to treat these references as nominal. I propose that the NEC indicate that all voltages listed in it are nominal, unless specifically marked actual This would rid the document of uncertainty as to whether or not a given voltage specification was actual or nominal. Also add a table that indicates that the three groups of nominal voltages refer to the same thing: for instance 125/250 device rating, 120/240 load rating, and 115/230 motor rating. Coordination: These changes need to be co-ordinated with other submissions These submission will be keyed back to this submission number (1902). They include defining Actual Voltage and adding actual where appropriate. (1) nominal for battery circuits (2) nominal for 120/60 cneter grounded AC circuits (3) Nearly always nominal (4) Occasionally nominal (5) nominal in 600 Voltages references in NEC Panel 6 Agenda Page /20/2014

19 Page 3 of 14 Actual (exact) <-- nominal (utilization) (4) / (1) (5) Y/ (2) Y/ Y/ (3) Additional Proposed Changes File Name Description Approved NFPA-9102_libreOffice.pdf table for substantiation Statement of Problem and Substantiation for Public Input Panel 6 Agenda Page /20/2014

20 Page 4 of 14 The NEC contains 2744 sentences that contain volt, voltage, and V. Some of the V are false positives (part V, Volume...). 317 sentences contain nominal. The use of the word nominal does not appear to have a particular pattern when it is found in connection to voltage. Having some voltages marked as nominal and others not marked when both are intended to be nominal, leads to confusion ALL RELATED submissions link back to this (1902). Although other related submissions may be interrelated, such links would grow exponentially (the mathematical exponentially, not the TV news exponentially) Making it clear what a particular voltage reference meains is important. Some of the voltage references are for exact voltages. This is true for most "limit" specifications such as "the voltage shall not exceed 42.4 volts". Other voltages are nominal and refer to a range of voltages. The specification of 600 volts, which is a utilization voltage, and 1000 volts, which is the "new" 600 volts, is problematical. I have chosen to treat these references as nominal. I propose that the NEC indicate that all voltages listed in it are nominal, unless specifically marked actual This would rid the document of uncertainty as to whether or not a given voltage specification was actual or nominal. Also add a table that indicates that the three groups of nominal voltages refer to the same thing: for instance 125/250 device rating, 120/240 load rating, and 115/230 motor rating. Coordination: These changes need to be co-ordinated with other submissions These submission will be keyed back to this submission number (1902). They include defining Actual Voltage and adding actual where appropriate. (1)nominal for battery circuits (2)nominal for 120/60 center grounded AC circuits (3)Nearly always nominal (4)Occasionally nominal (5)nominal in 600 {{table formatting was lost when copying it in}}} Actual (exact) <-- nominal (utilization) <-- Voltages references in NEC (4) / (1) (5) Y/ (5) (2) Y/277 Panel 6 Agenda Page /20/2014

21 Page 5 of Y/ (3) Related Public Inputs for This Document Panel 6 Agenda Page /20/2014

22 Page 6 of 14 11/20/2014 Related Input Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Section No (C)] Public Input No NFPA [Section No (B)] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [New Section after 110.4] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Section No (C)] Public Input No NFPA [Section No (B)] Public Input No NFPA [Section No (E)] Public Input No NFPA [Section No (C)] Public Input No NFPA [Section No ] Public Input No NFPA [Section No. 90.9(C)(1)] Public Input No NFPA [Sections I, I] Public Input No NFPA [Section No ] Public Input No NFPA [Section No (A)(1)] Public Input No NFPA [Section No (A)] Public Input No NFPA [Section No (A)] Public Input No NFPA [Sections 200.7(B), 200.7(C)] Public Input No NFPA [Section No ] Relationship 1902 depend on this change 1902 depends on this submission this submission depends on 1902 this submission fixes a possible error in application of 1902 Ths submission depends on 1902 this submission depends on 1902 THis submission depends on 1902 This submissin depends on 1902 This submittal depends on 1902 This submittal depends on 1902 Panel 6 Agenda Page 22

23 Page 7 of 14 11/20/2014 Public Input No NFPA [Section No (C)(2)] Public Input No NFPA [Section No (D)] Public Input No NFPA [Section No ] Public Input No NFPA [Section No (C)] Public Input No NFPA [Section No (A)] Public Input No NFPA [Section No [Excluding any Sub-Sections]] Public Input No NFPA [Section No [Excluding any Sub-Sections]] Public Input No NFPA [Section No ] Public Input No NFPA [Sections , ] Public Input No NFPA [Definition: Supervised Industrial Installation.] Public Input No NFPA [Section No ] Public Input No NFPA [Section No (A)] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Section No (D)] Public Input No NFPA [Section No ] Public Input No NFPA [Section No [Excluding any Sub-Sections]] Public Input No NFPA [Section No (A)] Public Input No NFPA [Section No (A)] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Sections (A), (B), (C)] Public Input No NFPA [Section No (C)] This submissio depends on 1902 This submission depends on 1092 Panel 6 Agenda Page 23

24 Page 8 of 14 11/20/2014 Public Input No NFPA [Sections (A), (B)] Public Input No NFPA [Section No ] Public Input No NFPA [Global Input] Public Input No NFPA [Section No (B)] Public Input No NFPA [Section No (B)(1)] Public Input No NFPA [Definition: Medium Voltage Cable, Type MV.] Public Input No NFPA [Section No (B)] Public Input No NFPA [Section No. Table] Public Input No NFPA [Section No ] Public Input No NFPA [Section No (A)] Public Input No NFPA [Section No (B)] Public Input No NFPA [Section No (C)] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Section No (A)] Public Input No NFPA [Section No (B)] Public Input No NFPA [Section No (A)] Public Input No NFPA [Section No (H)] Public Input No NFPA [Section No ] Public Input No NFPA [Article 411] Public Input No NFPA [Section No ] Public Input No NFPA [Section No (B)] Public Input No NFPA [Section No (C)] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Panel 6 Agenda Page 24

25 Page 9 of 14 11/20/2014 Public Input No NFPA [Section No ] Public Input No NFPA [Section No (B)] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Section No (B)] Public Input No NFPA [Section No (C)] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Section No (C)] Public Input No NFPA [Section No (C)] Public Input No NFPA [Section No ] Public Input No NFPA [Section No (A)(5)] Public Input No NFPA [Section No (A)] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Definition: Example D13 Cable Tray Calculations] Public Input No NFPA [Definition: Simple Apparatus.] Public Input No NFPA [Section No ] This section uses a voltage that is an "actual" hard limit. Refer to the substantiation for 1902 for more information. Panel 6 Agenda Page 25

26 Page 10 of 14 11/20/2014 Public Input No NFPA [Section No (B)(1)] Public Input No NFPA [Section No (A)] Public Input No NFPA [Section No ] Public Input No NFPA [Section No (D)] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Sections (A), (B)] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Section No (A)] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Section No (C)] Public Input No NFPA [Section No ] Public Input No NFPA [Section No (F)] Public Input No NFPA [Section No (A)] Public Input No NFPA [Section No (D)] Public Input No NFPA [Section No (C)(3)] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Section No (A)] Public Input No NFPA [Section No (B)(4)] Panel 6 Agenda Page 26

27 Page 11 of 14 11/20/2014 Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Section No (B)] Public Input No NFPA [Section No (A)] Public Input No NFPA [Section No (A)] Public Input No NFPA [Section No ] Public Input No NFPA [Definition: Branch Circuit, Multiwire.] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Sections , ] Public Input No NFPA [Definition: Low Voltage Contact Limit.] Public Input No NFPA [Section No (A)(4)] Public Input No NFPA [Section No (A)] Public Input No NFPA [Section No (B)] Public Input No NFPA [Section No (B)] Public Input No NFPA [Section No (C)] Public Input No NFPA [Section No (A)] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Section No (A)] Unneed if the 1902 group is accepted Panel 6 Agenda Page 27

28 Page 12 of 14 11/20/2014 Public Input No NFPA [Section No (C)] Public Input No NFPA [Section No (D)] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Section No (A)] Public Input No NFPA [Section No (D)] Public Input No NFPA [Section No ] Public Input No NFPA [Section No (B)] Public Input No NFPA [Section No (A)] Public Input No NFPA [Section No ] Public Input No NFPA [Article 720] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Definition: ] Public Input No NFPA [Section No (A) [Excluding any Sub-Sections]] Public Input No NFPA [Section No (A)] Public Input No NFPA [Section No (D)] Public Input No NFPA [Section No ] Public Input No NFPA [Section No (E)] Public Input No NFPA [Section No (G)] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Panel 6 Agenda Page 28

29 Page 13 of 14 11/20/2014 Public Input No NFPA [Section No [Excluding any Sub-Sections]] Public Input No NFPA [Section No [Excluding any Sub-Sections]] Public Input No NFPA [Section No (G)] Public Input No NFPA [Section No (C)] Public Input No NFPA [Section No (A)(4)] Public Input No NFPA [Section No (B)] Public Input No NFPA [Section No (B)] Public Input No NFPA [Section No (A) [Excluding any Sub-Sections]] Public Input No NFPA [Section No (A)(1)] Public Input No NFPA [Section No (B)] Public Input No NFPA [Section No (A)] Public Input No NFPA [Section No (C)] Public Input No NFPA [Section No ] Public Input No NFPA [Section No ] Public Input No NFPA [Section No (A) [Excluding any Sub-Sections]] Public Input No NFPA [Section No (A) [Excluding any Sub-Sections]] Public Input No NFPA [Section No (B) [Excluding any Sub-Sections]] Public Input No NFPA [Section No (A)(4)] Public Input No NFPA [Section No. Table] Public Input No NFPA [Section No. Table] Public Input No NFPA [Section No. B (B)(2)] Public Input No NFPA [Section No. B (B)(7)] Public Input No NFPA [Section No. Table] Panel 6 Agenda Page 29

30 Page 14 of 14 11/20/2014 Public Input No NFPA [Section No. Table] Public Input No NFPA [Section No. Table] Public Input No NFPA [Section No. Table] Public Input No NFPA [Section No. Table] Public Input No NFPA [Section No. Table] Public Input No NFPA [Section No. Table] Public Input No NFPA [Section No. Table] Public Input No NFPA [Section No. Table] Public Input No NFPA [Section No. Table] Public Input No NFPA [Section No. Table] Public Input No NFPA [Section No. Table] Submitter Information Verification Submitter Full Name: JAMES WILLIAMS Organization: none Affilliation: Retired Master Electrician Street Address: City: State: Zip: Submittal Date: Wed Oct 15 11:34:29 EDT 2014 Copyright Assignment I, JAMES WILLIAMS, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am JAMES WILLIAMS, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature Panel 6 Agenda Page 30

31 Voltages found in NEC Actual (Exact) Nominal (Utilization) (4) / (1) (5) Y/ (5) (2) Y/ Y/ (3) (1)Nominal for battery circuits (2)Nominal for 120/60 center grounded AC circuits (3)Nearly always nominal (4)Occasionally nominal (5)Nominal in 600 Panel 6 Agenda Page 31

32 Page 1 of 23 11/20/2014 Public Input No NFPA [ Chapter 9 ] Chapter 9 Tables Tables with chapter 9 shall be for copper/al/copper clad al/ or other equivalent listed materials for the intended use. Minimum wire size of #18 awg and minumum conduit trade size of 3/8" (designation 12) shall be utilized. Other listed and approved by AHJ may be used where allowed within the CODE Table 1 Table 1 Percent of Cross Section of Conduit and Tubing for Conductors and Cables Number of Conductors and/or Cables Cross-Sectional Area (%) Over 2 40 Informational Note No. 1: Table 1 is based on common conditions of proper cabling and alignment of conductors where the length of the pull and the number of bends are within reasonable limits. It should be recognized that, for certain conditions, a larger size conduit or a lesser conduit fill should be considered. Informational Note No. 2: When pulling three conductors or cables into a raceway, if the ratio of the raceway (inside diameter) to the conductor or cable (outside diameter) is between 2.8 and 3.2, jamming can occur. While jamming can occur when pulling four or more conductors or cables into a raceway, the probability is very low. Notes to Tables (1) See Informative Annex C for the maximum number of conductors and fixture wires, all of the same size (total cross-sectional area including insulation) permitted in trade sizes of the applicable conduit or tubing. (2) Table 1 applies only to complete conduit or tubing systems and is not intended to apply to sections of conduit or tubing used to protect exposed wiring from physical damage. (3) Equipment grounding or bonding conductors, where installed, shall be included when calculating conduit or tubing fill. The actual dimensions of the equipment grounding or bonding conductor (insulated or bare) shall be used in the calculation. (4) Where conduit or tubing nipples having a maximum length not to exceed 600 mm (24 in.) are installed between boxes, cabinets, and similar enclosures, the nipples shall be permitted to be filled to 60 percent of their total crosssectional area, and (B) (3)(a) adjustment factors need not apply to this condition. (5) For conductors not included in Chapter 9, such as multiconductor cables and optical fiber cables, the actual dimensions shall be used. (6) For combinations of conductors of different sizes, use actual dimensions or Table 5 and Table 5A for dimensions of conductors and Table 4 for the applicable conduit or tubing dimensions. Panel 6 Agenda Page 32

33 Page 2 of 23 11/20/2014 (7) When calculating the maximum number of conductors or cables permitted in a conduit or tubing, all of the same size (total cross-sectional area including insulation), the next higher whole number shall be used to determine the maximum number of conductors permitted when the calculation results in a decimal greater than or equal to 0.8. When calculating the size for conduit or tubing permitted for a single conductor, one conductor shall be permitted when the calculation results in a decimal greater than or equal to 0.8. (8) Where bare conductors are permitted by other sections of this Code, the dimensions for bare conductors in Table 8 shall be permitted. (9) A multiconductor cable, optical fiber cable, or flexible cord of two or more conductors shall be treated as a single conductor for calculating percentage conduit fill area. For cables that have elliptical cross sections, the crosssectional area calculation shall be based on using the major diameter of the ellipse as a circle diameter. (10) The values for approximate conductor diameter and area shown in Table 5 are based on worst-case scenario and indicate round concentric-laystranded conductors. Solid and round concentric-lay-stranded conductor values are grouped together for the purpose of Table 5. Round compactstranded conductor values are shown in Table 5A. If the actual values of the conductor diameter and area are known, they shall be permitted to be used. Table 2 Table 2 Radius of Conduit and Tubing Bends Conduit or Tubing Size One Shot and Full Shoe Benders Other Bends Metric Designator Trade Size mm in. mm in Table 4 Table 4 Dimensions and Percent Area of Conduit and Tubing (Areas of Conduit or Tubing for the Combinations of Wires Permitted in Table 1, Chapter 9) Panel 6 Agenda Page 33