05-06M
17.2.6 Break room with sink, storage cabinets, and electric service for
microwave oven and refrigerator.
17.2.7 Housekeeping closet.
17.3 Provide access platforms as follows:
17.3.1 A platform above each boiler to provide access to valves and manways
which are located on top of the boiler. Minimum width shall be 760 millimeters
(2.5 feet), with length to suit boilers furnished.
17.3.2 A 920 millimeter x 1220 millimeter (3 feet x 4 feet) steam drum manway
access platform at the rear of each water tube boiler. Locate below the steam
drum.
17.3.3 Platform for access to economizer valves and service panels.
17.3.4 Other platforms as necessary to allow access to equipment requiring
maintenance which is located more than 4.5 meters (l5 feet) above the floor.
17.3.5 Permanent ladders for access to all platforms.
The design of ladders
and platforms shall conform to OSHA requirements.
17.3.6 Permanent ladders and stairs:
17.4.1 Provide stairways to mezzanine, platform or pit levels which require
frequent access, such as deaerator level.
17.4.2 Other areas, such as boiler platforms, may have ladders.
Ladders
higher than 2130 millimeters (7 feet) should be sloped 25%.
shall be provided as follows:
roof. Provide combustion air make-up heating and ventilating units in colder
climates.
hour.
17.5.3 Heat in personnel rooms to maintain 21 C (70 F).
17.5.4 Heat as necessary in the boiler room, chiller room and other equipment
spaces to maintain 18 C (65 F).
17.5.5 Air conditioning in the control room/Engineering Control Center,
office, toilets, showers, break room.
17.6 Acoustical Considerations: Provide acoustical treatment on building
surfaces which are within 3 meters (10 feet) of burner fans or atomizing air
compressors or co-generation engines. Provide noise control in the operations
room/Engineering Control Center and in the office in accordance with VA Design
and Construction Procedure, Noise Transmission Control.
18. SEISMIC REQUIREMENTS:
18.1 Earthquake-resistive design shall comply with the requirements of Master
Specification Section 13081, Seismic Restraint Requirements for Nonstructural
Components.
18.2 Bracing for systems that experience thermal expansion shall be designed
to allow the thermal expansion without overstressing any components.
19. MODIFICATIONS TO EXISTING PLANTS:
19.1 In addition to the equipment required for operation, the design shall
provide a standby boiler and standby pumps during all phases of construction.
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