MIL-DTL-2036E
3.2.16.2 Drain temperatures. The cooler shall maintain the machine temperatures within the specified
limits under the maximum load conditions except overloads having a specified duration of 5 minutes or
less when the cooler is supplied with sea water at an initial temperature of approximately 85°F (29.4°C).
3.2.16.3 Air temperature alarm. An air temperature alarm thermostatic switch conforming to type
1C/N31A of MIL-S-16032 shall be provided and located so as to operate at a predetermined temperature
of the air exhausting from the electric machine into the cooler.
3.2.16.4 Air filter. Machines having commutators shall have an air filter for removing carbon dust from
recirculating air through the machine and heat exchanger.
3.2.17 Protected enclosure. Sheet expanded metal, where used to limit the size of enclosure openings,
shall have a nominal width of opening not in excess of .5 inch (12.7mm) and a nominal thickness,
exclusive of coating, of not less than .469 inch (1.19mm).
3.2.18 Interface requirements for enclosures. While complying with requirements as specified herein, an
enclosure obtained as an integral portion of an equipment or system, and in its service environment, shall
effectively perform its intended functions and interface both with the equipment it encloses and the
system in which the equipment is used. When furnished separately from the equipment or system in
which it is applied, all applicable interfaces and environmental requirements shall be as specified
3.2.18.1 Seals and special screws. When it is possible to energize equipment in a disassembled or
partially assembled condition, seals or screws used shall require a special tool for removal. The special
tool shall be furnished with the enclosure. (Special tools are defined as those tools not listed in the
Federal Supply Catalog).
3.2.18.2 Interlock. The requirements of 3.2.18.1 do not apply when an interlocking device is used to
open live circuits before access is gained.
3.2.19 Equipment specification requirements. Additional design details for enclosures of specific
equipments shall be as required by the equipment specification. Requirements of the equipment
specification may affect enclosure design (for example, electromagnetic interference limitations, high
impact shock, vibration, salt spray and nature and design features of the equipment contained within the
enclosure) (see 6.3).
3.3 Materials. Enclosures shall be constructed of either a corrosion-resisting material or a noncorrosion-
resisting material that has been protected against corrosion in accordance with MIL-E-917.
3.3.1 Prohibited materials. Unless otherwise specified (see appendix), asbestos, cadmium and mercury
shall not be used in construction of enclosures covered by this specification.
3.3.1.1 Mercury. Mercury shall not be used in manufacturing and test processes (including test
equipment such as mercury thermometers) applying to the basic enclosure but may be used in
manufacturing and test processes for materials and parts provided it is used in such a way that
contamination of the materials and parts themselves cannot result.
3.3.2 Recovered materials. Unless otherwise specified herein, all equipment, material, and articles
incorporated in the products covered by this specification shall be new and may be fabricated using
materials produced from recovered materials to the maximum extent practicable without jeopardizing the
intended use. The term "recovered materials" means materials which have been collected or recovered
from solid waste and reprocessed to become a source of raw materials, as opposed to virgin raw
materials. None of the above shall be interpreted to mean that the use of used or rebuilt products is
allowed under this specification unless otherwise specifically specified.
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