MIL-DTL-16878/8C
Configuration and dimensions:
See figure 1 and table I
Operating voltage:
Up to 1000 volts
Up to 200 °C
Operating temperature:
Insulation:
Extruded silicone rubber
Spark test voltage:
5.0 kV
Impulse dielectric test voltage:
8.0 kV or 5.7 kV using the 3.0 kHz spark test
Dielectric withstanding voltage:
3.0 kV
Insulation resistance:
IR = K log10 D/d
Where: IR = Minimum insulation resistance in megohms
per 1000 feet at 20 °C
K = 1,000
D = Maximum average diameter of finished wire
d = Conductor diameter
Condition 4 hours at -55±1 °C (see table II)
Cold bend:
TABLE II. Cold bend mandrel sizes.
Cold bend mandrel diameter
Wire size
(inches, maximum)
24, 22
1
20 through 12
2
10 through 6
3
4, 2
4.5
1, 0
6
00, 000, 0000
10
Surface resistance:
Not required
Condition at 250 °C
Heat resistance:
Heat aging:
Not required
Insulation tensile strength:
700 pounds force per square inch (minimum)
Insulation elongation:
125 percent (minimum)
Marking and stripe durability:
Not required
CHANGES FROM PREVIOUS ISSUE. Marginal notations are not used in this revision to identify
changes with respect to the previous issues due to the extensiveness of the changes.
CONCLUDING MATERIAL
Custodians:
Preparing activity:
Navy - SH
DLA - CC
Air Force - 11
DLA - CC
(Project 6145-2193-005)
Review activity:
Navy - AS
3