MIL-DTL-2212K(SH)
pp. Certification data requirements (see 6.4).
qq. Provisioning requirements (see 6.6).
6.3 Engineering drawings. Requirements for the content of engineering drawings for contactors, controllers,
and associated switching devices should be as specified (see 6.2).
6.4 Certification data. Certification requirements for contactors, controllers, and associated switching devices
should be as specified (see 6.2).
6.5 Special information concerning shockproofness. Users of this specification who design equipment or
acquire controllers and associated switching devices should be aware of the extent of shockproofness of equipment
listed on the Qualified Products List (QPL) No. 2212. It is the aim of this specification to provide equipment as
shockproof as possible for naval shipboard use; however, due to the nature of shock, 100 percent shockproofness is
not possible in all cases. During shock, it is possible that the controller output power may be interrupted
momentarily. It is also possible that associated switching devices may interrupt the circuit they are part of
momentarily.
6.5.1 Limits on shock testing. Users of this specification who have the responsibility for acquisition of
shockproof equipment for naval shipboard use are requested to give careful consideration before requiring additional
shock testing, which will stress the equipment and may cause unnoticed damage. If additional shock testing is
deemed essential, then instruction should be issued to require careful post-shock examination by qualified personnel.
6.6 Provisioning. Provisioning Technical Documentation (PTD), spare parts, and repair parts should be
furnished as specified (see 6.2). When ordering spare parts or repair parts for the equipment covered by this
specification, the contract should state that such spare parts and repair parts should meet the same requirements as
the parts used in the manufacture of the equipment. Packaging for such parts should also be specified.
6.7 Qualification. With respect to products requiring qualification, awards will be made only for products
which are, at the time of award of contract, qualified for inclusion in Qualified Products List QPL No. 2212 whether
or not such products have actually been so listed by that date. The attention of the contractors is called to these
requirements, and manufacturers are urged to arrange to have the products that they propose to offer to the Federal
Government tested for qualification in order that they may be eligible to be awarded contracts or orders for the
products covered by this specification. Information pertaining to qualification of products may be obtained from
Commander, Naval Sea Systems Command, ATTN: SEA 05S, 1333 Isaac Hull Avenue, SE, Stop 5160,
Washington Navy Yard, DC 20376-5160 or emailed to CommandStandards@navy.mil. An online listing of
products qualified to this specification may be found in the Qualified Products Database (QPD) at
6.7.1 Provisions governing qualification. Copies of SD-6, "Provisions Governing Qualification," are available
6.8 Definitions.
6.8.1 Across-the-line. Across-the-line signifies the connection of an apparatus directly across the main supply
circuit.
6.8.2 Ambient temperature. Ambient temperature is the temperature of the medium such as air, water, or earth
into which the heat of the equipment is dissipated. For self-ventilated equipment, the ambient temperature is the
average temperature of the air in the immediate neighborhood of the equipment. For air or gas-cooled equipment
with forced ventilation or secondary watercooling, the ambient temperature is taken as that of the in-going air or
cooling gas. For self-ventilated enclosed (including oil-immersed) equipment considered as a complete unit, the
ambient temperature is the average temperature of the air outside of the enclosure in the immediate neighborhood of
the equipment.
6.8.3 Associated switching device. Associated switching devices are devices that are used in conjunction with
the main line contactor(s) of a controller to control the operation of the connected load and may be mounted
separately from the controller. These include control and overload relays, limit switches, push-button stations
(see 6.8.58), pressure switches, selector switches, level switches, and others.
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