FILTER CONNECTIONS

[_____]] with individual power line filters mounted and access cover plate

attached.

2.4

FILTER CONNECTIONS

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NOTE: When installation of the filter unit inside

of the shielded enclosure is required, the power

input terminal compartment shall be RF tight instead

of the load terminal compartment; and the filters

shall be located in the load terminal compartment.

This arrangement is necessary to prevent radiated RF

energy within the shielded enclosure from inducing

RF energy in the power conductors between the

filters and the point where the conductors pass

through the shielded enclosure wall. To provide for

this arrangement, change the wording as necessary,

i.e., change the word "Load" to read "Power Input"

and change the words "Power Input" to read "Power

Output" or "Load," as appropriate.

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NOTE: If no drawings are furnished with the

specifications, specify the wire size.

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Equip individual filters within a unit with insulated terminals and

incorporate suitably sized flexible leads from insulated filter terminals

to standoff insulator terminals or insulated terminal blocks. Mount

standoff insulator terminals or insulated terminal blocks in terminal

compartments. Provide solderless lugs for connecting phase and neutral

wires to filter units. Lugs shall be hex head bolt or screw type and shall

conform to UL 486A-486B. Space live parts in accordance with UL 1283.

Filter leads shall be copper.

2.5

INDIVIDUAL FILTERS

2.5.1

Filter Construction

After filter is filled with an impregnating or encapsulating compound, weld

seams. When solid potting compound is used to fill filter, filters may be

mechanically secured and sealed with solder. Use hermetically sealed

impregnated capacitors, or vacuum impregnate complete filter assembly.

Fabricate individual filter cases from not less than number 16-gage steel

and finish cases with a corrosion-resistant plating.

2.5.2

Impregnating or Potting Compound

Fill filter with an impregnating or potting compound meeting requirements

of MIL-F-15733 and having a flashpoint for operating temperature range B as

defined in Table VIII of MIL-F-15733.

2.5.3

Overload Requirements

Provide as specified in MIL-F-15733.

SECTION 16280N

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