(b) Control by switch(s) inside the room door(s).
6.11.9 CLOSETS or LOCKERS
Place fixtures appropriately to provide adequate lighting in closets
and lockers.
6.12 CORRIDOR LIGHTING IN NURSING HOMES AND GERIATRIC AREAS (NOT
DOMICILIARY)
(a) Design lighting to minimize both direct and indirect glare in the
eyes of the elderly and visually impaired. Use appropriate indirect
fluorescent lighting that is efficient, easily serviceable, and does
not collect excessive amounts of dust.
(b) Off-center direct fluorescent lighting units placed at or near the
walls can minimize reflections from the floor. Louvers or baffles
oriented at right angles to the corridor are effective in blocking
direct glare. Reasonable uniformity is desirable; however, breaks
should be provided in fixture runs as some shadowing is beneficial in
delineating forms and shapes for the visually impaired.
(c) Designs should not encourage dirt accumulation or exceed required
energy limits and ensure easy maintenance.
6.13 DENTAL SUITE LIGHTING
6.13.1 GENERAL: (Coordinate design with Receptacle Requirements. Refer
to Article 3.4.15.
(a) Locate low-voltage control multi switches within receptionist area
for selective centralized control of normal lighting. Switch by logical
groups of contiguous rooms, limited in area to 10percent of the total
Dental Suite area.
(b) Locate relay panel next to local normal power panel for control of
lighting circuits.
(c) Install low-voltage wiring in conduit.
(d) Connect low-voltage power supply transformers to the Critical
Branch of the Essential Electrical System.
(e) Lighting and power circuits that are connected to the Critical
Branch shall not be switched by the low-voltage control scheme.
(f) Lighting circuits that are connected to the Life Safety Branch
(i.e. egress lighting) shall not be switched.
(g) Certain power circuits, which are identified in the Equipment Guide
List, shall not be switched by the low-voltage control scheme.
ELECTRICAL DESIGN MANUAL
6-7
LIGHTING
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