

ELECTRICAL MEASUREMENTSThe tests are performed to measure and collect data from electrical and electronic parts using various measurement methods including, but not limited, to the following: capacitance, resistance, winding resistance, insulation resistance, magnetic permeability, power input, and quality factor Q. CAPACITANCEThe capacitance test is used to measure the capacitance of component parts. Preferred test frequencies for this measurement are 60 Hz, 120 Hz, 1 kHz, 100 kHz, and 1 MHz. Capacitance testing is specified in the following:
DC RESISTANCEThe dc resistance test is used to measure the directcurrent (dc) resistance of resistors, electromagnetic windings of components, conductors, etc. DC resistance testing is specified in the following: MILT27, MILSTD202, MILSTD461, MILSTD462, MILC11693, MILR12934, MILC15305, MILR18546
ELECTRICAL WINDING RESISTANCEElectrical winding resistance measurements are performed on electrical machinery. These measurements are commonly used to determine temperature rises, to compare winding resistance with design data, to compare production models against the first article model, and to detect defective windings. Electrical winding resistance testing is specified in the following: MILSTD705, MILC15305, TANWT000487, GR487COR
INSULATION RESISTANCEThe insulation resistance test measures the resistance offered by the insulating members of a component part to an impressed direct voltage tending to produce a leakage or current through or on the surface of these members. The test is especially helpful in determining the extent to which insulating properties are affected by deteriorative influences, such as heat, moisture, dirt, oxidation, or loss of volatile materials. Insulation resistance testing is specified in the following: MILPRF27, MILT27, MILSTD202, MILJ641, MILSTD750, MILI983, MILSTD1344, MILSTD3885, MILT7743, MILC8384, MILS8805, MILG10228, MILM10399, MILC11015, MILR11050, MILC11693, MILI11804, MILC12889, MILR12934, MILR13312, MILC13486, MILC13777, MILC14409, MILR15109, MILC15305, MILC15514, MILT15514, MILF15733, MILP15736, MILS15743, MILF16377, MILB16392, MILW16878, MILS17000, MILM17059, MILM17060, MILT17275, MILT17301, MILV17361, MILF18327, MILR18546, MILM19097, MILM19160, MILM19633, MILR19648, MILH19760, MILN19900, MILS20708, MILC21097, MILR21098, MILT21609, MILS22432, MILH22594, MILB23071, MILC23200, MILA23806, MILL23886, MILP24041, MILC24095, MILP24423, MILE39029, SCL7695, SCL7722, UL427, UL471, UL560, ASTM D395182, MILT0014358
MAGNETIC PERMEABILITYThis test measures the magnetic permeability of enclosed materials and equipment. It demonstrates whether the test item meets the magnetic signature limitations. Magnetic permeability testing is specified in the following: RTCA/DO160, MILSTD461, MILSTD462, MILT15514, MILF16377, MILE16400, MILT16420, MILH83511
POWER INPUTThe purpose of this test is to measure the electrical power including parameters such as voltage, current, frequency, waveform phase, etc., applied to the input terminals of equipment under various conditions of operation. Power input testing is specified in the following: MILSTD705, MILSTD1399, MILM8609, MILE16400, UL751, UL560, RTCA/DO160
QUALITY FACTOR (Q)The purpose of this test is to measure the quality factor, commonly called Q, of electronic parts such as capacitors and inductors. By definition, the factor Q expresses the ratio of reactance to effective resistance of a circuit element. Quality factor Q testing is specified in the following: MILSTD202, MILSTD750, MILC12889, MILC14409
RESISTANCETEMPERATURE CHARACTERISTICThe resistancetemperature characteristic test measures the percentage change in directcurrent (dc) ohmic resistance from the dc ohmic resistance at the reference temperature. Resistancetemperature testing is specified in the following: MILSTD202, MILSTD705, MILE5272, MILT15514, MILP24423, UL427, UL681, UL698




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