MIL-DTL-16878/37A
Insulation resistance:
IR = K log10 D/d
Where:
IR = Minimum insulation resistance in megohms per 1000
feet at 20 °C
K = 20,000
D = Maximum average diameter of finished wire
d = Conductor diameter
Condition 4 hours at -25±1 °C (see table II)
Cold bend:
TABLE II. Cold bend mandrel sizes.
Cold bend mandrel diameter
Wire size
(inches, maximum)
18 through 10
.5
8 through 2
1.5
1 through 0000
4.0
Surface resistance:
Not required
Condition at 150 °C
Heat resistance:
Heat aging:
Not required
Insulation tensile strength:
1000 pounds force per square inch (minimum)
Insulation elongation:
250 percent (minimum)
Identification of product:
Required
CHANGES FROM PREVIOUS ISSUE. Marginal notations are not used in this revision to identify
changes with respect to the previous issue because of the extensiveness of the changes.
CONCLUDING MATERIAL
Custodians:
Preparing activity:
Navy - SH
DLA - CC
Air Force - 11
DLA - CC
(Project 6145-2193-020)
Review activity:
Navy - AS
3