i.
Noise and Vibration Control. All mechanical systems and equipment
shall be designed to limit noise and vibration in accordance with NAVFAC
DM-3.10, Noise and Vibration Control of Mechanical Equipment.
5.
ELECTRICAL REQUIREMENTS. Electrical systems shall be provided in accord-
ance with Electrical Engineering, DM-4.1, DM-4.2, DM-4.3, DM-4.4, DM-4.6, and
DM-4.7, and as follows:
a.
Electrical Fixtures. Electrical explosionproof, Class I, Division
1, Group D Fixtures and accessories shall be specified, where required by
National Electrical Code, NFPA 70 and other applicable fire codes, for the
service station facility, paint and lettering bay, and service pits for
railroad equipment.
b.
Shop Intercom System. A shop intercom system with requirements as
determined by the using agency shall be provided.
c.
Electrical Power Requirements.
(1) Single-phase, 120-volt, 20-ampere, 60-Hertz ac power shall be
provided to heavy-duty electrical extension cord bose reels in the general
repair bays. (See NAVFAC P-272, Part One.)
(2) Other electrical power shall be provided as required by the
equipment in each area of the facility.
6.
OVERHEAD WEIGHT-HANDLING EQUIPMENT. Overhead weight-handling equipment
shall be provided in the work bays as indicated, when the work bay is included
as a requirement for the facility. See Weight-Handling Equipment, NAVFAC
DM-38.1 for criteria for overhead weight-handling equipment.
a.
Engine and Accessories Overhaul Bay. One overhead monorail hoist
assembly with 2-ton capacity shall be located at the centerline and run the
full length of the bay. The hoist and motorized trolley shall be electrically
operated with pendent pushbutton controls that can be conveniently operated at
floor level.
b.
Construction/Weight-Handling Equipment Bay. One overhead bridge
crane with 6-ton capacity shall be located over the entire area as shown in
NAVFAC P-272, Part One. The bridge crane bridge, trolley, and hoist shall be
electrically operated with pendent pushbutton controls that can be
conveniently operated at floor level.
c.
Tire Service and Repair Bay. An overhead monorail hoist assembly
with 1-ton capacity shall be located to run over the tire storage rack and
into the work area. The hoist and motorized trolley shall be electrically
operated with pendent pushbutton controls that can be conveniently operated at
floor level.
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