MIL-DTL-81963C
3.6.5.2 Electrical breakaway torque (4.9.5.2). When required by the applicable general specification,
the electrical breakaway torque shall not exceed the values specified in the applicable documents and the
specification sheet that cite MIL-DTL-81963 as a direct reference.
3.6.6 Dielectric withstanding voltage (see 4.9.6). The servocomponent shall withstand the test
potentials between application points specified in the applicable general specification. The
servocomponent shall display no evidence of insulation breakdown or of internal arcing nor shall winding
leakage current exceed 1 milliampere peak. The leakage current limit shall not include the current drawn
by the test equipment capacitance. Immediately after meeting this requirement, the servocomponent
shall meet the insulation resistance requirement.
3.6.7 Insulation resistance (see 4.9.7). The insulation resistance shall be tested at the DC voltage
specified and between the application points designated for dielectric withstanding voltage specified in the
applicable general specification. Insulation resistance shall be at least 50 megohms at -55 degrees C or
at the standard test condition and at least 10 megohms at the high ambient temperature specified in the
applicable general specification.
3.6.8 Current (see 4.9.8). The current drawn by each winding designated in the applicable general
specification shall be within the limits specified in the applicable documents and the specification sheet
that cite MIL-DTL-81963 as a direct reference.
3.6.9 Power (see 4.9.9). The power consumed by each winding designated in the applicable general
specification shall be within the limits specified in the applicable documents and the specification sheet
that cite MIL-DTL-81963 as a direct reference.
3.6.10 Impedance (see 4.9.10). The impedance of each winding designated in the applicable general
specification shall be within the limits specified therein.
3.6.11 Temperature rise (see 4.9.11). The temperature rise of the servocomponent shall not exceed
the value specified in the applicable documents and the specification sheet that cite MIL-DTL-81963 as a
direct reference.
3.6.12 Variation of brush contact resistance (see 4.9.12). When required by the applicable general
specification, the change of brush contact resistance over the entire length of travel of the brush on the
collector rings shall not be more than 1.0 ohm for servocomponents whose measured rotor resistance is
200 ohms or less. Change of brush resistance shall be no more than 0.5 percent of measured rotor
resistance for servocomponents whose measured rotor resistance is greater than 200 ohms. Resistance
variations of less than 25 milliseconds in duration shall be disregarded.
3.6.13 Electromagnetic interference (see 4.9.13). When required by the applicable general
specification, the servocomponent shall not exceed the conducted and radiated limits specified in MIL-
STD-461, requirements CE03 and RE02 of Equipment Class IIB.
3.6.14 Terminal or wire lead strength.
3.6.14.1 Wire leads. Each wire lead terminal shall conform to the requirements specified in the
applicable general specification. Unless specified otherwise in the applicable general specification, each
wire lead shall be capable, once only, of withstanding a pulling force of one pound in the case of
servocomponent size 05, or of two pounds for servocomponents in frame size 08 and larger. Both
conductor strands and insulation shall be subjected to the force. Wire leads shall be anchored so as not
to transmit the strain to the internal electrical connections. Following the test, each wire lead shall not
separate from the housing nor show evidence of insulation or conductor strand damage. Test in
accordance with 4.9.14.1.
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