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MIL-DTL-2486 Cable, Special Purpose, Electrical Wm-46/UThis specification covers one type of ten conductors, Buna S insulated and jacketed cable designated as Cable, Special Purpose, Electrical WM-46/U. Eight of the conductors are equivalent to 20 AWG, four of which are shielded, and two of the conductors are equivalent to 16 AWG, one of which is shielded.

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MIL-DTL-2486E
4.5.5 Conductor separator. Samples of each of the insulated conductors shall be examined as
specified in 3.4.
4.5.6 Jacket separator. Samples of the cable shall be examined as specified in 3.10.
4.5.7 DC resistance. This test shall be performed as specified in method 6021 of FED-STD-228 for
compliance with 3.12.
4.5.8 Dielectric strength. This test shall be performed in accordance with method 6111 of
4.5.8.1 Alternate test procedure. The following alternate test procedure may be used in place of the
test procedure specified above:
a. Arrange the 10 conductors and the shielding in a rectangle containing 3 rows and 4 columns.
The last column will contain 2 unused spaces.
b. Connect all the conductors in a column together. Do this for each column.
c. Apply the specified test voltage, for the specified time, between each column of the rectangle
in turn, and the remaining columns connected together.
d. Connect all the conductors in a row together. Do this for each row.
e. Apply the specified test voltage, for the specified time, between each row of the rectangle in
turn, and the remaining rows connected together.
f. Connect all the conductors together.
g. Apply the specified voltage, for the specified time, between all the conductors connected
together and to sheath.
Number of
Number Number
Number of
of rows  of columns
unused spaces
conductors
10
3
4
2
4.5.9 Insulation resistance. This test shall be performed in accordance with method 6031 of
4.5.10 Conductors. Samples of the cable shall be examined for the number and size of conductors
as specified in 3.3.
4.5.11 Insulation thickness. Insulation thickness shall be measured by any method in FED-STD-228
(see 3.5.2).
4.5.12 Jacket. Samples of the cable shall be examined as specified in 3.11.
4.5.13 Cold bend.
4.5.13.1 Specimens. One specimen from each sample unit shall be prepared for test. In the event
of failure of any one specimen, two additional specimens shall be prepared.
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