ML20127A985
| ML20127A985 | |
| Person / Time | |
|---|---|
| Issue date: | 10/11/1983 |
| From: | Moore V Office of Nuclear Reactor Regulation |
| To: | Benaroya V Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20127A989 | List: |
| References | |
| FOIA-85-306 NUDOCS 8310260362 | |
| Download: ML20127A985 (2) | |
Text
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OCT 11 1983 Central Files HFEB Files VMoore HFEB Members
!!El10RANDUli FOR: Victor Senaroya, Chief Chenical Engineering Granch Division of Engineering FR0ll: Voss A. floore, Chief Human Factors Engineering Branch Division of Human Factors Safety
SUBJECT:
ENERGENCY LICilTIliG ILLU!!INATION STANDARDS
REFERENCE:
TIA Task No. 83-87, Emergency Lighting Requirements, dated September 23, 1983 In response to the referenced TIA, HFED provides the following guidance en illumination standards for energency lighting:
Energency lighting must be considered in two contexts; (1) that required for personnel transit, and (2) that required for control of. operations or safe shutdown. .
Personnel transit should take iqto account the primary access routes from the control rocn to remote 1 shutdown areas, and all egress routes from the control roon, remote shutdown areas, and other areas where personnel are located during normal operations. These routes generally contain obstructions (e.g., piping, structures) which require visual detection to permit safe transit. The safe illumination level for these conditions, as recommended by the Illuminating Engineering Society of North America, is an absolute mininun of five (5) footcandles. In order to avoid tripping hazards and head injury, this illumination level should exist at both the floor and six-foot levels.
Ilininum illumination for energency operating conditions should be ten (IO) footcandles at the task location. The task location is the panel surface where control is perforced and displays are read. This illumination level should be incident on the panel with the operator in position for normal control reach. Location and type of energency lighting should be such that glare on displays and labels is ninini::d and does not interfere with readability.
Contact:
g W~f 4 /M R. J. Eckenrode x24082 .
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Victor Denaroya -
2_ OCT 11 1983 Since eye adaptation to extrene changes in illunination (e.g., nornal illumination to darkness) can take several ninutes, energency lighting should be autenatically activated upon failure of the nomal systen.
This will nininize the extremity of the change and naxinize the speed of eye recovery.
Energency lighting illunination levels and associated readability characteristics for operation in the control roons are currently included in the liFEB review of the Detailed Control Roon Design Peview as required by Supplenent 1 to flVREG-0737. Consideration is being g!ven to clarifying Supplenent 1 of fiUREG-0737 to include renote shutdown areas in the Detailed Centrol Roon Design Review.
If further infomation or more detail is required, the ilFEB contact on this task is R. J. Eckenrode, lir. Eckenrode may be reached at extension 24862.
Voss A. Iloore, Chief
. Hunan Factors Engineering 3 ranch
_ Division of Iluman Factors Safety cc: R. Ferguson i T. llanbach 1 l R. liessnan
- 11. Srinivasan G. Ilolahan T. Bishop, R-V.
K. Scown, P,- V.
H. Thompson, Jr.
W. Russell
- See Previous Concurrence OFFICE)
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