MIL-DTL-62187C
4.4.1.8 Short circuit protection verification. To determine conformance to 3.3.9, the
regulator shall be connected to the test configuration as shown in figure 12. A test shall be
considered successful when table V is followed in the order shown with the resulting circuit
breaker and lamp (L1) response. The regulator shall then successfully pass the test specified in
4.4.1.1.1 to verify that no circuit has been damaged.
TABLE V. Short circuit protection.
Circuit
SW1
SW2
Breaker 1/
L1
Open
Open
On
On
Close
Open
Off
Off
Open
Open
Off
Off
Open
Open
On
On
Open
Close
Off
Off
Open
Open
Off
Off
Open
Open
On
On
1/ Breaker will automatically trip off, but
must be reset by switching on by hand.
4.4.1.9 EMI verification. To determine conformance to 3.3.10, the regulator shall be
subjected to EMI tests for radiated and conducted broadband emissions in accordance with MIL-
STD-461, methods CE102 and RE102, or equivalent (see 4.2.1). The regulator shall be within
the limits as specified in figures 4 and 5.
4.4.1.10 Reverse polarity protection verification. To determine conformance to 3.3.11,
with the regulator circuit breaker switched on, 24 V dc shall be applied to pin C and the ground
to pin A for 1 minute. The regulator shall meet the performance test under 4.4.1.1.1 after
applying reverse polarity voltage to verify that no circuits have been damaged.
4.4.2 Interface requirements verifications. To determine conformance to 3.4, the
regulator shall be visually, functionally, and equipmentally examined to verify that envelope and
mounting dimensions are in accordance with Drawing 12354334. When specified (see 6.2),
conformance shall be demonstrated when installed on the vehicle for which the item is being
procured.
4.4.3 Support and ownership verifications. To determine conformance to 3.5, complete
each verification under 4.4.3.
4.4.3.1 Dissimilar metals verification. To determine conformance to 3.5.1, visually
verify that dissimilar metals are separated.
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