MIL-STD-1901A
a. Be qualified in accordance with the requirements of MIL-I-23659, Appendix A
b. Not be capable of being initiated when exposed to the greater of: (1) Any electrical potential up to 500 volts (see paragraph 5.2.4.3) or;
(2) Any electrical potential that may be present in the IS prior to an irreversible commit to launch.
Note: Deflagration of the initiator is acceptable if initiator detonation is required to propagate to the pyrotechnic train and does not otherwise adversely affect the safety of
the system. Damage to or destruction of the initiator is acceptable if it does not otherwise adversely affect the safety of the system.
c. Not be capable of being initiated by any electrical potential as defined in paragraph 5.2.4.1.b when applied to any accessible part of the ISD after installation into the munition or any munition subsystem.
5.2.4.2 Interrupted firing energy train or pyrotechnic train. Unless otherwise specified, the initiator for an electrically fired interrupted firing energy or pyrotechnic train shall be qualified, as a minimum, to the following requirements:
a. Detonating or deflagrating devices shall meet the requirements listed for Class
A initiators in MIL-I-23659
b. For those initiators where the requirements of MIL-I-23659 are not appropriate, the developer shall receive service safety review authority concurrence with the qualification test and acceptance criteria.
5.2.4.3 500 Volt test requirement. For initiators to be used in electrically fired non-interrupted firing energy trains, when the maximum allowable electrical sensitivity and electrical cookoff tests of MIL-I-23659 can not be applied to the initiator, the following applies. A 500 volt test program shall be developed and presented for approval to the appropriate service safety authority for the planned 500-volt test program for qualification of the initiator. The test shall include, as a minimum, both 500 volts at various frequencies, waveforms, and voltages that may be present in the ignition system, whether resulting from normal functioning or failures.
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