Same old song and dance
Same old song and dance
This discussion seems to arise with every new edition of the NEC. I too am of the thought that manufacturers and NEMA representitives should not be voting members on any of the CMP's. I guess the reality is we as whole should get more involved with the process, I have submitted several proposals over the last few code cycle but have yet to submit any comments. I know some on this site are extremely diligent in the code making process. I see familiar names all through out the ROP & ROC, but more folks must get involved.
What I find fascinating about the proposal is it cites no instances where there was a loss due to the scenerio presented.
Proposal to Change 2011 NEC
15-64 Log #3270 NEC-P15 Final Action: Accept
(517.30(E))
________________________________________________________________
Submitter: Brian E. Rock, Hubbell Incorporated
Recommendation: Add new text and update the NFPA 99 reference to read as follows:
517.30 Essential Electrical Systems for Hospitals.
[517.30(A) through 517.30(D) are unchanged by this Proposal]
(E) Receptacle Identification. The cover plates for electrical receptacles or the electrical receptacles themselves supplied from the emergency system shall have a distinctive color or marking so as to be readily identifiable. [99:4.4.2.2.4.2(B) 99:6.4.2.2.6.2(C)]
Nonlocking-type, 125-volt, 15- and 20-ampere receptacles shall have an illuminated face or an indicator light to indicate that there is power to the receptacle.
Substantiation: Receptacles that are supplied from the emergency system must be clearly identified to insure that vital equipment and instrumentation continue to function in the event of power interruption. However, there is no method of indicating that the receptacles on these circuits are, in fact, supplying power to the equipment. While the distinctive color or marking identifies that the receptacle is connected to the emergency system, an illuminated receptacle will insure that there is clear indication that the receptacle is providing power. The increased visibility of an illuminated receptacle will insure that a receptacle that is providing power can be quickly accessed in an emergency situation, especially when power failures result in diminished illumination by that portion of the room lighting not connected to the emergency system. Furthermore, reliance solely on some distinctive color in an emergency situation may be ineffective for personnel who are color blind.
Such illuminated indication of the powered state of receptacles on Type 1 Essential Electrical Systems (Type 1 EES) is fully consistent with the requirement for pilot light indicators of switch position in 2012 NFPA 99, clauses 6.4.2.1.5.12 and 6.4.2.1.5.15(B).
There appears to be some confusion in forums outside Code-Making Panel 15 that proposals similar to this one had been rejected by the CMPs responsible for Article 517 in the past. Research of prior Code cycles reveals that there had been no Proposals or Comments whatsoever in this regard. This 517.30(E) section resulted from a Proposal P17-39a in the Code cycle leading to the 2002 NEC?. During that Code cycle, there were Proposals (P17-40 through P17-44) that the ?distinctive color? be prescriptively assigned to a specific color (typically red), correctly rejected by the Panel, that may be the source of this ?urban legend? confusion. There were however no Proposals or Comments regarding powered-status indication for receptacles in that 2002 Code cycle or any Code cycle thereafter.
The revision of the existing NFPA 99 clause reference is to reflect the renumbering that occurred with the 2012 edition of NFPA 99.
Panel Meeting Action: Accept
Number Eligible to Vote: 14
Ballot Results: Affirmative: 9 Negative: 4
Ballot Not Returned: 1 Krupa, G.
Explanation of Negative:
BEEBE, C.: With the reliability, frequent testing, and regulatory oversight of emergency systems in healthcare facilities there is no need to require an indicator light on every receptacle. Alarms or battery backup or both are provided to indicate / accommodate a loss of power on vital life support equipment. There was no technical data provided to indicate that there is a widespread problem with poor patient outcomes that could have been averted with the presence of an indicator light. This change would not improve current conditions. If anything, this change could add additional risk to the patient. If the indicator light is faulty, staff may unnecessarily disconnect vital equipment from the emergency system and connect it to non-emergency system receptacles, posing additional risks.
DUNCAN, J.: The panel should have rejected this proposal and referred the submitter to NFPA 99 as this is a performance issue.
NASH, JR., H.: Pilot lights are unnecessary and do little to improve the quality of patient care. The cost is prohibitive.
TALKA, D.: While an illuminated face or pilot light is an attractive option, the submitter failed to provide any reference to a problem he has identified and is attempting to correct. Section 517.30(E) is extracted material from NFPA 99 meaning it is performance/design related. If material dealing with identification of receptacles on the essential system is under NFPA 99?s purview, it stands to reason that the need for illumination of these same receptacles should also be under NFPA 99?s purview.
Comment on Affirmative:
FRIEDMAN, S.: NEMA urges Members of CMP15 to vote Affirmative with the Panel Action to Accept Proposal 15-64. The Panel Actions for Proposals 15-35, 15-36, 15-39 and 15-41 increase the minimum numbers of receptacle outlets required. Rapid visual confirmation of which receptacle outlets are still energized when normal electrical service is interrupted may be essential to avoid incorrect connection into unpowered receptacle outlets of portable cord-and-plug-connected medical equipment and instrumentation during emergency conditions.