Only two standards I remember from my initiator research: Military, and
Pyrotechnics.
Off my top of head: Pyrotechnics display firing systems tend to be designed
around a 300ma no-fire, and 600-750ma all fire 12v specifications for "low
power" electric matches. High power electric matches, required 1A/1OHM all
fire.
There was a study in journal "Selected Pyrotechnic Publications of K.L. and
B.J. Kosanke":
Studies of Electric Match Sensitiveness, you might find interesting.
NASA standard initiator uses: 1A/1W no-fire and 3.5A all fire, with 1.0 ohm
bridge wire.
In my studies, the NASA standard is quasi-defacto electrical standard for
missile and space applications regardless of initiator design or program
(though you can find small missile exceptions).
Last but not least:
The lowly blasting cap is generally 1.5-2 ohms and has 1A per cap requirement
for all fire.
PS -Don't forget about coupled RF voltage initiation.
Hope this helps.
Jim Rosson
On January 5, 2021 at 2:47 PM Dr Edward Jones <RocketPioneer@xxxxxxxxx> wrote:
Are there 'best practices' or usual standards for NO-fire and
SURE-fire power for amateur solid rockets? I'm developing some
atypical bridgewires. Thanks.
Edward in Socorro