SUBJECT: NFPA 70 Second Draft TC Ballot Final Results (A2016)

Transcription

1 National Fire Protection Association 1 Batterymarch Park, Quincy, MA Phone: Fax: TO: NEC Code-Making Panel 15 FROM: Kimberly Shea, Administrator, Technical Projects DATE: January 25, 2016 SUBJECT: NFPA 70 Second Draft TC Ballot Final Results (A2016) According to the final ballot results, all ballot items received the necessary affirmative votes to pass ballot. The attached report shows the number of affirmative, negative and abstaining votes as well as the explanation of the vote for each revision. To pass ballot, each revision requires: (1) a simple majority of those eligible to vote and (2) an affirmative vote of 2 /3 of ballots returned. See Sections (c) and of the Regulations Governing the Development of NFPA Standards. NEC Panel 15 Final Ballot Results - Page 1 of 62-01/28/16

2 of 3 1/25/ :10 PM Second Revision No NFPA [ Section No ] Ungrounded Control Circuits. Separately derived ac circuits and systems 50 volts or greater and 2-wire dc circuits and systems volts or greater shall be permitted to be ungrounded, provided that all the following conditions are met: (1) Continuity of control power is required for orderly shutdown. (2) Ground detectors are installed on the control system. Submitter Information Verification Submitter Full Name: CMP 15 Organization: [ Not Specified ] Street Address: City: State: Zip: Submittal Date: Tue Dec 08 16:17:08 EST 2015 Committee Statement Committee Statement: Statement from CMP 1: SR 24 addresses Panel 1 s response to PC The panel accepted the submitter s comment applicable to that section. Statement from CMP 2: CMP-2 supports consistency in moving from 50V to 60V. Statement from CMP 3: Less than 50 volts AC is normally not considered to be a shock hazard based on NFPA 70E. Less than 100 volts DC is not a shock hazard except at the ampere levels of 0.5A and higher, depending on the resistance of the body and the length of time of the connection to the body. Since current levels are not provided, a safety level of less than 50 volts DC is conservative and usually considered to be safe. Pulsating DC is not taken into account but is covered in Table 11(B) in Chapter 9 of the NEC. Statement from CMP 4: The hazards associated with 50V AC and 60V dc are in conflict with many safety standards that set limits of 60V DC and 30V ac for accessible circuits in dry locations. The existing code language with nominal 50V allows for temporary voltage variations above and below 50V. Article 706 addresses energy storage and limits specific to that application would be best addressed there. Statement from CMP 5: The submitter s substantiation is incorrect. There is no provision in Article 200 to limit these requirements to AC systems only. Each of these requirements applies to both AC and DC systems. Limiting this to AC systems only would result in no identification requirements for grounded DC conductors. NEC Panel 15 Final Ballot Results - Page 2 of 62-01/28/16

3 of 3 1/25/ :10 PM Statement from CMP 11: The current wording of and includes both AC and DC, changing this would limit it to only DC or AC. Statement from CMP 12: The Panel voted to develop SR-3319 which revised section 669.6(A) and (B) to change the not exceeding voltage to 60V. Statement from CMP 13: The Panel had one Global PC to address: PC They responded by creating SRs 3614, 3615, and 3616 on specific sections that were addressed by the comment. Statement from CMP 15: Although this code section indicates a 50 volt threshold, and this section is a requirement for both AC and DC systems, the requirement will be reworded to recognize that for a given circuit or system involved in most instances the circuit or system is rated as EITHER 50 volts AC OR 60 volts DC. Over the past decade numerous code articles have been placed into the NEC as a result of the increased resurgence of DC systems. These systems, similar to their AC counterpart, have mandated code requirements that must be met when the system voltage exceeds a certain threshold. For years the system threshold for many of the requirements has been kept at the 50 volt level. While this is appropriate for AC systems, it can create confusion to the user of the document when applied to 48 DC batteries during charging where a float voltage is common at 58 volts. The float voltage can vary significantly depending on battery chemistry, battery construction, and the actual ambient temperature. This voltage may be constant for the entire duration of the charge or can fluctuate. Some 48 volt DC systems stay above the 50 volt threshold for 99% of the time for applications such as telecommunications, UPS systems and emergency lighting. This elevated voltage may create confusion since various AHJ s might see 58 volts and mandate that a code rule must be followed since the 50 volt threshold has been increased. CMP-15 recommends to the Correlating Committee that other NEC Sections similarly affected by Global Public Comment PC 1063 be revised to correlate with the method indicated in this Second Revision to preclude rating misinterpretation. Response Message: Public Comment No NFPA [Global Input] Ballot Results This item has passed ballot 19 Eligible Voters 1 Not Returned 17 Affirmative All 0 Affirmative with Comments 0 Negative with Comments 1 Abstention Not Returned Jones, Kim NEC Panel 15 Final Ballot Results - Page 3 of 62-01/28/16

4 of 3 1/25/ :10 PM Affirmative All Beebe, Chad E. Dagenais, David A. Dozier, Matthew B. DuPriest, Joe L. Gilbert, Kenneth J. Hefter, Mitchell K. Kramer, Edwin S. Krupa, Gary J. Lipster, Stephen M. Nash, Jr., Hugh O. Porter, Kevin T. Rock, Brian E. Seabury III, James C. Shelly, Bruce D. Skinner, Michael D. Talka, Donald J. Todd, Lawrence E. Abstention Vannice, Kenneth E. Vote limited NEC Panel 15 Final Ballot Results - Page 4 of 62-01/28/16

5 of 58 1/28/2016 2:32 PM Second Revision No NFPA [ Definition: Exposed Conductive Surfaces. ] Exposed Conductive Surfaces. Those surfaces that are capable of carrying electric current and that are unprotected, uninsulated, unenclosed, or unguarded, permitting personal contact. [99:3.3.47] Informational Note: Paint, anodizing, and similar coatings are not considered suitable insulation, unless they are listed for such use. Submitter Information Verification Submitter Full Name: CMP 15 Organization: [ Not Specified ] Street Address: City: State: Zip: Submittal Date: Thu Nov 05 13:38:22 EST 2015 Committee Statement Committee Statement: The second sentence is removed from the requirement and relocated as an Informational Note, since this sentence is not mandatory text. Uninsulated was inadvertently omitted in the FD. This action addresses the concerns of the CC. Response Message: Public Comment No NFPA [Definition: Exposed Conductive Surfaces.] Ballot Results This item has passed ballot 14 Eligible Voters 0 Not Returned 14 Affirmative All 0 Affirmative with Comments 0 Negative with Comments 0 Abstention Affirmative All Beebe, Chad E. Dagenais, David A. Dozier, Matthew B. DuPriest, Joe L. NEC Panel 15 Final Ballot Results - Page 5 of 62-01/28/16

6 of 58 1/28/2016 2:32 PM Gilbert, Kenneth J. Krupa, Gary J. Lipster, Stephen M. Nash, Jr., Hugh O. Porter, Kevin T. Rock, Brian E. Seabury III, James C. Shelly, Bruce D. Talka, Donald J. Todd, Lawrence E. NEC Panel 15 Final Ballot Results - Page 6 of 62-01/28/16

7 of 58 1/28/2016 2:32 PM Second Revision No NFPA [ Definition: Patient Care Space. ] Patient Care Space. Any space of a health care facility wherein patients are intended to be examined or treated. [99: ] Informational Note No. 1: The governing body of the facility designates patient care space in accordance with the type of patient care anticipated. [ 99: ] Informational Note No. 2: Business offices, corridors, lounges, day rooms, dining rooms, or similar areas typically are not classified as patient care spaces. [ 99: A ] Basic Care (Category 3) Space. Space in which failure of equipment or a system is not likely to cause injury to the patients, staff, or visitors but can cause patient discomfort. [99: ] Informational Note: [Category 3] spaces, formerly known as basic care rooms [(spaces)], are typically where basic medical or dental care, treatment, or examinations are performed. Examples include, but are not limited to, examination or treatment rooms in clinics, medical and dental offices, nursing homes, and limited care facilities. [ 99: A ] General Care (Category 2) Space. Space in which failure of equipment or a system is likely to cause minor injury to patients, staff, or visitors. [99: ] Informational Note: [Category 2] spaces were formerly known as general care rooms [(spaces)]. Examples include, but are not limited to, inpatient bedrooms, dialysis rooms, in vitro fertilization rooms, procedural rooms, and similar rooms. [ 99: A ] Critical Care (Category 1) Space. Space in which failure of equipment or a system is likely to cause major injury or death of patients, staff, or visitors. [ 99: ] NEC Panel 15 Final Ballot Results - Page 7 of 62-01/28/16

8 of 58 1/28/2016 2:32 PM Support (Category 4) Critical Care (Category 1) Space. Space in which failure of equipment or a system is not likely to have a physical impact on patient care. [ 99: ] likely to cause major injury or death of patients, staff, or visitors. [ 99: ] Informational Note: [Category 1] spaces, formerly known as critical care rooms [(spaces)], are typically where patients are intended to be subjected to invasive procedures and connected to line-operated, patient care related appliances. Examples include, but are not limited to, special care patient rooms used for critical care, intensive care, and special care treatment rooms such as angiography laboratories, cardiac catheterization laboratories, delivery rooms, operating rooms, post-anesthesia care units, trauma rooms, and other similar rooms. [ 99: A ] Informational Note No. 1: The governing body of the facility designates patient care space in accordance with the type of patient care anticipated and with the definitions of the space classification. [ 99: ] Informationaln Note No. 2: Business offices, corridors, lounges, day rooms, dining rooms, or similar areas typically are not classified as patient care space. [ 99: A ] Informational Note No.3: Category 1 spaces, formerly known as critical care rooms (spaces), are typically where patients are intended to be subjected to invasive procedures and connected to line operated, patient care related appliances. Examples include, but are not limited to, special care patient rooms used for critical care, intensive care, and special care treatment rooms such as angiography laboratories, cardiac catheterization laboratories, delivery rooms, operating rooms, post-anesthesia care units, trauma rooms, and other similar rooms. [ 99: A ] Informational Note No. 4: Category 2 spaces were formerly known as general care rooms (spaces). Examples include, but are not limited to, inpatient bedrooms, dialysis rooms, in vitro fertilization rooms, procedural rooms, and similar rooms. [ 99: A ] Informational Note No. 5: Category 3 spaces, formerly known as basic care rooms (spaces), aretypically where basic medical or dental care, treatment, or examinations are performed. Examples include, but are not limited to, examination or treatment rooms in clinics, medical and dental offices, nursing homes, and limited care facilities. [ 99: A ] Informational Note No. 6: Category 4 spaces were formerly known as support rooms (spaces). Examples of support spaces include, but are not limited to, anesthesia work rooms, sterile supply, laboratories, morgues, waiting rooms, utility rooms, and lounges. [ 99: A ] Support (Category 4) Space. Space in which failure of equipment or a system is not likely to have a physical impact on patient care. [ 99: ] Informational Note: [Category 4] spaces were formerly known as support rooms [(spaces)]. Examples of support spaces include, but are not limited to, anesthesia work rooms, sterile supply, laboratories, morgues, waiting rooms, utility rooms, and lounges. [ 99: A ] Submitter Information Verification Submitter Full Name: CMP 15 Organization: [ Not Specified ] Street Address: City: State: Zip: Submittal Date: Thu Nov 05 13:46:39 EST 2015 Committee Statement Committee Statement: Responsive to Correlating Committee (Public Comment PC 1813), in accordance with of the National Electrical Code Style Manual and of the Manual of Style for NFPA Technical Committee Documents regarding extracted materials, the consent of the NFPA 99 Fundamentals Technical Committee, as the committee responsible for the source document, was sought and NEC Panel 15 Final Ballot Results - Page 8 of 62-01/28/16

9 of 58 1/28/2016 2:32 PM obtained to use parenthetic references between specific older and current NFPA 99 terminology during a transition to current NFPA 99 terminology in the National Electrical Code. [Ref. Minutes of NFPA Technical Committee on Fundamentals (HEA-FUN), August 13, 2015, Item 7] This written permission is documented in the attachments submitted with Public Comment PC Accordingly, the 2017 NEC will use the transitional terminology, as follows: Critical Care Space (Category 1 Space), General Care Space (Category 2 Space), Basic Care Space (Category 3 Space), and Support Space (Category 4 Space). CMP-15 intends to modify the 2020 NEC to use the transitional terminology, as follows: Category 1 Space (Critical Care Space), Category 2 Space (General Care Space), Category 3 Space (Basic Care Space), and Category 4 Space (Support Space). CMP-15 intends to modify the 2023 NEC to use NFPA 99 s terminology directly, as follows: Category 1 Space, Category 2 Space, Category 3 Space, and Category 4 Space. Relocation of the informational notes, in accordance with Public Comment PC 470, improves readability by immediately following the requirement to which each informational note applies. Although NEC Style Manual applies solely to Exceptions, Code-Making Panel 15 recommends to the Correlating Committee that similar guidelines be added to NEC Style Manual (2.4.3) for Informational Notes as well. Response Message: Public Comment No NFPA [Definition: Patient Care Space.] Public Comment No NFPA [Definition: Patient Care Space.] Public Comment No. 470-NFPA [Definition: Patient Care Space.] Ballot Results This item has passed ballot 14 Eligible Voters 0 Not Returned 13 Affirmative All 1 Affirmative with Comments 0 Negative with Comments 0 Abstention Affirmative All Dagenais, David A. Dozier, Matthew B. DuPriest, Joe L. Gilbert, Kenneth J. Krupa, Gary J. Lipster, Stephen M. Nash, Jr., Hugh O. Porter, Kevin T. Rock, Brian E. Seabury III, James C. Shelly, Bruce D. NEC Panel 15 Final Ballot Results - Page 9 of 62-01/28/16

10 of 58 1/28/2016 2:32 PM Talka, Donald J. Todd, Lawrence E. Affirmative with Comment Beebe, Chad E. I still think that the use of this language in conjunction with the category terminology is dangerous and could lead to a hazard or a liability for the installer. It will be too easy to take room names such as general surgery, general procedure room, or general care and miss apply the category level resulting in patient injury or death. NFPA 99 eliminated the room names because of the potential confusion and applied a risk category based on the risk to the patient within the room or space. To wait until 2022 to complete this change makes no sense. NEC Panel 15 Final Ballot Results - Page 10 of 62-01/28/16

11 of 58 1/28/2016 2:32 PM Second Revision No NFPA [ Section No ] Grounding of Receptacles and Fixed Electrical Equipment in Patient Care Spaces. Wiring in patient care spaces shall comply with (A) and (B). (A) Wiring Methods. All branch circuits serving patient care areas spaces shall be provided with an effective ground-fault current path by installation in a metal raceway system, or a cable having a metallic armor or sheath assembly. The metal raceway system, or metallic cable armor, or sheath assembly shall itself qualify as an equipment grounding conductor in accordance with (B) Insulated Equipment Grounding Conductor Conductors and Insulated Equipment Bonding Jumpers. (1) General. The following shall be directly connected to an insulated copper equipment grounding conductor that is green clearly identified along its entire length by green insulation and installed with the branch circuit conductors in the wiring methods as provided in (A): (1) The grounding terminals of all receptacles other than isolated ground receptacles (2) Where metal receptacle boxes are used, the performance of the connection between the receptacle grounding terminal and the metal box shall be equivalent to the performance provided by copper wire no smaller than 12 AWG. [ 99: ] Metal outlet boxes, metal device boxes, or metal enclosures (3) All non current-carrying conductive surfaces of fixed electrical equipment likely to become energized that are subject to personal contact, operating at over 100 volts Exception No. 1: An For other than isolated ground receptacles, an insulated equipment bonding jumper that directly connects to the equipment grounding conductor is permitted to connect the box and receptacle(s) to the equipment grounding conductor. Isolated ground receptacles shall be connected in accordance with Exception No. 2: Metal faceplates shall be permitted to be connected to the equipment grounding conductor by means of a metal mounting screw(s) securing the faceplate to a grounded outlet box or grounded wiring device. Exception No. 3: Luminaires more than 2.3 m (7 1 2 ft) above the floor and switches located outside of the patient care vicinity shall be permitted to be connected to an equipment grounding return path complying with (A)and or (B). (2) Sizing. Equipment grounding conductors and equipment Where metal receptacle boxes are used, the performance of the connection between the receptacle grounding terminal and the metal box shall be equivalent to the performance provided by copper wire no smaller than 12 AWG. [ 99: ] Where receptacles and fixed electrical equipment are provided with overcurrent protection rated over 20 amperes, bonding jumpers shall be sized in accordance with Equipment grounding conductors shall be sized in accordance with Submitter Information Verification Submitter Full Name: CMP 15 Organization: [ Not Specified ] Street Address: City: State: NEC Panel 15 Final Ballot Results - Page 11 of 62-01/28/16

12 of 58 1/28/2016 2:32 PM Zip: Submittal Date: Thu Nov 05 14:28:27 EST 2015 Committee Statement Committee Statement: The revision to (B)(1)(1) to exclude isolated ground receptacles is essential to correlate with (B) as modified by FR4260 and to avoid defeating the isolated grounding feature of an IG receptacle by miswiring per the reference to (B). The title of (B) is revised since requirements encompasses equipment bonding jumpers in addition to equipment grounding conductors. The NFPA 99-extracted requirements has been relocated from (B)(1)(2) to the Sizing requirement in (B)(2). The connection point requirement in revised (B)(1)(2) is no longer that sizing requirement but clarifies the distinct connection point portion of the requirement. Consequently, the term "metal receptacle boxes" in revised (B)(1)(2) is revised to be consistent with the term "metal outlet boxes" or "metal device boxes" used in the National Electrical Code NFPA 70 (e.g., "Article 314 Outlet, Device, Pull, and Junction Boxes..."). As (B)(1)(2) was revised in FR4261 and in accordance with 90.3, it was ambiguous whether (B)(1)(2) might permit equipment bonding jumpers to be sized as copper 12 AWG for 60A, 100A, and 200A receptacles rather than to be unequivocally equivalent to copper 10 AWG, 8 AWG, or 6 AWG, respectively, in accordance with the minimum sizes of The requirement is modified for clarity and usability. The grounding conductor s insulation, not the copper conductor itself, should be green. Exception No.3 is modified to clarify that either (A) or (B) may be used; it is not required to do both. Editorial: Use term patient care spaces in place of patient care areas for consistency throughout NEC Article 517 and with NFPA 99. Response Message: Public Comment No. 63-NFPA [Section No ] Public Comment No. 430-NFPA [Section No (B)(1)] Public Comment No. 847-NFPA [Section No ] Public Comment No NFPA [Section No (B)(1)] Ballot Results This item has passed ballot 14 Eligible Voters 0 Not Returned 13 Affirmative All 1 Affirmative with Comments 0 Negative with Comments 0 Abstention Affirmative All NEC Panel 15 Final Ballot Results - Page 12 of 62-01/28/16

13 of 58 1/28/2016 2:32 PM Beebe, Chad E. Dagenais, David A. Dozier, Matthew B. DuPriest, Joe L. Gilbert, Kenneth J. Krupa, Gary J. Lipster, Stephen M. Nash, Jr., Hugh O. Porter, Kevin T. Rock, Brian E. Seabury III, James C. Shelly, Bruce D. Todd, Lawrence E. Affirmative with Comment Talka, Donald J. The criteria for the sizing of the bonding between the box and receptacle is taken as an extract from NFPA 99. It basically states that the bonding must be equivalent to a number 12 conductor. This is a performance specification as would be expected in NFPA still lacks a method to determine compliance to this performance specification. NEC Panel 15 Final Ballot Results - Page 13 of 62-01/28/16

14 0 of 58 1/28/2016 2:32 PM Second Revision No NFPA [ Section No (A) ] (A) Inside of a Patient Care Vicinity. An isolated grounding receptacle shall not be installed within a patient care vicinity. [99: (B)] Submitter Information Verification Submitter Full Name: CMP 15 Organization: [ Not Specified ] Street Address: City: State: Zip: Submittal Date: Fri Nov 06 12:16:09 EST 2015 Committee Statement Committee Statement: CMP-15 adds a title to be consistent with (B). Response Message: Ballot Results This item has passed ballot 14 Eligible Voters 0 Not Returned 14 Affirmative All 0 Affirmative with Comments 0 Negative with Comments 0 Abstention Affirmative All Beebe, Chad E. Dagenais, David A. Dozier, Matthew B. DuPriest, Joe L. Gilbert, Kenneth J. Krupa, Gary J. Lipster, Stephen M. Nash, Jr., Hugh O. Porter, Kevin T. Rock, Brian E. Seabury III, James C. NEC Panel 15 Final Ballot Results - Page 14 of 62-01/28/16

15 1 of 58 1/28/2016 2:32 PM Shelly, Bruce D. Talka, Donald J. Todd, Lawrence E. NEC Panel 15 Final Ballot Results - Page 15 of 62-01/28/16

16 2 of 58 1/28/2016 2:32 PM Second Revision No NFPA [ Section No (B) ] (B) Outside of a Patient Care Vicinity. Isolated grounding ground receptacle(s) used installed in patient care spaces outside of a patient care vicinity vicinity(s) shall not defeat the purposes of the safety features of the grounding systems detailed in comply with (B)(1) and (2). (1) Isolated The grounding terminals of isolated ground receptacles installed in branch circuits for patient care spaces shall be connected to an insulated equipment grounding conductor in accordance with (D) in addition to the two equipment grounding conductor paths path required in (A) and (B). The equipment grounding conductor installed for isolated grounding connected to the grounding terminals of isolated ground receptacles in patient care areas spaces shall be clearly identified using along the equipment grounding conductor's entire length by green insulation with one or more yellow stripes along its entire length. (2) The insulated grounding conductor required in (B)(1) shall be clearly identified along its entire length by green insulation, with no yellow stripes, and shall not be connected to the grounding terminals of isolated ground receptacles but shall be connected to the box or enclosure indicated in (B) (1) (2) and to non current-carrying conductive surfaces of fixed electrical equipment indicated in (B)(1)(3). Informational Note No. 1: This type of installation is typically used where a reduction of electrical noise (electromagnetic interference) is necessary, and parallel grounding paths are to be avoided. Informational Note No. 2: Care should be taken in specifying a system containing isolated ground receptacles, because the grounding impedance is controlled only by the grounding wires and does not benefit from any conduit or building structure in parallel with the grounding path. [99:A ] Submitter Information Verification Submitter Full Name: CMP 15 Organization: [ Not Specified ] Street Address: City: State: Zip: Submittal Date: Thu Nov 05 16:35:22 EST 2015 Committee Statement Committee Statement: This revision provides necessary clarity to First Revision No NFPA (Section No ) and correlates with CMP-15 has clarified that the equipment grounding conductor path referenced in (B)(1) [green unstriped insulated conductor] shall not be incorrectly terminated to the Isolated Ground receptacle s grounding terminal. This connection is to be made to the metal box or enclosure to which the Isolated Ground receptacle s mounting means connects to the strap of the receptacle and bonds the faceplate. NEC Panel 15 Final Ballot Results - Page 16 of 62-01/28/16

17 3 of 58 1/28/2016 2:32 PM (B)(2) mandates both an insulated grounding conductor identified green with yellow stripes that is to be connected to the grounding terminal of the isolated ground receptacle and an insulated grounding conductor identified as green (without yellow striping) per NEC (B)(1)(1) methods be used for this installation. If the isolated ground conductor is connected to the metal box and the isolated ground terminal, such a connection would negate the isolated grounding of an Isolated Ground receptacle established by NEC (D). Editorial changes include: Use the term isolated ground receptacles for consistency throughout NEC and with NEC (D) as directed by the Correlating Committee. Further, the term patient care areas in NEC (B)(2) should be consistent with patient care spaces now used in Article 517. Response Message: Public Comment No. 62-NFPA [Section No (B)] Public Comment No NFPA [Section No ] Public Comment No. 746-NFPA [Section No (B)(2)] Public Comment No. 765-NFPA [Section No (B)(2)] Public Comment No. 848-NFPA [Section No (B)] Ballot Results This item has passed ballot 14 Eligible Voters 0 Not Returned 14 Affirmative All 0 Affirmative with Comments 0 Negative with Comments 0 Abstention Affirmative All Beebe, Chad E. Dagenais, David A. Dozier, Matthew B. DuPriest, Joe L. Gilbert, Kenneth J. Krupa, Gary J. Lipster, Stephen M. Nash, Jr., Hugh O. Porter, Kevin T. Rock, Brian E. Seabury III, James C. Shelly, Bruce D. Talka, Donald J. NEC Panel 15 Final Ballot Results - Page 17 of 62-01/28/16

18 4 of 58 1/28/2016 2:32 PM Todd, Lawrence E. NEC Panel 15 Final Ballot Results - Page 18 of 62-01/28/16

19 5 of 58 1/28/2016 2:32 PM Second Revision No NFPA [ Section No ] Sources of Power. (A) Two Independent Power Sources. Essential electrical systems shall have a minimum of the following two independent sources of power: a normal source generally supplying the entire electrical system and one or more alternate source(s) for use when the normal source is interrupted. [99: ] (B) Types of Power Sources. (1) Generating Units. Where the normal source consists of generating units on the premises, the alternate source shall be either another generating set or an external utility service. [99: ] (2) Fuel Cell Systems. Fuel cell systems shall be permitted to serve as the alternate source for all or part of an essential electrical system, provided the following conditions apply: (1) Installation shall comply with NFPA 853, Standard for Installation of Stationary Fuel Cell Power Systems. [ 99: ] (2) N + 1 units shall be provided where N units have sufficient capacity to supply the demand loads of the portion of the system served. [ 99: ] (3) System shall be able to assume loads within 10 seconds of loss of normal power source. [ 99: ] (4) System shall have a continuing source of fuel supply, together with sufficient on-site fuel storage for the essential system type. [ 99: (5) A connection shall be provided for a portable diesel generator to supply life safety and critical portions of the distribution system. [99: (1) through (5) ] (6) Fuel cell systems shall be listed for emergency system use. (C) Location of Essential Electrical System Components. Essential electrical system components shall be located to minimize interruptions caused by natural forces common to the area (e.g., storms, floods, earthquakes, or hazards created by adjoining structures or activities). Installations of electrical services shall be located to reduce possible interruption of normal electrical services resulting from similar causes as well as possible disruption of normal electrical service due to internal wiring and equipment failures. Feeders shall be located to provide physical separation of the feeders of the alternate source and from the feeders of the normal electrical source to prevent possible simultaneous interruption. Informational Note: Facilities in which the normal source of power is supplied by two or more separate central station-fed services experience greater than normal electrical service reliability than those with only a single feed. Such a dual source of normal power consists of two or more electrical services fed from separate generator sets or a utility distribution network that has multiple power input sources and is arranged to provide mechanical and electrical separation so that a fault between the facility and the generating sources is not likely to cause an interruption of more than one of the facility service feeders. Submitter Information Verification Submitter Full Name: CMP 15 Organization: [ Not Specified ] Street Address: City: NEC Panel 15 Final Ballot Results - Page 19 of 62-01/28/16

20 6 of 58 1/28/2016 2:32 PM State: Zip: Submittal Date: Thu Nov 05 17:59:44 EST 2015 Committee Statement Committee Statement: The NFPA 99 requirement for installation compliance with NFPA 853 was inadvertently omitted and (A) is revised accordingly. The requirement for fuel cell systems being listed for emergency use is specifically retained. This requirement is clearly outside of the cited extracted text for NFPA , and the same requirement has been explicitly added to per First Revision FR 19 of NFPA , where wording has been revised accordingly. Furthermore, this is a requirement pertaining to the installation of equipment. In accordance with Standards Council Decision SD-11-7, NFPA 70 Code-Making Panel 15 has authority to set installation requirements of equipment in health care facilities. This action meets the intent of the CC PC-1817 relative to or more. Response Message: Public Comment No NFPA [Section No ] Public Comment No NFPA [Section No [Excluding any Sub-Sections]] Ballot Results This item has passed ballot 14 Eligible Voters 0 Not Returned 12 Affirmative All 0 Affirmative with Comments 2 Negative with Comments 0 Abstention Affirmative All Dozier, Matthew B. DuPriest, Joe L. Gilbert, Kenneth J. Krupa, Gary J. Lipster, Stephen M. Nash, Jr., Hugh O. Porter, Kevin T. Rock, Brian E. Seabury III, James C. Shelly, Bruce D. Talka, Donald J. Todd, Lawrence E. NEC Panel 15 Final Ballot Results - Page 20 of 62-01/28/16

21 7 of 58 1/28/2016 2:32 PM Negative with Comment Beebe, Chad E. The change in item (C) needs to be changed back to the previous edition language. The previous edition required facilities to consider locating equipment to minimize outages. This section would require the essential electrical system to be located to minimize outages - but this decision shouldn't be made in without regard to other systems and factors. That is why this performance issue is taken care of in NFPA 99 where it requires facilities to do a hazard vulnerably assessment (HVA) The HVA looks at vulnerabilities of all of the systems and the likely types of outages. A simple statement as in (C) can't address the complex considerations that need to go into the location of backup systems and utilities. Dagenais, David A. By adding the word shall in section (C) it will make the decision of the placement of the all essential electrical system components completely up to the interpretation of the AHJ. This is a good suggestion but should not be required language. NEC Panel 15 Final Ballot Results - Page 21 of 62-01/28/16

22 8 of 58 1/28/2016 2:32 PM Second Revision No NFPA [ Section No (B) [Excluding any Sub-Sections] ] The number of transfer switches to be used shall be based on reliabilityand design. Each branch of the essential electrical system shall have one or more transfer switches. Transfer equipment shall meet the requirements in 700.5(A), (B), and (C) where commercially available. One transfer switch and downstream distribution system shall be permitted to serve one or more branches in a facility with a maximum demand on the essential electrical system of 150 kva. Informational Note No. 1: See NFPA , Health Care Facilities Code, , Transfer Switches; , Automatic Transfer Switch Features; , Nonautomatic Transfer Switch Features; and , Nonautomatic Transfer Device Features. Informational Note No. 2: See Informational Note Figure (a). Informational Note No. 3: See Informational Note Figure (b). Informational Note Figure (a) Hospital Minimum Requirement (greater than 150 kva) for Transfer Switch Arrangement. Informational Note Figure (b) Hospital Minimum Requirement (150 kva or less) for Transfer Switch Arrangement. Submitter Information Verification NEC Panel 15 Final Ballot Results - Page 22 of 62-01/28/16

23 9 of 58 1/28/2016 2:32 PM Submitter Full Name: CMP 15 Organization: [ Not Specified ] Street Address: City: State: Zip: Submittal Date: Thu Nov 05 16:56:55 EST 2015 Committee Statement Committee Statement: Response Message: NFPA 99: states that NFPA 70, Article 700 shall only apply to the life safety branch. CMP-15 deletes the last sentence added in the FR, ( Only Transfer equipment on the life safety branch shall meet the requirements in 700.5(A), (B), and (C) where commercially available. ) as it not consistent with the requirements of NFPA 99. Public Comment No NFPA [Section No (B) [Excluding any Sub-Sections]] Ballot Results This item has passed ballot 14 Eligible Voters 0 Not Returned 13 Affirmative All 0 Affirmative with Comments 1 Negative with Comments 0 Abstention Affirmative All Beebe, Chad E. Dagenais, David A. Dozier, Matthew B. DuPriest, Joe L. Gilbert, Kenneth J. Krupa, Gary J. Nash, Jr., Hugh O. Porter, Kevin T. Rock, Brian E. Seabury III, James C. Shelly, Bruce D. Talka, Donald J. Todd, Lawrence E. Negative with Comment Lipster, Stephen M. NEC Panel 15 Final Ballot Results - Page 23 of 62-01/28/16

24 0 of 58 1/28/2016 2:32 PM The Code Making Panel's premise that this panel has no jurisdiction when considering the listing requirements of transfer equipment in health care facilities is flawed, and contradicts the panel statement found in SR 4225 which states"...code-making Panel 15 has authority to set installation requirements of equipment in health care facilities." NEC Panel 15 Final Ballot Results - Page 24 of 62-01/28/16

25 1 of 58 1/28/2016 2:32 PM Second Revision No NFPA [ Section No (A) ] (A) General. Essential electrical systems for nursing homes and limited care facilities shall be divided into the following two branch circuits branches, the life safety branch and the equipment branch. [99:A ] The division between the branches shall occur at transfer switches where more than one transfer switch is required. Informational Note No. 1: Essential electrical systems are comprised of two separate branches capable of supplying a limited amount of lighting and power service, which is considered essential for the protection of life and safety and effective operation of the institution during the time normal electrical service is interrupted for any reason. Informational Note No. 2: For more information see NFPA , Health Care Facilities Code. [ 99: A ] Submitter Information Verification Submitter Full Name: CMP 15 Organization: [ Not Specified ] Street Address: City: State: Zip: Submittal Date: Thu Nov 05 17:40:14 EST 2015 Committee Statement Committee Statement: Response Message: This revision correlates with the requirement in NFPA 99. CMP-15 editorially corrects the extract references to NFPA 99. Public Comment No NFPA [Section No (A)] Ballot Results This item has passed ballot 14 Eligible Voters 0 Not Returned 14 Affirmative All 0 Affirmative with Comments 0 Negative with Comments 0 Abstention Affirmative All Beebe, Chad E. NEC Panel 15 Final Ballot Results - Page 25 of 62-01/28/16

26 2 of 58 1/28/2016 2:32 PM Dagenais, David A. Dozier, Matthew B. DuPriest, Joe L. Gilbert, Kenneth J. Krupa, Gary J. Lipster, Stephen M. Nash, Jr., Hugh O. Porter, Kevin T. Rock, Brian E. Seabury III, James C. Shelly, Bruce D. Talka, Donald J. Todd, Lawrence E. NEC Panel 15 Final Ballot Results - Page 26 of 62-01/28/16

27 3 of 58 1/28/2016 2:32 PM Second Revision No NFPA [ Section No (B) ] (B) Transfer Switches. The number of transfer switches to be used shall be based on reliability, design, and load considerations. [ 99: ] (1) Each branch of the essential electrical system shall have one or more transfer switches. [99: (A) ] Transfer equipment shall meet the requirements in 700.5(A) 700.5(A), (B), and (C) where commercially available. (2) One transfer switch shall be permitted to serve one or more branches or systems in a facility with a continuous load on the switch of 150 kva (120 kw) or less. [99: (B) ] Informational Note No. 1: See NFPA , Health Care Facilities Code, , Transfer Switch Operation Type II; , Automatic Transfer Switch Features; and , Nonautomatic Transfer Device Features. Informational Note No. 2: See Informational Note Figure (a). Informational Note No. 3: See Informational Note Figure (b). Informational Note Figure (a) Nursing Home and Limited Health Care Facilities Minimum Requirement (greater than 150 kva) for Transfer Switch Arrangement. Informational Note Figure (b) Nursing Home and Limited Health Care Facilities Minimum Requirement (150 kva or less) for Transfer Switch Arrangement. Submitter Information Verification NEC Panel 15 Final Ballot Results - Page 27 of 62-01/28/16

28 4 of 58 1/28/2016 2:32 PM Submitter Full Name: CMP 15 Organization: [ Not Specified ] Street Address: City: State: Zip: Submittal Date: Thu Nov 05 17:48:08 EST 2015 Committee Statement Committee Statement: Response Message: NFPA 99: states that NFPA 70, Article 700 shall only apply to the life safety branch. CMP-15 deletes the last sentence added in the FR, ( Transfer equipment shall meet the requirements in 700.5(A), 700.5(A), (B), and (C) where commercially available. ) as it not consistent with the requirements of NFPA 99. Public Comment No NFPA [Section No (B)] Ballot Results This item has passed ballot 14 Eligible Voters 0 Not Returned 13 Affirmative All 0 Affirmative with Comments 1 Negative with Comments 0 Abstention Affirmative All Beebe, Chad E. Dagenais, David A. Dozier, Matthew B. DuPriest, Joe L. Gilbert, Kenneth J. Krupa, Gary J. Nash, Jr., Hugh O. Porter, Kevin T. Rock, Brian E. Seabury III, James C. Shelly, Bruce D. Talka, Donald J. Todd, Lawrence E. Negative with Comment Lipster, Stephen M. NEC Panel 15 Final Ballot Results - Page 28 of 62-01/28/16

29 5 of 58 1/28/2016 2:32 PM Please see my explanation of negative on SR NEC Panel 15 Final Ballot Results - Page 29 of 62-01/28/16

30 Second Revision No NFPA [ Section No (A) ] (A) Delayed Automatic Connections to Equipment Branch. The following equipment shall be permitted to be connected to the equipment branch and shall be arranged for delayed automatic connection to the alternate power source: (1) Task illumination and selected receptacles in the following: (a) (b) (c) (d) Patient care spaces Medication preparation areas spaces Pharmacy dispensing areas Nurses stations (unless adequately lighted by corridor luminaires) (2) Supply, return, and exhaust ventilating systems for air-born airborne infectious isolation rooms. (3) Sump pumps and other equipment required to operate for the safety of major apparatus and associated control systems and alarms (4) Smoke control and stair pressurization systems (5) Kitchen hood supply and/ or exhaust systems, or both, if required to operate during a fire in or under the hood (6) Nurse call systems [99: ] Supplemental Information File Name SR-4229.docx Description Submitter Information Verification Submitter Full Name: CMP 15 Organization: [ Not Specified ] Street Address: City: State: Zip: Submittal Date: Fri Nov 06 13:42:25 EST 2015 Committee Statement Committee Statement: This revision correlates with the requirement extracted from NFPA 99. Response Message: Public Comment No NFPA [Section No (A)] Ballot Results This item has passed ballot 14 Eligible Voters NEC Panel 15 Final Ballot Results - Page 30 of 62-01/28/16 6 of 58 1/28/2016 2:32 PM

31 7 of 58 1/28/2016 2:32 PM 0 Not Returned 14 Affirmative All 0 Affirmative with Comments 0 Negative with Comments 0 Abstention Affirmative All Beebe, Chad E. Dagenais, David A. Dozier, Matthew B. DuPriest, Joe L. Gilbert, Kenneth J. Krupa, Gary J. Lipster, Stephen M. Nash, Jr., Hugh O. Porter, Kevin T. Rock, Brian E. Seabury III, James C. Shelly, Bruce D. Talka, Donald J. Todd, Lawrence E. NEC Panel 15 Final Ballot Results - Page 31 of 62-01/28/16

32 8 of 58 1/28/2016 2:32 PM Second Revision No NFPA [ Section No (A)(2) ] (2) Design and Installation. Where an isolated power system is utilized, the isolated power equipment shall be listed and labeled as isolated power equipment, and the isolated power system shall be designed and installed in accordance with Submitter Information Verification Submitter Full Name: CMP 15 Organization: [ Not Specified ] Street Address: City: State: Zip: Submittal Date: Thu Nov 05 17:51:22 EST 2015 Committee Statement Committee Statement: Response Message: The proposed addition of the words and labeled adds clarity. The Panel agrees with the submitter s substantiation and believes that it complies with Public Comment No NFPA [Section No (A)(2)] Ballot Results This item has passed ballot 14 Eligible Voters 0 Not Returned 13 Affirmative All 0 Affirmative with Comments 1 Negative with Comments 0 Abstention Affirmative All Beebe, Chad E. Dagenais, David A. Dozier, Matthew B. DuPriest, Joe L. Gilbert, Kenneth J. Krupa, Gary J. Lipster, Stephen M. Nash, Jr., Hugh O. NEC Panel 15 Final Ballot Results - Page 32 of 62-01/28/16

33 9 of 58 1/28/2016 2:32 PM Porter, Kevin T. Rock, Brian E. Seabury III, James C. Shelly, Bruce D. Talka, Donald J. Negative with Comment Todd, Lawrence E. As submitter states, Intertek requires that listed equipment bear the ETL Listed mark, as does UL with its registered certification mark. All OSHA NRTLs require that, as do all Certification Organizations that are accredited by the Standards Council of Canada (SCC). It is the prerogative of those accreditation bodies to tell listing organizations how to operate their certification schemes. It would be improper for NFPA to encroach on OSHA s and SCC s prerogatives. Because all listed equipment leaves the manufacturer s facility with the authorized mark on it, the added language is wholly unnecessary. NEC Panel 15 Final Ballot Results - Page 33 of 62-01/28/16

34 0 of 58 1/28/2016 2:32 PM Second Revision No NFPA [ Section No (E) ] (E) Location of Isolated Power Systems. Where an isolated power system is utilized, the isolated power equipment shall be listed and labeled as isolated power equipment. Isolated power system equipment and its supply circuit shall be permitted to be located in an anesthetizing location, provided it is installed above a hazardous (classified) location or in an other-than-hazardous (classified) location. Submitter Information Verification Submitter Full Name: CMP 15 Organization: [ Not Specified ] Street Address: City: State: Zip: Submittal Date: Thu Nov 05 17:54:44 EST 2015 Committee Statement Committee Statement: Response Message: The proposed addition of the words and labeled adds clarity. The Panel agrees with the submitter s substantiation and believes that it complies with Public Comment No NFPA [Section No (E)] Ballot Results This item has passed ballot 14 Eligible Voters 0 Not Returned 13 Affirmative All 0 Affirmative with Comments 1 Negative with Comments 0 Abstention Affirmative All Beebe, Chad E. Dagenais, David A. Dozier, Matthew B. DuPriest, Joe L. Gilbert, Kenneth J. Krupa, Gary J. Lipster, Stephen M. NEC Panel 15 Final Ballot Results - Page 34 of 62-01/28/16

35 1 of 58 1/28/2016 2:32 PM Nash, Jr., Hugh O. Porter, Kevin T. Rock, Brian E. Seabury III, James C. Shelly, Bruce D. Talka, Donald J. Negative with Comment Todd, Lawrence E. As submitter states, Intertek requires that listed equipment bear the ETL Listed mark, as does UL with its registered certification mark. All OSHA NRTLs require that, as do all Certification Organizations that are accredited by the Standards Council of Canada (SCC). It is the prerogative of those accreditation bodies to tell listing organizations how to operate their certification schemes. It would be improper for NFPA to encroach on OSHA s and SCC s prerogatives. Because all listed equipment leaves the manufacturer s facility with the authorized mark on it, the added language is wholly unnecessary. NEC Panel 15 Final Ballot Results - Page 35 of 62-01/28/16

36 2 of 58 1/28/2016 2:32 PM Second Revision No NFPA [ Section No (C) ] (C) Over Volt Supply. Circuits and equipment operated on a supply circuit of over volts shall comply with Article 490. Submitter Information Verification Submitter Full Name: CMP 15 Organization: [ Not Specified ] Street Address: City: State: Zip: Submittal Date: Fri Nov 06 13:55:50 EST 2015 Committee Statement Committee Statement: CMP-15 makes this revision to correlate with Article 490. Response Message: Public Comment No NFPA [Section No (C)] Ballot Results This item has passed ballot 14 Eligible Voters 0 Not Returned 14 Affirmative All 0 Affirmative with Comments 0 Negative with Comments 0 Abstention Affirmative All Beebe, Chad E. Dagenais, David A. Dozier, Matthew B. DuPriest, Joe L. Gilbert, Kenneth J. Krupa, Gary J. Lipster, Stephen M. Nash, Jr., Hugh O. Porter, Kevin T. Rock, Brian E. NEC Panel 15 Final Ballot Results - Page 36 of 62-01/28/16

37 3 of 58 1/28/2016 2:32 PM Seabury III, James C. Shelly, Bruce D. Talka, Donald J. Todd, Lawrence E. NEC Panel 15 Final Ballot Results - Page 37 of 62-01/28/16

38 4 of 58 1/28/2016 2:32 PM Second Revision No NFPA [ Definition: Two-Fer. ] Two-Fer. An adapter cable assembly containing one male plug and two female cord connectors used to connect two loads to one branch circuit. Submitter Information Verification Submitter Full Name: CMP 15 Organization: [ Not Specified ] Street Address: City: State: Zip: Submittal Date: Fri Nov 06 11:52:17 EST 2015 Committee Statement Committee Statement: Response Message: The Correlating Committee correctly pointed out a conflict between First Revision addition of adapter definition and other uses of adapter in article 520. This Second Revision change to the definition of Two-Fer (the only conflicting use of adapter ) is required to correct that conflict. Public Comment No NFPA [Definition: Adapter.] Ballot Results This item has passed ballot 18 Eligible Voters 0 Not Returned 18 Affirmative All 0 Affirmative with Comments 0 Negative with Comments 0 Abstention Affirmative All Beebe, Chad E. Dagenais, David A. Dozier, Matthew B. DuPriest, Joe L. Gilbert, Kenneth J. Hefter, Mitchell K. Kramer, Edwin S. Krupa, Gary J. NEC Panel 15 Final Ballot Results - Page 38 of 62-01/28/16

39 5 of 58 1/28/2016 2:32 PM Lipster, Stephen M. Nash, Jr., Hugh O. Porter, Kevin T. Rock, Brian E. Seabury III, James C. Shelly, Bruce D. Skinner, Michael D. Talka, Donald J. Todd, Lawrence E. Vannice, Kenneth E. NEC Panel 15 Final Ballot Results - Page 39 of 62-01/28/16

40 6 of 58 1/28/2016 2:32 PM Second Revision No NFPA [ Section No ] Branch Circuits. A branch circuit of any size supplying one or more receptacles shall be permitted to supply stage set lighting. The voltage rating of the receptacles shall be not less than the circuit voltage. Receptacle ampere ratings and branch-circuit conductor ampacity shall be not less than the branch-circuit overcurrent device ampere rating. Table (B)(2) and Section shall not apply. The application of 210.8(B)(3)(d) shall be optional. Submitter Information Verification Submitter Full Name: CMP 15 Organization: [ Not Specified ] Street Address: City: State: Zip: Submittal Date: Thu Nov 05 11:46:24 EST 2015 Committee Statement Committee Statement: Response Message: Section 210.8(B)(3)(d) was changed in the First Revision to add requirements for GFCI protection on all outdoor branch circuits. No technical substantiation was provided to warrant the addition of these requirements to section In addition, due to the nature of the equipment used in venues covered by article 520 such as phase-controlled dimmed branch circuits, there is typically no practical way to comply with the new requirements of section 210.8(B)(3)(d). Public Comment No NFPA [Section No ] Ballot Results This item has passed ballot 18 Eligible Voters 0 Not Returned 13 Affirmative All 1 Affirmative with Comments 4 Negative with Comments 0 Abstention Affirmative All Beebe, Chad E. Dagenais, David A. Dozier, Matthew B. Gilbert, Kenneth J. NEC Panel 15 Final Ballot Results - Page 40 of 62-01/28/16