MIL-STD-1130 Connections, Electrical, Solderless WrappedThis standard establishes the requirements to produce mechanically and electrically stable, solderless wrapped, electrical connections made with single, solid, round wire and appropriately designed wrapposts terminals.This standard includes:a. Classes and requirements for solderless wrapped connections. b. Description and requirements for the wire used in making the solderless wrapped connections. c. Description and requirements for the wrappost used in making the solderless wrapped connections.

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MIL-STD-1130C

FIGURE 15. Unwrap test procedure B (see 5.6.3.)

5.6.4 Wrapper resistance. When measured as illustrated on figure 16, at the current specified in table V, the voltage drop across the wrapped connection shall not exceed 4 millivolts.

TABLE V. Wrapper resistance.

AWS

wire size

Conductor diameter

Current to be used to determine wrapper resistance (amperes)

inches

(mm)

0.010

0.0126

0.0159

0.0201

0.0253

0.0320

0.0403

(0.25) (0.32) (0.40)

(0.51) (0.64) (0.81) (1.02)

1.0

2.0

2.4

7.5

NOTES:

1. The stripping jaw shall engage at right angles to axis of the wrappost.

2. When the wrappost and stripping fixture are properly aligned, the clearance shall be such that there is no binding or wedging between jaw and wrapper.

3. Both sides of the stripping jaw shall be in the same plane, creating a flat surface contact with the wire on either side of the wrappost.

4. On a rectangular post, the jaws of the hook shall engage along the major dimension (cross section) of the terminal. The maximum total clearance between jaw and terminal shall not exceed 0.7 x diameter of the wire. The minimum clearance, when the terminal and stripping tool are properly aligned, shall be such that there is no binding between jaw and terminal.