General. Construction areas, ramps, runways, corridors, offices, shops, and storage areas shall be lighted to not less than the minimum illumination intensities listed in Table D-3 while any work is in progress:
TABLE D-3 - MINIMUM ILLUMINATION INTENSITIES IN FOOT-CANDLES
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|
Foot-candles | Area or operation
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|
5............. | General construction area lighting.
3............. | General construction areas, concrete placement,
| excavation and waste areas, access ways, active
| storage areas, loading platforms, refueling, and
| field maintenance areas.
5............. | Indoors: warehouses, corridors, hallways, and
| exitways.
5............. | Tunnels, shafts, and general underground work areas:
| (Exception: minimum of 10 foot-candles is required
| at tunnel and shaft heading during drilling,
| mucking, and scaling. Bureau of Mines approved cap
| lights shall be acceptable for use in the tunnel
| heading)
10............ | General construction plant and shops (e.g., batch
| plants, screening plants, mechanical and
| electrical equipment rooms, carpenter shops,
| rigging lofts and active store rooms, mess halls,
| and indoor toilets and workrooms.)
30............ | First aid stations, infirmaries, and offices.
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