15.6.1 A satisfactory level of lighting shall
be available to enable the operating personnel to adequately perform
all their tasks both at sea and in port, by day and night. There shall
be only a limited reduction in the illumination of essential instruments
and controls under likely system fault conditions.
15.6.2 Care shall be taken to avoid glare and
stray image reflection in the operating area environment. High contrast
in brightness between work area and surroundings shall be avoided.
Non-reflective or matt surfaces shall be used to reduce indirect glare
to a minimum.
15.6.3 A satisfactory degree of flexibility within
the lighting system shall be available to enable the operating personnel
to adjust the lighting intensity and direction as required in the
different areas of the operating compartment and at individual instruments
and controls.
15.6.4 Red light shall be used to maintain dark
adaptation whenever possible in areas or on items of equipment requiring
illumination in the operational mode, other than the chart table.
15.6.5 During hours of darkness, it shall be possible
to discern displayed information and control devices.
15.6.6 Reference is made to additional requirements
on lighting in 12.7 and 12.8.