Diesel Generators .
Diesel generators are generally located outside, in their own weather-tight
enclosure. When diesel generators are located inside, the engine
exhaust silencers may be located inside the room or on the building roof;
in either case, the silencers should be accessible for inspection.
Due to the noise and vibration levels in these rooms, the diesel engine
controls should be located in a separate room.
Diesel engine air intakes should not be located near any volatile gas
sources and the bottom of the intake should be a minimum of 20 feet
For indoor location of diesel generator units, an overhead bridge crane
sized to lift the generator should be provided for maintenance.
Alternately, a rigging beam over each generator may be used.
Auxiliary Lifting Devices . Hoisting, lifting, and rigging are an integral part of
operations at DOE facilities. This section provides general guidelines to be
considered for plant layout and arrangement for the selection and application of
auxiliary lifting devices. Additional guidance is provided in DOE-STD-1090,
Hoisting and Rigging.
Bridge Cranes. Bridge cranes rated up to 75-ton capacity should be used in
such areas as workshops, drum storage areas, radioactive machine shops, and
for the maintenance of individual pieces of equipment. Hoists should be used
with bridge cranes to increase the crane use. Crane clearance requirements and
the limits on hook travel are special considerations to be looked into when
selecting bridge cranes.
Hoists. Hoists are available with electric, pneumatic, or manual operators. The
following provides guidance on the selection of a hoist.