1008.2.1 Illumination level under normal power .

The means of egress illumination level shall be not less than 1 footcandle (11 lux) at the walking surface.

   Exceptions:

      1.   For auditoriums, theaters, concert or opera halls and similar assembly occupancies, the externally illuminated walking surface is permitted to be reduced during performances to not less than 0.5 footcandle (5.38 lux) for aisles and cross aisles, and 0.2 footcandle (2.15 lux) for other portions of the space, provided that the required illumination is automatically restored upon activation of a premise's fire alarm system where such system is provided.

      2.   Safe areas in assembly occupancies shall be illuminated in accordance with Section 1029.19.3.2.

      3.   Open exterior spaces used to receive occupants as Class 1 or 2 exits in assembly occupancies shall be illuminated in accordance with Section 1029.19.4.

      4.   In exits in buildings that contain existing photoluminescent exit path markings tested in laboratory conditions with 2 footcandles (22 lux) of activating illumination, the illumination level shall not be less than 2 footcandles (22 lux).

Editor's note: For related unconsolidated provisions, see Appendix A at L.L. 2010/047.

1008.2.2 Exit discharge.

In Group I-2 occupancies where two or more exits are required, on the exterior landings required by Section 1010.1.6, means of egress illumination levels for the exit discharge shall be provided such that failure of any single lighting unit shall not reduce the illumination level on that landing to less than 1 footcandle (11 lux).

1008.2.3 Sensors and controls.

Automatic, occupant sensor or photosensor lighting controls shall be permitted within means of egress, provided that the illumination level is not reduced to a level below the minimum requirements of Section 1008.2.1, and the switch controllers are equipped for fail-safe operation ensuring that if the sensor or control fails, the lighting levels will be at the levels required by Section 1008.2.1.

Editor's note: For related unconsolidated provisions, see Appendix A at L.L. 2010/047.

1008.3 Emergency power for illumination .

The power supply for means of egress illumination shall normally be provided by the premise's electrical supply.

1008.3.1 Rooms and spaces that require two or more means of egress.

In the event of power supply failure in rooms and spaces that require two or more means of egress, an emergency electrical system shall automatically illuminate all of the following areas:

   1.   Aisles.

   2.   Corridors.

   3.   Exit access stairways and ramps.

   4.   Safe areas in assembly occupancies where required by Section 1029.19.3.2.