(1) Illumination
required. Lighting that is adequately adjusted to provide a margin of safety
for all work tasks must be provided and maintained.
(a) The minimum level of task lighting for
all indoor activities must be an average of ten-foot candles measured thirty
inches above the floor or at the task.
(b) The minimum level of task lighting for
all outdoor activities must be an average of five-foot candles measured thirty
inches above the working surface or at the task.
(2) If general lighting is not provided
throughout the work area, you must provide illumination which is adequately
adjusted to provide visibility of nearby objects that might be potential
hazards or to see to operate emergency control or other equipment. The minimum
level of nontask lighting for all indoor and outdoor activities must be an
average of three-foot candles measured thirty inches above the floor or working
surface.
Note: This section establishes minimal levels of illumination
for safety purposes only. Guidelines pertaining to optimal levels of lighting
and illumination may be found in practice for Industrial Lighting, ANSI/IES
RP7-1979. The minimum levels specified in subsections (1) and (2) of this
section represent averages with the lowest level in an area to be no less than
fifty percent of the indicated value.
(3) Emergency or secondary lighting system
required.
(a) There must be an emergency or
secondary lighting system that can be actuated immediately upon failure of the
normal power supply system. The emergency or secondary lighting system must
provide illumination in the following areas:
(i) Wherever it is necessary for workers to
remain at their machine or station to shut down equipment in case of power
failure.
(ii) At stairways and
passageways or aisleways used by workers as an emergency exit in case of power
failure.
(b) Emergency
lighting facilities must be checked at least every 30 days for mechanical
defects. Defective equipment must be given priority for repair
schedule.
Notes
Wash. Admin. Code §
296-79-070
Amended by
WSR
17-16-132, Filed 8/1/2017, effective
9/1/2017
Statutory Authority:
RCW
49.17.010,
49.17.040 and
49.17.050. 99-16-083, §
296-79-070, filed 8/3/99, effective 11/3/99; Order 74-24, § 296-79-070,
filed 5/6/74; Order 70-6, § 296-79-070, filed 7/10/70, effective
8/10/70.
