Report on Proposals June 2013 NFPA 70

Transcription

1 14-1 Log #1170m NEC-P14 Russell LeBlanc, The Peterson School In articles 90 through 830, if the wording is not already there, then add the words (or other structure(s)) after the word BUILDING(S) wherever the intent of the requirement is to also include STRUCTURES as well as buildings. There is a flaw in the NEC. The term "building" is used over 1000 times in the NEC, and in most of the cases the words "or other structure" should follow and apply the same requirements to bridges, billboards, towers, tanks, and other structures that are by definition NOT BUILDINGS. One specific example I can use is section Wiring on Buildings. I believe that this section is also intended to be applied structures, but the wording "or other structures" is not in the heading or the paragraph. There are literally thousands of other instances throughout the code that this same problem exists. This can easily be seen by doing an electronic search for the word "building". In some cases the words "or other structure" (or similar wording) are present, but in the vast majority where the requirements should also be applied to structures other than buildings, the wording is not there. The submitter has not provided specific proposed text for his proposal in accordance with 4.3.3(c) of the Regulations Governing Committee Projects Log #921m NEC-P14 Joe Tedesco, Boston, MA The term "adequate" and "adequately" and "inadequately" and "inadequate" should be replaced with terms that can be properly enforced and understood. Terms are not defined and are considered vague and unenforceable per Table in the NEC Style Manaual. They are all "incorrect" 148 times in the NEC. The submitter has not provided specific proposed text for his proposal in accordance with 4.3.3(c) of the Regulations Governing Committee Projects. 1

2 14-3 Log #2638e NEC-P14 John R. Kovacik, Underwriters Laboratories Inc. Update the references to UL Standards in the Informational Notes as shown below: Equipment enclosed in a case that is capable of withstanding an explosion of a specified gas or vapor that may occur within it and of preventing the ignition of a specified gas or vapor surrounding the enclosure by sparks, flashes, or explosion of the gas or vapor within, and that operates at such an external temperature that a surrounding flammable atmosphere will not be ignited thereby. Informational Note: For further information, see ANSI/UL , For purposes of Articles 500 through 504 and Articles 510 through 516, the following definitions apply. Equipment enclosed in a manner that excludes dusts and does not permit arcs, sparks, or heat otherwise generated or liberated inside of the enclosure to cause ignition of exterior accumulations or atmospheric suspensions of a specified dust on or in the vicinity of the enclosure. Informational Note: For further information on dustignitionproof enclosures, see Type 9 enclosure in ANSI/NEMA ,, and ANSI/UL ,. Informational Note: For further information, see ANSI/UL ,. Informational Note No. 2: Female NPT threaded entries use a modified National Standard Pipe Taper (NPT) thread with thread form per ANSI/ASME B ,. See ANSI/UL ,. A circuit in which any spark or thermal effect is incapable of causing ignition of a mixture of flammable or combustible material in air under prescribed test conditions. Informational Note: Test conditions are described in ANSI/UL ,. For purposes of this article, the following definitions apply. Equipment enclosed in a manner that excludes dusts and does not permit arcs, sparks, or heat otherwise generated or liberated inside of the enclosure to cause ignition of exterior accumulations or atmospheric suspensions of a specified dust on or in the vicinity of the enclosure. Informational Note: For further information on dustignitionproof enclosures, see Type 9 enclosure in ANSI/NEMA ,, and ANSI/UL ,. References to UL Standards in the NEC should reflect the current edition. Accept all amendments to the publication dates of the referenced documents, but do not accept the deletion of "1203" in Informational Note 2 of 500.2(1). The panel notes that the submitter accidentally deleted the document number. Affirmative: 13 Negative: 2 SIMMONS, J.: The National Electrical Code Style Manual, 2011 edition, in Chapter 4 References and Extracts, Section 4.2 References to Other Standards, states that product standards shall be in an informative annex. Each of the 2

3 changes reflected in this proposal updates a reference to a product standard. The Style Manual, as I read it, prohibits standards from being referenced in informational notes. The notes should be deleted and not updated. There are numerous references to product standards located in informational notes throughout the NEC. Deletion of these references would help to eliminate clutter throughout the code book. Since these references appear in articles from more than one Technical Committee, clean up would be best served by a multi-panel task group assigned by the TCC. The proliferation of Information Notes throughout the NEC is, in many cases in conflicts with the National Electrical Code, 2011 edition, Article 90 - Introduction, 90.1 (C) Intention. This code is not intended as a design specification or an instructional manual for untrained persons. Including informational notes beyond Informative Annex A Product Safety Standards is allowing the National Electrical Code to become a design specification manual and an instructional manual. The use of unenforceable informational notes for product standards beyond their reference in Informative Annex A creates ambiguity in the document. Finally, the National Electrical Code Style Manual, 2011 Edition, Chapter 3 Editorial Guidelines, Informational Notes, states that if an informational note is needed to explain the text of the code, consideration should be given to rewriting the text of the code to make the rule clear. If a standard contains design and/or installation information that is needed for the practical safeguarding of persons and property from hazards arising from the use of electricity, then that information should be placed in code language where it is enforceable. WECHSLER, D.: Action should have been to reject. The proposal merely reflects a date change and lacks technical substation for this change. Code making panels need to have proper information upon which to make an informed decision of the continued applicability of the document to the Code process and therefore need to have an understanding of the document changes. As indicated in log , changes were made to the energy requirements for intrinsic safety which had nothing to do with a safety issue; just a business decision to harmonize. Perhaps if a full disclosure NFPA process had been followed, agreeing to the document change might not be supported by the Code panel. Lastly, it appears that of the Regulations Governing Committee Projects requires product standards contained in informational notes to have revision dates. This makes sense if these product standards reflect agreement by the CMP to use the defined products in hazardous classified locations. Therefore by implication the CMP endorses the product standard. However, adding a product standard reference or making changes to a formerly recognized product standard should then follow the NFPA NEC proposal submission process and provide clear justification for the product standard addition/ change. 3

4 14-4 Log #1611 NEC-P14 James F. Williams, Fairmont, WV That portion of a property where liquids are received by tank vessel, pipelines, tank car, or tank vehicle and are stored or blended in bulk for the purpose of distributing such liquids by tank vessel, pipeline, tank car, tank vehicle, portable tank, or container. [ ] Informational Note: For further information, see NFPA ,. That portion of a property where liquids are received by tank vessel, pipelines, tank car, or tank vehicle and are stored or blended in bulk for the purpose of distributing such liquids by tank vessel, pipeline, tank car, tank vehicle, portable tank, or container. [ ] Informational Note: For further information, see NFPA ,. The defined term is referenced in several articles of the NEC:,,,,, & In general, Article 100 shall contain definitions of terms that appear in two or more other articles of the. The Tables cited in the submitter s substantiation contain references to Chapter 5 articles. The term bulk plant appears only in Article 515. The present location of the definition is correct. SIMMONS, J.: I voted to reject these items and I agree with the panel substantiation; however I feel there is a larger problem with the insertion of definitions into the NEC. The 2011 National Electrical Code Style Manual in Section states: In general, Article 100 shall contain definitions of terms that appear in two or more other articles of the NEC. The statement uses a possibly unenforceable phrase (in general) with the mandatory word shall. As a result, there is some inconsistency in the placement of definitions throughout the Code. A CMP-14 task group was formed to look at the definitions in Articles The group found that the definitions which appeared in more than one of the articles in needed to remain where they were and that they fell under the in general rule of Section The consensus feeling was that the definitions found in Articles are specific to the special locations covered in those articles and that relocation to Article 100, to be mixed with the general definitions found there, could create confusion and misapplication. I would like to note, however, that confusion with the definitions is a global issue which would need a multi-panel task group assigned by the TCC to address. For example, the definition of portable equipment is found in five Articles (Sections 513.2, 520.2, 530.2, and 680.2). There is some inconsistency in the definition provided in some of the sections. This is a case where the inconsistency can cause confusion. The rule(s) for the placement of definitions in the NEC should be reviewed and changes made to provide for consistency. Any changes should however take into consideration the need to segregate definitions that apply to specialized installations, such as hazardous (classified) locations in an area of the NEC that will insure the reader understands the definition's association with the specific application. If a determination was made to place all definitions into Article 100, I would suggest a new Part III Hazardous Location and include all definitions associated with Articles in the new part which could be under the jurisdiction of CMP-14. 4

5 14-5 Log #1609 NEC-P14 James F. Williams, Fairmont, WV Equipment with electrical components suitable to be moved only with mechanical aids or is provided with wheels for movement by person(s) or powered devices. Equipment with electrical components suitable to be moved by a single person without mechanical aids Equipment with electrical components suitable to be moved only with mechanical aids or is provided with wheels for movement by person(s) or powered devices. Equipment with electrical components suitable to be moved by a single person without mechanical aids The defined term is referenced in several articles of the NEC:,,,,,,,,,,, (3),,,,,,, (2),, 513.2, & 513.,,, (8),,,,,, (1), (5),,, (6),,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, & In general, Article 100 shall contain definitions of terms that appear in two or more other articles of the. The submitter did not provide substantiation to support the correctness of the proposed definitions. This is not in accordance with 4.3.3(d) of the Regulations Governing Committee Projects. Panel 14 also notes that portable and movable vary from product to product, and are defined in the various product standards. SIMMONS, J.: I voted to reject these items and I agree with the panel substantiation; however I feel there is a larger problem with the insertion of definitions into the NEC. The 2011 National Electrical Code Style Manual in Section states: In general, Article 100 shall contain definitions of terms that appear in two or more other articles of the NEC. The statement uses a possibly unenforceable phrase (in general) with the mandatory word shall. As a result, there is some inconsistency in the placement of definitions throughout the Code. A CMP-14 task group was formed to look at the definitions in Articles The group found that the definitions which appeared in more than one of the articles in needed to remain where they were and that they fell under the in general rule of Section The consensus feeling was that the definitions found in Articles are specific to the special locations covered in those articles and that relocation to Article 100, to be mixed with the general definitions found there, could create confusion and misapplication. I would like to note, however, that confusion with the definitions is a global issue which would need a multi-panel task group assigned by the TCC to address. For example, the definition of portable equipment is found in five Articles (Sections 513.2, 520.2, 530.2, and 680.2). There is some inconsistency in the definition provided in some of the sections. This is a case where the inconsistency can cause confusion. The rule(s) for the placement of definitions in the NEC should be reviewed and changes made to provide for consistency. Any changes should however take into consideration the need to segregate definitions that apply to specialized installations, such as hazardous (classified) locations in an area of the NEC that will insure the reader understands the definition's association with the specific application. If a determination was made to place all definitions into Article 100, I would suggest a new Part III Hazardous Location and include all definitions associated with Articles in the new part which could be under the jurisdiction of CMP-14. 5

6 14-6 Log #1610 NEC-P14 James F. Williams, Fairmont, WV That portion of a property where motor fuels are stored and dispensed from fixed equipment into the fuel tanks of motor vehicles or marine craft or into approved containers, including all equipment used in connection therewith. [ ] Informational Note: Refer to Articles 510 and 511 with respect to electrical wiring and equipment for other areas used as lubritoriums, service rooms, repair rooms, offices, salesrooms, compressor rooms, and similar locations. That portion of a property where motor fuels are stored and dispensed from fixed equipment into the fuel tanks of motor vehicles or marine craft or into approved containers, including all equipment used in connection therewith. [ ] Informational Note: Refer to Articles 510 and 511 with respect to electrical wiring and equipment for other areas used as lubritoriums, service rooms, repair rooms, offices, salesrooms, compressor rooms, and similar locations. The defined term is referenced in several articles of the NEC:,,,,,,,,,, & In general, Article 100 shall contain definitions of terms that appear in two or more other articles of the. The Tables cited in the submitter s substantiation contain references to Chapter 5 articles. The term motor fuel dispensing facility appears only in Article 514. The present location of the definition is correct. SIMMONS, J.: I voted to reject these items and I agree with the panel substantiation; however I feel there is a larger problem with the insertion of definitions into the NEC. The 2011 National Electrical Code Style Manual in Section states: In general, Article 100 shall contain definitions of terms that appear in two or more other articles of the NEC. The statement uses a possibly unenforceable phrase (in general) with the mandatory word shall. As a result, there is some inconsistency in the placement of definitions throughout the Code. A CMP-14 task group was formed to look at the definitions in Articles The group found that the definitions which appeared in more than one of the articles in needed to remain where they were and that they fell under the in general rule of Section The consensus feeling was that the definitions found in Articles are specific to the special locations covered in those articles and that relocation to Article 100, to be mixed with the general definitions found there, could create confusion and misapplication. I would like to note, however, that confusion with the definitions is a global issue which would need a multi-panel task group assigned by the TCC to address. For example, the definition of portable equipment is found in five Articles (Sections 513.2, 520.2, 530.2, and 680.2). There is some inconsistency in the definition provided in some of the sections. This is a case where the inconsistency can cause confusion. The rule(s) for the placement of definitions in the NEC should be reviewed and changes made to provide for consistency. Any changes should however take into consideration the need to segregate definitions that apply to specialized installations, such as hazardous (classified) locations in an area of the NEC that will insure the reader understands the definition's association with the specific application. If a determination was made to place all definitions into Article 100, I would suggest a new Part III Hazardous Location and include all definitions associated with Articles in the new part which could be under the jurisdiction of CMP-14. 6

7 14-7 Log #2894 NEC-P14 James F. Williams, Fairmont, WV Equipment with electrical components intended to be moved from one place to another. Equipment with electrical components suitable to be moved by a single person without mechanical aids. The defined term is referenced in several articles of the NEC: 100 I Electric Sign, 110, 210, 250, 368, 400, 430, 490, 500, 501, 505, 511, 513, 514, 515, 516, 517, 518, 520, 525, 530, 545, 600, 640, 668, 680 It is defined in 513.2, 520.2, 530.2, 640.2, & Suggest that a single definition in 100 I is better. In general, Article 100 shall contain definitions of terms that appear in two or more other articles of the. The submitter did not provide substantiation to support the correctness of the proposed definition. This is not in accordance with 4.3.3(d) of the Regulations Governing Committee Projects. Panel 14 also notes that the meaning of portable varies from Article to Article. The panel notes that the proposed change in the definition would have unintended and unsubstantiated changes to the application of portable equipment in aircraft hangars. SIMMONS, J.: I voted to reject these items and I agree with the panel substantiation; however I feel there is a larger problem with the insertion of definitions into the NEC. The 2011 National Electrical Code Style Manual in Section states: In general, Article 100 shall contain definitions of terms that appear in two or more other articles of the NEC. The statement uses a possibly unenforceable phrase (in general) with the mandatory word shall. As a result, there is some inconsistency in the placement of definitions throughout the Code. A CMP-14 task group was formed to look at the definitions in Articles The group found that the definitions which appeared in more than one of the articles in needed to remain where they were and that they fell under the in general rule of Section The consensus feeling was that the definitions found in Articles are specific to the special locations covered in those articles and that relocation to Article 100, to be mixed with the general definitions found there, could create confusion and misapplication. I would like to note, however, that confusion with the definitions is a global issue which would need a multi-panel task group assigned by the TCC to address. For example, the definition of portable equipment is found in five Articles (Sections 513.2, 520.2, 530.2, and 680.2). There is some inconsistency in the definition provided in some of the sections. This is a case where the inconsistency can cause confusion. The rule(s) for the placement of definitions in the NEC should be reviewed and changes made to provide for consistency. Any changes should however take into consideration the need to segregate definitions that apply to specialized installations, such as hazardous (classified) locations in an area of the NEC that will insure the reader understands the definition's association with the specific application. If a determination was made to place all definitions into Article 100, I would suggest a new Part III Hazardous Location and include all definitions associated with Articles in the new part which could be under the jurisdiction of CMP-14. 7

8 14-8 Log #1612 NEC-P14 James F. Williams, Fairmont, WV An enclosure or insert within a larger room used for spray/coating/dipping applications. A spray booth may be fully enclosed or have open front or face and may include separate conveyor entrance and exit. The spray booth is provided with a dedicated ventilation exhaust but may draw supply air from the larger room or have a dedicated air supply. An enclosure or insert within a larger room used for spray/coating/dipping applications. A spray booth may be fully enclosed or have open front or face and may include separate conveyor entrance and exit. The spray booth is provided with a dedicated ventilation exhaust but may draw supply air from the larger room or have a dedicated air supply. The defined term is referenced in several articles of the NEC: (3)(2),, & In general, Article 100 shall contain definitions of terms that appear in two or more other articles of the. The citation of 500.5(B)(3) by the submitter in the substantiation is an Informational Note, not in the Code text. This does not justify moving the definition from Article 516 to Article 100, as Article 516 is the only Article containing provisions for spray booths. SIMMONS, J.: I voted to reject these items and I agree with the panel substantiation; however I feel there is a larger problem with the insertion of definitions into the NEC. The 2011 National Electrical Code Style Manual in Section states: In general, Article 100 shall contain definitions of terms that appear in two or more other articles of the NEC. The statement uses a possibly unenforceable phrase (in general) with the mandatory word shall. As a result, there is some inconsistency in the placement of definitions throughout the Code. A CMP-14 task group was formed to look at the definitions in Articles The group found that the definitions which appeared in more than one of the articles in needed to remain where they were and that they fell under the in general rule of Section The consensus feeling was that the definitions found in Articles are specific to the special locations covered in those articles and that relocation to Article 100, to be mixed with the general definitions found there, could create confusion and misapplication. I would like to note, however, that confusion with the definitions is a global issue which would need a multi-panel task group assigned by the TCC to address. For example, the definition of portable equipment is found in five Articles (Sections 513.2, 520.2, 530.2, and 680.2). There is some inconsistency in the definition provided in some of the sections. This is a case where the inconsistency can cause confusion. The rule(s) for the placement of definitions in the NEC should be reviewed and changes made to provide for consistency. Any changes should however take into consideration the need to segregate definitions that apply to specialized installations, such as hazardous (classified) locations in an area of the NEC that will insure the reader understands the definition's association with the specific application. If a determination was made to place all definitions into Article 100, I would suggest a new Part III Hazardous Location and include all definitions associated with Articles in the new part which could be under the jurisdiction of CMP-14. 8

9 14-9 Log #1999 NEC-P14 Eliana Brazda, ISA Add new text to read as follows: Electromagnetic radiation at wavelengths in vacuum between the region of transition to X-rays and the region of transition to radio waves, that is approximately between 1 nm and 1,000 ìm. Informational Note: For additional information on types of protection that can be applied to minimize the risk of ignition in explosive gas atmospheres from optical radiation in the wavelength range from 380 nm to 10 µm, see ANSI/ISA TR , Type of protection to minimize the risk of ignition in explosive gas atmospheres from optical radiation where visible or infrared radiation is incapable of producing sufficient energy under normal or specified fault conditions to ignite a specific hazardous atmospheric mixture. Informational Note: See ANSI/ISA TR , Type of protection to minimize the risk of ignition in explosive gas atmospheres from optical radiation where radiation is confined inside optical fibre or other transmission medium under normal constructions or constructions with additional mechanical protection based on the assumption that there is no escape of radiation from the confinement. Informational Note: See ANSI/ISA TR , Type of protection to minimize the risk of ignition in explosive gas atmospheres from optical radiation where radiation is confined inside protected or unprotected optical fibre or other transmission medium with interlock cut-off provided to reliably reduce the unconfined beam strength to safe levels within a specified time. Informational Note: See ANSI/ISA TR , Optical fibre cable protected from releasing optical radiation into the atmosphere during normal operating conditions and foreseeable malfunctions by additional armouring, conduit, cable tray or raceway. Informational Note: See ANSI/ISA TR , The 2011 edition of the NEC does not address the potential for optical radiation to cause ignition in an explosive atmosphere. It does address optical fiber cables, but not from the perspective of the potential to cause ignition. ANSI/ISA-TR ,, contains published US national requirements that address the potential risk of ignition associated with optical radiation in Division classified areas. This ANSI/ISA standard is aligned with harmonized with ANSI/ISA ( ),, and IEC/EN :2006,, for Zone classified areas. ANSI/ISA-TR defines three types of protection that can be applied to address the potential for optical radiation to cause ignition in potentially explosive atmospheres. These types of protection are: 1) inherently safe optical radiation; 2) protected optical radiation; and 3) optical system with interlock. This proposal introduces these types of protection, along with the general term optical radiation and one of the more common applications of optical radiation in explosive atmospheres, protected optical fiber cable. Additional proposals are being submitted to introduce related, supporting text under and It should be noted that the sources of the optical radiation are electrical equipment. Therefore this proposal is necessary for inclusion in the NEC. There is no need to define terms that are not used in the Code. Affirmative: 14 Negative: 1 9

10 MASSEY, L.: The current NEC does not address the potential for optical radiation to cause ignition in an explosive atmosphere. ANSI/ISA-TR defines types of protection that can be applied to address the potential for optical radiation to cause ignition in potentially explosive atmospheres. 10

11 14-10 Log #2007 NEC-P14 Eliana Brazda, ISA Dusttight Informational Note: ANSI/ISA , ANSI/ISA , Electrical and Electronic Equipment: ISA-RP , ANSI/ISA ,. Hermetically Sealed Informational Note: ANSI/ISA , ANSI/ISA , Nonincendive Circuit Informational Note: ANSI/ISA , ANSI/ISA , Nonincendive Component Informational Note: ANSI/ISA , ANSI/ISA , Nonincendive Equipment Informational Note: ANSI/ISA ANSI/ISA , Nonincendive Field Wiring Apparatus Informational Note: ANSI/ISA , ANSI/ISA , Remove the ISA standards date of publication to allow application of all appropriate versions. Accept the changes proposed by the submitter, but include the appropriate publication dates of The two references will read: ANSI/ISA , and ANSI/ISA , Paragraph of the Regulations Governing Committee Projects requires dated references to Standards. The current publication dates for ISA and are Affirmative: 13 Negative: 2 SIMMONS, J.: The intent of this proposal is to update the standard date and title of the existing informational note. My negative vote on this is based on my feeling that the informational note needs to be deleted and not updated. Section has seventeen definitions. Eleven of these definitions have informational notes, of which ten reference other standards. One of the standards is referenced in five of the informational notes. I then look at 500.4(B) Reference 11

12 Standards and I see five more informational notes referencing other standards. We have to use informational notes to reference the standards or they would become Code rules. Pages 368 and 369 of the 2011 NEC (softback) have approximately 45% of the print area covered with unenforceable information. The current tendency to proliferate the use of informational notes seems to be in conflicts with the National Electrical Code, 2011 edition, Article 90 - Introduction, 90.1 (C) Intention. This code is not intended as a design specification or an instructional manual for untrained persons. In my opinion, the majority of users will never look at the referenced standards nor will they need them to complete a safe installation; those who will already know where they are. It is my belief that we can improve the readability and usability of the NEC and still provide the user with the standards references provided in these informational notes by including the references in Informational Annex A. The Informational Annex A could be reorganized into a numbered list and sections such as 500.4(B) Reference Standards could simply state See Informational Annex A. List item numbers could be included, if deemed necessary by the technical committee. It is important to guide the Code user to other references that will provide the information needed to insure that final product provides a safe design and installation. In doing so, we must also remember the safe design and installation of an electrical project requires a Code document that the designer and installer can easily read and understand. WECHSLER, D.: Action should have been to reject. The proposal merely reflects a date change and lacks technical substation for this change. Code making panels need to have proper information upon which to make an informed decision of the continued applicability of the document to the Code process and therefore need to have an understanding of the document changes. As indicated in log , changes were made to the energy requirements for intrinsic safety which had nothing to do with a safety issue; just a business decision to harmonize. Perhaps if a full disclosure NFPA process had been followed, agreeing to the document change might not be supported by the Code panel. Lastly, it appears that of the Regulations Governing Committee Projects requires product standards contained in informational notes to have revision dates. This makes sense if these product standards reflect agreement by the CMP to use the defined products in hazardous classified locations. Therefore by implication the CMP endorses the product standard. However, adding a product standard reference or making changes to a formerly recognized product standard should then follow the NFPA NEC proposal submission process and provide clear justification for the product standard addition/ change. 12

13 14-11 Log #1219 NEC-P14 Marcelo M. Hirschler, GBH International Apparatus in which the circuits are not necessarily nonincendive themselves but that affect the energy in nonincendive field wiring circuits and are relied upon to maintain nonincendive energy levels. Associated nonincendive field wiring apparatus may be either of the following: (1) Electrical apparatus that has an alternative type of protection for use in the appropriate hazardous (classified) location (2) Electrical apparatus not so protected that shall not be used in a hazardous (classified) location Associated nonincendive field wiring apparatus has designated associated nonincendive field wiring apparatus connections for nonincendive field wiring apparatus and may also have connections for other electrical apparatus. : Associated nonincendive field wiring apparatus may be either of the following: (1) Electrical apparatus that has an alternative type of protection for use in the appropriate hazardous (classified) location (2) Electrical apparatus not so protected that shall not be used in a hazardous (classified) location The NFPA Manual of Style requires definitions to be in single sentences. The information provided in the subsequent sentences is not really a part of the definition; it is further information that is best placed in an informational note. Paragraph of the NFPA Manual of Style does not require definitions in the form of a single sentence; it requires definitions in the form of a single paragraph unit. The NEC Style Manual does not modify this a Log #CP1411 NEC-P14 Code-Making Panel 14, In replace the current definition of Combustible Dust with the following: Combustible Dust. Dust particles of 500 microns or smaller (material passing a U.S. No. 35 Standard Sieve as defined in ASTM E 11, Standard Specification for Wire Cloth and Sieves for Testing Purposes) are considered to present a dust fire or dust explosion hazard unless determined otherwise. (See ASTM E 1226 or ISO 6184/1). [499:3.3.3] revised. Definition is extracted from NFPA 499 and the definition in the 2012 Edition of NFPA 499 has been Affirmative: 9 Negative: 6 CADD, J.: NFPA Standard 499 from which the extracted definition is being used is not published yet. GOODMAN, M.: The referenced standard NFPA has not been published. JONES, R.: NFPA Edition has not been published. KUCZKA, J.: Although we agree with the new definition, the 2012 edition of the referenced document has not yet been published. MASSEY, L.: Referenced standard, NFPA 499:2012 is not yet published. NEAGLE, J.: The document referenced in the substantiation, NFPA has not been published. 13

14 14-11b Log #CP1402 NEC-P14 Code-Making Panel 14, Add a new definition to 500.2, 505.2, and to read: Cord Connector. A fitting intended to terminate a cord to a box or similar device and reduce the strain at points of termination and may include an explosionproof, a dust ignition proof, or a flameproof seal. The existing term "cord connector" has different meanings in other places, which has caused confusion. The inclusion of this definition in these three articles makes it clear as to the meaning of the term as a mechanical device, not as an electrical device, and is based on the product standard ANSI/UL 514B. Affirmative: 12 Negative: 3 GOODMAN, M.: The term cord connector is not the appropriate term for the intent. The item is a fitting and the descriptive term cord fitting would be more appropriate. MCBRIDE, W.: The term cord connector is used in other places in the NEC as a wiring device such as in (A) where it permits a "cord connector" to be considered a receptacle outlet. Section defines a cord connector as a device for establishing a connection. The term fitting is commonly used in the NEC and product standards related to flexible cords products that are attached to enclosures. Section 400.7(B) uses the term cord connector body as device used to energize an attachment plug. The term "cord fitting", should be used in sections (B)(4), (4), (4), (5), (5) and anywhere else the term is used to describe the fitting. As presently used in these articles the term cord connector is confusing whether the term is defined differently (for no good reason) or not. The term "cord connector" is commonly used in the field to describe a wiring device that is connected to a cord. The term "fitting" is used in many other NEC sections to describe the product used to secure a cord to an enclosure. Users of Chapter 5 are not exempt from the requirements in Chapters 1 through 4, chapter 5 requirements can supplement or modify the general rules but creating using the same term to define different items should not be done and will create confusion and likely misinterpretation of the associated requirements. WECHSLER, D.: The panel action should have been to reject. If a change was going to be made, a better term selected might have been 'cord fitting' and not 'cord connector'. The term 'cord connector' is not appropriate in this case and a different term that includes the word "fitting" should be used as part of the term, not to describe something different. It is the product standard that is in need of change, not the NEC. ANSI/UL 514B is not limited for use in hazardous (classified) areas. The term fitting is widely used in UL product standards to refer to these and other types of products that are used to secure wiring methods and cords to equipment. The actual title of UL 514B uses the term fittings, not connectors "Conduit, Tubing, and Cable Fittings".Section 1.2 of UL 514B uses the phrase "fittings for flexible cord" Interestingly 1.4 states "These requirements do not cover FITTINGS intended for use in hazardous locations as defined in the National Electrical Code, ANSI/NFPA 70, the Canadian Electrical Code (CEC), Part I, CSA C22.1, and the Standard for Electrical Installations, NOM-001-SEDE." The term cord connector is used in other places in the NEC as a wiring device such as in (A) where it permits a "cord connector" to be considered a receptacle outlet. Section defines a cord connector as a device for establishing a connection. The term fitting is commonly used in the NEC and product standards related to flexible cords products that are attached to enclosures. Section 400.7(B) uses the term cord connector body as device used to energize an attachment plug. The term "cord fitting", flexible cord fitting" or something similar should be used in sections (B)(4), (4), (4), (5), (5) and anywhere else the term is used to describe the fitting. As presently used in these articles, the term cord connector is confusing whether the term is defined differently (for no good reason) or not. The term "cord connector" is commonly used in the field to describe a wiring device that is connected to a cord. Users of Chapter 5 are not exempt from the requirements in Chapters 1 through 4, chapter 5 requirements can supplement or modify the general rules but creating using the same term to define different items should not be done and will create confusion and likely misinterpretation of the associated requirements. The term "fitting" is used in many other NEC sections to describe the product used to secure a cord to an enclosure. 14

15 14-12 Log #1220 NEC-P14 Marcelo M. Hirschler, GBH International A component having contacts for making or breaking an incendive circuit and the contacting mechanism is constructed so that the component is incapable of igniting the specified flammable gas air or vapor air mixture. The housing of a nonincendive component is not intended to exclude the flammable atmosphere or contain an explosion. For further information, see ANSI/ISA , : The housing of a nonincendive component is not intended to exclude the flammable atmosphere or contain an explosion. The NFPA Manual of Style requires definitions to be in single sentences. The information provided in the subsequent sentences is not really a part of the definition; it is further information that is best placed in an informational note. Paragraph of the NFPA Manual of Style does not require definitions in the form of a single sentence; it requires definitions in the form of a single paragraph unit. The NEC Style Manual does not modify this Log #1221 NEC-P14 Marcelo M. Hirschler, GBH International Wiring that enters or leaves an equipment enclosure and, under normal operating conditions of the equipment, is not capable, due to arcing or thermal effects, of igniting the flammable gas air, vapor air, or dust air mixture. Normal operation includes opening, shorting, or grounding the field wiring. : Normal operation includes opening, shorting, or grounding the field wiring. The NFPA Manual of Style requires definitions to be in single sentences. The information provided in the subsequent sentences is not really a part of the definition; it is further information that is best placed in an informational note. Paragraph of the NFPA Manual of Style does not require definitions in the form of a single sentence; it requires definitions in the form of a single paragraph unit. The NEC Style Manual does not modify this. 15

16 14-14 Log #3186 NEC-P14 Stephen Crimaudo, American Petroleum Institute Replace "1997" date reference to ANSI/API RP500 to "2012" as indicated below. ANSIAPI RP , I, This and the companion proposals propose to update the date references to ANSI/API RP 500. The latest edition of ANSI/API RP 500 has been approved for publication and is expected to be published by API in early The 2012 edition of the referenced document has not been published yet Log #3187 NEC-P14 Stephen Crimaudo, American Petroleum Institute Replace "1997" date reference to ANSI/API RP500 to "2012" as indicated below., Informational Note No. 4: For further information on ventilation, see NFPA , and API RP This and the companion proposals propose to update the date references to ANSI/API RP 500. The latest edition of ANSI/API RP 500 has been approved for publication and is expected to be published by API in early The 2012 edition of the referenced document has not been published yet. 16

17 14-15a Log #CP1413 NEC-P14 Code-Making Panel 14, Classifications of Locations (A) Classifications of Locations. Locations shall be classified depending on the properties of the flammable gas, flammable liquid-produced vapor, combustible-liquid produced vapors, combustible dusts, or fibers/flyings that may be present, and the likelihood that a flammable or combustible concentration or quantity is present. Where pyrophoric materials are the only materials used or handled, these locations shall not be classified. Each room, section, or area shall be considered individually in determining its classification. Where pyrophoric materials are the only materials used or handled, these locations are outside the scope of this article. The language is being updated to be consistent with current language found in Section 506.5(A) and consistent with the fact that neither NFPA 497 or NFPA 499 currently address the use of pyrophoric materials Log #265 NEC-P14 Billy Breitkreutz, Fluor Corporation Add an Informational Note No. 3 to read as follows: Informational Note No. 3: Pyrophoric materials should be in containment systems designed to prevent contact between the pyrophoric material and air. The pyrophoric material might escape in very small amounts and combine with air at a level and temperature that would not cause spontaneous combustion. Ignition might be avoided if electrical equipment in the area is suitable for a classified location. Silane (SiH 4 ) is a pyrophoric gas that will not spontaneously ignite when mixed with air at a low level and temperature. Silane must be loaded into containers for transportation using a connection that might leak a very small quantity and mix with air at such a low level and temperature. Code Section 505.5(A) prohibits classification of the area. The Code does not prohibit installation of equipment suitable for a hazardous area in the non-hazardous area. The proposed change will make clear that installation of equipment suitable for a hazardous area in this non-hazardous is a recognized practice. The methods of protection identified in Articles 500, 505, and 506 do not provide a sufficient degree of protection for pyrophoric material. Pyrophoric materials are specifically excluded from the scopes of NFPA 497,., and NFPA 499, 17

18 14-17 Log #2167 NEC-P14 Marcelo M. Hirschler, GBH International ASTM D3175: new date is 2011 Standards update. This is extracted text and cannot be altered by Panel Log #3188 NEC-P14 Stephen Crimaudo, American Petroleum Institute Change "ignition temperature" to "autoignition temperature". API RP 500, API RP 505, NFPA 497 and NFPA 499 define the term "Autoignition Temperature" or (AlT). The term "ignition temperature" is often used synonymously with autoignition temperature, but sometimes incorrectly. This proposal, along with its companion proposals, attempt to promote consistency of the terms between the standards. The term "autoignition temperature" is used when referring to the material property of flammable liquids and vapors, which is consistent with how the term is used in NFPA 497. The term "ignition temperature" is used when referring to the material property of combustible dusts, which is consistent with how the term is used in NFPA Log #2689 NEC-P14 Jeremy Neagle, US Bureau of Alcohol, Tobacco, Firearms & Explosives Informational Note No. 3: Certain dusts may require additional precautions due to chemical phenomena that can result in the generation of ignitible gases. See ANSI/IEEE C ,, Section 127A, Coal Handling Areas. IEEE is the organization responsible for the development of the National Electrical Safety Code. The current edition is This document is referenced in various sections throughout the NEC as either ANSI C2 or ANSI/IEEE C2. I suggest the NEC Technical Correlating Committee review these sections (110.31, , 225.1, , , , , , 500.6, , , , , ) and update as appropriate. 18

19 14-20 Log #2000 NEC-P14 Eliana Brazda, ISA Add new text to read as follows: This protection technique shall be permitted for equipment in Class I, Division 1 or 2 locations, for which it is identified. The identified Division depends upon the number of faults applied as part of the protection technique evaluation. This protection technique shall be permitted for equipment in Class I, Division 1 or 2 locations, for which it is identified. The identified Division depends upon whether or not additional mechanical protection is provided as part of the protection technique evaluation. This protection technique shall be permitted for equipment in Class I, Division 1 or 2 locations, for which it is identified. The identified Division depends upon the confinement construction and upon the shut-down time in which the unconfined beam strength is reliably reduced to safe levels. The 2011 edition of the NEC does not address the potential for optical radiation to cause ignition in an explosive atmosphere. It does address optical fiber cables, but not from the perspective of the potential to cause ignition. ANSI/ISA-TR ,, contain published US national requirements that address the potential risk of ignition associated with optical radiation in Division classified areas. This ANSI/ISA standard is aligned with harmonized with ANSI/ISA ( ),, and IEC/EN :2006,, for Zone classified areas. ANSI/ISA-TR defines three types of protection that can be applied to address the potential for optical radiation to cause ignition in potentially explosive atmospheres. These types of protection are: 1) inherently safe optical radiation; 2) protected optical radiation; and 3) optical system with interlock. This proposal introduces these types of protection, along with the general term optical radiation and one of the more common applications of optical radiation in explosive atmospheres, protected optical fiber cable. Additional proposals are being submitted to introduce related, supporting text under and It should be noted that the sources of the optical radiation are electrical equipment. Therefore this proposal is necessary for inclusion in the NEC. The technical report referenced in the substantiation does not establish that the testing criteria provided are indicative of typical installations in hazardous (classified) locations and there is no evidence that existing equipment in use should be tested to these additional standards. Affirmative: 14 Negative: 1 MASSEY, L.: The current NEC does not address the potential for optical radiation to cause ignition in an explosive atmosphere. ANSI/ISA-TR defines types of protection that can be applied to address the potential for optical radiation to cause ignition in potentially explosive atmospheres. 19

20 14-21 Log #1171 NEC-P14 Jon D. Miller, Detector Electronics Corp. Change the text to the following : (1) Inadequate Ventilation. In a Class I, Division 1 location that is so classified due to inadequate ventilation, electrical equipment suitable for Class I, Division 2 locations shall be permitted. Combustible gas detection equipment shall be listed for Class I, Division 1, for the appropriate material group, and for the detection of the specific gas or vapor to be encountered for which it is intended. ( 2) Interior of a Building. In a building located in, or with an opening into, a Class I, Division 2 location where the interior does not contain a source of flammable gas or vapor, electrical equipment for unclassified locations shall be permitted. Combustible gas detection equipment shall be listed for Class I, Division 1 or Class I, Division 2, for the appropriate material group, and for the detection of the specific gas or vapor to be encountered for which it is intended. ( 3) Interior of a Control Panel. In the interior of a control panel containing instrumentation utilizing or measuring flammable liquids, J gases, or vapors, electrical equipment suitable for Class I, Division 2 locations shall be permitted. Combustible gas detection equipment shall be listed for Class I, Division 1, for the appropriate material group, and for the detection of the specific gas or vapor to be encountered for which it is intended. The listing of the gas detector would include the gasses or vapors for which the detector is intended (not "encountered"). A Methane gas detector encounters Nitrogen (within air), but the Methane gas detector is not listed for Nitrogen. Gas detection equipment can be intended to detect, for example, a noncombustible gas or a combustible gas other than the one to be encountered, and that would not fulfill the requirements of using gas detection as a method of protection Log #3189 NEC-P14 Stephen Crimaudo, American Petroleum Institute Change "ignition temperature" to "autoignition temperature". API RP 500, API RP 505, NFPA 497 and NFPA 499 define the term "Autoignition Temperature" or (AlT). The term "ignition temperature" is often used synonymously with autoignition temperature, but sometimes incorrectly. This proposal, along with its companion proposals, attempt to promote consistency of the terms between the standards. The term "autoignition temperature" is used when referring to the material property of flammable liquids and vapors, which is consistent with how the term is used in NFPA 497. The term "ignition temperature" is used when referring to the material property of combustible dusts, which is consistent with how the term is used in NFPA 499. The more general term "ignition temperature" is appropriate here, since this section addresses gases, vapors, dusts, and fibers/flyings. 20