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the service galleries for use aboard ship. Provide receptacles for connecting the
welding sets. Provide welding outlets at the welding manhole and service galleries.
Wiring. Install permanent wiring between the manhole and the service
outlets. Provide receptacles for 120-volt, 3-phase service for temporary lighting and
power at all welding manholes.
Alternate Distribution. If space does not permit the use of welding
manholes, install welding generators in a centrally located permanent building, and the
welding power distributed radially to the service galleries.
Fire Alarm Service. For fire alarm system design and installation, refer to
MIL-HDBK-1008C, Fire Protection for Facilities Engineering, Design, and Construction.
Lighting. All lights in the drydock should be centrally controlled and the
lighting intensity on the work surface should be not less than 107.6 lux (10 footcandles.)
Night Lighting. Provide adequate lighting on the walls of the drydock for
night work and, for daylight work, in high sidewall drydocks where daylight lighting is
8-184.108.40.206.1 Types. These lights may be of the submersible or nonsubmersible type.
If the latter, they must be kept above the dock flooding level. If of the former type, they
may be placed at a lower level, and sometimes at two levels for deeper docks.
8-220.127.116.11.2 Location. Place lights on mounts to permit training and elevating, and
locate at suitable intervals horizontally. They must be placed in niches or protected by
Floodlighting. Fabrication and material storage areas around the dock
generally are lighted by banks of floodlights mounted on portable or fixed towers, or on
sides of buildings. The lighting intensity for these areas should be about 107.6 lux (10
footcandles.) Portable towers may be connected to receptacles in the welding
manholes for large docks. Provide weatherproof receptacles on concrete or metal
pedestals for the smaller docks and for areas beyond the welding manholes.