MIL-DTL-22759/87A
1/
Table II.
Wire Insulation materials.
Tape Code
Thickness (Nom)
Material
1
0.0020
0.0005 (FP) / 0.0010 (Polyimide) / 0.0005 (FP)
2
0.0010
FP (Skived)
3
0.0020
FP (Skived)
4
0.0020
FP (Unsintered)
5
0.0025
FP (Unsintered)
6
0.0030
FP (Unsintered)
1/
Physical properties of FP tapes (skived and unsintered) shall be in accordance with MIL-W-22759 requirements.
TABLE III. Physical properties of FP/Polyimide/FP Tapes.
Tensile Strength
19,000 lb./in sq. (average minimum)
Tensile Modulus
350,000 lb./in sq. (average minimum)
Elongation
40 percent (average minimum)
Dielectric Strength
4,000 volts/mil (average minimum)
0.0005 FP Layer (bottom)
Distinguishable color (next to conductor)
May be used at manufacturer's option
1/
TABLE IV. Tape overlap requirements.
Wrap 1
Wrap 2
Wrap 3
Wrap 4
Nominal
Percent
Percent
Percent
Percent
Wall
Wire
Tape
Overlap
Tape
Overlap
Tape
Overlap
Tape
Overlap
Thickness
Size
Code
Min
Max
Code
Min
Max
Code
Min
Max
Code
Min
Max
(mils)
26
1
50.5
54.0
4
50.5
54.0
7.4
24
1
50.5
54.0
4
50.5
54.0
7.4
22
1
50.5
54.0
4
50.5
54.0
7.4
20
1
50.5
54.0
4
50.5
54.0
7.4
18
1
50.5
54.0
4
50.5
54.0
7.4
16
1
50.5
54.0
5
50.5
54.0
8.3
14
1
50.5
54.0
5
50.5
54.0
8.3
12
1
50.5
54.0
6
50.5
54.0
9.1
10
1
50.5
54.0
6
50.5
54.0
9.1
8
2
20.5
35.0
1
50.5
55.0
6
67.0
71.0
13.2
6
2
20.5
35.0
1
50.5
55.0
6
67.0
71.0
13.2
4
3
20.5
35.0
1
50.5
55.0
6
50.5
54.0
6
50.5
54.0
16.2
2
3
20.5
35.0
1
50.5
55.0
6
50.5
54.0
6
50.5
54.0
16.2
1
3
20.5
35.0
1
50.5
55.0
6
50.5
54.0
6
50.5
54.0
16.2
1/0
3
20.5
35.0
1
50.5
55.0
6
50.5
54.0
6
50.5
54.0
16.2
2/0
3
20.5
35.0
1
50.5
55.0
6
50.5
54.0
6
50.5
54.0
16.2
3/0
3
20.5
35.0
1
50.5
55.0
6
50.5
54.0
6
50.5
54.0
16.2
4/0
3
20.5
35.0
1
50.5
55.0
6
50.5
54.0
6
50.5
54.0
16.2
1/
Wrap 1 is innermost tape which is in contact with the conductor . Wraps 2, 3, and 4 are progressively further
away from the conductor core.
3